Patents by Inventor Stephen E. Tanner

Stephen E. Tanner 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).

  • Selective color illumination device for electronic drafting tables
    Patent number: 4490777
    Abstract: A multiple light device for the illumination of bicolored translucent self adhesive tape drawings, principally used in electronic circuit drafting, which through the principal of selective absorption highlights the contrast and or color difference between the two tapes.
    Type: Grant
    Filed: June 25, 1981
    Date of Patent: December 25, 1984
    Inventors: Stephen E. Tanner, Eugene J. Tanner