definiens: means technology ( and the Patents that Cover such technology ) related to : ( a)product formulation ; ( b)manufacturing, purification, or production ; ( c)the sequence of, or any modification to, a Progr am Antibody ( including Patents relating to pegylation or other chemical modificati on ) or sequences of antibodies against a Target ; ( d)technology used in activities performed by or on behalf of iTeos or its Licensees, including assays, in vivo testing, and modifications to Program Antibodies ; ( e)any Target ( including any antigen representation thereof ), or any mechanism of action via interaction with a Target, or antibodies based on their interaction with a Target, or their having been tested for their activity against a Target in a biological assay, or other methods of using antib odies ; ( f)the use of iTeos Materials ; ( g)if other than an Immunoglobulin G ( IgG ), the con struct of any Product ; and ( h)technology related to anything other than the ma nner in which [COMPANY] discovered the antibody . 1.21 means therapeutic, prophylactic or diag nostic uses in human disease