Oura Sues to Block Ring Pro

Oura has filed a new complaint in a federal court in Texas seeking to halt US sales of Ultrahuman's Ring Pro. The suit alleges the device infringes two Oura patents related to its design and internal components. Oura also named SVTronics, the Plano, Texas manufacturer that builds the US version of the ring, as a co-defendant. The company is requesting monetary damages and an injunction to stop the product from reaching American consumers.

This legal action follows a dispute over Ultrahuman's earlier Ring Air model. Last year, the US International Trade Commission found that the Ring Air violated multiple Oura patents. That ruling resulted in a ban on US sales of the Ring Air, though the device continues to sell in Europe and other regions. Ultrahuman subsequently redesigned its product to address the intellectual property concerns for the American market. Earlier this year, US Customs and Border Protection approved the redesign, clearing the Ring Pro for entry into the country.

Oura disputes the sufficiency of those changes. In a blog post, the company stated that Ultrahuman introduced the modified version claiming it no longer infringed Oura's patents. Oura called that claim false, asserting that the new ring still incorporates many of its patented innovations. The company noted that the device continues to infringe its intellectual property despite the modifications.

TechCrunch reported that one of the patents cited in the complaint, number 12,769,363, was granted only two days before the lawsuit was filed. That patent covers a smart ring design featuring specific housing, battery, and internal component configurations. Ultrahuman, which is based in India, maintains that the Ring Pro remains on sale in the US while it contests the action.

An Ultrahuman spokesperson told Engadget that the redesign has already undergone independent review in the United States. The spokesperson noted that Customs and Border Protection concluded in an earlier proceeding that the Ring Pro did not infringe the specific Oura patent considered at that time. The company stated that Oura has now chosen to assert different patents, including the one issued just before the filing. The spokesperson said Ultrahuman will defend its position vigorously.

The new suit adds to a period of frequent legal engagement for Oura. The company recently announced a partnership with the US military that utilizes a Palantir hosting environment. It is also involved in a prolonged patent dispute with Samsung. In 2024, Samsung filed a preemptive lawsuit concerning the Galaxy Ring, and Oura later sued Samsung in response. The two companies remain locked in that dispute as of this summer.