37 C.F.R. § 2.36 Identification of prior registrations.
Title 37 - Patents, Trademarks, and Copyrights
Prior registrations of the same or similar marks owned by the applicant should be identified in the application.
Title 37: Patents, Trademarks, and Copyrights
PART 2—RULES OF PRACTICE IN TRADEMARK CASES
The Written Application
§ 2.36 Identification of prior registrations.

