definiens: means an exclusive licence for both CAT and the Collaborative Centre under a licence from MRC OD the specific terms and on a case by case basis as set out below in sub .. dauses 2.1.7 and 2.1.8 . For the avoidance of doubt it is a.:.crreed that the MRC shall -10 -• • « « « « f • .. " ' . ; .. not gnnt any other licences to any p : trties other th : m CAT or the Collaborative Centre ir : the rields covered by Clauses 2.1.7 and 2.1.8 ; 2.1 . 7 the co - exclusive right and licence for CAT under CAT Licence Conditions to improve . develop . make . havt made . impo ... .., market and sell antibodies originally isolated by hybridoma derived methods from DOD - primate sources ( including non­primate antibody genes ) which have been humanised using CDR grafting teehniques the subject of the oarent known as mter 1, derived from the UK Patent application UK 860 7679 filed 27 March 1986 -and US Parent Application 903776 filed 4 ) September 1986 which for the avoidance of doubt is not being licensed pursuant to this Agreement ) provided always that MRC shall have the right to grant a co - exclusive licence to Collaborative Centre on the same termS but subject to the Collaborative Centre Conditions with the right fer the Collaborative Centre to collaborate with academic or commercial third parties in relation thereto and to sub­licence such third parties to use and exploit improved antibodies including any ProductS and libraries derived from mura .. "crenesis of the original antibody and specifically created subject to any such collaboration with the Collaborative Cemn : provided that in these circumstances the term of the Collaborative Centre Conditions equivalent to Oause 7.1.3(1 ) bereof shall be varied so that the 3 smed p~~ read 6:3.33 ~ •. · 1 ~. and · · 0.33 ~lespectivelY and the term of the Collaborative Centre Conditions equivalent to Clause 7 ~1.3(b ) hereof shall be varied so that the ~Dd Slated percema : e reads @ instead orS 2.1.8 the co - uclusive right and 1ic : eDce fer CAT under CAT Liceace Conditions to use antibody muaural information to design non - antibody / drug camiidares provided always that MRC shall have the right to grant a co - exclusive lic : ence to Collaborative Centre on the same termS subject to the Collaborative Cemn : Conditions with the rilbt fer the Collaborative Centre to collaborate with academic or commercial third parties in relation thereto and to sub - licem : e such third parties to use and exploit Products identified subject to any such collaboration with Collaborative Centre