Microsoft did not invalidate anything > claims to own the concept of "product activation" in software, had all claims ruled invalid by the Patent Trademark and

Microsoft did not invalidate anything > claims to own the concept of "product activation" in software, had all claims ruled invalid by the Patent Trademark and Appeals Board (PTAB) >The PTAB case against Uniloc's patent was filed by Sega of America, Ubisoft, Cambium Learning Group, and Perfect World Entertainment Microsoft paid the settlement and went on with business > It was Uniloc's lawsuit against Microsoft that provided the company with its original headlines. > Microsoft settled for an undisclosed sum