Patents by Inventor Franklin P. Stone

Franklin P. Stone 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).

  • Discrete function advisory illumination
    Patent number: 4012632
    Abstract: Transparent or translucent indicia associated with controls mounted on a panel are constantly backlighted with light of a first color and are selectively illuminated with light of second color to accentuate the state of the controls. The second color light will usually be of greater intensity than the first color light and will "swamp out" the first color backlighting.
    Type: Grant
    Filed: December 18, 1975
    Date of Patent: March 15, 1977
    Assignee: United Technologies Corporation
    Inventor: Franklin P. Stone