ALEXANDRIA, Va., March 24 -- United States Patent no. 12,583,695, issued on March 24, was assigned to Overhead Door Corp. (Lewisville, Texas).

"Dock leveler" was invented by Kirk E. Mellits (Fort Worth, Texas), Girish Malligere (Frisco, Texas), Philip Sotak (Lewisville, Texas) and Ruiping Ouyang (Richardson, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A dock leveler that fits within the pit of a loading dock. The dock leveler may have a rear leg bracket including a plurality of legs. The legs may be couplable to a bottom surface of the leg bracket and to a rear wall of the pit and may have a bottom portion attached to the bottom surface of the pit. The dock leveler may have a deck with a rear portio...