A federal court overturned a $388 million ruling against Microsoft; Case dates back to 2003, involving a “software-registration system” patent issued to Uniloc in the mid-1990s -- reversing what was believed the fifth-largest patent verdict in history. A jury in April had found that a Microsoft product activation system for Windows and Office violated an anti-piracy patent held by the Uniloc security software company. “We are pleased that the court has vacated the jury verdict and entered judgment in favor of Microsoft,” said Kevin Kutz.