A former Nike consultant, Rob Lyden, has filed a lawsuit in the Oregon District Court against Nike, challenging its patent claims on its Flyknit technology. Adidas, which is already challenging Nike's claims in a German court, has meanwhile asked the U.S. Patent & Trademark Office to re-examine Nike's and Lyden's intellectual property claims and to declare them invalid, arguing that this kind of one-piece upper knitting technology has been around in the apparel industry for many years, and that it is now in the public domain. Lyden tells SGI that he plans to license his technology to smaller players if he wins his suit.