ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,522,491, issued on Jan. 13, was assigned to Terex South Dakota Inc. (Watertown, S.D.).

"Lift device and method of controlling on a grade" was invented by Zachary Fung (Kirkland, Wash.), Giulio Dall'anese (Perugia, Italy), Pietro Sanchirico (Corciano, Italy), Mark Case (Watertown, S.D.) and Brian M. Clark (Seattle).

According to the abstract* released by the U.S. Patent & Trademark Office: "A lift device and a method of controlling the lift device are provided. The lift device has a lifting mechanism supporting a lifting platform relative to the chassis. An electric motor is drivingly coupled to a traction device, and a traction battery is in electrical communication with the electric...