definiens: means : ( a ) Licensor ’s rights under all patents, and patentapplications listed on Appendix A, as well as all foreign counterpart patents and patent applications ( including futureforeign counterparts to the patents and patent applications listed in Appendix A or described in and below);(b ) all reissues, reexaminations, renewals, extensions, divisionals, continuations, and continuations - in - part of thepatents and patent applications listed in Appendix A and/or described in below, and any patents which issue onthe foregoing ; ( c ) unless [COMPANY] elects otherwise with respect to a given patent or patent application, all patentapplications that are owned by Licensor or an Affiliate of Licensor during the Term, or to which Licensor or an Affiliateof Licensor otherwise acquires rights during the Term, which are Improvements or enhancements of the patents orpatent applications listed in Appendix A and/or described in ( b ) above ; and ( d ) any know - how or other enablinginformation relating to the use of [ * ] ( or other compounds identified in the patents listed in Appendix A ) in the Field thatis or comes into the possession and control of Licensor or its Affiliates ( other than the Stiefel Data ) during the Term