Enlarge (credit: St. Regis Mohawk Tribe / Aurich Lawson) The St. Regis Mohawk Tribe has filed patent lawsuits against Amazon and Microsoft, using patents it acquired from a company called SRC Labs, according to reports in Reuters and CNBC. Until recently, the patents were owned by a holding company called SRC Labs, which is a co-plaintiff in today's lawsuit. The lawsuits against Amazon and Microsoft are the second and third lawsuits filed by patent-holding companies working together with Native American tribes.