This web page
features
the
Manual
for Substantive Examination Procedure
MANUAL FOR SUBSTANTIVE EXAMINATION PROCEDURE
CHAPTER
IV: PATENTABILITY
(See ANNEX 1 to CHAPTER IV, 9
Guidance for the assessment of inventive step )
(See ANNEX 2 to CHAPTER IV, 9
(CONCERNING INVENTIVE STEP))
|
1. General
|
Sec.21
R.200 |
1.1
There are four basic requirements for patentability:
(i)
There must
be an "invention" that can be considered as a “technical solution of a problem in any field of human activity”.
(ii)
The
invention must be "industrially applicable".
(iii)
The
invention must be "new".
(iv)
The
invention must involve an "inventive step".
These
requirements will be dealt with in turn in the following sections
IV, 2 and 3, 4, 5 to 8, and 9, respectively.
1.2
In addition to these four basic requirements, the examiner should
be aware of the following two requirements that are implicitly contained
in the IP-code and the Implementing Rules and Regulations: |
Sec.35.1
R.909(c)
R.407(1)(a)
R.407(1)(c) R.416 |
(i) The
invention must be such that it can be carried out by a person skilled in
the art (after proper instruction by the application); this follows from
Sec.35.1. Instances where the invention fails to satisfy this requirement
are given in C-II, 4.11.
(ii)
The
invention must be a “technical solution to a problem”, hence of a
"technical” character", to the extent that it must relate to a
technical field (R.407(1)(a)), must be concerned with a technical problem
(R.407(1)(c)), and must have technical features in terms of which the
matter for which protection is sought can be defined in the claim
(R.416(a)(b)), See also C-III, 2.1).
1.3
Sec. 21 of the IP-Code Convention does not require explicitly or
implicitly that an invention to be patentable must entail some technical
progress or even any useful effect. Nevertheless, advantageous effects, if
any, with respect to the prior art should be stated in the description
(R.407(1)(c)), and any such effects are often important in determining
"inventive step" (See IV, 9 here below). |
Sec.21
Sec.22 |
2. Inventions
2.1
Sec.21 gives a definition of what is meant by "invention", but
Sec.22 contains a non-exhaustive list of things which shall not be
regarded as patentable inventions. It will be noted that the exclusions in
Sec.22.1 and
Sec.22.2
are abstract (e.g. discoveries, scientific theories etc.) and the
exclusions in Sec.2.5 are non-technical (e.g. aesthetic creations). In
contrast to this, an "invention" within the meaning of Sec.21
must be of both a concrete and a technical character (See IV, 1.2 (ii)
here above).
The
exclusions under Sec.22.1, 22.2 and 22.5 are dealt with under IV, 2.2 and
2.3 here below. The exclusions under Sec.22.4 (inventions in the
biological field) and 22.6 (public order and morality) are dealt with
under IV, 3 here below. The exclusions under Sec.22.3 (inventions in the
medical field) and under Sec.27 (industrial applicability) are dealt with
under IV, 4 here below. |
Sec.21
R.201 R.415 |
2.1a
Examples of what an invention may be are given in Sec.21, R.201 and
R.415, i.e.
a)
a useful
machine;
b)
a product;
c)
or process
or an improvement of any of the foregoing;
d)
microorganism;
and
e)
non-biological
and microbiological processes, or the use of an item in a specific process
and/or for a specific purpose.
2.2
In considering whether the subject-matter of an application is an
invention within the meaning of Sec.21, there are two general points the
examiner must bear in mind.
Firstly,
any exclusion from patentability under Sec.22.1 or Sec.22.2 will in
general apply only to the extent to which the application relates to the
excluded subject-matter as such. Secondly, the examiner should disregard
the form or kind of claim and concentrate on its content in order to
identify the real contribution which the subject-matter claimed,
considered as a whole, adds to the known art. If this contribution is not
of a technical character, there is no invention within the meaning of
Sec.21. Thus, for example, if the claim is for a known manufactured
article having a painted design or certain written information on its
surface, the contribution to the art is as a general rule merely an
aesthetic creation or presentation of information. Similarly, if a
computer program is claimed in the form of a physical record, e.g. on a
conventional tape or disc, the contribution to the art is still no more
than a computer program. In these instances the claim relates to excluded
subject-matter as such and is therefore not allowable. If, on the other
hand, a computer program in combination with a computer causes the
computer to operate in a different way from a technical point of view, the
combination might be patentable.
It
must also be borne in mind that the basic test of whether there is an
invention within the meaning of Sec.22, is separate and distinct from the
questions whether the subject-matter is susceptible of industrial
application, is new and involves an inventive step.
2.3
The items of
Sec.22.1, 22.2 and 22.5 will now be dealt with in turn,and
further examples will be given in order better to clarify the distinction
between what is patentable and what is not. |
Sec.22.1 R.202(a) |
Discoveries
If
a person finds out a new property of a known material or article, that is
a mere discovery and therefore not patentable. If however a person puts
that property to practical use, an invention has been made which may be
patentable. For example, the discovery that a particular known material is
able to withstand mechanical shock would not be patentable, but a railway
sleeper made from that material could well be patentable. To find a
substance freely occurring in nature is also mere discovery and therefore
not patentable. However, if a substance found in nature has first to be
isolated from its surroundings and a process for obtaining it is
developed, that process is patentable. Moreover, if the substance can be
properly characterized either by its structure, by the process by which it
is obtained or by other parameters (See III, 4.7a) and it is
"new" in the absolute sense of having no previously recognized
existence, then the substance per se may be patentable (See also IV, 7.3
here below). An example of such a case is that of a new substance which is
discovered as being produced by a micro-organism. |
Sec.22.1 R.202(a) |
Scientific theories
These
are a more generalised form of discoveries, and the same principle
applies. For example, the physical theory of semiconductivity would not be
patentable. However, new semiconductor devices and processes for
manufacturing these may be patentable. |
Sec.22.1 R.202(a) |
Mathematical methods
These
are a particular example of the principle that purely abstract or
intellectual methods are not patentable. For example, a shortcut method of
division would not be patentable but a calculating machine constructed to
operate accordingly may well be patentable. A mathematical method for
designing electrical filters is not patentable; nevertheless filters
designed according to this method could be patentable provided they have a
novel technical feature to which a product claim can be directed. |
Sec.22.2 R.202(b) |
Schemes, rules and
methods for performing mental acts, playing games or doing business
These
are further examples of items of an abstract or intellectual character. In
particular, a scheme for learning a language, a method of solving
cross-word puzzles, a game (as an abstract entity defined by its rules) or
a scheme for organising a commercial operation would not be patentable.
However, novel apparatus for playing a game or carrying out a scheme might
be patentable. |
Sec.22.2
R.202(b) |
Programs for computers
The
basic patentability considerations here are exactly the same as for the
other exclusions listed in Sec.22. However a data-processing operation can
be implemented either by means of a computer program or by means of
special circuits, and the choice may have nothing to do with the inventive
concept but be determined purely by factors of economy or practicality.
With this point in mind, examination in this area should be guided by the
following approach:
A
computer program claimed by itself or as a record on a carrier, is not
patentable irrespective of its content. The situation is not normally
changed when the computer program is loaded into a known computer. If
however the subject-matter as claimed makes a technical contribution to
the known art, patentability should not be denied merely on the ground
that a computer program is involved in its implementation. This means, for
example, that program-controlled machines and program-controlled
manufacturing and control processes should normally be regarded as
patentable subject-matter. It follows also that, where the claimed
subject-matter is concerned only with the program-controlled internal
working of a known computer, the subject-matter could be patentable if it
provides a technical effect. As an example consider the case of a known
data-processing system with a small fast working memory and a larger but
slower further memory. Suppose that the two memories are organised under
program control, in such a way that a process which needs more address
space than the capacity of the fast working memory can be executed at
substantially the same speed as if the process data were loaded entirely
in that fast memory.
The
effect of the program in virtually extending the working memory is of a
technical character and might therefore support patentability. |
Sec.22.5 R.202(e) |
Aesthetic creations
An
aesthetic creation relates to an article (e.g. a painting or sculpture)
having aspects which are other than technical and the appreciation of
which is essentially subjective. If, however, the article happens also to
have technical features, it might be patentable, a tyre tread being an
example of this. The aesthetic effect itself is not patentable, neither in
a product nor in a process claim. For example a book characterized by the
aesthetic or artistic effect of its information contents, of its layout or
of its letterfont, would not be patentable, and neither would a painting
characterized by the aesthetic effect of its subject or by the arrangement
of colours, or by the artistic (e.g. Impressionist) style. Nevertheless,
if an aesthetic effect is obtained by a technical structure or other
technical means, although the aesthetic effect itself is not patentable,
the means of obtaining it may be. For example, a fabric may be provided
with an attractive appearance by means of a layered structure not
previously used for
this purpose, in which case a fabric incorporating such structure mightbe
patentable. Similarly, a book characterized by a technical feature of the
binding or pasting of the back, may be patentable, even though the effect
thereof is solely aesthetic, similarly also a painting characterized by
the kind of cloth, or by the dyes or binders used. Also a process of
producing an aesthetic creation may comprise a technical innovation and
thus be patentable. For example, a diamond may have a particularly
beautiful shape (not of itself patentable) produced by a new technical
process. In this case, the process may be patentable. Similarly, a new
printing technique for a book resulting in a particular layout with
aesthetic effect, may well be patentable, together with the book as a
product of that process. Again a substance or composition characterized by
technical features serving to produce a special effect with regard to
scent or flavour, e.g. to maintain a scent or flavour for a prolonged
period or to accentuate it, may well be patentable.
Presentations of
information
Although
there is no corresponding, explicit provision in the IP-code and the IRR,
mere representation of information characterized solely by the content of the information will not usually be
patentable since it cannot be considered as a technical solution to a problem. This applies whether the claim is
directed to the presentation of the information per se (e.g. by acoustical
signals, spoken words, visual displays), to information recorded on a
carrier (e.g. books characterized by their subject), gramophone records
characterized by the musical piece recorded, traffic signs characterized
by the warning thereon, magnetic computer tapes characterized by the data
or programs recorded), or to processes and apparatus for presenting
information (e.g. indicators or recorders characterized solely by the
information indicated or recorded). If, however, the presentation of
information has new technical features there could be patentable
subject-matter in the information carrier or in the process or apparatus
for presenting the information. The arrangement or manner of
representation, as distinguished from the information content, may well
constitute a patentable technical feature. Examples in which such a
technical feature may be
present are: a telegraph apparatus or communication system characterized
by the use of a particular code to represent the characters (e.g. pulse
code modulation); a measuring instrument designed to produce a particular
form of graph for representing the measured information; a gramophone
record characterized by a particular groove form to allow stereo
recordings; or a diapositive with a soundtrack arranged at the side of it.
2.4
Under certain circumstances, protection for non-patentable items
may be sought for by means of a utility model application or an industrial
design application (aesthetic aspects of an article of manufacture) or by
means of the law relating to copyright (computer software as such).
