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Regulations last checked for updates: Jun 15, 2025
Title 37 - Patents, Trademarks, and Copyrights last revised: Jun 10, 2025
All Titles
Title 37
Chapter I
Part 41 - PART 41—PRACTICE BEFORE THE PATENT TRIAL AND APPEAL BOARD
Subpart A [§ 41.1 - § 41.20] - Subpart A—General Provisions
Subpart B [§ 41.30 - § 41.54] - Subpart B—Ex Parte Appeals
Subpart C [§ 41.60 - § 41.81] - Subpart C—Inter Partes Appeals
Subpart D [§ 41.100 - § 41.158] - Subpart D—Contested Cases
Subpart E [§ 41.200 - § 41.208] - Subpart E—Patent Interferences
authority:
35 U.S.C. 2
(b)(2), 3(a)(2)(A), 21, 23, 32, 41, 134, 135, and Public Law 112-29
source:
69 FR 50003, Aug. 12, 2004, unless otherwise noted.
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