definiens: shall mean ( a ) those Patent Rights set forth on Exhibit 1.2(a ), the subject of which is an invention : ( i ) conceived in the course of performi ng the Research Program during the Research Term and reduc ed to practice prior to the Effective Date solely b y or under authority of personnel of Biogen Idec or a ny of its controlled Affiliates ; or ( ii ) conceived and reduced to practice solely by or under authority of personnel of Biogen Idec or any of its controlled Affiliates after the Original Agreement Effective D ate but prior to the Effective Date, in the case of either ( i ) or ( ii ) in the course of activities { * } to the Designated Target or to the discovery, research, o r development of PDK Compounds or PDK Products ; and ( b ) all Patent Rights that arise during the Term that claim or cover any Biogen Idec Collaboration K now - How