Patents by Inventor Walter Siegenthaler

Walter Siegenthaler 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).

  • Publication number: 20090301326
    Abstract: A print roll has opposed ends and a generally cylindrical print surface, and a carbon-based thin film having an amorphous microstructure disposed on the print surface. The thin film may have multiple layers and may be applied by plasma assisted chemical vapor deposition.
    Type: Application
    Filed: December 30, 2006
    Publication date: December 10, 2009
    Inventors: George A. Barr, Franz W. Kellar, Donald G. Faulkner, Walter Siegenthaler