Patents by Inventor Stephan S. Groffman

Stephan S. Groffman 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).

  • Patent number: 4386121
    Abstract: A spray process for plating nickel metal or ferrous metal surfaces using a solution containing nickel ions and hypophoshite ions.
    Type: Grant
    Filed: November 5, 1981
    Date of Patent: May 31, 1983
    Assignee: Amchem Products, Inc.
    Inventors: Newton W. McCready, Stephan S. Groffman