Reference
is made to the corresponding provisions in the IP-code and the IRR. |
Sec.22.6 |
3. Further exclusions
from patent protection – Sec.22.6 and 22.4
3.1
Any invention, the publication or exploitation of which would be
contrary to "public order or morality” is specifically excluded
from patentability. The purpose of this is to exclude from protection
inventions likely to induce riot or public disorder, or to lead to
criminal or other generally offensive behaviour (See also II, 7.1); one
obvious example of subject-matter which should be excluded under this
provision is a letter-bomb. This provision is likely to be invoked only in
rare and extreme cases. A fair test to apply is to consider whether it is
probable that the public in general would regard the invention as so
abhorrent that the grant of patent rights would be inconceivable. If it is
clear that this is the case, objection should be raised under Sec.22.6;
otherwise not. |
R.412 |
3.2
Exploitation is not to be deemed to be contrary to "public
order" or morality merely because it is prohibited by law or
regulation in the Philippines. For example, a product could still be
manufactured under a Philippine patent for export to states in which its
use is not prohibited.
3.3
In some cases refusal of a patent may not be necessary. This may
result when the invention has both an offensive and a non-offensive use:
e.g. a process for breaking open locked safes, the use by a burglar being
offensive but the use by a locksmith in the case of emergency inoffensive.
In such a case no objection arises under Sec.22.6, but if the application
contains an explicit reference to a use which is contrary to "public
order or morality”, deletion of this reference should be required under
the terms of R.412. |
Sec.22.4 |
3.4
Also excluded from patentability are "plant or animal breeds
varieties or essentially biological processes for the production of plants
or animals". One reason for this exclusion is that, at least for
plant varieties, other means of obtaining legal protection are available
in most countries. The question whether a process is "essentially
biological" or “non-biological” (Sec.22.4, 2nd
sentence) is one of degree depending on the extent to which there is
technical intervention by man in the process; if such intervention plays a
significant part in determining or controlling the result it is desired to
achieve, the process would not be excluded. To take some examples, a
method of crossing, inter-breeding, or selectively breeding, say, horses
involving merely selecting for breeding and bringing together those
animals having certain characteristics would be essentially biological and
therefore not patentable. On the other hand, a process of treating a plant
or animal to improve its properties or yield or to promote or suppress its
growth e.g. a method of pruning a tree, would not be essentially
biological since although a biological process is involved, the essence of
the invention is technical; the same could apply to a method of treating a
plant characterized by the application of a growth-stimulating substance
or radiation. The treatment of soil by technical means to suppress or
promote the growth of plants is also not excluded from patentability (See
also IV, 4.3). |
Sec.22.4
2nd sentence
Sec.27 R.208 |
3.5
As expressly stated in Sec.22.4, 2nd sentence, the
exclusion from patentability referred to in the preceding paragraph does
not apply to microorganisms and non-biological and microbiological
processes. The term "microbiological process" is to be
interpreted as covering not only industrial processes using
micro-organisms but also processes for producing new micro-organisms, e.g.
by genetic engineering. The product of a microbiological process may also
be patentable per se (product claim). A micro-organism can also be
protected per se (Sec.22.4, 2nd sentence). The term
micro-organism in general includes not only bacteria and yeasts, but also
fungi, algae, protozoa and human, and possibly animal and plant cells,
i.e. all generally unicellular organisms with dimensions beneath the
limits of vision which can be propagated and manipulated in a laboratory,
including plasmids and viruses.
3.6
In the case of microbiological processes, particular regard should
be had to the requirement of repeatability referred to in II, 4.11. As for
biological material to be deposited under the terms of R.408 and R.409,
repeatability is assured by the possibility of taking samples, and there
is thus no need to indicate another process for the production of the
biological material.
4. Industrial
application Sec.27 - Medical inventions Sec.22.3
4.1
An invention shall be considered “industrially applicable” if
it can be produced and used in any kind of industry. Agriculture is in
general considered as an industry as well. "Industry" should be
understood in its broad sense as including any physical activity of
"technical character" (See IV, 1.2 here above), i.e. an activity
which belongs to the useful or practical arts as distinct from the
aesthetic arts; it does not necessarily imply the use of a machine or the
manufacture of an article and could cover e.g. a process for dispersing
fog, or a process for converting energy from one form to another. Thus,
Sec.27 excludes from patentability very few "inventions" which
are not already excluded by the list in Sec.22 (See IV, 2.1 here above).
One further class of "invention" which would be excluded,
however, would be articles or processes alleged to operate in a manner
clearly contrary to well-established physical laws, e.g. a perpetual
motion machine. Objection could arise under Sec.27 only in so far as the
claim specifies the intended function or purpose of the invention, but if,
say, a perpetual motion machine is claimed merely as an article having a
particular specified construction then objection should be made under
Sec.35.1 (See II, 4.11). |
Sec.22.3 |
4.2
"Methods for treatment of the human or animal body by surgery
or therapy and diagnostic methods practised on the human or animal body”
are excluded from patent protection. Moreover, they will not in general be
regarded as inventions which are industrially applicable.
“Products and composition for use in any of these methods” are not
excluded from patent protection.
Patents
may, however, also be obtained for surgical, therapeutic or diagnostic
instruments or apparatus for use in such methods. Also the manufacture of
prostheses or artificial limbs, as well as taking measurements therefor on
the human body, would be patentable, so that a method of manufacturing a
prosthetic tooth which involves making a model of a patient's teeth in the
mouth would not be excluded from patentability either, provided the
prosthetic tooth is fabricated outside of the body.
Patents
may also be obtained for new products for use in these methods of
treatment or diagnosis, particularly substances or compositions. However
in the case of a known substance or composition, this may only be patented
for use in these methods if the known substance or composition was not
previously disclosed for use in surgery, therapy or diagnostic methods
practised on the human or animal body ("first medical use"). The
same substance or composition cannot subsequently be patented for any
other use of that kind. A claim to a known substance or composition for
the first use in surgical, therapeutic and/or diagnostic methods should be
in a form such as: "substance or composition X" followed by the
indication of the use, for instance" for use as a
medicament", " as an antibacterial agent " or "
for curing disease Y". In contrast to what is stated in III, 4.8
these types of claims will be regarded as restricted to the substance or
composition when presented or packaged for the specified use. This
constitutes an exception from the general principle that product claims
can only be obtained for (absolutely) novel products. However this does
not mean that product claims for the first medical use need not fulfil all
other requirements of patentability, especially that of inventive step. A
claim in the form "Use of substance or composition X for the
treatment of disease Y" will be regarded as relating to a method
for treatment explicitly excluded from patentability by Sec.22.3 and
therefore will not be accepted.
If
an application discloses for the first time a number of distinct surgical,
therapeutic or diagnostic uses for a known substance or composition,
normally in the one application independent claims each directed to the
substance or composition for one of the various uses may be allowed; i.e.
objection should not, as a general rule, be raised that there is lack of
unity of invention.
A
claim in the form "Use of a substance or composition X for the
manufacture of a medicament for therapeutic application Z" is
allowable for either a first or "subsequent" (second or further)
such application, if this application is new and inventive. The same
applies to claims in the form "Method for manufacturing a medicament
intended for therapeutic application Z, characterized in that the
substance X is used" or the substantive equivalents thereof. In cases
where an applicant simultaneously discloses more than one
"subsequent" therapeutic use, claims of the above type directed
to these different uses are allowable in the one application, but only if
they form a single general inventive concept (Sec.38).
4.3
It should be noted that Sec.22.3 excludes only methods of treatment
by surgery or therapy and diagnostic methods. It follows that other
methods of treatment of live human beings or animals (e.g. treatment of a
sheep in order to promote growth, to improve the quality of mutton or to
increase the yield of wool) or other methods of measuring or recording
characteristics of the human or animal body are patentable provided that
(as would probably be the case) such methods are of a technical, and not
essentially biological character (See IV, 3.4 here above) and provided
that the methods are industrially applicable. The latter proviso is
particularly important in the case of human beings.
For
example an application with a claim for a method of contraception, which
is to be applied in the private and personal sphere of a human being, may
not be considered “industrial applicable”. However, an application
containing claims directed to the purely cosmetic treatment of a human by
administration of a chemical product could be considered as
“industrially applicable”. A cosmetic treatment involving surgery or
therapy would not however be patentable (See below).
A
treatment or diagnostic method, to be excluded, would generally have to be
carried out on the living human or animal body. A treatment of or
diagnostic method practised on a dead human or animal body would therefore
not be excluded from patentability by virtue of Sec.. Treatment of body
tissues or fluids after they have been removed from the human or animal
body, or diagnostic methods applied thereon, are not excluded from
patentability in so far as these tissues or fluids are not returned to the
same body. Thus the treatment of blood for storage in a blood bank or
diagnostic testing of blood samples is not excluded, whereas a treatment
of blood by dialysis with the blood being returned to the same body would
be excluded.
Regarding
methods which are carried out on, or in relation to, the living human or
animal body, it should be borne in mind that the intention of Sec.22.3 is
to free from restraint non-commercial and non-industrial medical and
veterinary activities. Interpretation of the provision should avoid the
exclusions from going beyond their proper limits.
However,
in contrast to the subject-matter referred to e.g. Sec.22.1 and Sec.22.2,
which are in general only excluded from patentability if claimed as such,
a claim is not allowable under Sec.22.3 if it includes at least one
feature defining a physical activity or action that constitutes a method
step for treatment of the human or animal body by surgery or therapy or a
diagnostic method step to be exercised on the human or animal body. In
that case, whether or not the claim includes or consists of features
directed to a technical operation performed on a technical object is
legally irrelevant.
Taking
the three exclusions in turn:
Surgery defines the nature of the treatment rather than
its purpose. Thus, e.g. a method of treatment by surgery for cosmetic
purposes is excluded, as well as surgical treatment for therapeutic
purposes.
Therapy implies the curing of a disease or malfunction of
the body and covers prophylactic treatment, e.g. immunisation against a
certain disease or the removal of plaque.
Diagnostic methods likewise do not cover all methods related to
diagnosis. Methods for obtaining information only (data, physical
quantities) from the living human or animal body may not necessarily
excluded by Sec.22.3, if the information obtained merely provides
intermediate results which on their own do not enable a decision to be
made on the treatment necessary. Examples of such methods include X-ray
investigations, NMR studies, and blood pressure measurements.
4.4
Methods of testing
generally should be regarded as inventions susceptible of industrial
application and therefore patentable if the test is applicable to the
improvement or control of a product, apparatus or process which is itself
susceptible of industrial application. In particular, the utilisation of
test animals for test purposes in industry, e.g. for testing industrial
products (for example for ascertaining the absence of pyrogenetic or
allergic effects) or phenomena (for example for determining water or air
pollution) would be patentable.
4.5
It should be noted that "susceptibility of industrial
application" is not a requirement that overrides the restriction of
Sec.22, e.g. an administrative method of stock control is not patentable,
having regard to Sec.22.2 , even though it could be applied to the store
of spare parts of a factory. On the other hand, although an invention must
be industrially applicable and the description must indicate, where this
is not obvious, the way in which the invention is so industrially
applicable (See II, 4.12), the claims need not necessarily be restricted
to the indicated industrial application(s). |
Sec.21 Sec.23
Sec.24.1 |
5. Novelty; prior art
5.1
Sec.21 requires an invention to be new in order to be patentable.
