Patents by Inventor Joe E. South

Joe E. South 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).

  • Surfactant in precoat for lithographic plates
    Patent number: 5900345
    Abstract: Improved aluminum substrates suitable for use in the production of lithographic printing plates. A surfactant surface treatment for such aluminum substrates improves the quality of radiation sensitive coatings subsequently applied to the substrate. The surfactant may be in a layer comprising a mixture of a hydrophilizing composition and a surfactant on the aluminum alloy surface; or a hydrophilizing layer comprising a hydrophilizing composition may be on the aluminum alloy surface and a surfactant layer comprising a surfactant on the hydrophilizing layer.
    Type: Grant
    Filed: October 6, 1997
    Date of Patent: May 4, 1999
    Assignee: Kodak Polychrome Graphics, LLC
    Inventors: Stephan J. W. Platzer, Joe E. South, Melinda A. Alden