definiens: shall mean that the license granted herein to Licensee shall be exclusive ( even as pertaining to Licensor ) within the Field, provided, however, that Licensor hereby retains the right to perfonn activities within the Co - Exclusive Field without the right to grant further licenses or sublicenses within the Co - Exclusive Field . The Parties hereby acknowledge and agree that Third Party purchasers of products from Licensor for use within the Co - Exclusive Field shall be entitled to use such products within the Co - Exclusive Field, and Third Party recipients of services within the Co - Exclusive Field from Licensor will be entitled to use the materials and data reSUlting from such services, in both cases free and clear of any claim for a royalty, or other claim, of Licensee, based on or arising under Licensee 's rights hereunder in the Licensed Patents . Licensor shall include the following restrictive language, or language which is substantially equivalent, on all packaging, labels, promotional literature and contracts for products that include or are composed of sequencing applications that are capable, with or without modification, of being used within the Field : Restriction on Use . J As a condition of sale of this product, purchaser agrees not to use the product to perform in excess of 50,000 sequencing reactions on a sample or samples without changing the micro - titer plate or other substrate . Failure to comply with this restriction will resul.t in an infringement of patent rights and other intellectual property rights of seller or third parties and a breach of the terms of the sale of this product