ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,135, issued on Jan. 13, was assigned to Aesculap AG (Tuttlingen, Germany).
"Screwdriving tool and assembly method using a screwdriving tool" was invented by Sven Barthelmes (Emmingen-Liptingen, Germany) and Pedro Morales (Tuttlingen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A screwdriving tool and an assembly method for screwing in a screw using the screwdriving tool. The screwdriving tool includes a first tool shaft with an end-side screw-engaging portion for transmitting a torque to the screw, and a second tool shaft that is orientable axially with respect to the first tool shaft and in an opposite direction, in such a way that an en...