US Patent Issued to Vitro Flat Glass on March 17 for "Low iron, high redox ratio, and high iron, high redox ratio, soda-lime-silica glasses and methods of making same" (Pennsylvania, Texas Inventors)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,577,145, issued on March 17, was assigned to Vitro Flat Glass LLC (Cheswick, Pa.).

"Low iron, high redox ratio, and high iron, high redox ratio, soda-lime-silica glasses and methods of making same" was invented by Mark O. Naylor (Philadelphia), Lawrence E. Jansen (Burkburnett, Texas) and Larry J. Shelestak (Bairdford, Pa.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A glass has a basic soda-lime-silica glass portion, and a colorant portion, the colorant portion including total iron as Fe2O3 in the range of at least 0.02 to no more than 0.10 weight percent, a redox ratio in the range of 0.20 to 0.6, and tin metal providing tin in an amount within the ...