Patents by Inventor Ralph S. Schneebeli

Ralph S. Schneebeli 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).

  • Positive-working printing plate and method of providing a positive image therefrom using laser imaging
    Patent number: 6063544
    Abstract: A positive-working lithographic printing plate is used to provide a positive image without a post-exposure baking step and without any floodwise exposure steps. The printing plate includes an imaging layer that is imageable using an infrared radiation laser. The imaging layer consists essentially of a phenolic resin and an infrared radiation absorbing compound.
    Type: Grant
    Filed: March 21, 1997
    Date of Patent: May 16, 2000
    Assignee: Kodak Polychrome Graphics LLC
    Inventors: Eugene L. Sheriff, Ralph S. Schneebeli, Thomas R. Jordan, Neil F. Haley