definiens: as defined in the Agreement, to Assignee ; and WHEREAS, Assignee desires to acquire all rights, title and interests in and to said Gene Therapy Listed Know - How and any and all patents to be obtained therefor ; NOW, THEREFORE, for good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged by Assignor, Subject to the terms and conditions of the Agreement, Assignor hereby conveys, assigns, transfers and delivers to said Assignee, and its successors and assigns, all rights, title and interests throughout the world in and to the Gene Therapy Listed Know - How in any form or embodiment thereof, including the right to file both U.S. and foreign patent applications therefor, and claim priority under the provisions of any international convention or treaty, as well as all rights, title and interests throughout the world in and to any and all patents or reissues or extensions thereof to be obtained in this or any foreign country upon said Inventions and any divisional, continuation or continuation - in - part thereof or substitute applications therefor in this or any foreign country ; and Assignor hereby authorizes andxequests the issuing authority to issue any and all patents on any such application or applications to Assignee or its successors and assigns