ALEXANDRIA, Va., July 15 -- United States Patent no. 12,661,476, issued on June 23, was assigned to 3B Medical Inc. (Winter Haven, Fla.).

"Control system for portable oxygen concentrator" was invented by Perry Karl Jagger (Hudson, Wis.), Theodore W. Jagger (White Bear Lake, Minn.) and Albert A. Lucio (Haines City, Fla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "This disclosure relates to a control system for a portable oxygen concentrator (POC). Specifically, this disclosure relates to a method and a system configured for use with an oxygen delivery system that includes nasal fitting which does not include nostril prongs. Because the nasal fitting does not include nostril prongs, user comfort is dramatic...