ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,959, issued on Nov. 18, was assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC (Detroit).

"Passive electromagnetic damper with asymmetrical forces" was invented by Alireza Fatemi (Canton, Mich.) and Chandra S. Namuduri (Troy, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A vehicle, suspension system of the vehicle and method of operating the suspension system is disclosed. The suspension system includes a rotary motor, a rectifier circuit and a logic circuit. The rotary motor is configured to generate a current based on a direction of rotation of the rotary motor. The rectifier circuit is configured to applying a damping force against the rotati...