This excerpt taken from the NGSX 8-K filed Aug 22, 2008.
OWNERSHIP AND LICENSES
6.1 Background IP. Each Party shall retain all right, title and interest in and to all inventions (whether or not patentable), discoveries, technology and know-how (collectively, Inventions) that are owned or controlled by such Party as of the Effective Date or developed and/or acquired by such Party entirely independently and outside of this Agreement after the Effective Date.
6.2 NeurogesX Property. NeurogesX shall own all data, documents, protocols, and materials created, reduced to practice or compiled by Supplier in the course of performing Services that are based on NeurogesX Confidential Information (collectively, the NeurogesX Property).
6.3 Supplier Technology. Pursuant to Section 6.1, Supplier shall own all right, title and interest in and to the Supplier Background Technology and all improvements and modifications thereto, which improvements are of a general nature, performed independently, without use of or reference to NeurogesX Confidential Information, including for example, standard operating procedures, software or laboratory methodologies (the Supplier Improvements).