Sec.23 gives a negative definition of novelty, i.e. that “an invention
shall not be considered new if it forms part of a prior art”. The
"prior art" is defined in Sec.24.1 as
consisting of "everything which has been made available to the public
anywhere in the world, before the filing date or the priority date of the
Philippine application claiming the invention”.
|
R.204(a), 1st
sentence
R.204(a), 2nd
sentence
R.204(a), 2nd
sentence
|
The
width of this definition should be noted. R.204(a), 1st
sentence indicates that there are no restrictions whatever as to the
geographicallocation
where, or the language or manner (e.g. by means of a written or oral
description, by use, or in any other way) in which the relevant
information was made available to the public; also no age limit is
stipulated for the documents or other sources of the information. There
are however certain specific exclusions (See IV, 8 here below). A prior
use in a foreign country must however by disclosed in printed documents or
in a tangible form. However, since the "prior art" available to
the examiner will mainly consist of the documents listed in the search
report, the following section IV, 5.2 deals with the question of public
availability only in relation to written description (either alone or in
combination with an earlier oral description or use). Other kinds of prior
art are discussed in section IV, 5.4 here below.
5.2
A written description, i.e. a document, should be regarded as made
available to the public if, at the relevant date, it was possible for
members of the public to gain knowledge of the content of the document and
there was no bar of confidentiality restricting the use or dissemination
of such knowledge. For instance, German utility models ("Gebrauchsmuster")
are already publicly available as of their date of entry in the Register
of utility models ("Eintragungstag"), which precedes the date of
announcement in the Patent Bulletin ("Bekanntmachung im Patentblatt").
The search report also may cite documents in which doubts with regard to
the fact of public availability and doubts concerning the precise date of
publication of a document have not, or not fully, been removed.
If the applicant contests the public availability or assumed date
of publication of the document the examiner should consider whether to
investigate the matter further. If the applicant shows sound reasons for
doubting whether the document forms part of the "prior art" in
relation to his application and any further investigation does not produce
evidence sufficient to remove that doubt the examiner should not pursue
the matter further. The only other problem likely to arise for the
examiner is where:
(i)
a document
reproduces an oral description (e.g. a public lecture) or gives an account
of a prior use (e.g. display at a public exhibition); and
(ii)
only the
oral description or lecture was publicly available before the "date
of filing" of the European application, the document itself being
published on or after this date.
In
such cases, the examiner should start with the assumption that the
document gives a true account of the earlier lecture, display or other
event and should therefore regard the earlier event as forming part of the
"prior art". If, however, the applicant gives sound reasons for
contesting the truth of the account given in the document then again the
examiner should not pursue the matter further.
5.3
It should be noted that the relevant date for establishing whether
a piece of prior art belongs to the state of the art is the date of
filing, or where a priority date has been validly claimed, the priority
date (Sec.24). If a
priority date has not been validly claimed (subject-matter claimed not
disclosed in priority document), the filing date will become the relevant
date for this purpose. For details, See V.
It
should be remembered that different claims, or different alternatives
claimed in one claim, may have different relevant dates, depending on the
validity of the priority for the subject-matter concernedThe question
of novelty must be considered against each claim (or part of a claim where
a claim specifies a number of alternatives) and the prior art in relation
to one claim or one part of a claim may include matter which cannot be
cited against another claim or part of a claim because the latter has an
earlier relevant date.
Of
course if all the matter in the prior art was made available to the public
before the date of the earliest priority document, the examiner need not
(and should not) concern himself with the allocation of priority dates.
5.4
In determining whether other kinds of prior art (which could be
introduced into the proceedings e.g. by a third party under Sec.47) have
been made available to the public, the following issues will need to be
considered, depending on the circumstances and the type of prior art:
Prior
use which is not present in the Philippines, even if widespread in a
foreign country, cannot form part of the prior art if such prior use is
not disclosed in printed documents or in any tangible form.
5.4a
Prior art made available to the public by use or in any other way
Types
of use and instances of prior art made available in any other way
Use
may be constituted by producing, offering, marketing or otherwise
exploiting a product, or by offering or marketing a process or its
application or by applying the process. Marketing may be effected, for
example, by sale or exchange. The prior art may also be made available to
the public in other ways, as for example by demonstrating an object or
process in specialist training courses or on television. Availability to
the public in any other way also includes all possibilities which
technological progress may subsequently offer of making available the
aspect of the prior art concerned.
Matters
to be determined as regards use:
When
dealing with an allegation that an object or process has been used in such
a way that it is comprised in the prior art, the following details will
need to be checked:
Is
the alleged use relevant at all?
The
date on which the alleged use occurred, i.e. whether there was any
instance of use before the relevant date (prior use).
What
has been used, in order to determine the degree of similarity between the
object used and the subject-matter claimed.
All
the circumstances relating to the use, in order to determine whether and
to what extent it was made available to the public, as for example the
place of use and the form of use. These factors are important in that, for
example, the details of a demonstration of a manufacturing process in a
factory or of the delivery and sale of a product may well provide
information as regards the possibility of the subject-matter having become
available to the public.
5.4b
Ways in which subject-matter may be made available
General
principles
Subject-matter
should be regarded as made available to the public by use or in any other
way if, at the relevant date, it was possible for members of the public to
gain knowledge of the subject-matter and there was no bar of
confidentiality restricting the use or dissemination of such knowledge
(See also IV, 5.2 with reference to written descriptions). This may, for
example, arise if an object is unconditionally sold to a member of the
public, since the buyer thereby acquires unlimited possession of any
knowledge which may be obtained from the object. Even where in such cases
the specific features of the object may not be ascertained from an
external examination, but only by further analysis, those features may
nevertheless to be considered as having been made available to the public.
If,
on the other hand, an object could be Seen in a given place (a factory,
for example) to which members of the public not bound to secrecy,
including persons with sufficient technical knowledge to ascertain the
specific features of the object, had access, all knowledge which an expert
was able to gain from a purely external examination is to be regarded as
having been made available to the public. In such cases, however, all
concealed features which could be ascertained only by dismantling or
destroying the object will not be deemed to have been made available to
the public.
Agreement
on secrecy
The
basic principle to be adopted is that subject-matter has not been made
available to the public by use or in any other way if there is an express
or tacit agreement on secrecy which has not been broken (concerning the
particular case of a non-prejudicial disclosure arising from an evident
abuse in relation to the applicant, See IV, 8 below), or if the
circumstances of the case are such that such secrecy derives from a
relationship of good faith or trust. Good faith or trust are factors which
may occur in contractual or commercial relationships.
Use
on non-public property
As
a general rule, use on non-public property, for example in factories and
barracks, is not considered as use made available to the public, because
company employees and soldiers are usually bound to secrecy, save in cases
where the objects or processes used are exhibited, explained or shown to
the public in such places, or where specialists not bound to secrecy are
able to recognize their essential features from the outside. Clearly the
above-mentioned "non-public property" does not refer to the
premises of a third party to whom the object in question was
unconditionally sold or the place where the public could See the object in
question or ascertain features of it.
Example
of the accessibility of objects used
A
press for producing light building (hard fibre) boards was installed in a
factory shed. Although the door bore the notice "Unauthorised persons
not admitted", customers (in particular dealers in building materials
and clients who were interested in purchasing light building boards), were
given the opportunity of Seeing the press although no form of
demonstration or explanation was given. An obligation to secrecy was not
imposed as, according to witnesses, the company did not consider such
visitors as a possible source of competition. These visitors were not
genuine specialists, i.e. they did not manufacture such boards or presses,
but were not entirely laymen either. In view of the simple construction of
the press, the essential features of the invention concerned were bound to
be evident to anyone observing it. There was therefore a possibility that
these customers, and in particular the dealers in building materials,
would recognize these essential features of the press and, as they were
not bound to secrecy, they would be free to communicate this information
to others.
Example
of the inaccessibility of a process
The
subject of the patent concerns a process for the manufacture of a product.
As proof that this process had been made available to the public by use, a
similar already known product was asserted to have been produced by the
process claimed. However, it could not be clearly ascertained, even after
an exhaustive examination, by which process it had been produced.
5.4c
Prior art made available by means of oral description
Cases
of oral description
The
prior art is made available to the public by oral description when facts
are unconditionally brought to the knowledge of members of the public in
the course of a conversation, a lecture, a conference, or by means of
radio, television or sound reproduction equipment (tapes and records).
Non-prejudicial
oral description
The
prior art will not be affected by oral descriptions under the
circumstances referred to in Sec.25 and in IV, 8 here below.
Matters
to be determined in cases of oral description
Once
again, in such cases the following details will have to be determined:
When
the oral description took place, what was described orally, whether the
oral description was made available to the public ; this will also depend
on the type of oral description (conversation, lecture) and on the place
at which the description was given (public meeting, factory hall.
5.4d Prior art made available to the public in writing
or by any othermeans
For
this prior art, the details such as those referred to above might have to
be determined, if they are not clear from the written or otherwise made
available disclosure itself. |
Sec.24.2 |
6. Conflict with other
Philippine applications
6.1
The prior art in addition comprises the whole content of other
applications for a patent, utility model or industrial design published
under Republic Act No. 8293 (Sec.44 for patents), filed or effective in
the Philippines, with a filing date or a validly claimed priority date
that is earlier than the filing or priority date of the application under
examination, even if the earlier patent, utility model or industrial
design publication is published on or after the date of filing or the
priority date of the application being examined. This does not apply when
the applicant or the inventor identified in both applications is one and
the same. Concerning this case, See however IV, 6.4 here below. |
R.204(b), 2nd
sentence
|
Hence,
where two or more applications are independently filed with respect to the
same invention, and the later applications are filed before the first
application or earlier application is published, the whole contents of the
first or earliest filed application published
in accordance with Sec. 44 on or after the filing date or priority date of
the later filed application shall be
novelty destroying with respect to the later filed application.
Whether
a piece of prior art has to be taken into consideration or not may depend
on whether the priority dates of the application under examination and of
the earlier application have been validly claimed (See Chapter V). |
R.206(b) |
According
to R.206(b) such earlier applications are part of the prior art only when
considering novelty and not when considering inventive step.
By
the whole content of a Philippines application is meant the whole
disclosure,
i.e. the description, drawings and claims, including:
(i)
any matter
explicitly disclaimed (with the exception of disclaimers for unworkable
embodiments),
(ii) any matter
for which an allowable reference (See II, 4.18, penultimate paragraph) to
other documents is made or
(iii) prior art
insofar as explicitly described.
However,
the "content" does not include any priority document (the
purpose of such document being merely to determine to what extent the
priority date is valid for the disclosure of the Philippines application
(See V, 1.2)) nor, in view of Sec.37,
last sentence, the abstract.
6.1a
Whether a published Philippine application can be a conflicting
application under Sec.24.2 is determined firstly by its filing date and
the date of its publication, which have to be before, respectively on or
after the filing date of the application under examination. If such an
application validly claims priority (See first proviso in Sec.24.2) , the
priority date replaces the filing date for that subject-matter in the
application which corresponds to the priority application. If a priority
claim was abandoned or otherwise lost with effect from a date prior to the
publication, the filing date and not the priority date of such an
application is relevant, irrespective of whether or not the priority claim
might have conferred a valid priority right.
