Oura Health sued Indian rival Ultrahuman in a Texas federal court over the Ring Pro, alleging the wearable infringes two Oura patents and asking a judge to halt U.S. sales, TechCrunch and Engadget reported^1,2.

The complaint, filed Thursday, seeks monetary damages and a permanent injunction, according to TechCrunch¹. Oura also named SVTronics, a Plano, Texas, electronics manufacturer that the filing says makes the Ring Pro under Ultrahuman's direction, as a defendant^1,2.

The patents at issue are design patent D804,471 and utility patent 12,769,363, TechCrunch reported¹. The second patent issued Oct. 20, two days before the lawsuit, and covers a smart-ring layout with internal parts such as a battery, circuit board, magnets and sensors, according to both outlets^1,2.

U.S. Customs and Border Protection cleared the redesigned Ring Pro in March after an International Trade Commission ruling last year led to an import ban on Ultrahuman's earlier Ring Air, TechCrunch reported^1,2. Oura argues that the customs decision covered only the earlier patent, not the two cited now¹.

An Oura spokesperson told TechCrunch that Ultrahuman "introduced a redesigned ring but failed to address continued infringement of Oura's patents"¹. In a company blog post cited by Engadget, Oura said Ultrahuman's claim that the redesign no longer infringes "is false"².

Ultrahuman co-founder and CEO Mohit Kumar told Engadget the company would "address these claims through the appropriate legal process and will defend our position vigorously"². TechCrunch said Ultrahuman did not respond to its request for comment¹. Engadget said the Ring Pro remains on sale in the United States².

The companies have been in patent fights since 2023, and Oura has also pursued claims against other ring makers including Samsung and RingConn, both outlets reported^1,2. TechCrunch noted Oura recently shelved a planned $2.2 billion IPO and that Ultrahuman raised $70 million in September¹.