definiens: ) in the Field in the Territory ( such license, the ) . As used herein, mean any issued Patent owned and controlled by a Licensee that:(a ) was filed during the period from the date [COMPANY] first exercised an Option pursuant to Section 3.2until the [ * * ] of the date [COMPANY] last exercised an Option pursuant to Section 3.2 or the earlier termination of thisAgreement in its entirety ( ) ; and(b ) claims an invention that was made by or on behalf of such Licensee under the [COMPANY] IntellectualProperty, or using or derived from any Deliverables or Optimization Deliverables, in the course of performing activitiesunder this Agreement ; and(c ) claims an invention that is an improvement to any invention claimed ( regardless of whether such claimultimately issues ) in an [COMPANY] Patent within the [COMPANY] Intellectual Property existing prior to the filing of suchGrantback Patent to the extent that it relates to [ * * ] in a Grantback Product such that the improvement is necessaryor reasonably useful to make, use or otherwise practice such [COMPANY] Intellectual Property