ALEXANDRIA, Va., June 25 -- United States Patent no. 12,337,440, issued on June 24, was assigned to Thielenhaus Technologies GmbH (Wuppertal, Germany).

"Method and device for processing a hard-coated workpiece surface of a rotationally symmetrical workpiece" was invented by Sebastian Goeke (Dortmund, Germany), Sebastian Schumann (Dortmund, Germany), Martin Lupp (Essen, Germany) and Thomas Schmitz (Wermelskirchen, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a method and a device for processing a hard-coated workpiece surface of a rotationally symmetrical workpiece (1) with at least one grinding wheel, wherein the method comprises the following steps: driving the wor...