A panel of three judges in a U.S. Federal Circuit court confirmed a previous verdict by the Trademark and Appeal Board of the U.S. Patent & Trademark Office (USPTO) that validated Crocs’ core patent (N° D517,789) on its clogs. The board had responded to an appeal made by a successor company of USA Dawgs, which sued Crocs for patent infringement in 2012. The board had ruled in Crocs’ favor based on evidence of prior art brought by an examiner who found that Crocs had been selling its clogs since 2002, four years before USA Dawgs filed to register its patent. The USPTO first ruled in USA Dawgs’ favor in 2017, but then restored Crocs’ patent rights two years later following an appeal against its initial determination. The Federal Circuit’s determination is expected to put an end to the long-standing dispute.