Common use of Covenant Not to Assert Clause in Contracts

Covenant Not to Assert. Licensee hereby irrevocably agrees not to Assert against PalmSource or its Subsidiaries any claim of intellectual property rights of Licensee embodied in whole or in part in: (i) the Licensee Modifications; (ii) any Licensee Replacement Fragments, other than with respect to (a) intellectual property rights of Licensee existing prior to the Effective Date (“Pre-Existing Licensee Intellectual Property”), and (b) Licensee Replacement Fragments developed solely by Licensee’s personnel who have not had access to any Source Materials; or (iii) any portions of Licensee Add-On Modules that provide adaptations and/or optimizations for interfacing with the PS Product Software or any portions that incorporate Confidential Information from PS Source Code, other than with respect to (x) Pre-Existing Licensee Intellectual Property and (y) Licensee Add-On Modules developed solely by Licensee’s personnel who have not had access to any Source Materials after the Separation Date (other than sample source code applications covered under Source Code Attachment No.