definiens: means ( a ) on an Exclusive Product - by - Exclusive Product an d country - by - country basis, the period commencing on the First Commercial Sale of the rele vant Exclusive Product and ending upon the later to occur of : ( i ) the [ * ] anniversary of the date of First Commercial Sale o f such Exclusive Product in such country ; or ( ii ) the expiration of the last to expire Valid Pate nt Claim of [ * ] that would be infringed by the manufacture, use, sale, offer for sale or import of the Exclusive Product in such cou ntry, if not for the licenses granted hereunder ; or ( b ) on a [COMPANY] Product - by - [COMPANY] Product and count ry - by - country basis, the period commencing on the First Commercial Sale of the rele vant [COMPANY] Product and ending on the later to occu r of : ( i ) the [ * ] anniversary of the date of the First Commercial Sa le of such [COMPANY] Product in such country ; or ( ii ) the expiration of the last to expire Valid Pate nt Claim of [ * ] that would be infringed by the manufacture, use, sale, offer for sale or import of the [COMPANY] Product in such countr y, if not for [COMPANY] ’s ownership interest or the licenses granted hereunder ; or ( c ) on an SGI Product - by - SGI Product and country - by -country basis, the period commencing on the First Commercial Sale of the rele vant SGI Product and ending on the later to occur o f : ( i ) the [ * ] anniversary of the date of the First Commercial Sa le of such SGI Product in such country ; or ( ii ) the expiration of the last to expire Valid Pate nt Claim of [ * ] that would be infringed by the manufacture, use, sale, offer for sale or import of the SGI Product in such country i f not for the assignment of the [ * ] hereunder or the licenses granted hereunder