ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,491,617, issued on Dec. 9, was assigned to Hilti AG (Schaan, Liechtenstein).
"Method for operating a machine tool and machine tool" was invented by Qin Liu (Oberschleissheim, Germany), Bernd Gillmeier (Landsberg, Germany) and Stefan Schmid (Untermuehlhausen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for operating a machine tool having a battery and an electric motor which is designed to rotationally drive an output shaft that can be coupled to a tool is described, a control device for actuating the electric motor and a device for determining a parameter being provided, it being possible for the machine tool to be operated in a first...