Patents by Inventor William T. Walling

William T. Walling 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).

  • Process for stripping nickel or nickel-alloy plating in a chromic acid solution
    Patent number: 4664763
    Abstract: A process for stripping a deposit comprising nickel or a nickel-iron alloy from a substrate metal which comprises immersing the substrate metal with deposit thereon into a stripping bath comprising an aqueous stripping solution comprising chromic acid, utilizing said substrate metal as either or both the anode and cathode of an electrolytic stripping cell and applying an alternating current across the electrodes for a time sufficient to strip the deposit from the substrate metal is disclosed.
    Type: Grant
    Filed: May 8, 1985
    Date of Patent: May 12, 1987
    Assignee: M&T Chemicals Inc.
    Inventors: Warren H. McMullen, William T. Walling