Patents by Inventor Wen I. Hwang

Wen I. Hwang 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).

  • Patent number: 5490338
    Abstract: A fixing structure for the circuit of a lightening shoe, wherein a receiving recess is provided on the heel for receiving a transparent fixing seat which has on top thereof a box groove for receiving a transparent protecting box further for receiving the circuit, a battey receptacle provided on top of the box allows access to two battery contacting parts on the circuit, two vertical guiding grooves and two horizontal engaging grooves are provided on the wall of the receptacle for engaging two engaging pieces on a receptacle cover to removably enclose the receptacle, hence a battery therein connects the batteru contacting parts to complete the circuit, with this, changing of a battery can be done directly, the lightening circuit can be well protected and can be taken out with the protecting box easily for repairing.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: February 13, 1996
    Inventors: Wen I. Hwang, Ming C. Tsu
  • Patent number: 5396720
    Abstract: A fixing structure for the light sensitive lightening circuit of 2-stage microswitch type on a lightening shoe, wherein the shoe heel is excavated to form a receiving recess having fixing holes on the top surface and a shallow concave groove on the bottom surface thereof; a transparent fixing seat has at the top thereof lugs corresponding to the fixing holes, further at the bottom thereof a receiving groove corresponding to the shallow concave groove for receiving a lightening circuit board; the fixing seat is insertable into the receiving recess of the heel, and is formed a part of the heel by joining the lugs with the fixing holes. The circuit can be activated through the darkening of circuference, and the LEDs in the circuit can shine intermittently following another activation by the trampling action on the shoe created by walking or dancing.
    Type: Grant
    Filed: December 7, 1993
    Date of Patent: March 14, 1995
    Inventors: Wen I. Hwang, Ming C. Tsu