Each Company owns, or has the right to use, all of the patents, patent applications, industrial designs, designs, trademarks, service marks, copyrights and licenses, and rights with respect to the foregoing, necessary for the conduct of its business without any known material infringement of valid rights of others to any of the foregoing.   Schedule 6.17 hereto sets forth all patents, trademarks, copyrights and service marks owned by each Company which are federally registered as of the Closing Date and all material license agreements of any the foregoing by any Company to another party, as of the Closing Date.