definiens: shall mean all patents, patent applications and invention disclosures the subject of which is an invention that is : ( i ) conceived in the course of performing the Research Program during the Research Term and reduced to practice prior to the third ( 3,d ) anniversary of the end of the Research Term jointly by, or under authority of, both Parties ; ( ii ) conceived and reduced to practice jointly by, or under authority of, both Parties after the Effective Date but prior to the third ( 3,d ) anniversary of the endofthe Research Tenn in the course of activities directed to the discovery, research, or development of Collaboration Derivatives ; ( iii ) conceived in the course of performing the Research Program during the Research Tenn and reduced to practice prior to the third ( 3rt ! ) aruriversaryofthe end of the Research Term using Joint Collaboration Know - How, Sunesis Collaboration Know - How or Sunesis Core Technology by or under authority of personnel ofBiogen Idee or any of its Controlled Affiliates ; or ( iv ) conceived and reduced to practice using Joint Collaboration Know - [COMPANY] Idec - Sunesis Col13boraliOfl Agreemenl -4 - How, Sunesis Collaboration Know - How or Sunesis Core Technology by or under authority of personnel ofBiogen Idec or any of its Controlled Affiliates after the Effective Date but prior to the third ( 3'd ) anniversary of the end of the Research Term in the course of activities directed to the discovery, research, or development of Collaboration Derivatives . It is to be understood that Joint Collaboration Patents shall include any divisions, continuations, continuations - in - part, reissues, reexaminations, extensions or other governmental actions which extend any of the patent applications or patents in ( i ), ( ii ), ( iii ) or ( iv ) above, and any substitutions, confirmations, registrations, revalidations or foreign counterparts of any of the foregoing . For clarity, the inventions described in subsections ( iii ) and ( iv ) above are limited to those inventions directed at or comprising compositions of matter that modulate Targets and/or methods of use thereof in modulating Targets . Notwithstanding the foregoing, Joint Collaboration Patents shall in all cases exclude Sunesis Core Technology