Patents by Inventor L. F. Wang

L. F. Wang 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).

  • Transmission configuration for crystal ball having shape of wind mill
    Patent number: 5134795
    Abstract: Accordingly, the chief object of the present invention is to demonstrate a more impressive change of colors from the rotation of the blade containing fluids having different colors and central gravities in addition to the dynamic presentation of the decorative item within the main portion of the crystal ball of this invention by the main portion, blade of the windmill and the doll at the peripheral of the windmill respectively driven by the planetary gear disposed within the crystal ball for the configuration of transmission of crystal ball having shape of windmill.
    Type: Grant
    Filed: August 7, 1990
    Date of Patent: August 4, 1992
    Inventor: L. F. Wang