ALEXANDRIA, Va., March 24 -- United States Patent no. 12,582,789, issued on March 24, was assigned to ResMed Asia Pte. Ltd. (Singapore).
"Modular oro-nasal patient interface" was invented by Robin Yew (Singapore), Weiyi Chia (Singapore), Han Cheng Lin (Singapore) and Sipu Chen (Singapore).
According to the abstract* released by the U.S. Patent & Trademark Office: "A patient interface including a vent structure that allows a continuous flow of gases exhaled by the patient from an interior of a nasal plenum chamber to the ambient. The vent structure is sized and shaped to maintain the therapeutic pressure in the nasal plenum chamber in use. The vent structure includes a housing secured to the nasal plenum chamber, and a vent wall coupled to...