US Patent Issued to MONTRES BREGUET on Oct. 7 for "Timepiece, piece of jewellery or gemstone jewellery made of gold" (Swiss Inventors)

ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,435,390, issued on Oct. 7, was assigned to MONTRES BREGUET SA (L'Abbaye, Switzerland).

"Timepiece, piece of jewellery or gemstone jewellery made of gold" was invented by Denis Vincent (Neuchatel, Switzerland), Stephane Lauper (Cortaillod, Switzerland) and Gregory Kissling (La Neuveville, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A gold alloy may contain, by weight, between 73% and 77% of gold, between 5% and 11% of silver, between 1% and 7% of palladium, and between 10% and 18% of copper. The gold alloy may include iridium, rhenium, and/or ruthenium in up to 0.05 wt. %. The gold alloy may have an a* value in a range of from 3 to 9, and a...