Patents by Inventor Hsi-Hui Chang

Hsi-Hui Chang 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).

  • Warning device capable of emitting light
    Publication number: 20020126480
    Abstract: A warning device comprises a hollow tubular body in which a plurality of electrically-driven light emitting elements arm disposed in such a manner that the light emitting elements are controlled by an integrated circuit. In light of the radian of the pliable and light-transmitting tubular body, light emitted by the light emitting elements is so diffused as to brighten the tubular body on its entirety. The waxing device is thus made conspicuous by the tubular body.
    Type: Application
    Filed: March 7, 2001
    Publication date: September 12, 2002
    Inventor: Hsi-Hui Chang