US Patent Issued to CORNING on Sept. 29 for "Thermally tempered glass-ceramics" (American, French Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,747,181, issued on Sept. 29, was assigned to CORNING Inc. (Corning, N.Y.).

"Thermally tempered glass-ceramics" was invented by George Halsey Beall (Big Flats, N.Y.), Marie Jacqueline Monique Comte (Fontenay aux Roses, France), Charlene Marie Smith (Corning, N.Y.) and Steven Alvin Tietje (Lindley, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A thermally tempered aluminosilicate glass-ceramic composition includes a crystalline phase and a residual glass phase, wherein the two phases form a system wherein the thermal expansion curve of the system has two distinct sections diverging from an inflection point temperature in the range of about 450deg C...