ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,736,947, issued on Sept. 15, was assigned to The Boeing Co. (Arlington, Va.).

"Operator assist tool cart" was invented by Jason Andrew Kerestes (Phoenix), Ashley Susan Rook (North Charleston, S.C.), Kimberly-Alice Dendramis Gregersen (Seattle) and Akunnaya Onubogu (Charleston, S.C.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A motorized utility cart designed to assist in the precision operation of various handheld tools. In one embodiment, the cart is equipped with four wheels, a motor, and a drive mechanism that propels the cart forward or backward at user-defined speeds. The resulting consistent movement speed is advantageous for tools where speed...