Patents by Inventor Stephen D. Marshall

Stephen D. Marshall 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).

  • High-security identification card obtained by thermal dye transfer
    Patent number: 4738949
    Abstract: A dye-receiving element and process for producing a high-security, monolithic identification card, the element comprising a support having thereon a dye image-receiving layer adapted to receive a thermally-transferred dye image, the dye image-receiving layer containing indicia printed thereon approximately 40-120 .mu.m in width.
    Type: Grant
    Filed: December 29, 1986
    Date of Patent: April 19, 1988
    Assignee: Eastman Kodak Company
    Inventors: Gurdip S. Sethi, Stephen D. Marshall, David E. Wenschhof