definiens: means activities directed to ( a ) preparing, filin g and prosecuting applications ( of all types ) for any Patent Rights, ( b ) managing any interference, opposition, re - issue, reexamination, supplemental examination, invalidati on proceedings ( including inter partes or post - grant review proceedings ), revocation, nullification, or cancell ation proceeding relating to the foregoing, ( c ) dec iding whether to abandon, extend or maintain Patent Rights, ( d ) l isting in regulatory publications ( as applicable ), and ( e ) settling any interference, opposition, reexamination, invali dation, revocation, nullification or cancellation p roceeding, but excluding the defense of challenges to such patent or patent application as a counterclaim in an infri ngement proceeding with respect to the particular patent or patent application, and any appeals therefrom . For purposes of clarity, will not include any other enforcement actions taken with respect to a p atent or patent application