ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,427,279, issued on Sept. 30, was assigned to ResMed Pty Ltd (Bella Vista, Australia).
"Single flow and pressure activated AAV" was invented by Muditha Pradeep Dantanarayana (Sydney).
According to the abstract* released by the U.S. Patent & Trademark Office: "A patient interface includes a seal-forming structure, a shell, and an AAV. The shell and the seal-forming structure form at least a portion of a plenum chamber pressurizable to a therapeutic pressure. The shell includes a first port into the plenum chamber, the first port configured to allow air to flow between the plenum chamber and ambient. The shell includes a passageway including a second port into the plenum chamber, the p...