ALEXANDRIA, Va., June 16 -- United States Patent no. 12,304,859, issued on May 20, was assigned to CORNING Inc. (Corning, N.Y.).
"Copper aluminoborosilicate glass and uses thereof" was invented by Philippe Lehuede (Dammarie-les-Lys, France) and Marie Comte (Fontenay aux Roses, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides an aluminoborosilicate glass of composition, expressed as percentages by weight of oxides, containing: 60% to 70% of SiO2, 13% to 20% of Al2O3, 1% to 9% of B2O3, 0 to 3% of P2O5, 0.5% to 4% of MgO, 1% to 4% of BaO, 0 to 3% of CaO, 0 to 3% of SrO, 2% to 10% of ZnO, 0 to 2% of Li2O, 0 to 2% of Na2O, 0 to 2% of K2O, 0.1% to 3% of CuO, optionally up to 1% ...