definiens: means, separately with respect to each Licensed Product in each country, the period commencingon the First Commercial Sale of such Licensed Product in such country ( provided that either ( x ) such LicensedProduct is Covered by a Valid Claim of the [COMPANY] Platform Patent Rights, [COMPANY] Patent Rights, [COMPANY] PatentRights, [COMPANY] Collaboration Patent Rights, [COMPANY] Collaboration Patent Rights or Joint Collaboration Patent Rightsin such country at the time of such First Commercial Sale in such country, or ( y ) the Manufacture of such LicensedProduct is Covered by a Valid Claim of the [COMPANY] Platform Patent Rights, [COMPANY] Patent Rights, [COMPANY] PatentRights, [COMPANY] Collaboration Patent Rights, [COMPANY] Collaboration Patent Rights or Joint Collaboration Patent Rightsin the country or countries in which such Licensed Product isA – Page 15 Manufactured ) and concluding on the expiration of the later of ( a ) the last to expire [COMPANY] Platform Patent Right, [COMPANY] Patent Right, [COMPANY] Patent Right, [COMPANY] Collaboration Patent Right, [COMPANY] Collaboration Patent Right orJoint Collaboration Patent Right containing a Valid Claim Covering the Development, Commercialization orManufacture of such Licensed Product in that country, ( b ) the last to expire [COMPANY] Platform Patent Right, AlnylamPatent Right, [COMPANY] Patent Right, [COMPANY] Collaboration Patent Right, [COMPANY] Collaboration Patent Right or JointCollaboration Patent Right containing a Valid Claim Covering the Manufacture of such Licensed Product in thecountry or countries in which such Licensed Product was Manufactured, or ( c ) ten ( 10 ) years from the date of FirstCommercial Sale of such Licensed Product in such country