Patents by Inventor Frank Tsao Wen-Chung

Frank Tsao Wen-Chung 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).

  • Publication number: 20020172042
    Abstract: A night lighting fixture comprising a junction box including at least one front plate, within said junction box an electrical light source and light reflector, said fixture including a visible light detecting photocell, a first opening in said front plate for allowing external ambient light to reach said photocell, said photocell and light source being in electrical communication whereby said photocell is adapted to turn said light source off when the photocell detects ambient light and on when the photocell does not detect ambient light and another opening in said front plate to allow for the passage of light from said electrical light source to provide illumination in the external space.
    Type: Application
    Filed: August 6, 2001
    Publication date: November 21, 2002
    Inventor: Frank Tsao Wen-Chung