37 C.F.R. § 1.64 Person making oath or declaration.
Title 37 - Patents, Trademarks, and Copyrights
(a) The oath or declaration (§1.63), including any supplemental oath or declaration (§1.67), must be made by all of the actual inventors except as provided for in §§1.42, 1.43, 1.47, or §1.67. (b) If the person making the oath or declaration or any supplemental oath or declaration is not the inventor (§§1.42, 1.43, 1.47, or §1.67), the oath or declaration shall state the relationship of the person to the inventor, and, upon information and belief, the facts which the inventor is required to state. If the person signing the oath or declaration is the legal representative of a deceased inventor, the oath or declaration shall also state that the person is a legal representative and the citizenship, residence, and mailing address of the legal representative. [65 FR 54667, Sept. 8, 2000]
Title 37: Patents, Trademarks, and Copyrights
PART 1—RULES OF PRACTICE IN PATENT CASES
Subpart B—National Processing Provisions
Oath or Declaration
§ 1.64 Person making oath or declaration.

