# US 10,870,906 B2 · Platinum alloy > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,870,906 B2 - Document ID: US10870906B2 - Status: Granted - Kind: B2 - Application number: 16/211,268 - Filed: 2018-12-06 - Published: 2019-06-20 - Granted: 2020-12-22 - Earliest claimed: 2017-12-20 - Assignees: Omega SA - Applicants: Omega SA - Inventors: Edwina Leoni; Gregory Kissling; Denis Vincent; Stephane Lauper; Alban Dubach; Gaetan Villard - Web page: https://patentgrep.com/patent/US10870906B2 ## CPC - C22C 5/04: Alloys based on a platinum group metal - A44C 5/00: Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps {(settings for holding gems or the like A44C17/02; devices for putting-on or pulling-off bracelets A47G25/901)} - G04B 3/04: Rigidly-mounted keys, knobs or crowns {(jointed winding-stem G04B37/06)} - G04B 19/04: Hands; Discs with a single mark or the like {(moving indicating arrangements which have scales or numbers with stationary hands or reading means G04B19/20; optical projection of the position of the hands G04B19/34)} - G04B 37/22: Materials or processes of manufacturing pocket watch or wrist watch cases {(machines or tools for the manufacture of clockwork cases G04D3/0064, G04D3/0097, G04D3/029; decoration or tools therefor G04B45/0076)} - A44C 27/003: {Metallic alloys (alloys in general C22C)} - C22C: ALLOYS (treatment of alloys C21D, C22F) - A44C: PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS - G04B: MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS (spring- or weight-driven mechanisms in general F03G; electromechanical clocks or watches G04C; electromechanical clocks with attached or built-in means operating any device at pre-selected times or after predetermined time intervals G04C23/00; clocks or watches with stop devices G04F7/08) ## Abstract A nickel-free and cobalt-free platinum alloy including, expressed by weight, from 95.0% to 96.0% of Pt, from 0.5% to 4.5% of Ir, from 0.01% to 2% of Au, from 0 to 2% of Ge, and from 0 to 1% of at least one of the alloying elements Ru, Rh, Pd, Sn, Ga, Re, the respective percentages of all of the elements of the alloy adding up to 100%. ## Claims ### Claim 1 A nickel-free and cobalt-free platinum alloy, comprising, expressed by weight, the following elements: 95.0% to 96.0% of Pt, 2.2% to 4.4% of Ir 0.01% to 0.8% of Au 0.01% to 1.5% of Ge 0 to 1% of at least one of the alloying elements Ru, Rh, Pd, Sn, Ga, Re, the respective percentages of all of the elements of the alloy adding up to 100%. ### Claim 2 (depends on 1) The platinum alloy according to claim 1, comprising, expressed by weight, from 95.0% to 96.0% of Pt, from 2.9% to 4.3% of Ir, from 0.05% to 0.6% of Au, from 0.01% to 1% of Ge, and from 0 to 1% of at least one of the alloying elements Ru, Rh, Pd, Sn, Ga, Re, the respective percentages of all of the elements of the alloy adding up to 100%. ### Claim 3 (depends on 1) The platinum alloy according to claim 1, comprising, expressed by weight, from 95.0% to 96.0% of Pt, from 3.5% to 4.2% of Ir, from 0.05% to 0.6% of Au, from 0.06% to 0.5% of Ge, and from 0 to 1% of at least one of the alloying elements Ru, Rh, Pd, Sn, Ga, Re, the respective percentages of all of the elements of the alloy adding up to 100%. ### Claim 4 A timepiece or piece of jewellery comprising at least one component made from Nickel-free and cobalt-free platinum alloy, comprising, expressed by weight, the following elements: 95.0% to 96.0% of Pt, 0.5% to 4.5% of Ir 0.01% to 0.8% of Au 0.01 to 2% of Ge 0 to 1% of at least one of the alloying elements Ru, Rh, Pd, Sn, Ga, Re, the respective percentages of all of the elements of the alloy adding up to 100%. ### Claim 5 (depends on 4) The timepiece or piece of jewellery according to claim 4, wherein the at least one component is selected from the group consisting of a watch case, a dial, a bracelet or watch strap, a bracelet or watch strap clasp or buckle, a crown, an index, an applique, a hand, a jewel and an accessory. ### Claim 6 (depends on 1) A method of making a timepiece or piece of jewellery comprising applying the platinum alloy of claim 1 in the timepiece or piece of jewellery.