ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,497,680, issued on Dec. 16, was assigned to ArcelorMittal (Luxembourg).

"Edge build-up measurement" was invented by David Sloan (Hamilton, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for controlling, on a metallic coated coil being wound, the coating thickness homogeneity, the method including the following steps of A) measuring a first distance between a first reference point and a first point on the coil surface; B) measuring a second distance between a second reference point and a second point on the coil surface the first and second points on the coil being situated at different spots along the coil width; C) computing a differenc...