ALEXANDRIA, Va., July 14 -- United States Patent no. 12,680,878, issued on July 14, was assigned to ArcelorMittal (Luxembourg).

"Estimation of the temperature of a steel product" was invented by Noelle Micque (Semecourt, France), Gwenael Le Noc (Ars-sur-Moselle, France) and Morgan Ferte (Jury, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for estimating the temperature of a steel product including a calibration step wherein the intensities at 5 wavelengths ranging from 0.9 to 2.1 micro metre are recorded for several measurement condition and spectral attenuation coefficients are computed, a measurement step wherein the intensities at said 5 wavelengths are recorded and spectral attenuation c...