definiens: means an invention or discovery that satisfies all of the following criteria : ( A ) is first reduced to practice, or described in a patent application, publication, or abstract withinim " ( ~OJJyears of the Effective Date ; provided, however, that upon the request of CAT at any time during the ~ e ( l)-ye ~ period following the date that isliiin, e(~years from the Effective Date and upon d.emc;.p ...., s~.tration by CAT . of good com.mercial, technical, ? r le!Sal reaso ~ s. for extension .of the foregomg ~n ( 10)-yeafJpenod, the Parties ~ree to ne ~ late m good fmth the potential extension of such period for one ( I ) additional[!jve ( 5)-yeavperiod, with the consent by the Parties to such extension not to be withheld absent demonstration of good commercial, technical, or legal reasons for opposing such extension ; ( B ) may not lawfully be Exploited without a license to one or more Valid Claims within the CAT Licensed Patents, [COMPANY] Supplemental Patents ( in the case of [COMPANY] or its Affiliates or sublicensees ), or Enzon Supplemental Patents ( in the case of Enzon or its Affiliates or sublicensees ) ; and ( C ) is not a human therapeutic or diagnostic product manufacturing method applicable to that product, or a method of using that product