Smart ring maker Oura has sued Indian rival Ultrahuman again, seeking to block U.S. sales of its Ring Pro (pictured above) just months after the redesign helped the Bengaluru-based startup return to the American market following an import ban. The case is the latest in a string of patent disputes Oura has brought against competing smart-ring makers, including Samsung and RingConn. In a complaint filed Thursday in a federal court in Texas, Oura alleged that Ultrahuman’s Ring Pro infringes two of its patents covering the ring’s design and internal components, including its battery and sensors.
Oura is seeking monetary damages and a permanent injunction that would stop Ultrahuman from selling the ring. Ultrahuman’s redesigned Ring Pro, launched in February, received a favorable ruling from U.S. Customs and Border Protection in March, paving the way for the startup’s return to the U.S. market.
The decision followed an import ban on Ultrahuman’s earlier Ring Air, which took effect after Oura secured a patent infringement ruling from the International Trade Commission in August last year. One of those patents, 12,769,363, is also very new. It was issued to Oura on October 20, just two days before it filed the lawsuit.
It covers a smart-ring design incorporating internal components such as a curved battery, circuit board, magnets, and sensors. Oura has also named Texas-based electronics manufacturer SVTronics as a defendant in the lawsuit. The complaint says SVTronics manufactures the Ring Pro at a facility in Plano, Texas, allegedly under Ultrahuman’s direction and control.
It also alleges that both companies infringe Oura’s patents through the manufacture, importation, and sale of the device in the U.S. Oura and Ultrahuman have been fighting over patents since 2023, when Oura sued the Indian startup over its Ring Air, which had helped Ultrahuman make a name for itself in the U.S. Oura brought a separate case before the U.S.
International Trade Commission in 2024 that helped it secure a ruling last year, leading to the import ban on the Ring Air. Ultrahuman is not the only rival facing legal pressure from Oura. The company has also pursued patent infringement claims against smart-ring makers including Samsung, RingConn, Circular, and Zepp Health.
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