definiens: means an invention or discovery that satisfies all of the following criteria : ( A ) is ~rst reduced to practic~, or describe~ in a patent application, publication, or a.bstract withi ~ n ( .lO)1vears of the EffectIve Date ; prOVIded, however, that upon the request of Mlcromet orEnzon, as i6~ case may be, at any time during the ~ ne ( 1 ) -ye ~ period following the date that is@ine ( ? fJ years from the Effective Date and upon demonstration by [COMPANY] or Enzon, as the case may be, of good commercial, technical, or legal reasons for extension of the foregoing~. ( lO)-yeajJ period, the Parties agree to negotiate in good faith the potential extension of such period for one ( 1 ) additionalllve ( 5)-ye ~ perjod, 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 26 within the Consolidated Patent Portfolio ; and ( C ) is not a human therapeutic or diagnostic product, a manufacturing method applicable to that product, or a method of using that product