ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,378,747, issued on Aug. 5, was assigned to Caterpillar Inc. (Peoria, Ill.).

"Universal hydraulic auxiliary depressurization circuit" was invented by Mark W. Thompson (Manhattan, Kan.), Jeffrey R. Peterson (Wamego, Kan.) and Trent R. Stefek (Wamego, Kan.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hydraulic system for depressurizing a work tool auxiliary circuit of a work machine. The system comprises: a power source; a reservoir of hydraulic fluid, a plurality of hydraulic lines, a pressure source, a control valve, a depressurize line connected to at least one of the plurality of hydraulic lines and the reservoir, the depressurize line includes an e...