Supplemental Agreement to Licence Agreement between British Technology Group Limited and LeukoSite, Inc. (May 19, 1998)

Summary

This agreement is between British Technology Group Limited and LeukoSite, Inc. It supplements a previous licence agreement from March 31, 1997, to clarify issues related to a sub-licence granted by LeukoSite to L&I Partners, L.P. The agreement updates the definition of "Group" in the original licence, requires LeukoSite to notify BTG if L&I plans legal action regarding the licensed patents, and confirms that a specific clause from the original licence also applies to this supplemental agreement.

EX-10.22 8 a2040039zex-10_22.txt EXHIBIT 10.22 EXHIBIT 10.22 DATED 19 MAY 1998 - -------------------------------------------------------------------------------- (1) BRITISH TECHNOLOGY GROUP LIMITED - and - (2) LEUKOSITE, INC. - -------------------------------------------------------------------------------- SUPPLEMENTAL AGREEMENT relating to the Licence Agreement made between the same parties dated 31(st) March 1997 - -------------------------------------------------------------------------------- THIS DEED made the 19(th) day of May 1998 between (1) BRITISH TECHNOLOGY GROUP LIMITED whose company registration number is ###-###-#### and whose registered office address is at 10 Fleet Place, Limeburner Lane, London, EC4M 7SB ("BTG") and (2) LEUKOSITE INC of 215 First Street, Cambridge, MA 02142, USA ("the Licensee") is SUPPLEMENTAL to the Licence Agreement made between the parties on 31st March 1997 ("the Licence Agreement") WHEREAS:- (A) By a licence agreement effective 2(nd) May 1997 the Licensee granted a sub-licence to L&I Partners, L.P. a Delaware Limited Partnership having an address at 11550 1H 10 West Suite 300, San Antonio, Texas 78230, USA ("L&I") (B) The parties hereto have decided to enter into this Deed to clarify certain issues arising from the said sub-licence ("the Sub-Licence") NOW IT IS AGREED THAT:- 1. The words `or other legal entity' shall be deemed to be inserted after `and in the case of the Licensee any company' in the definition of "Group" in the License Agreement. 2. The Licensee shall procure that if L&I contemplates legal proceedings against a third party under one or more of the Patents (as defined in the Licence Agreement) it shall first give notice to BTG. 3. Clause 22 of the Licence Agreement also applies to this Agreement. IN WINESS whereof this document has been executed as a Deed the day and year first above written. The COMMON SEAL of BRITISH TECHNOLOGY GROUP LIMITED was affixed to this Deed in the presence of:- [Illegible] Director / Authorised Signatory [Illegible] Secretary / Authorised Signatory The Common Seal of LEUKOSITE INC. was affixed to this Deed in the presence of Director: /s/ Christopher Mirabelli Asst. Secretary: /s/ Bob Gallahue