Further
it is required that the conflicting application was still pending at its
publication date. If the application has been withdrawn or otherwise lost
before the date of publication, but published because the Office could not
stop its publication, the publication has no effect under Sec.24.2
pursuant to Sec.25(b)(a).
6.2
Earlier application(s) not yet published
In
cases where the application under examination is ready for grant before
the search for conflicting applications could be finalised (e.g. because
some of the potentially interferring applications have not yet been
published), See C-VI, 8.4. |
Sec.24.2
R.204(b)
2nd
proviso |
6.3 The
second proviso in Sec.24.2 specifies that an application otherwise meeting
the definitions given in Sec.24.2 does not
belong to the prior art to be taken into consideration if in this
application and in the application under examination one and the same.
Further, the IP-code does not deal explicitly with the case of co-pending
Philippines applications of the same effective date. |
R.915 |
However,
it is an accepted principle in most patent systems that two patents shall
not be granted to the same applicant for one invention. This principle is
e.g. reflected in R.915. It is permissible to allow an applicant to proceed
with two applications having the same description where the claims are
quite distinct in scope and directed to different inventions. However, in
the rare case in which there are two or more Philippines applications of
the type referred to here above, from the same applicant, and the claims
of those applications relate to the same invention (the claims conflicting
in the manner explained in VI, 9.6), the applicant should be told that he
must either amend one or more of the applications in such a manner that
they no longer claim the same invention, or choose which one of those
applications he wishes to proceed to grant. |
R.304(b), 2nd
paragraph
|
6.4
Concerning applications of the same effective date and received
from two different applicants, See R.304, 2nd paragraph.
7. Test for Novelty
7.1
It should be noted that in considering novelty (as distinct from
inventive step), it is not permissible to combine separate items of prior
art together (See IV, 9.7). However, if a document (the
"primary" document) refers explicitly to another document as
providing more detailed information on certain features, the teaching of
the latter may be regarded as incorporated into the document containing
the reference, if the document referred to was available to the public on
the publication date of the document containing the reference. For
conflicting applications, See III,
6.1 here above and II, 4.18.
The
same principle applies to any matter explicitly disclaimed (except
disclaimers which exclude unworkable embodiments) and to prior art insofar
as explicitly described. It is further permissible to use a dictionary or
similar document of reference in order to interpret a special term used in
the primary document. The effective date for novelty purposes (See IV, 7.3
here below) is always the date of the primary document.
7.2
A document takes away the novelty of any claimed subject-matter
derivable directly and unambiguously from that document including any
features implicit to a person skilled in the art in what is expressly
mentioned in the document, e.g. a disclosure of the use of rubber in
circumstances where clearly its elastic properties are used even if this
is not explicitly stated takes away the novelty of the use of an elastic
material. The limitation to subject-matter "derivable directly and
unambiguously" from the document is important.
Thus,
when considering novelty, it is not correct to interpret the teaching of a
document as embracing well-known equivalents which are not disclosed in
the documents; this is a matter of obviousness.
7.3
In determining novelty a prior document should be read as it would
have been read by a person skilled in the art on the effective date of the
document. By "effective" date is meant the publication date in
the case of a
previously published document and the date of filing (or priority date,
where appropriate) in the case of a document according to Sec.24.2.
However,
it should be noted that a chemical compound, the name or formula of which
was mentioned in a document, is not considered as known unless the
information in the document, together, where appropriate, with knowledge
generally available on the effective date of the document, enable it to be
prepared and separated or, for instance in the case of a product of
nature, only to be separated.
7.4
In considering novelty it should be borne in mind that a generic
disclosure does not usually take away the novelty of any specific example
falling within the terms of that disclosure, but that a specific
disclosure does take away the novelty of a generic claim embracing that
disclosure, e.g. a disclosure of copper takes away the novelty of metal as
a generic concept, but not the novelty of any metal other than copper, and
one of rivets takes away the novelty of fastening means as a generic
concept, but not the novelty of any fastening other than rivets.
7.5
In the case of a prior document, the lack of novelty may be
apparent from what is explicitly stated in the document itself.
Alternatively, it may be implicit in the sense that, in carrying out the
teaching of the prior document, the skilled person would inevitably arrive
at a result falling within the terms of the claim. An objection of lack of
novelty of this kind should be raised by the examiner only where there can
be no reasonable doubt as to the practical effect of the prior teaching
(for a second non-medical use, however, See IV, 7.6 here below).
Situations of this kind may also occur when the claims define the
invention, or a feature thereof, by parameters (See III, 4.7a). It may
happen that in the relevant prior art a different parameter, or no
parameter at all, is mentioned. If the known and the claimed products are
identical in all other respects (which is to be expected if, for example,
the starting products and the manufacturing processes are identical), then
in the first place an objection of lack of novelty arises. If the
applicant is able to show, e.g. by appropriate comparison tests, that
differences do exist with respect to the parameters, it is questionable
whether the application discloses all the features essential to
manufacture products having the parameters specified in the claims
(Sec.35.1).
7.6
In determining novelty of the subject-matter of claims the examiner
should have regard to the guidance given in III, 4.4 to 4.13. He should
remember that, particularly for claims directed to a physical entity,
non-distinctive characteristics of a particular intended use, should be
disregarded (See III, 4.8 to 4.9). For example, a claim to a substance X
for use as a catalyst would not be considered to be novel over the same
substance known as a dye, unless the use referred to implies a particular
form of the substance (e.g. the presence of certain additives) which
distinguishes it from the known form of the substance. That is to say,
characteristics not explicitly stated, but implied by the particular use,should
be taken into account (See the example of a "mold for molten
steel" in III, 4.8).
It
should further be borne in mind that a claim to the use of a known
compound for a particular purpose (second non-medical use), which is based
on a technical effect, should be interpreted as including that technical
effect as a functional technical feature, and is accordingly not open to
objection under Sec.23 and 24.1, provided that such technical feature has
not previously been made available to the public. For claims to a second
or further medical use, See IV, 4.2, here above. |
Sec.25.1 |
8. Non-prejudicial
disclosures
8.1
There are three specified instances in which a prior disclosure of
the information contained in the application during the twelve months
preceding the filing date or the priority date of the application shall
not prejudice the applicant on the ground of lack of novelty, viz. if such
disclosure was made by: |
Sec.25.1(a)
Sec.25.1(b)
Sec.25.1(c)
Sec.25.2 Sec.28
Sec.67 |
(a)
The inventor;
(b)
A foreign patent office, the Bureau or the Office, and the
information was contained (a) in another application filed by the inventor
and should not have been disclosed by the office, or (b) in an application
filed without the knowledge or consent of the inventor by a third party
which obtained the information directly or indirectly from the inventor;
or
(c)
A third party which obtained the information directly or indirectly
from the inventor.
For
the purposes of Sec.25.1, “inventor”
also means any person who, at the filing date of application, had the
right to the patent according to Sec.28.
(i)
an evident abuse in relation to the applicant or his legal
predecessor - e.g. the invention was derived from the applicant and
disclosed against his wish; or
8.2
An essential condition in all instances is that the disclosure in
point must have taken place not earlier than twelve months preceding the
filing date or the priority date of the application.
8.3 Regarding
the cases addressed in Sec.25.1(a) and (c) , the disclosure might be
made in a published document or at a conference or in any other way.
8.4 Regarding
the cases addressed in Sec.25.1(b), they might occur whenever a
patent office publishes an application by mistake (e.g. after the
application has been explicitly been withdrawn, or publication before the
date foreSeen by the law), or for example,
when a person B who has been told of A's invention in confidence, applies
for a patent for this invention. If so, the disclosure resulting from the
publication of B's application will not prejudice A's rights provided that
A has already made an application, or applies within six months of such
publication. In any event, having regard to Sec.67, B may not be entitled
to proceed with his application (See VI, 9.7 to 9.11).
|
Sec.26
Sec.24 R.204(a)(b) R.206(b)
Sec.24 2nd
Sentence
Sec.21 1st
Sentence |
9. Inventive step
9.1
"An invention involves an inventive step if, having regard to
the prior art, it is not obvious to a person skilled in the art at the
time of the filing date or priority date of the application claiming the
invention”. Novelty and inventive step are different criteria. Novelty
exists if there is any difference between the claimed invention and the
known art. The question - Is there inventive step? - only arises if there
is novelty.
9.2
The "prior art" for the purposes of considering inventive
step is as defined in Sec.24.1 (See IV, 5 here above);
it does not include later published Philippine patent, utility model or
industrial design applications as referred to in Sec.24.2.
9.3
Thus the question to consider, in relation to any claim defining
the invention, is whether at the priority date of that claim, having
regard to the art known at the time, it would have been obvious to the
person skilled in the art to arrive at something falling within the terms
of the claim. If so, the claim is bad for lack of inventive step. The term
"obvious" means that which does not go beyond the normal
progress of technology but merely follows plainly or logically from the
prior art, i.e. something which does not involve the exercise of any skill
or ability beyond that to be expected of the person skilled in the art. In
considering inventive step, as distinct from novelty (See IV, 7.3 here
above), it is fair to construe any published document in the light of
subsequent knowledge and to have regard to all the knowledge generally
available to the person skilled in the art at the filing or priority date
of the claim.
9.3a
The invention claimed must normally be considered as a whole. Thus
it is not correct as a general rule, in the case of a combination claim,
to argue that the separate features of the combination taken by themselves
are known or obvious and that "therefore" the whole
subject-matter claimed is obvious. The only exception to this rule is
where there is no functional relationship between the features of the
combination i.e.
where
the claim is merely for a juxtaposition of features and not a true
combination (See the example at 2.1 of the Annex 1 to this Chapter).
9.4
While the claim should in each case be directed to technical
features (and not, for example, merely to an idea), in order to assess
whether an inventive step is present it is important for the examiner to
bear in mind that there are various ways in which the skilled person may
arrive at an invention. An invention may, for example, be based on the
following:
(i) The
formulation of an idea or of a problem to be solved (the solutionbeing obvious once the problem is
clearly stated).
Example: the problem of indicating to the driver of a
motor vehicle at night the line of the road ahead by using the light from
the vehicle itself. As soon as the problem is stated in this form the
technical solution, viz. the provision of reflective markings along the
road surface, appears simple and obvious.
(ii) The devising
of a solution to a known problem.
Example: the problem of permanently marking farm animals
such as cows without causing pain to the animals or damage to the hide has
existed since farming began. The solution ("freeze-branding")
consists in applying the discovery that the hide can be permanently
de-pigmented by freezing.
(iii) The arrival
at an insight into the cause of an observed phenomenon (the practical use
of this phenomenon then being obvious).
Example: the agreeable flavour of butter is found to be
caused by minute quantities of a particular compound. As soon as this
insight has been arrived at, the technical application comprising adding
this compound to margarine is immediately obvious.
