Smart Ring Patent Fight: Oura Sues Over New Ultrahuman Design

Oura filed a new lawsuit in Texas federal court on Thursday, seeking to stop Ultrahuman from selling its Ring Pro wearable in the United States. The complaint names Ultrahuman and SVTronics, the Texas-based manufacturer of the device, as defendants.

The suit claims the Ring Pro infringes two Oura patents related to the ring's design and internal components. Oura is asking for monetary damages and a court order to ban US sales, mirroring the remedy it sought in its previous dispute over the Ring Air.

This legal action follows a 2025 ruling by the US International Trade Commission that found the Ring Air violated multiple Oura patents. That decision resulted in a ban on US sales of the older model, though it remains available in Europe. Ultrahuman subsequently redesigned the hardware to create the Ring Pro, which received approval from US Customs and Border Protection earlier this year.

Oura argues that the redesign did not remove the patented elements. The company stated in a blog post that Ultrahuman's claim of a non-infringing design is false because the new ring still incorporates many of Oura's innovations. TechCrunch reported that one of the patents cited in the suit, number 12,769,363, was granted only two days before the complaint was filed. That patent broadly covers a smart ring housing, battery, and specific internal parts.

Ultrahuman, which is headquartered in India, said it will contest the case. A spokesperson told Engadget that the Ring Pro has already undergone independent review in the United States. The company noted that Customs and Border Protection previously determined the ring did not infringe the specific patent considered during that earlier proceeding. The spokesperson added that Oura is now asserting different patents, including the one issued just before the lawsuit, and that Ultrahuman will defend its position vigorously.

The Ring Pro for the US market is built at a plant in Plano, Texas, by SVTronics under Ultrahuman's direction. SVTronics is included in the suit as a co-defendant. Ultrahuman has confirmed the Ring Pro remains on sale in the US while the litigation proceeds.