Another PTAB proceeding has been filed against ResMed, with IPR2026-00341 entering the Patent Trial and Appeal Board on June 12, 2026. The petition places one of ResMed’s patents under inter partes review, opening a new front in what could become an important dispute for companies operating in the sleep-disorder and respiratory-device space.

At this stage, the publicly available docket identifies the proceeding by the title Resmed Corp., but practitioners will want to monitor the case record closely as the petition, mandatory notices, and related filings further clarify the specific patent claims at issue, the identity of all real parties in interest, and any parallel district court or ITC litigation that may shape the Board’s discretionary-review analysis.

As with any newly filed IPR, the key issues will center on which patent is being challenged, which claims are targeted, and what prior-art grounds are asserted. Typically, petitioners rely on anticipation and obviousness grounds under 35 U.S.C. §§ 102 and 103, supported by combinations of patents, printed publications, and expert declarations.

A new inter partes review proceeding at the Patent Trial and Appeal Board could draw close attention from patent owners, challengers, and counsel following the medical technology sector. In IPR2026-00341, filed June 12, 2026, the petition is styled Resmed Corp., signaling that ResMed is involved in a fresh PTAB dispute over the validity of an issued patent.

At this early stage, the public docket identifies the proceeding but may not yet fully reflect all underlying petition details, including the specific patent number, all real parties in interest, and the complete list of asserted prior-art grounds.