Patents by Inventor Riccardo BERTONCELLO

Riccardo BERTONCELLO has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Age-hardenable sterling silver alloy with improved “tarnishing” resistance and master alloy composition for its production
    Patent number: 10876189
    Abstract: The present invention relates to a sterling silver alloy, copper-free in its basic embodiment, age-hardenable, with improved resistance to tarnishing, thanks to the presence of palladium in combination with zinc and indium, this alloy being mainly used for the realization of precious articles; the present invention also relates to a master alloy composition suitable for the production of said sterling silver alloy.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: December 29, 2020
    Assignee: LEGOR GROUP S.P.A.
    Inventors: Riccardo Bertoncello, Massimo Poliero
  • AGE-HARDENABLE STERLING SILVER ALLOY WITH IMPROVED "TARNISHING" RESISTANCE AND MASTER ALLOY COMPOSITION FOR ITS PRODUCTION
    Publication number: 20190003015
    Abstract: The present invention relates to a sterling silver alloy, copper-free in its basic embodiment, age-hardenable, with improved resistance to tarnishing, thanks to the presence of palladium in combination with zinc and indium, this alloy being mainly used for the realization of precious articles; the present invention also relates to a master alloy composition suitable for the production of said sterling silver alloy.
    Type: Application
    Filed: July 26, 2016
    Publication date: January 3, 2019
    Inventors: Riccardo BERTONCELLO, Massimo POLIERO