(a) (1) Appellant may file a single request for rehearing within two months of the date of the original decision of the Board. No request for rehearing from a decision on rehearing will be permitted, unless the rehearing decision so modified the original decision as to become, in effect, a new decision, and the Board states that a second request for rehearing would be permitted. The request for rehearing must state with particularity the points believed to have been misapprehended or overlooked by

(a) The patent owner or third party requester in an inter partes reexamination proceeding who is a party to an appeal to the Patent Trial and Appeal Board and who is dissatisfied with the decision of the Patent Trial and Appeal Board may, subject to § 41.81 , appeal to the U.S. Court of Appeals for the Federal Circuit and may be a party to any appeal thereto taken from a reexamination decision of the Patent Trial and Appeal Board. (b) The appellant must take the following steps in such an appeal:

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