ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,472,326, issued on Nov. 18, was assigned to Fisher & Paykel Healthcare Ltd. (Auckland, New Zealand).
"Water out alarm" was invented by Dean Antony Barker (Auckland, New Zealand), Jack Che-Wei Hsu (Auckland, New Zealand) and Jae Chul Han (Auckland, New Zealand).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides for an improved method of determining a water out condition in a humidified gases supply apparatus. The method includes a two step process including a primary determination of a water out condition and a secondary determination of a water out condition. This primary determination is made during observation of the normal o...