ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,486,194, issued on Dec. 2, was assigned to CORNING Inc. (Corning, N.Y.).
"Colored alkali aluminosilicate glass articles" was invented by John Christopher Mauro (Boalsburg, Pa.) and Marcel Potuzak (Rejstejn, Czech Republic).
According to the abstract* released by the U.S. Patent & Trademark Office: "A glass article including at least about 40 mol % SiO2 and, optionally, a colorant imparting a preselected color is disclosed. In general, the glass includes, in mol %, from about 40-70 SiO2, 0-25 Al2O3, 0-10 B2O3; 5-35 Na2O, 0-2.5 K2O, 0-8.5 MgO, 0-2 ZnO, 0-10% P2O5 and 0-1.5 CaO. As a result of ion exchange, the glass includes a compressive stress (Sigmas) at at least one surface and, opt...