ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,763, issued on June 17, was assigned to Sandvik Mining and Construction Oy (Tampere, Finland).

"Hydraulic system, working vehicle and method" was invented by Samuli Verho (Tampere, Finland) and Harri Vatanen (Tampere, Finland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hydraulic system, working vehicle, and method for producing hydraulic power to a hydraulic system of a working vehicle is provided. The hydraulic system includes a fixed displacement hydraulic pump and a speed and torque controlled electric motor for driving the hydraulic pump. An electric controller is arranged to adjust the speed of the electric motor and to thereby adjust prod...