ALEXANDRIA, Va., March 31 -- United States Patent no. 12,589,794, issued on March 31, was assigned to OSHKOSH Corp. (Oshkosh, Wis.).

"Lift steering systems and methods" was invented by Derek Williams (Oshkosh, Wis.), Jihong Hao (Greencastle, Pa.), Prabhu Shankar (Oshkosh, Wis.) and Devin Rosencrance (Oshkosh, Wis.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A lift device a base having at least two pivotal wheels and two pivotally-fixed wheels held in a forward-aligned orientation, a retractable lift mechanism, a platform coupled to and supported by a second end of the retractable lift mechanism, a steering system extending between the at least two pivotal wheels. The steering system includes a first knuck...