definiens: means all PATENT RIGHTS, KNOW - HOW and MATERIAL ( including the CAT ANTIBODY LffiRARY ) which CAT owns or which CAT is licensed to use which directly relate to ANTIBODIES at the Effective Date or during the RESEARCH TERM or IMPROVEMENTS which CAT owns before or after the Effective Date which directly relate to the ANTIBODIES, including,.but not limited to, ( 1 ) the Winter n Patent Rights ( European Patent Number, EP036884JPCT / GB89/01334, and its US equivalents namely the ~·intert1 .. erner Applications, US Numbers 07/933,958,07/933,959,07/941,761,07/941,762, and their European equivalents ), ( 2 ) the McCaffeny Patent Rights ( European Patent Number EP0584877B1IPCTGB91101 134, and U.S. equivalents ) and ( 3 ) the Griffiths Patent Rights ( US Number 5,885,793, and its European equivalents ) all licensed to CAT pursuant to the license agreement dated January 7 . 1997 between CAT and the Medical Research Council ( " N!RC '' ) . In addition . for the sake ofclariry . CAT BACKGROUND IP shall include PAlENTRIGHTS, KNOW - HOW, and MATERIAL related to CAT 's ProAb and ProxiMol technologies