ALEXANDRIA, Va., June 10 -- United States Patent no. 12,291,837, issued on May 6, was assigned to Caterpillar Inc. (Peoria, Ill.).

"Coupling assembly and method of hydraulically coupling to a tool" was invented by Peter Lauterslager (Oss, Netherlands).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of coupling a tool to a work machine including inserting a front lug of a coupling assembly into a front recess on the tool, inserting a rear lug of the coupling assembly into a rear recess on the tool, moving a retaining member of the coupler assembly to a retaining position relative to the tool to releasably mount the tool to the work machine, while simultaneously preventing movement of a hydraulic coupli...