ALEXANDRIA, Va., June 6 -- United States Patent no. 12,281,999, issued on April 22, was assigned to Rosemount Inc. (Shakopee, Minn.).

"In-situ oxygen analyzer with solid electrolyte oxygen sensor and ancillary output" was invented by Pavel Shuk (Copley, Ohio), Chad M. McGuire (Shakopee, Minn.), Matthew Theisen (Shakopee, Minn.) and Philip Ostby (Cologne, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An improved oxygen analyzer includes a controller configured to receive an oxygen sensor signal and provide an oxygen concentration output. A probe is configured to extend into a source of combustion process gas. An oxygen sensor is disposed within the probe and has a sensing electrode mounted to one side ...