Many
inventions are of course based on a combination of the above possibilities
- e.g. the arrival at an insight and the technical application of that
insight may both involve the use of the inventive faculty.
9.5
In identifying the contribution any particular invention makes to
the art in order to determine whether there is an inventive step, account
should be taken first of what the applicant himself acknowledges in his
description and claims to be known. Any such acknowledgment of known art
should be regarded by the examiner as being correct unless the applicant
states he has made a mistake. However, the further prior art contained in
the search report may put the invention in an entirely different
perspective from that apparent from reading the applicant's specification
by itself (and indeed this cited prior art may cause the applicant
voluntarilyto
amend his claims to redefine his invention before his application comes up
for examination). In order to reach a final conclusion as to whether the
subject-matter of any claim includes an inventive step it is necessary to
determine the difference between the subject-matter of that claim and the
prior art and, in considering this matter, the examiner should not proceed
solely from the point of view suggested by the form of claim (prior art
plus characterising portion - See III, 2).
Considering
the definition of an invention as given in Sec.21, when assessing
inventive step the examiner will normally apply the following “problem and solution approach”:
In
the problem and solution approach there are three main stages:
1.
determining
the closest prior art,
2.
establishing
the technical problem to be solved, and
3. considering
whether or not the claimed invention, starting from the closest prior art
and the technical problem, would have been obvious to the skilled person.
In
the first stage, the closest
prior art must be determined. The closest prior art is that combination of
features derivable from one single reference that provides the best basis
for considering the question of obviousness. The closest prior art may be,
for example:
(i)
a known
combination in the technical field concerned that discloses technical
effects, purpose or intended use, most similar to the claimed invention or
(ii)
that
combination which has the greatest number of technical features in common
with the invention and capable of performing the function of the
invention.
In
the second stage, one
establishes in an objective way the technical problem to be solved. To do
this, one studies the application (or the patent), the closest prior art
and the difference in terms of technical features (either structural or
functional) between the claimed invention and the closest prior art and
then formulates the technical problem. In this context
the technical problem means the aim and task of modifying or
adapting the closest prior art to provide the technical effects that the
invention provides over the closest prior art.
The
technical problem derived in this way may not be what the application
presents as "the problem". The latter may require to be
reformulated, since the objective technical problem is based on
objectively established facts,
in particular appearing in the prior art revealed in the course of the
proceedings, which may be different from the prior art of which the
applicant was actually aware at the time the application was filed.
The
extent to which such reformulation of the technical problem is possible
has to be assessed on the merits of each particular case. For instance,
any effect provided by the invention may be used as a basis for the
reformulation of the technical problem, as long as said effect is
derivable from the application as filed. It may also be possible to rely
on new effects submitted subsequently during the proceedings by the
applicant, provided that the skilled person would recognize these effects
as implied by or related to the technical problem initially suggested.
The
expression “technical problem” should be interpreted broadly; it does
not necessarily imply that the solution is a technical improvement over
the prior art. Thus the problem could be simply to Seek an alternative to
a known device or process providing the same or similar effects or which
is more cost-effective.
Sometimes
the technical features of a claim provide more than one technical effect,
so one can speak of the technical problem as having more than one part or
aspect, each corresponding to one of the technical effects. In such cases,
each part or aspect generally has to be considered in turn.
In
the third stage, the question
to be answered is whether there is any teaching in the prior art as a
whole that would (not simply could, but would) prompt the skilled person,
faced with the technical problem, to modify or adapt the closest prior art
while taking account of that teaching, thus arriving at something falling
within the terms of the claims, and thus achieving what the invention
achieves (See IV, 9.3 here above).
9.5a
If an independent claim is new and non-obvious, there is no need to
investigate the obviousness or non-obviousness of any claims dependent
thereon, except in situations where the priority claim for the
subject-matter of the dependent claim has to be checked because of
intermediate documents (See e.g. V, 2.6.3). Similarly, if a claim to a
product is new and non-obvious there is no need to investigate the
obviousness of any claims for a process which inevitably results in the
manufacture of that product or any claims for a use of that product. In
particular, analogy processes are patentable insofar as they provide a
novel and inventive product.
9.6
The “person skilled in the art” should be presumed to be an
ordinary practitioner aware of what was common general knowledge in the
art at the relevant date. He should also be presumed to have had access to
everything belonging to the "prior art", in particular the
documents cited in the search report, and to have had at his disposal the
normal means and capacity for routine work and experimentation.
If
the problem prompts the person skilled in the art to Seek its solution in
another technical field, the specialist in that field is the person
qualified to solve the problem. The assessment of whether the solution
involves an inventive step should therefore
be based on that specialist's knowledge and ability. There may be
instances where it is more appropriate to think in terms of a group of
persons, e.g. a research or production team, than a single person. This
may apply e.g. in certain advanced technologies such as computers or
telephone systems and in highly specialised processes such as the
commercial production of integrated circuits or of complex chemical
substances.
9.7
In considering whether there is inventive step (as distinct from
novelty (See IV, 7 here above), it is permissible to combine together the
disclosures of two or more documents or parts of documents, different
parts of the same document or other pieces of prior art, but only where
such combination would have been obvious to the person skilled in the art
at the filing or priority date of the claim under examination. In
determining whether it would be obvious to combine two or more distinct
disclosures, the examiner should have regard to the following:
(i)
Whether the
content of the documents is such as to make it likely or unlikely that the
person skilled in the art, when concerned with the problem solved by the
invention, would combine them – for example, if two disclosures
considered as a whole could not in practice be readily combined because of
inherent incompatibility in disclosed features essential to the invention,
the combining of these disclosures should not normally be regarded as
obvious.
(ii) Whether the
documents come from similar, neighbouring or remote technical fields.
(iii) The
combining of two or more parts of the same document would be obvious if
there is a reasonable basis for the skilled person to associate these
parts with one another. It would normally be obvious to combine with a
prior art document a well-known textbook or standard dictionary; this is
only a special case of the general proposition that it is obvious to
combine the teaching of one or more documents with the common general
knowledge in the art. It would, generally speaking, also be obvious to
combine two documents one of which contains a clear and unmistakable
reference to the other (for references which are considered an integral
part of the disclosure, See 6.1
and 7.1 here above. In determining whether it is permissible to combine a
document with an item of prior art made public in some other way, e.g. by
use, similar considerations apply.
9.8 To this chapter ("Guidance for the assessment of
inventive step"), as well as Chapter VII (parts VII, 1 and VII, 5.4)
give examples of circumstances where an invention should be regarded as
obvious or where it involves an inventive step. It is to be stressed that
these examples are only guides and that the applicable principle in each
case is "was it obvious to a person skilled in the art?"
Examiners should avoid attempts to fit a particular case into one of these
examples where the latter is not clearly applicable. Also, the list is not
exhaustive.
9.9
It should be remembered that an invention which at first sight
appears obvious might in fact involve an inventive step. Once a new idea
has been formulated it can often be shown theoretically how it might be
arrived at, starting from something known, by a series of apparently easy
steps. The examiner should be wary of “ex post facto” analysis of this
kind. He should always bear in mind that the documents produced in the
search have, of necessity, been obtained with foreknowledge of what matter
constitutes the alleged invention. In all cases he should attempt to
visualise the overall prior art confronting the skilled man before the
applicant's contribution and he should Seek to make a "real
life" assessment of this and other relevant factors. He should take
into account all that is known concerning the background of the invention
and give fair weight to relevant arguments
or evidence submitted by the applicant. If, for example, an invention is
shown to be of considerable technical value, and particularly if it
provides a technical advantage which is new and surprising, and this can
convincingly be related to one or more of the features included in the
claim defining the invention, the examiner should be hesitant in pursuing
an objection that such a claim lacks inventive step. The same applies
where the invention solves a technical problem which workers in the art
have been attempting to solve for a long time, or otherwise fulfils a
long-felt need. Commercial success alone is not to be regarded as
indicative of inventive step, but evidence of immediate commercial success
when coupled with evidence of a long-felt want is of relevance provided
the examiner is satisfied that the success derives from the technical
features of the invention and not from other influences (e.g. selling
techniques or advertising).
9.10
The relevant arguments and evidence to be considered by the
examiner for assessing inventive step may be taken either from the
originally filed patent application, or be submitted by the applicant
during the subsequent substantive examination proceedings (See IV-9.5 here
above and VI, 5.7, 5.7a, 5.7c and 5.7d.
Care
must be taken, however, whenever new effects in support of inventive step
are referred to. Such new effects may only be taken into account if they
are implied by or at least related to the technical problem initially
suggested in the originally filed application. Otherwise they have to be
considered as corresponding to another invention that was not originally
disclosed.
Example
of such a new effect:
The
invention as filed relates to a pharmaceutical composition having a
specific activity. At first sight, having regard to the relevant prior
art, it would appear that there is a lack of inventive step. Subsequently
the applicant submits new evidence which shows that the claimed
composition exhibits an unexpected advantage in terms of low toxicity. In
this case it is allowable to reformulate the technical problem by
including the aspect of toxicity, since pharmaceutical activity and
toxicity are related in the sense that the skilled person would always
contemplate the two aspects together.
The
reformulation of the technical problem may or may not give rise to an
amendment, and subsequent insertion, of the statement of the technical
problem in the description. Any such amendment is only allowable if it
satisfies the conditions listed in VI, 5.7c. In the above example of a
pharmaceutical composition, neither the reformulated problem nor the
information on toxicity could be introduced into the description without
infringing the proviso of Sec.49. |
ANNEX 1 to CHAPTER IV, 9
Guidance for the assessment of inventive step
1. Application of known measures?
1.1 Inventions
involving the application of known measures in an obvious way and in
respect of which an inventive step is therefore to be ruled out:
(i)
The teaching of a prior document is incomplete and at least one of the
possible ways of "filling the gap" which would naturally or readily
occur to the skilled person results in the invention.
Example: The invention relates
to a building structure made from aluminium. A prior document discloses
the same structure and says that it is of light-weight material but
fails to mention the use of aluminium.
(ii)
The invention differs from the known art merely in the use of
well-known equivalents (mechanical, electrical or chemical).
Example: The invention relates
to a pump which differs from a known pump solely in that its motive
power is provided by a hydraulic motor instead of an electric motor.
(iii)
The invention consists merely in a new use of a well-known material
employing the known properties of that material.
Example: Washing composition
containing as detergent a known compound having the known property of
lowering the surface tension of water, this property being known to be
an essential one for detergents.
(iv)
The invention consists in the substitution in a known device of a
recently developed material whose properties make it plainly suitable
for that use ("analogous substitution").
Example: An electric cable
comprises a polyethylene sheath bonded to a metallic shield by an
adhesive. The invention lies in the use of a particularly newly
developed adhesive known to be suitable for polymer-metal bonding.
(v)
The invention consists merely in the use of a known technique in a
closely analogous situation ("analogous use").
Example: The invention resides
in the application of a pulse control technique to the electric motor
driving the auxiliary mechanisms of an industrial truck, such as a
fork-lift truck, the use of this technique to control the
electric propulsion motor of the truck being already known.
