ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,533,769, issued on Jan. 27, was assigned to EUROKERA S.N.C. (Chateau-Thierry, France).
"Glass-ceramic article" was invented by Emmanuel Lecomte (Nesles la Montagne, France), Erwann Luais (Chateau-Thierry, France) and Jean-Luc Dabouineau (Nemours, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "A glass-ceramic article includes at least one substrate, such as a plate, made of glass-ceramic, the substrate having a face including a microtexturing such that the arithmetic mean surface roughness Ra, measured according to standard ISO 4287, is between 0.14 and 0.40 micro metre, and the total roughness, Rt, measured according to standard ISO 4287, is betw...