Patents by Inventor Jean-Jacques Duprat

Jean-Jacques Duprat 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).

  • Zinc and zinc-alloy electroplating
    Patent number: 8377283
    Abstract: An apparatus (12) for applying a zinc or zinc-alloy electroplate to a workpiece comprises an electroplating bath (16) having a pH more than about 14. The electroplating bath includes zinc ions and an additive. A cathode workpiece (18) is in the bath. An anode assembly (20) contacts the bath. The anode assembly includes an anolyte and an insoluble metal anode in the anolyte. The additive is capable of electrolytically breaking down upon contact with the anode. The anode assembly inhibits the electrolytic breakdown of the additive.
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: February 19, 2013
    Assignee: Coventya, Inc.
    Inventors: William E. Eckles, Robert E. Frischauf, Frederic Raulin, Lionel Thiery, Jean-Jacques Duprat
  • Zinc and zinc-alloy electroplating
    Publication number: 20070023280
    Abstract: An apparatus (12) for applying a zinc or zinc-alloy electroplate to a workpiece comprises an electroplating bath (16) having a pH more than about 14. The electroplating bath includes zinc ions and an additive. A cathode workpiece (18) is in the bath. An anode assembly (20) contacts the bath. The anode assembly includes an anolyte and an insoluble metal anode in the anolyte. The additive is capable of electrolytically breaking down upon contact with the anode. The anode assembly inhibits the electrolytic breakdown of the additive.
    Type: Application
    Filed: June 3, 2003
    Publication date: February 1, 2007
    Inventors: William Eckles, Robert Frischauf, Frederic Raulin, Lionel Thiery, Jean-Jacques Duprat