definiens: means, with respect to any particular Product in any particular jurisdiction in the Territory, the period of time beginning on t he First Commercial Sale of such Product in such ju risdiction and ending on the later of ( a ) the expiration of th e last to expire Valid Claim of the ( i ) [COMPANY] P atent Rights, ( ii ) Product Patent Rights or ( iii ) any other Paten t Right claiming an Invention specific to the Compo und or the Product as it relates to the Compound, in the case of each of ( i ), ( ii ) and ( iii ), such Patent Rights containing a Valid Claim that Covers the sale of Product in the People ’s Republic of China, ( b ) ten ( 10 ) years from the F irst Commercial Sale of the first Product in such jurisd iction, and ( c ) expiration of all Regulatory Exclus ivities in such jurisdiction