ALEXANDRIA, Va., July 28 -- United States Patent no. 12,691,715, issued on July 28, was assigned to Vibracoustic SE (Darmstadt, Germany).

"Supporting ring and assembly with a supporting ring" was invented by Jan Ole Maack (Hamburg, Germany) and Michael Morrison (Winsen, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A supporting ring for an air-suspension strut. In embodiments, a support ring has a central longitudinal axis and includes a wall. In a radially inward direction, the wall has or forms an internal-abutment geometry that projects in the radial direction, and/or, in a radially outward direction, the wall has or forms an external-abutment geometry that projects in the radial direction."

The...