definiens: ICI Agreement " ) . As used herein the ICI Process shall mean the hyaluronic acid fermentation process which was the subject of a certain Development Agreement with ICI and MBL dated March 1, 1987 and all improvements thereto owned by or licensed to Seller as of the Contract Date . In the event Seller acquires any right, title or interest ( including any licenses or sublicenses from any other party ) in or to any additional know­how, patents, or improvements relating specifically to the - ICI Process during the term of this Agreement and Seller uses the rCI Process with such additional know - how, patents or improvements in the manufacture of Amvisc Products for Buyer under this Agreement, to -the extent the ICI Agreement is still in effect, Seller shall grant a worldwide, royalty free exclusive license to Buyer in the Ophthalmic Field to make, have made, use and sell products utilizing such additio.nal know - how, patents or improvements . Buyer shall, however, not practice under such license until termination or expiration of this Agreement or sooner upon Buyer 's exercise of its right to obtain a second source of supply under Section 2.2, 3.6.2, 3.7 or 4.5 as provided for in Section 9.4 . Unless the provisions of Section 2.2, 3.6.2, 3.7, 4.5 or 9.4 are implicated, Buyer 's right to grant sublicenses thereto shall he limited to Affiliates of Buyer