definiens: shall mean all patents and patent applications in the Territory owned or controlled by Dynavax or under which Dynavax has a right to practice with the right to extend such right to practice to Triangle which contain claims covering inventions or discoveries reduced to practice, sf·1323842 585107v1 4 actually or constructively, on or after the8anniversary of the expiration of the Research Program the rights to which are reasonably useful for the development, registration, manufacturing, using or selling ofCornpound ISS or the Licensed Products, including any addition, continuation, continuation - in - part or division thereof or any substitute application thereof ; any patent issued with respect to such patent application, any reissue, extension or patent tenn extension of any such patent, and any confumation patent or registration patent or patent of addition based on any such patent ; and any other United States and foreign patent or inventor 's certificate with regard thereto