Code of Federal Regulations > Title 37 > Chapter I > Part 1 - PART 1—RULES OF PRACTICE IN PATENT CASES

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

Subpart A [§ 1.1 - § 1.29] - Subpart A—General Provisions

Subpart B [§ 1.31 - § 1.378] - Subpart B—National Processing Provisions

Subpart C [§ 1.401 - § 1.499] - Subpart C—International Processing Provisions

Subpart D [§ 1.501 - § 1.570] - Subpart D—Ex Parte Reexamination of Patents

Subpart E [§ 1.601 - § 1.625] - Subpart E—Supplemental Examination of Patents

Subpart F [§ 1.701 - § 1.791] - Subpart F—Adjustment and Extension of Patent Term

Subpart G [§ 1.801 - § 1.839] - Subpart G—Biotechnology Invention Disclosures

Subpart H [§ 1.902 - § 1.997] - Subpart H—Inter Partes Reexamination of Patents That Issued From an Original Application Filed in the United States on or After November 29, 1999

Subpart I [§ 1.1001 - § 1.1071] - Subpart I—International Design Application