Samsung (3:24-cv-03245) has filed a complaint in the Northern District of California seeking declaratory judgments of noninfringement of five patents held by Oura Health through the coming provision of its Galaxy Ring in the US. Samsung grounds declaratory judgment jurisdiction on, among other things, Oura’s public promises to protect its own IP; Oura’s past litigation activities against smart ring competitors Circular, RingConn, and Ultrahuman in US district court and before the International Trade Commission (ITC); and Oura’s willingness, in those prior actions, to “assert infringement of its patents based on features common to virtually all smart rings, such as the inclusion of sensors, electronics, and batteries, and displaying a summary of the sensors’ measurements to the user, often in the form of a ‘score’”. In parallel, Samsung has also turned to the Patent Trial and Appeal Board (PTAB).