definiens: means ( a ) a collaboration between Buyer or its Affiliates and one or more ThirdParties for the research, development, manufacturing and/or commercialization of one or more Royalty Products that(i ) includes a license or sublicense to such Third Party under the Acquired Sirna Patents alone or in conjunction withother Patent Rights owned or controlled by Buyer and ( ii ) is established under a written agreement ( or series of relatedwritten agreements, in each case ) signed after the Closing Date in which Buyer or its CERTAIN CONFIDENTIAL PORTIONS OF THIS EXHIBIT WERE OMITTED AND REPLACED WITH . ACOMPLETE VERSION OF THIS EXHIBIT HAS BEEN FILED SEPARATELY WITH THE SECRETARY OF THESECURITIES AND EXCHANGE COMMISSION PURSUANT TO AN APPLICATION REQUESTING CONFIDENTIALTREATMENT UNDER RULE 24b-2 OF THE SECURITIES EXCHANGE ACT OF 1934