Patents by Inventor David M. Shepherd

David M. Shepherd 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).

  • Instrument panel magnification system
    Patent number: 4865419
    Abstract: A Fresnel lens operatively affixed proximate the transparent faceplate which covers the cluster of gauges disposed on an automotive instrument panel for magnifying the digital or analog information displayed by those gauges.
    Type: Grant
    Filed: June 24, 1988
    Date of Patent: September 12, 1989
    Inventor: David M. Shepherd