definiens: means all Tissue Factor Antagonists owned by Seller as of the Effective Date or thereafter ( but prior to o r on the Closing Date ), including but not limited t o those molecules referred to by Seller as H36 ( mouse anti- tissue factor monoclonal antibody ), cH36 ( chimeric anti - tissue factor monoclonal antibody IgG4 ), hOAT ( huma nized anti - tissue factor monoclonal antibody IgG1 ), and hFAT ( humanized anti - tissue factor monoclonal antib ody IgG4 ) ( including their derived fragments, encod ing nucleic acids, expression vectors and plasmids, and hybridomas and production cell lines for producing same ), and 57 - 5F, 57 - 6A, Sarco - C, Sarco - E, FAU-1 and FAU-2