ALEXANDRIA, Va., July 30 -- United States Patent no. 12,371,112, issued on July 29, was assigned to HORIZON GLOBAL AMERICAS INC. (Plymouth, Mich.).

"Pin box assembly with adjustable engagement device" was invented by Curt Nowack (Plymouth, Mich.), Bradley Larsh (Plymouth, Mich.), Owen Draper (West Bloomfield, Mich.), Jeremy Butler (Plymouth, Mich.) and Henry James Guthard (Plymouth, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a pin box assembly that includes an adjustment assembly configured to adjust a range of pivotal movement of a towed vehicle related to a towing vehicle. The pin box assembly includes a towed vehicle attachment member, an elongated arm, and a king pin with an adjust...