ALEXANDRIA, Va., June 6 -- United States Patent no. 12,281,721, issued on April 22, was assigned to Honeywell International Inc. (Charlotte, N.C.).

"Metering valve with stepper motor-controlled rotary follow-up servo" was invented by J. Dugan Shelby (South Bend, Ind.), Bradley McRoberts (South Bend, Ind.), Martin Dutka (South Bend, Ind.), Austin Hasse (South Bend, Ind.) and Sammuel Tillich (South Bend, Ind.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A metering valve includes a valve body, a valve element, a rotary servo, and a stepper motor. The valve body has a valve chamber, a fluid inlet port, a fluid outlet port, a metering valve control pressure inlet port, a servo control pressure inlet port, and a...