definiens: means, collectivel y : ( a ) which means K now - How that ( i ) is Controlled by CELGENE or any of its Affiliates as of the Origi nal Effective Date or thereafter during the Term, ( ii ) arises outside of the Collaboration, ( iii ) is provided by CELGENE to the Collaboration pursuant to Section 2 . 2.3(c)(i ) for the Parties ’ research, development, manufacture or commercialization of a Collaboration BAC or Collaboration ADC Directed to a Target Combination, and ( iv ) is necessary or reasonably useful for the research, development, manufacture or commercializa tion of any Collaboration BAC or Collaboration ADC Directed to a Target Combination or its correspondi ng Development Candidate, Licensed Products or Diag nostic Products, as applicable, in the Field ; and 4 * Confidential Treatment Requested