1.2 Inventions
involving the application of known measures in a non-obvious way and in
respect of which an inventive step is therefore to be recognised:
(i)
A known working method or means when used for a different purpose
involves a new, surprising effect.
Example: It is known that high
frequency power can be used in inductive butt-welding. It should
therefore be obvious that high-frequency power could also be used in
conductive butt welding with similar effect; an inventive step would
exist in this case, however, if high-frequency power were used for the
continuous conductive butt welding of coiled strip but without removing
scale (such scale removal being on the face of it necessary in order to
avoid arcing between the welding contact and the strip). The unexpected
additional effect is that scale removal is found to be unnecessary
because at high frequency the current is supplied in a predominantly
capacitive manner via the scale which forms a dielectric.
(ii)
A new use of a known device or material involves overcoming technical
difficulties not resolvable by routine techniques.
Example: The invention relates
to a device for supporting and controlling the rise and fall of gas
holders, enabling the previously employed external guiding framework to
be dispensed with. A similar device was known for supporting floating
docks or pontoons but practical difficulties not encountered in the
known applications needed to be overcome in applying the device to a
gas holder.
2. Obvious combination of features?
2.1 Obvious and consequently non-inventive combination of features:
The invention consists merely
in the juxtaposition or association of known devices or processes
functioning in their normal way and not producing any non-obvious
working inter-relationship.
Example: Machine for producing sausages consists of a known mincing machine and a known filling machine disposed side by side.
2.2 Not obvious and consequently inventive combination of features:
The combined features mutually
support each other in their effects to such an extent that a new
technical result is achieved. It is irrelevant whether each individual
feature is fully or partly known by itself.
Example: A mixture of
medicines consists of a painkiller (analgesic) and a tranquiliser
(sedative). It was found that through the addition of the tranquiliser,
which intrinsically appeared to have no pain-killing effect, the
analgesic effect of the pain-killer was intensified in a way which
could not have been predicted from the known properties of the active
substances.
3. Obvious selection?
3.1 Obvious and consequently non-inventive selection among a number of known possibilities:
(i) The invention consists merely in choosing from a number of equally likely alternatives.
Example: The invention relates
to a known chemical process in which it is known to supply heat
electrically to the reaction mixture. There are a number of well-known
alternative ways of so supplying the heat, and the invention resides
merely in the choice of one alternative.
(ii)
The invention resides in the choice of particular dimensions,
temperature ranges or other parameters from a limited range of
possibilities, and it is clear that these parameters could be arrived
at by routine trial and error or by the application of normal design
procedures.
Example: The invention relates
to a process for carrying out a known reaction and is characterised by
a specified rate of flow of an inert gas. The prescribed rates are
merely those which would necessarily be arrived at by the skilled
practitioner.
(iii)
The invention can be arrived at merely by a simple extrapolation in a
straightforward way from the known art.
Example: The invention is
characterised by the use of a specified minimum content of a substance
X in a preparation Y in order to improve its thermal stability, and
this characterising feature can be derived merely by
extrapolation on a straight line graph, obtainable from the known art,
relating thermal stability to the content of substance X.
(iv)
The invention consists merely in selecting particular chemical
compounds or compositions (including alloys) from a broad field.
Example: The prior art
includes disclosure of a chemical compound characterised by a specified
structure including a substituent group designated "R". This
substituent "R" is defined so as to embrace entire ranges of
broadly-defined radical groups such as all alkyl or aryl radicals
either unsubstituted or substituted by halogen and/or hydroxy, although
for practical reasons only a very small number of specific examples are
given. The invention consists in the selection of a particular radical
or particular group of radicals from amongst those referred to, as the
substituent "R" (the selected radical or group of radicals not being
specifically disclosed in the prior art document since the question
would then be one of lack of novelty rather than obviousness). The
resulting compounds
(a) are not
described as having, nor shown to possess, any advantageous properties
not possessed by the prior art examples; or
(b) are described
as possessing advantageous properties compared with the compounds
specifically referred to in the prior art but these properties are ones
which the person skilled in the art would expect such compounds
to possess, so that he is likely to be led to make this
selection.
3.2 Not obvious and consequently inventive selection among a number of known possibilities:
(i)
The invention involves special selection in a process of particular
operating conditions (e.g. temperature and pressure) within a known
range, such selection producing unexpected effects in the operation of
the process or the properties of the resulting product.
Example: In a process where
substance A and substance B are transformed at high temperature into
substance C, it was known that there is in general a constantly
increased yield of substance C as the temperature increases in the
range between 50 and 130 C. It is now found that in the
temperature range from 63 to 65 C, which previously had not been
explored, the yield of substance C was considerably higher than
expected.
(ii) The
invention consists in selecting particular chemical compounds or
compositions (including alloys) from a broad field, such compounds or
compositions having unexpected advantages.
Example: In the example of a
substituted chemical compound given at (iv) under 3.2 above, the
invention again resides in the selection of the substituent radical "R"
from the total field of possibilities defined in the prior disclosure.
In this case, however, not only does the selection embrace a particular
area of the possible field, and result in compounds that can be shown
to possess advantageous properties (see IV, 9.10 and VI, 5.7a) but
there are no indications which would lead the person skilled in the art
to this particular selection rather than any other in order to achieve
the advantageous properties.
4. Overcoming a technical prejudice?
As a general rule, there is an
inventive step if the prior art leads the person skilled in the art
away from the procedure proposed by the invention. This applies in
particular when the skilled person would not even consider carrying out
experiments to determine whether these were alternatives to the known
way of overcoming a real or imagined technical obstacle.
Example: Drinks containing
carbon dioxide are, after being sterilised, bottled while hot in
sterilised bottles. The general opinion is that immediately after
withdrawal of the bottle from the filling device the bottled drink must
be automatically shielded from the outside air so as to prevent the
bottled drink from spurting out. A process involving the same steps but
in which no precautions are taken to shield the drink from the outside
air (because none are in fact necessary) would therefore be inventive.
5. Further examples
Further examples concerning the assessment of inventive step can be
found in Chapter VII, in particular parts VII, 1 (The problem and
solution approach) and VII, 5.4 (Chemical problems, inventive step).
ANNEX 2 to CHAPTER IV, 9
(CONCERNING INVENTIVE STEP)
1. The Problem and Solution Approach
The biggest danger in assessing inventive step is the use of
subjectivity and hindsight on the part of an examiner. The examiner
doing the search and the substantive examiner, after reading a patent
application, know the solution to a technical problem and, as everyone
knows, once you know the answer, the problem doesn't seem that
difficult after all. It is important, therefore, not to use hindsight
(or ex-post facto analysis) in assessing an invention. It is equally
important not to use criteria such as "brilliant", "simple",
"revolutionary", etc. in evaluating an invention, since these are
subjective criteria. These dangers can be avoided by the use of the
problem and solution approach, whose use allows an objective analysis
of an invention.
In the problem and solution approach we first take a step backwards
from the invention to the closest prior art and then, on the basis of a
comparison of this prior art with the invention, a so called "objective
problem" is formulated. Finally, the prior art is searched for
indications as to whether a solution to this problem was available and
would have been used. chanroblesvirtualawlibrary
This approach avoids the risk of hindsight. Moreover, it gives results
that are consistent and transparent since it relies more on objective
criteria than subjective judgement. chanroblesvirtualawlibrary
The basis for this approach is that every invention must be based on a
technical problem and a technical solution. Before the method is
explained some concepts are
clarified. chanroblesvirtualawlibrary
Technical features: Structural (concrete) or functional (performance)
elements necessary to produce the technical effects of the
invention. chanroblesvirtualawlibrary
Examples: Structural elements could be: a transistor, a chemical
compound, a vessel for liquids, the structure of a molecule. etc.
Functional elements could be: a step in a procedure, elements
identified as "amplifying means", "a solvent", "heat conducting means",
etc.
Technical effects: Set of positive or negative results produced by
technical features of an invention. Technical effects usually relate to
the purpose or intended use of the
invention. chanroblesvirtualawlibrary
Examples: Faster/slower performance, lighter, stronger, more acidic, more efficient, etc. chanroblesvirtualawlibrary
Technical problem: The task or aim of modifying or adapting the closest
prior art to provide the technical effect that the invention provides.
The invention: By this we mean the combination of all the technical
features as they are represented in a claim and their associated
technical effects. chanroblesvirtualawlibrary
Prior art or State of the art: This means all the technical information
that has already been made available to the public before the applicant
applied for the patent. chanroblesvirtualawlibrary
Differences: By this we mean those technical features of a claim which are not found in a particular item of prior art.
Closest prior art: is that known combination of features that provides
the strongest basis for an obviousness objection. In practice, this
will generally be the item (usually a document) in the technical field
concerned, disclosing technical effects, purpose or intended use, most
similar to the invention. It should be noted that the closest prior art
may well be different for considering the novelty and the inventive
step of the same claim. The reason for this is that for novelty
consideration the document having the most features of a claim (call
this document D1) is most relevant, whereas for inventive step the
technical effects of the features also have to be considered. D1 may
not disclose the technical effects of the invention, in which case
another document D2 would be the closest for inventive step purposes if
it disclosed the technical effects. chanroblesvirtualawlibrary
Examples: chanroblesvirtualawlibrary
For a process invention, the closest prior art is usually a similar process.
For a method of use invention, the closest prior art is usually a
disclosure of a similar use of the same product, or the same use of a
structurally similar product. chanroblesvirtualawlibrary
For a product invention, the closest prior art is usually another
product having the same intended use or purpose. This product will
normally also have the greatest number of technical features in common
with the invention. chanroblesvirtualawlibrary
For example: Suppose that the invention is concerned with an
improvement to a table. The closest prior art will normally be another
table having a comparable use. Most likely it will be the table having
the greatest number of structural elements in common with the
invention. chanroblesvirtualawlibrary
In chemical inventions, the purpose or intended use of a product is
often less related to similarities in structure than is the case in
other technical fields. This is because the structurally closest prior
art might not provide similar effects; rather, an alteration of the
chemical structure of a compound might change the possible use of the
product entirely. Therefore, the closest prior art for a chemical
product is usually the item providing effects close to or the same as
the effects provided by the
invention. chanroblesvirtualawlibrary
For example: A compound used as a herbicide, when altered, might no
longer kill plants; rather, it might kill insects instead, so it could
be used as an insecticide. The prior art selected as being the
"closest" would thus be an insecticide. The herbicide, although
structurally the closest, would not be considered as the closest prior
art; in fact, it might not even be considered as relating to the same
technical field at all.
Person skilled in the art or Skilled person: is a fictional person
taken to have available all the prior art and to be able to understand
it regardless of which language it is in, and all the common general
knowledge of the art in question, but to have no inventive ability. In
some advanced fields it may be appropriate to consider what a team of
workers would know. For example, in the field of rockets, a team
consisting of ballistic experts, computer experts, rocket fuel experts,
etc. would be "the skilled person". At the same time the skilled person
has no imagination to be able to do inventive activity (see also 9.9
above).
