CFR › Title 37 › Part 1 › §1.19137 CFR §1.191Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy linkAppeals to the Patent Trial and Appeal Board under 35 U.S.C. 134(a) and (b) are conducted according to part 41 of this title.