Patents by Inventor Christian Sivertz

Christian Sivertz 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).

  • Deposition of copper
    Patent number: 3963842
    Abstract: This invention relates to processes and compositions for the deposition of metallic copper on a catalytically activated surface by the controlled disproportionation of cuprous ions. Cupric tetraammino ions in aqueous solution are rapidly reduced to cuprous diammino ions and the latter are acted upon by the addition of an activator-modifier so as to bring about controlled disproportionation resulting in the deposition of metallic copper principally on the catalytically activated surface of a workpiece.
    Type: Grant
    Filed: November 6, 1974
    Date of Patent: June 15, 1976
    Assignee: London Laboratories Limited Co.
    Inventors: Christian Sivertz, Anthony J. Basilone