Common general knowledge: what the normal skilled worker in that art
would know, together with what would be found in standard
textbooks. chanroblesvirtualawlibrary
By an Indication we mean here anything that would (not simply could,
but would) prompt the skilled person to amend, adapt or modify a
product or procedure, or combine the teaching of two items of prior
art, with the expectation of a desired result. As noted earlier, the
skilled person's general knowledge would sometimes provide the
incentive to do something not described specifically in a prior art
document. chanroblesvirtualawlibrary
Ex-post-facto analysis or hindsight: Once the solution to a problem is
known the problem does not appear that difficult. Thus, looking back
once the solution is known and creating a sequence of steps backward
towards the prior art is not a recommended way of examining for
inventive step. A proper way is to start from the prior art and to see
which way the skilled person would go, if at all.
2. The four steps used in the problem and solution approach
Step 1: Determining the closest prior art chanroblesvirtualawlibrary
Study the application until you understand the technical features of
the invention and their associated technical effects, and the overall
effect, purpose or intended use of the
invention. chanroblesvirtualawlibrary
Now consider each item of prior art individually. chanroblesvirtualawlibrary
For each item of prior art, identify the technical features and
technical effects that are common to the
invention. chanroblesvirtualawlibrary
Identify the differences between the invention and each item of prior
art, and any technical effects that the differences
achieve. chanroblesvirtualawlibrary
Decide which item represents the closest prior art. chanroblesvirtualawlibrary
After this sequence of steps you will have two documents, one (the
application) setting out the invention, and the other the prior art
that most closely resembles the invention. In the next stage of the
procedure, you will compare the invention with the closest prior art
and determine the technical problem in an objective manner.
If, occasionally, you find it difficult to decide which of two
documents represents the closest prior art, you should carry out the
following procedure for each of these documents.
Step 2: Evaluating the difference between the closest prior art and
The next step is to determine the difference between the claimed
invention and the closest prior art. The difference will be that
structural or functional feature or features or method steps that are
in the claim but not in the closest prior art, and is called the
distinguishing feature.
Step 3: Formulating the technical problem
Based on this difference, a problem is formulated. This in turn is
based on the technical effect that the distinguishing feature(s)
provides. Usually, the effect of this feature is given in the
application itself, or it may be obvious from its description. For
example, a heat conducting body adjacent an electronic component has
the effect of conducting heat away from the component. The
corresponding problem may be formulated as "cooling the electronic
component".
In the description, the applicant often identifies the problem he faced
when he made the invention or when he drafted the application. However,
the applicant might not have had access to all the prior art,
particularly the closest prior art, or it might not have been correctly
appreciated. So the problem he faced might have been completely or
partly solved already, unknown to him, and what he presents as the
problem he solved might well have been solved already in the documents
found in the search report. Hence there is the need to evaluate the
actual technical problem solved by the applicant. As a matter of
terminology, the problem originally identified by the applicant has
sometimes been called "the subjective problem". After the analysis and,
where necessary, the reformulation of the problem as set out above, the
technical problem that emerges is sometimes called "the objective
problem". chanroblesvirtualawlibrary
The correct formulation of the technical problem lies at the heart of
the problem/solution approach. If it is not correctly formulated,
difficulties will arise in attempting to arrive at the correct
evaluation of the inventive step. If the technical problem is
formulated too specifically, it could include elements of the solution,
and the invention might, unjustifiably, appear to be obvious. If, on
the other hand, the technical problem is formulated too broadly, it
could be that you will find a whole range of alternative solutions in
the prior art. This might require extensive checking of each
alternative.
Step 4: Is the invention obvious? chanroblesvirtualawlibrary
Given the objective technical problem and the prior art, the next step
is to determine whether there are any indications in the prior art that
would lead the skilled person to combine prior art documents to achieve
the technical effect that the invention achieves, or to put it
differently, to solve the same problem. chanroblesvirtualawlibrary
Example i): The statement "this numerical keypad could be used on any
electronic equipment where a series of numbers are to be entered
manually" would be an indication of the possibility of replacing the
traditional telephone dialling ring by that numerical keypad. chanroblesvirtualawlibrary
Example ii): Readily recognisable (technical drawbacks) often indicate
to the skilled person that certain technical effects require an
improvement, e.g. "too slow, too heavy, too complicated, not stable",
"inefficient", etc. chanroblesvirtualawlibrary
Example iii): For commercial reasons or due to technical drawbacks, the
skilled person would, in some cases, be prompted to seek an alternative
way of providing the same effects as the closest prior art
provides. chanroblesvirtualawlibrary
If there are no indications in the prior art that would lead the
skilled person, faced with the technical problem and the prior art, to
consider combining the solution with the closest prior art to achieve
what the invention achieves, then the invention is not obvious, because
there is nothing that would lead the skilled person from the closest
prior art to the invention. chanroblesvirtualawlibrary
If there are such indications, the invention does not involve an
inventive step because the skilled person, faced with the technical
problem and the prior art, would consider combining the solution with
the closest prior art and arrive at the subject matter of the claim.
Where the claim is for a combination of technical features which are
functionally related to one another (which is usually the case), the
obviousness of the whole combination must be established. Where however
the claim is for a juxtaposition of functionally independent parts, it
is legitimate to apply the problem solution approach to each part
separately; if each part is thereby shown to be obvious, the whole
claim is
obvious.
chanroblesvirtualawlibrary
Note that the word "would" has been emphasised above. This is because
it is clear that anything in the world could be combined with anything
else, but it is unfair to the applicant to show that this is possible.
Instead, it is necessary to demonstrate that, starting from the closest
prior art, the skilled person inevitably would be led to combine it
with another prior art, in order to build up a logical chain of
reasoning to show lack of inventive step without using hindsight.
3. The sub-tests
Once the technical problem has been formulated using the problem and
solution approach, you have to evaluate whether or not the invention as
set out in the claim, is obvious. Deciding that involves answering the
question: "What would a person skilled in the art do, when faced with
that technical problem and having regard to the state of the art?".
chanroblesvirtualawlibrary
It was also mentioned here above that you start from the closest prior
art and then weigh up the rest of the prior art to determine whether or
not there are any indications that would have led a skilled person from
the closest prior art to the invention. In doing this factors are used
that are referred to as secondary considerations or sub tests. Sub
tests provide indicators or pointers (also called indicia) that help
the evaluator to arrive at a decision. chanroblesvirtualawlibrary
Despite the usefulness of sub tests, a technical evaluation of the
invention remains of primary importance, particularly during the
examination procedure. Answers to some sub tests will seldom be
available at such an early stage of the procedure; the marketing of
products for example is unlikely to have started and the public
response will be unknown. chanroblesvirtualawlibrary
Generally, it will be the "negative" sub tests that will be quoted by
the examiner; applicants may reply using "positive" sub tests when
arguing against the examiner's opinion. The examiner thus needs to have
a thorough knowledge of the sub tests, as well as their uses and
limitations. chanroblesvirtualawlibrary
There are positive sub tests, i.e. those that indicate the presence of
inventive step, and negative sub tests, which point to lack of
inventive step. chanroblesvirtualawlibrary
3.1 Sub-tests that usually provide negative
pointers
chanroblesvirtualawlibrary
(a) Aggregation or collocation chanroblesvirtualawlibrary
The invention consists merely in the juxtaposition (bringing side by
side) of known devices or processes, each functioning in its normal way
without interacting with the other elements, and not producing any
unexpected technical effect. chanroblesvirtualawlibrary
Example: Machine for producing sausages consists of a known mincing machine and a known filling machine disposed side by side.
(b) Simple and straightforward extrapolation from known facts
To extrapolate from already known measures to arrive at the invention is a sign for obviousness.
Example 1: The invention is characterised by the use of a specified
minimum content of a substance X in a preparation Y in order to improve
its thermal stability, and this characterising feature can be derived
merely by extrapolation on a straight line graph, obtainable from the
known art, relating thermal stability to the content of substance X.
Example 2: Care should be taken with extrapolation however, as this
example shows. A synthetic material has been known to have very good
static load-bearing properties. The invention consists of making
railway sleepers of this material, which are subject to severe dynamic
loading. It would be unfair to say that it would be obvious to replace
known sleeper material by the new one since the dynamic load-bearing
properties are surprising. chanroblesvirtualawlibrary
(c) A change of size, form or proportion chanroblesvirtualawlibrary
The choice of a particular dimension from a limited range of
possibilities and resulting from routine trial and error or arrived at
by the application of normal design procedure points towards
obviousness. chanroblesvirtualawlibrary
Example: The invention relates to a process for carrying out a known
reaction and is characterised by a specified rate of flow of an inert
gas. The prescribed rates are merely those which would necessarily be
arrived at by the skilled practitioner.
(d) An exchange of material chanroblesvirtualawlibrary
The substitution of a newly developed material for one that had been
used in a known product, where the properties of the new material
indicate that it is likely to be suitable, is a pointer towards
obviousness.
Example 1: Washing composition containing as detergent a known compound
having the known property of lowering the surface tension of water,
this property being known to be an essential one for detergents.
Example 2: A new rubbery material which is very wear resistant comes
onto the market and someone applies for a patent for a motor tyre made
from this material. This use would be obvious considering the
properties of the new material.
(e) Application of a technique known per se chanroblesvirtualawlibrary
In such a case it has to be established whether success could
reasonably have been expected. This is usually the case when the known
technique is applied in an analogous situation. chanroblesvirtualawlibrary
Example: The invention resides in the application of a pulse control
technique to the electric motor driving the auxiliary mechanisms of an
industrial truck, such as a fork-lift truck, the use of this technique
to control the electric propulsion motor of the truck being already
known.
(f) The use of well‑known technical equivalents
One should consider whether the use of an equivalent involved
particular technical difficulties. If this is not the case, then the
test points towards obviousness.
Example: The invention relates to a pump which differs from a known
pump solely in that its motive power is provided by a hydraulic motor
instead of an electric motor.
(g) Filling a gap in the state of the art chanroblesvirtualawlibrary
When the teaching of the prior art is obviously incomplete, and
completion thereof would naturally or readily occur to the skilled
person, an inventive step has to be ruled out. chanroblesvirtualawlibrary
Example: The invention relates to a building structure made from
aluminium. A prior document discloses the same structure and says that
it is of light-weight material but fails to mention the use of
aluminium.
(h) Selection from a number of known possibilities without any unexpected technical effect chanroblesvirtualawlibrary
This comes down to merely choosing from a number of equally likely alternatives. chanroblesvirtualawlibrary
Example: The invention relates to a known chemical process in which it
is known to supply heat electrically to the reaction mixture. There are
a number of well-known alternative ways of so supplying the heat, and
the invention resides merely in the choice of one alternative.
3.2 Sub-tests that might provide positive pointers
Technical considerations chanroblesvirtualawlibrary
(i) Overcoming a technical prejudice chanroblesvirtualawlibrary
This is normally a persuasive pointer towards "non‑obviousness". If
there has been disbelief or scepticism by experts towards a particular
line of development and the prior art points away from the proposed
invention, that is taken as strong support for the existence of an
inventive step. However, the applicant must provide evidence to
demonstrate the existence of such a prejudice at the priority date of
the application. A mere allegation that technical prejudice was present
is not sufficient. It must also be shown by the applicant that the
technical prejudice was generally known to the world and not just
perceived by him only.
