definiens: means any and allValid Claims Directed to HCV of United States and foreign patents and patentapplications : ( a ) which are based upon inventions conceived or rights acquired ~ ktjye OJ ( as defined below ) ; ( b ) which claim HCV nucleic acidsequence ? or a me od to use ( other than in the manufacture of peptides ) ordetect such sequences specifically ; ( c ) which are owned by, licensed to orotherwise controlled by CHIRON or its Affiliates, with rights to license orsublicense ; and ( d)with respect to which CHIRON has the right to grant theoption provided for in Section 2.6 of this Agreement . For purposes of thisAgreement, an invention will be deemed to have been conceived if there is apatent, patent application, written invention disclosure statement or other tangibledocument ( whether or not witnessed ) describing such invention