(a)Priority - (1)Order of invention. Parties are presumed to have invented interfering subject matter in the order of the dates of their accorded benefit for each count. If two parties are accorded the benefit of the same earliest date of constructive reduction to practice, then neither party is entitled to a presumption of priority with respect to the other such party. (2)Evidentiary standard. Priority may be proved by a preponderance of the evidence except a party must prove priority by clear and

(a)Effect within Office - (1)Estoppel. A judgment disposes of all issues that were, or by motion could have properly been, raised and decided. A losing party who could have properly moved for relief on an issue, but did not so move, may not take action in the Office after the judgment that is inconsistent with that party's failure to move, except that a losing party shall not be estopped with respect to any contested subject matter for which that party was awarded a favorable judgment. (2)Final disposal

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