Ubisoft has received summary judgment from a U.S. District Court judge that allows it to separate itself from a long-running legal fight over patents related to digital rights management, including its own Uplay service. The lawsuit began in 2011 when Digital Reg of Texas, LLC, filed a lawsuit against Adobe Systems, Valve, Ubisoft and other companies over various aspects of their digital content delivery and authentication services. Some of the defendants (like Valve) settled with the company. Ubisoft did not settle and has been found not guilty of infringement.
"Ubisoft is determined to aggressively fight patent cases that target the company and its innovations and technologies," read a statement from a Ubisoft representative regarding the company's legal victory. "Ubisoft is committed to defending itself against patent assertion entities – referred to as patent 'trolls' -- that assert invalid or inapplicable patents against the company or the industry."
You can check out the ruling here (PDF).