Patents Assigned to C. HAFNER GMBH & CO. KG
  • Patent number: 10119177
    Abstract: A precious metal alloy includes palladium and rhodium for manufacturing jewelry pieces like jewelry, jewelry articles, bijouterie, watches and watch cases and/or writing utensils and/or a component thereof. The precious metal alloy used includes palladium in an amount of 40-60% by weight and rhodium in an amount of 40-60% by weight, and that the precious metal alloy used may include gold, platinum, ruthenium and/or iridium in an amount of between greater than 0 and 10% by weight, or alternatively in an amount of between 2% by weight and 5% by weight, or alternatively in an amount of 3% by weight. The corresponding amount of rhodium and/or palladium is then replaced by the aforementioned secondary alloy components, wherein the amounts of rhodium and palladium as well as of the provided aforementioned secondary alloy components complement substantially to 100% by weight.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: November 6, 2018
    Assignee: C. HAFNER GMBH & CO. KG
    Inventors: Heinz-Guenter Schenzel, Thomas Laag