definiens: means all of Licensor 's rights in but limited to ( a ) the Existing Patents listed on Schedule 2.17 -A ( Existing Patents ) attached hereto and made a · material part hereof, including any extensions, reissues and reexaminations thereof, and ( b ) any and all additional patents and patent applications and ancillary Intellectual Property Rights identified and listed with the approval of Licensor on Schedule 2.17 -B ( Additional Patents and Patent Applications ) attached hereto and made a material part hereof, including any extensions, reissues and reexaminations thereof . Licensed Patent Technology shall include any and all divisions, renewals, continuations, continuations in part and substitutions related to the patents and patent applications referenced in subsections ( a ) and ( b ) of this Section ; all foreign patent applications corresponding to the foregoing applications ; and all U.S. and foreign patents issuing on any of the foregoing applications, including extensions, reissues, and reexaminations