US Patent Issued to Comadur on June 30 for "Method for manufacturing an external component including a diffraction grating" (French, Swiss Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,667,916, issued on June 30, was assigned to Comadur SA (Le Locle, Switzerland).

"Method for manufacturing an external component including a diffraction grating" was invented by Pierry Vuille (Les Emibois, Switzerland), Benoit Giry (Villers-le-lac, France), Gabriel Rittiner (Le Locle, Switzerland) and Bastien Combotte (Grand'Combe Chateleu, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for manufacturing an external component of a watch, of a fashion item or of a jewellery item, wherein the external component includes depositing an opaque base layer on all or part of the surface of an inner face of a substrate made of a transparent materi...