Example: Drinks containing carbon dioxide are, after being sterilised,
bottled while hot in sterilised bottles. The general opinion is that
immediately after withdrawal of the bottle from the filling device the
bottled drink must be automatically shielded from the outside air so as
to prevent the bottled drink from spurting out. A process involving the
same steps but in which no precautions are taken to shield the drink
from the outside air (because none are in fact necessary) would
therefore be inventive.
(j) The invention overcomes difficulties by
means of a new use of a known process, of a known device or known
material chanroblesvirtualawlibrary
This point is taken as a sign of non‑obviousness if the difficulties are not resolvable by routine techniques. chanroblesvirtualawlibrary
Example: The invention relates to a device for supporting and
controlling the rise and fall of gas holders, enabling the previously
employed external guiding framework to be dispensed with. A similar
device was known for supporting floating docks or pontoons but
practical difficulties not encountered in the known applications needed
to be overcome in applying the device to a gas holder.
(k) Unexpected technical progress or technical advance chanroblesvirtualawlibrary
This point deals with improvements over the prior art which, although a
permanent aim in industry, are not a requirement for patentability, in
particular for inventive step. However, this test may be relevant if a
long period of research or of attempts to make an improvement have
failed to find a better solution. The unexpected technical progress has
to be demonstrated in comparison with the closest prior art. Therefore
it is sometimes necessary for the applicant to support this pointer
with comparative tests. Examples of this pointer are such things as:
increase in performance, greater productivity, cheaper and more
economical production, the simplification of machines or construction
and manufacturing methods.
Example: The invention involves a special selection in a process of
particular operating conditions (e.g. temperature and pressure) within
a known range, such selection producing unexpected effects in the
operation of the process or the properties of the resulting product.
(l) Surprising technical effect chanroblesvirtualawlibrary
An example of such an effect would be when the various elements of the
invention are known individually from different sources in the prior
art, but when combined in the particular way of the invention, produce
a technical effect that goes beyond what would have been expected from
a mere juxtaposition of these known measures (This is sometimes called
synergy). This pointer is generally known as "the combination effect".
It occurs quite frequently in chemical inventions.
Example: A mixture of medicines consists of a painkiller (analgesic)
and a tranquilliser (sedative). It was found that through the addition
of the tranquilliser, which intrinsically appeared to have no
pain-killing effect, the analgesic effect of the pain-killer was
intensified in a way which could not have been predicted from the known
properties of the active substances.
Another occasion where we might speak of a surprising effect would be
when a known method or means is successfully used for an entirely
different purpose. chanroblesvirtualawlibrary
It is known that high frequency power can be used in inductive butt
welding. It should therefore be obvious that high-frequency power could
also be used in conductive butt welding with similar effect; an
inventive step would exist in this case. This would also be the case if
high-frequency power were used for the continuous conductive butt
welding of coiled strip but without removing scale (such scale removal
being on the face of it necessary in order to avoid arcing between the
welding contact and the strip). The unexpected additional effect is
that scale removal is found to be unnecessary because at high frequency
the current is supplied in a predominantly capacitive manner via the
scale which forms a dielectric.
Care must be taken to ensure that all technical effects are indeed
caused by the features of a claim. Often an applicant argues that his
invention provides some effect, but it turns out that the effect is not
provided by the features of the claim, but by some other feature. For
his arguments to be relevant, this other feature must be included in
the claim.
It might be argued that unexpected or surprising effects are subjective
tests since different people react differently to a given result.
However, insofar as the effect can be measured objectively (e.g. a
greater efficiency or yield is produced) and shown to be different from
what one would expect from the prior art, it is not subjective.
(m) Professional recognition or technical esteem chanroblesvirtualawlibrary
The opinion of experts and their admiration of the invention are
pointers towards non obviousness of the invention. Of course, if those
experts are employed by or are related commercially to the applicant,
one should be careful about their opinions. chanroblesvirtualawlibrary
Commercial considerations
(n) Commercial or economic success chanroblesvirtualawlibrary
This pointer is not necessarily based on technical differences between
the invention and the state of the art; it should therefore be treated
with caution. Commercial success can only occur after the invention has
been on the market for a while (usually after the examination of the
application has finished). Thus it cannot have influenced the design of
the invention before the filing date and so cannot normally be used as
an argument for inventive step. Commercial success might be derived
from a number of factors, e.g. first to the market, skilful
positioning, good selling techniques, effective advertising, not to
mention occasional good luck. However, if it can be proved that
commercial success is coupled with another pointer such as the
satisfaction of a long felt want and stems from technical features of
the invention, it should be accepted as being relevant. chanroblesvirtualawlibrary
(o) Licence acquired from the inventor chanroblesvirtualawlibrary
This pointer relates to the concept of commercial success. It suggests
an existing need for the invention and the related commercial interest.
If the rights were acquired by competitors of the inventor, they will
have carefully examined the value of the invention before entering into
any agreement. Usually they will not be distracted by selling
techniques or good advertising. It could be a sign that the competitors
are convinced that they could not win an opposition or an infringement
suit, thus pointing at non obviousness. chanroblesvirtualawlibrary
However, it might also be the cheapest and most convenient way for a
competitor to make money while avoiding trouble, since the cost of
defending an infringement case in court, even against a patent thought
to be invalid, could be greater than the cost of a licence. In other
instances, licences could also be exchanged between competitors. chanroblesvirtualawlibrary
(p) Copying or infringement of the invention by competitors chanroblesvirtualawlibrary
This pointer also relates to the concept of commercial success. The
fact that someone copies an invention, regardless of the risk of an
infringement suit and the possible payment of damages is not convincing
one way or the other. While one could argue that it supports the value
of the invention to a certain extent, one could also argue that it
indicates that the copier is convinced that the patent is not valid,
i.e. there is no inventive step.
(q) Circumvention chanroblesvirtualawlibrary
This concept can also be related to commercial success. The fact that
competitors try to produce a substitute for an invention (i.e. trying
to use the inventive idea in a legal manner) can be taken as
acknowledgement of the attractiveness of the invention and at the same
time recognition of the commercial value of the invention. chanroblesvirtualawlibrary
(r) Parallel applications abroad
Applicants sometimes say that a patent has been granted for the
invention in the US, Europe, or some other country, and imply that it
should similarly be granted in other countries. This argument should be
given some weight and, indeed, it is recommended that "young" patent
offices make use of results from experienced patent offices.
Other considerations
(s) Long existing prior art chanroblesvirtualawlibrary
This concept implies the question "If the invention is obvious, why was
it not done a long time ago?". If the elements of the invention have
been available for a long time and the particular combination that
would result in the invention has not been made, although the result
obtained by the invention is useful, this can be taken as a sign of non
obviousness. However, this pointer is usually given only limited weight
because there may have been no particular need or desire to solve that
problem during that period of time. chanroblesvirtualawlibrary
(t) Overcoming technical difficulties or solving a
technical problem which others have been working on without success
This pointer covers a series of different aspects. We are not talking
here simply about difficulties or problems the inventor himself had to
overcome to achieve his result. The difficulties or problems must have
existed in the technical field concerned and were such that the experts
in this field were not able to overcome them. The length of time during
which the difficulties or problems were known and the efforts made to
remove them are important factors in this context. chanroblesvirtualawlibrary
(u) Satisfaction of a long felt want (the time factor) chanroblesvirtualawlibrary
If a need for a solution to a technical problem existed for a long
time, and the invention immediately satisfies that need, e.g. as
evidenced by immediate commercial success, that suggests that the
solution represented by the invention was not obvious. chanroblesvirtualawlibrary
(v) Failures and unsuccessful attempts chanroblesvirtualawlibrary
This means that others have tried to solve a technical problem and
failed. There is a strong relation with the "long felt want" here in so
far as attempts are usually undertaken only if a need exists. One needs
to consider the nature of the attempts, the number of attempts, the
time span over which they were performed and the skills of those who
failed. chanroblesvirtualawlibrary
(w) Pioneer inventions
A pioneer invention can change the production methods of a whole
industry or create a totally new industry or branch of industry which
did not exist before. In the latter case, there cannot be any doubt
about non obviousness, since there would not be any close prior art
available to compare it with. However, it is often difficult to
recognise the extent of the value of such inventions at the examination
stage. Examples that could be quoted would be: the ball point pen, the
laser (actually the maser came first), xerography. chanroblesvirtualawlibrary
(x) A (large) number of (sequential) steps have
to be taken to move from the closest prior art to the invention
This is considered to be a significant indicator of the presence of
inventiveness; the larger the number of steps, the less likely it is to
be obvious. Also, the larger the number of disclosures that need to be
combined to assemble all the technical features of the claim, the less
likely it is to be obvious to do so. Note that this is a different
criteria to that in (a) above.
(y) Special choice among a multitude of possible solutions (selection inventions)
This pointer is effectively a "lucky invention" which expresses quite
clearly the extent of this concept. If an inventor found the one, or a
few, working solutions amongst a theoretically unlimited number of
unsuccessful ones, this is an indication for non obviousness. This test
for inventive step is similar to the unexpected effect test in (k)
above.
(z) Unexpected additional (bonus) effects
It sometimes happens that, in addition to expected effects, additional,
unexpected effects or advantages occur. The question then arises: can
the presence of these unexpected effects be taken as evidence of non
obviousness in cases where the expected effects are due to routine
development and, for this reason, the invention would normally be
regarded as obvious? In such cases the number of options available to
the skilled person is to be considered. Where the choice is restricted,
the lack of alternatives may create a so called "one way street"
situation, where normal development will lead almost inevitably to the
invention; the invention will then be taken to be obvious in spite of
an unexpected "bonus effect". This situation should be contrasted with
the multiple choice situation such as commonly arises e.g. in
selection. A fanciful example of a one-way-street situation is the
following: A man at a junction of several roads is looking for a bar
and sees a bar along only one of the roads. He goes down this road and
into the bar, and finds a beautiful woman there. In this case the woman
is a bonus effect since the man did not have a choice, he was forced to
go down one road only.
Example 1
Suppose it is known from the prior art that, when one reaches a
particular compound in a series of known chemical compounds, expressed
in terms of the number of carbon atoms, there is a consistently
increasing insecticidal effect as one moves up the series. The next
higher member of the series, if it was not previously known, then lies
in a "one way street". If this member of the series, in addition to
exhibiting the expected enhanced insecticidal effect, proves also to
have the unexpected effect of being selective, i.e. of killing some
insects but not others, it nevertheless remains obvious.
Example 2
A further general case of a one way street could be the replacement of
mechanical automatic control by electronic automatic control. Suppose
the mechanical control system in an automatic gear box for a motor car
is replaced by a microprocessor controlled system, the microprocessor
being able to take account of all factors, i.e. accelerator pedal
position, engine revolutions etc., to select the most appropriate gear.
When the microprocessor system is used it is unexpectedly found that
the tyres of the car exhibit a significantly reduced wear and therefore
a longer life. This effect is a bonus effect, and the invention remains
obvious. |
|
Back
to Top - Back
to Home - Back
to IPR Index
Since
19.07.98 chanroblesvirtualawlibrary
|