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