US Patent Issued to Comadur on July 1 for "Jewel, in particular for a horological movement, and the manufacturing method thereof" (French Inventors)

ALEXANDRIA, Va., July 3 -- United States Patent no. 12,342,910, issued on July 1, was assigned to Comadur S.A. (Le Locle, Switzerland).

"Jewel, in particular for a horological movement, and the manufacturing method thereof" was invented by Bruno Besutti (Charquemont, France), Sebastien Retrouvey (Chissey sur Loue, France) and Sebastien Midol (Sancey, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for manufacturing a jewel of the polycrystalline type, in particular for a timepiece, the jewel including, for example, poly-ruby of the type al2O3Cr or Zirconia of the type ZrO2, the method including a first step of producing a precursor, and a second step of pressing the precursor in order to form ...