IN RE: EX PARTE REEXAMINATION OF PATENT NO. 6,264,560 | Request for Reexamination of Patent for “Method and System for Playing Games on a Network” | January 31, 2008 | The Electronic Frontier Foundation submitted this patent reexamination request (pdf) with significant support from the Cyberlaw Clinic, raising questions of patentability based on prior art patents and printed publications not previously cited by or presented to the Patent and Trademark Office.