ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,459,847, issued on Nov. 4, was assigned to Schott AG (Mainz, Germany).
"Glass ceramic and method for producing a glass ceramic" was invented by Olaf ClauBen (Undenheim, Germany), Steffen Grun (Wallhausen, Germany), Thomas Lifka (Mainz-Bretzenheim, Germany) and Andre Schrepfer (Frankfurt a. M., Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for producing a glass ceramic includes: providing a batch of raw materials; heating the batch of raw materials until a melt is obtained, the batch of raw materials being heated at least in a plurality of sections to a temperature above T3 which corresponds to a viscosity of a molten glass of 103 dPa*s;...