Patents by Inventor William Wittke

William Wittke 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).

  • Shortened process for imparting corrosion resistance to aluminum substrates
    Publication number: 20030098091
    Abstract: A process for importing corrosion resistance to the surface for an aluminum substrate by contacting the aluminum substrate with an aqueous solution containing at least one of terafluoroboric acid, hexafluorosilisic acid, hexafluorotitanic acid, hexafluorozirconic acid, hexafluorohafnic acid and soluble, partially or totally neutralized salts and vanadate anions.
    Type: Application
    Filed: September 28, 2001
    Publication date: May 29, 2003
    Inventors: Walter N. Opdycke, William Wittke, Shawn E. Dolan, Eugene W. Sweet