Silvers also applied for a U.S. patent on the production of Photomosaics on January 2, 1997, which was granted as in October 2000 and has been assigned to Runaway Technology, Inc. Patent applications in other countries were also filed, and patents granted include , , , and . He is quoted as saying: "By being granted this patent in the United States and other countries, we can protect our proprietary innovations and continue to make unique artwork." In September 2008, the Public Patent Foundation filed a formal request with the United States Patent and Trademark Office (USPTO) to review certain claims in the on photomosaics. The request was granted and a reexamination proceeding ensued. On August 31, 2010, the USPTO issued a Reexamination Certificate confirming the patentability of all claims in the patent which were amended to refer to shape matching (a feature that contributes to the high resolution of photomosaics).