definiens: means ( a ) the Buyer ; ( b ) with respect to any MRT Compound or MRT Product, any Person to which any right to develop or sell such M RT Compound or MRT Product is licensed, sublicensed, assigned or transferred by the Buyer ; ( c ) with resp ect to any MRT Compound or MRT Product, any Person to which the right to develop or sell such MRT Compoun d or MRT Product is licensed, sublicensed, assigned or transferred by any Person described in clause ( b ) a bove ; ( d ) with respect to any MRT Compound or MRT Product, any successor or assign of any Person desc ribed in clauses ( a ), ( b ) or ( c ) above with respect to such Person ’s interest in such MRT Compound or MRT Produ ct ; and ( e ) with respect to any MRT Compound or MRT Product, any Affiliate of any Person described in clauses ( a ), ( b ), ( c ), or ( d ) involved in the de velopment or commercialization of such MRT Compound or MRT Produ ct with or on behalf of such Person . For the avoidance of doubt, Buyer Rights Group shall not in clude a reseller or distributor of an MRT Product t hat ( i ) purchases such MRT Product for resale and ( ii ) does not need a license from a Buyer Rights Group m ember to a Transferred Patent in order to resell such MRT Product