ALEXANDRIA, Va., July 15 -- United States Patent no. 12,662,173, issued on June 23, was assigned to BODE-DIE TUR GMBH (Kassel, Germany).

"Tread step seal assembly for a tread system of a vehicle" was invented by Christoph Theis (Bad Wildungen, Germany), Marco Cimmino (Adelebsen, Germany) and Ulrich Arend (Dickershausen, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A modular tread step seal assembly includes a tread step module which, using a drive unit, is movable along a movement axis from a retracted position in the direction of an extended position and vice versa. The tread step module has a tread surface extending in a tread surface plane oriented parallel to the movement axis and a tread step ...