Patents by Inventor George Wittman

George Wittman 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).

  • Drum platen type printing machine for printing on regular and card-stock substrates
    Patent number: 5980136
    Abstract: A printing machine for printing on regular-stock type substrates and on card-stock type substrates includes a rotatable drum member having an outer surface for contacting regular-stock and card-stock type substrates; a first path for moving and printing on regular-stock type substrates, the first path including a curved portion defined by the outer surface of the rotatable drum member, and a first printing station; and a second path for moving and printing on card-stock type substrates, the second path being substantially straight and including a second printing station separate from the first printing station.
    Type: Grant
    Filed: April 23, 1998
    Date of Patent: November 9, 1999
    Assignee: Xerox Corporation
    Inventors: Roger G. Teumer, George Wittman