(a) PATENT APPLICANT.-An applicant for a patent, any of whose claims has been twice rejected, may appeal from the decision of the primary examiner to the Patent Trial and Appeal Board, having once paid the fee for such appeal. (b) PATENT OWNER.-A patent owner in a reexamination may appeal from the final rejection of any claim by the primary examiner to the Patent Trial and Appeal Board, having once paid the fee for such appeal. 35 U.S.C. § 134 July 19, 1952, ch. 950, 66 Stat. 801; Pub. L. 98-622
(a) Parties to the appeal may file a request for rehearing of the decision within one month of the date of: (1) The original decision of the Board under § 41.77(a) , (2) The original § 41.77(b) decision under the provisions of § 41.77(b)(2) , (3) The expiration of the time for the owner to take action under § 41.77(b)(2) , or (4) The new decision of the Board under § 41.77(f) . (b) (1) The request for rehearing must state with particularity the points believed to have been misapprehended or overlooked
The parties to an appeal to the Board may not appeal to the U.S. Court of Appeals for the Federal Circuit under § 1.983 of this title until all parties' rights to request rehearing have been exhausted, at which time the decision of the Board is final and appealable by any party to the appeal to the Board. 37 C.F.R. §41.81
The provisions herein govern judicial review for Patent Trial and Appeal Board decisions under chapter 13 of title 35, United States Code. Judicial review of decisions arising out of inter partes reexamination proceedings that are requested under 35 U.S.C. 311 , and where available, judicial review of decisions arising out of interferences declared pursuant to 35 U.S.C. 135 continue to be governed by the pertinent regulations in effect on July 1, 2012. 37 C.F.R. §90.1