Oura filed a patent infringement complaint against Ultrahuman today, alleging that a redesigned version of its smart ring continues to use technology covered by Oura patents. The company brought the case in the U.S. District Court for the Eastern District of Texas, extending a dispute that has already affected Ultrahuman’s access to the United States market. Oura says the new lawsuit asserts additional patents covering both design and utility, putting more than a single patent at issue in its challenge to the modified ring.
The case follows a 2025 decision by the United States International Trade Commission, which found that Ultrahuman’s ring infringed Oura patents, according to Oura. That ruling barred Ultrahuman smart rings and their components from being imported into the United States, Oura says. The earlier infringement finding concerned the ring before Ultrahuman introduced its modified version.
Read more: Oura and MD Live Plan GLP-1 Support With a Plan-Provided Ring
According to Oura, Ultrahuman recently introduced the modified ring and claimed that changes to its design meant it no longer infringed Oura’s patents. Oura disputes that position, alleging that the latest version still uses multiple innovations protected by its intellectual property despite the changes Ultrahuman made.
Oura framed its objection to the redesign this way: "Changing a product to sidestep one patent does not give Ultrahuman the right to use the rest of Oura’s innovations." The company also argues that patent protection extends to the substance of an invention, including a variation that retains its core. Oura says it will vigorously defend its work while continuing to develop benefits for members.
The lawsuit comes after Oura’s recent launch of Oura Ring 5, which the company describes as its most accurate ring yet and the world’s smallest smart ring. Oura links its patent enforcement to preserving its ability to continue developing products, citing years spent researching, designing and testing health technology.
