ALEXANDRIA, Va., June 10 -- United States Patent no. 12,292,071, issued on May 6, was assigned to Hilti AG (Schaan, Liechtenstein).
"Hybrid screw with compartmentalized wedge groove" was invented by Roland Schneider (Schlins, Austria).
According to the abstract* released by the U.S. Patent & Trademark Office: "A screw having a shank, wherein the shank has a tip end, a rear end, and a longitudinal axis extending through the tip end and through the rear end, wherein the tip end and the rear end are opposite ends of the shank, and a screw thread, which is connected to the shank, and which winds around the shank, wherein a wedge groove is provided in the shank, which wedge groove winds around the shank and extends alongside at least a section...