ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,454,737, issued on Oct. 28, was assigned to ArcelorMittal (Luxembourg).
"Method of forming a hot stamped coated steel product" was invented by Pascal Drillet (Rozerieulles, France), Dominique Spehner (Balan, France) and Ronald Kefferstein (Saint Mitre les Ramparts, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hot stamped coated steel product, the hot stamped coated steel product comprising: a base steel; and a coating having a thickness of including, proceeding from the base steel outwards: (a) an interdiffusion layer, (b) an intermediate layer, (c) an intermetallic layer, and (d) a superficial layer, the base steel having a composition compr...