ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,415,748, issued on Sept. 16, was assigned to EUROKERA S.N.C. (Chateau Thierry, France).
"Method for manufacturing a glass-ceramic article" was invented by Thibault Guedon (Paris) and Micheline Plichard (Fere en Tardenois, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "A process for the manufacture of a glass-ceramic article exhibiting properties of resistance to scratches, greasy marks, adhesion of dirt and light scattering. The glass-ceramic article includes a surface, the surface arithmetic roughness of which is between 2 micro metre and 7 micro metre and the roughness being obtained using a chemical surface treatment. The glass-ceramic articl...