ALEXANDRIA, Va., May 12 -- United States Patent no. 12,624,773, issued on May 12, was assigned to Azbil Corp. (Tokyo).

"Wireless opening meter, valve maintenance support system and support method" was invented by Itsuki Tanabe (Tokyo), Fumiaki Yamasaki (Tokyo) and Masato Tanaka (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A wireless opening meter includes measurement portions that measures an opening, a pneumatic pressure supplied to an operation device, and a temperature at an outlet side of the control valve; a failure diagnosis portion that calculates an index of a change leading to a failure of the valve based on a measurement value, and executes failure diagnosis of the valve based on the index...