definiens: shall mean one or more Antibodies which bind CD22, Genetic Materials encoding such Antibody(ies ), and/or any Antibody Cells which contain, express or secrete such Antibody(ies ) or Genetic Materials which encode such Antibody(ies ) . shall specifically include, without limitation, Product(s ) as defined in A39 of Exhibit A and 2nd Generation Product(s ) as defined in A46 of Exhibit A All shall mean one or more Antibodies which bind CD22 ligand(s ) and which interfere with the binding ofCD22 ligand with CD22 or inhibit the activation ofa CD22 pathway, Genetic Materials encoding such Antibody(ies ), and/or Antibody Cells which contain, express or secrete such Antibody(ies ) or Genetic Materials which encode such Antibody(ies )