ALEXANDRIA, Va., June 10 -- United States Patent no. 12,291,484, issued on May 6, was assigned to CORNING Inc. (Corning, N.Y.).
"Ion-exchangeable mixed alkali aluminosilicate glasses" was invented by Timothy Michael Gross (Painted Post, N.Y.), Xiaoju Guo (Pittsford, N.Y.), Peter Joseph Lezzi (Corning, N.Y.), Alexandra Lai Ching Kao Andrews Mitchell (Ithaca, N.Y.) and Rostislav Vatchev Roussev (Painted Post, N.Y.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A glass composition includes from 55.0 mol % to 75.0 mol % SiO2; from 8.0 mol % to 20.0 mol % Al2O3; from 3.0 mol % to 15.0 mol % Li2O; from 5.0 mol % to 15.0 mol % Na2O; and less than or equal to 1.5 mol % K2O. The glass composition has the following re...