ALEXANDRIA, Va., June 4 -- United States Patent no. 12,318,120, issued on June 3, was assigned to BIEDERMANN TECHNOLOGIES GMBH & Co. KG (Donaueschingen, Germany).
"Bone anchoring device" was invented by Lutz Biedermann (VS-Villingen, Germany), Timo Biedermann (Trossingen, Germany), Berthold Dannecker (St. Georgen, Germany) and Bernd Fischer (Braunlingen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "An anchoring element includes a shank for anchoring to bone and a separate head that is connectable to the shank. The head has an exterior surface with a spherically-shaped section and an unthreaded tool engagement surface that is engageable with a drive tool when the head and the shank are connected to ...