Arnold B. Serenkin (“Serenkin”) appeals from the final decision of the United States Patent and Trademark Office (“PTO”) Board of Patent Appeals and Interferences (“Board”) sustaining the examiner’s rejection of claims 1 to 11 of Reissue Application No. 10/134,550 (“the ’550 reissue application”). Because the Board correctly determined that the error upon which Serenkin bases his reissue application is not correctable error under 35 U.S.C. § 251, we affirm.