ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,704,455, issued on Aug. 11, was assigned to SAINT-GOBAIN ISOVER (Courbevoie, France).
"Method for processing cullet using colorimetric analysis" was invented by Richard Clatot (Aubervilliers, France) and Isabell Gross (Aubervilliers, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for processing cullet includes detecting a plurality of types of glass contained in the cullet using colorimetry, calculating a quantity of different types of glass detected in the cullet, determining a quantity of oxide and/or a redox potential which are associated with the cullet depending on the quantity of the different types of glass detected in the cullet....