ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,746,359, issued on Sept. 29, was assigned to ResMed Pty Ltd (Bella Vista, Australia).

"Patient interface" was invented by Matthew Eves (Sydney), Ryan Michael Kirkpatrick (Sydney), Rahul Khera (Sydney), Adam Francis Barlow (Sydney) and Andrew James Bate (Sydney).

According to the abstract* released by the U.S. Patent & Trademark Office: "A patient interface may include a plenum chamber and a positioning and stabilising structure. The plenum chamber may include a seal-forming structure and a fascia portion. At least a medial portion of the fascia portion is flexible. In embodiments, the patient interface may include a rigidiser to control flexing of the fascia portion."

The patent wa...