ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,440,642, issued on Oct. 14, was assigned to ResMed Pty Ltd (Australia).
"Control for pressure of a patient interface" was invented by Benjamin Matthew Austin (Sydney) and Liam Holley (Sydney).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of an apparatus control pressure in the patient interface. A vent valve may be used with a respiratory device, where the vent valve may selectively block fluid communication between components, such as the flow generator, the patient interface, and/or the vent. An expiratory flow model may be used to determine an expiratory characteristic such as an expiratory flow rate or pressure in the patient interface wher...