definiens: shall mean ( a ) any product or service of Buyer or its Affiliates or Sublicensees, the manufacture, use, sale or performance of which infringes any Valid Claim included in the Purchased Patent Rights(excluding the GVAX - Pancreas Patent Rights and the GVAX - Prostate Patent Rights ) in the GVAX - Other Field,(b ) any product or service developed in whole or in part through the use of a process that is covered by a Valid Claimincluded in the Purchased Patent Rights ( excluding the GVAX - Pancreas Patent Rights and the GVAX - Prostate PatentRights ) in the GVAX - Other Field, or ( c ) any product in the GVAX - Other Field not covered by ( a ) or ( b ) but that isdeveloped and/or manufactured as a result of the use of the Purchased Technology