ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,728,220, issued on Sept. 8, was assigned to Fisher & Paykel Healthcare Ltd. (Auckland, New Zealand).

"Breathing assistance apparatus" was invented by Malik Tivanka Rajiv Peiris (Auckland, New Zealand) and Simei Gomes Wysoski (Auckland, New Zealand).

According to the abstract* released by the U.S. Patent & Trademark Office: "A breathing assistance apparatus for providing respiratory therapy such as bubble CPAP therapy comprises a flow generator, a gases flow pathway, a pressure regulator, a gases property sensor and a controller. The controller of the apparatus can be configured to detect the presence of bubbling in the pressure regulator based on the at least one waveform characteris...