ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,520,917, issued on Jan. 13, was assigned to Comadur SA (Le Locle, Switzerland).

"Method for manufacturing an external component of a watch, of a fashion item or of a jewellery item" was invented by Pierry Vuille (Les Emibois, Switzerland), Jan Lintymer (Mamirolle, France), Benoit Giry (Villers-le-lac, France) and Gabriel Rittiner (Le Locle, Switzerland).

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, including depositing an inner layer on all or part of the surface of an inner face of a substrate made of a transparent material, localised ablation of the ...