ALEXANDRIA, Va., April 21 -- United States Patent no. 12,606,893, issued on April 21, was assigned to ArcelorMittal (Luxembourg).

"Cold rolled and heat treated steel sheet and a method of manufacturing thereof" was invented by Jean-Marc Pipard (Vaux, France) and Artem Arlazarov (Moulins les Metz, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A cold rolled and heat treated steel sheet having a composition including the following elements: 0.1%less than equal toCarbonless than equal to0.5%, 1%less than equal toMaganesesless than equal to3.4%, 0.5%less than equal toSiliconless than equal to2.5%, 0.01%less than equal toAluminumless than equal to1.5%, 0.05%less than equal toChromiumless than equal to1%, 0...