US Patent Issued to Comadur on Dec. 30 for "Stone, in particular for a horological movement, and the manufacturing method thereof" (French, Swiss Inventors)

ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,508,668, issued on Dec. 30, was assigned to Comadur SA (Le Locle, Switzerland).

"Stone, in particular for a horological movement, and the manufacturing method thereof" was invented by Bruno Besutti (Charquemont, France), Sebastien Retrouvey (Chissey sur Loue, France), Benoit Giry (Neuchatel, Switzerland) and Pierry Vuille (Les Emibois, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method is for manufacturing a stone, in particular for a timepiece, from a mineral body of monocrystalline or polycrystalline type. The method includes an ablation step in which the body is subjected to a material ablation by scanning on at least one face of the...