ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,715,305, issued on Aug. 25, was assigned to AUMOVIO Germany GmbH (Hanover, Germany).

"Method for controlling the rotational speed or the torque of a motor, rotational speed control system and control device" was invented by Christian Gunselmann (Eschborn, Germany), Bogdan Budianu (Oberursel, Germany), Andreas Donner (Frankfurt am Main, Germany) and Albert Cimpoesu (Buruienesti, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for controlling the rotational speed or the torque of a motor to protect a suppressor diode in a control device of a vehicle, wherein the suppressor diode converts recuperation energy of the motor into thermal energy...