Oura Sues Ultrahuman Again, Targeting the Ring Pro's U.S. Return

Oura has filed a patent infringement complaint against Ultrahuman in a federal court in Texas, seeking to block U.S. sales of Ultrahuman's Ring Pro. The complaint was filed on October 22, 2026, and asks for monetary damages and a permanent injunction halting sales of the device. TechCrunch

Oura alleges the Ring Pro infringes two of its patents, D804,471 and 12,769,363. The first covers ring design. The second, which the U.S. Patent and Trademark Office issued on October 20, two days before the filing, describes a smart-ring design that incorporates a curved battery, a circuit board, magnets, and sensors. The complaint's allegations cover both ring design and internal components, including the battery and sensors.

Oura also named SVTronics, a Texas-based company, as a defendant. The complaint alleges that SVTronics manufactures the Ring Pro at a facility in Plano, Texas, under Ultrahuman's direction and control. Naming the manufacturer places the production site itself within the case, not only the importer or brand.

The dispute goes back to 2023, when Oura sued Ultrahuman over the Ring Air and alleged that Ultrahuman had created a ring and user interface with designs similar to Oura's. Oura later filed an action with the U.S. International Trade Commission (ITC) against Ultrahuman, RingConn, and Circular, alleging infringement of multiple patents related to the Oura Ring form factor and the Oura App. In August 2025, the ITC issued a determination finding infringement, and an import ban on the Ring Air took effect afterward.

Ultrahuman has pursued its own claims. In August 2025 it filed a patent infringement case against Oura in the Delhi High Court, which remained pending as of February 2026. Mashable reported that Ultrahuman's lawsuit against Oura was dismissed on Sept. 1 by Justice Manmeet Pritam Singh Arora.

Ultrahuman had been working toward a return to the U.S. market. In February 2026 it unveiled a redesigned smart ring while it awaited U.S. clearance. In March 2026, U.S. Customs and Border Protection issued a favorable ruling on the redesigned Ring Pro. The October complaint is therefore aimed at the product that Ultrahuman had positioned for re-entry, not at the Ring Air that was subject to the earlier exclusion order.

Oura, for its part, has a separate corporate track in view. Bloomberg reported on May 21, 2026, that Oura Health Oy had filed confidentially for a U.S. initial public offering.

In my view, the sequence is the more informative part of this story. A redesign cleared at the border in March is now being tested in district court against a different set of patents, one of which was granted only days before the complaint. Whether an engineering change to a battery, board, or sensor layout is enough to avoid claims on the form factor itself is a question the court will have to answer.

The practical stakes are concentrated. For Ultrahuman, the requested injunction would apply to the product it has been trying to return to the U.S. market with. For Oura, a win would extend its exclusion from a category it helped define to a second design generation. For hardware teams building rings and other wearables, the outcome will indicate how far design patents and component-level claims can reach once a product is redesigned around an earlier ruling.

No ruling on the new complaint has been reported yet. Whether the case ends in an injunction, a settlement, or a further design change, a defined boundary between protectable form factor and open component engineering would give the sector a firmer basis for product planning than the current cycle of filings and rulings does.