Patents by Inventor Suy-Po Chang

Suy-Po 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).

  • Pulling knob assembly for venetian blind
    Patent number: 5579819
    Abstract: A pulling knob for coupling the pulling cords of venetian blind together includes a ring shaped body secured to one of the cords and having two annular flanges oppositely extended from the side portions. A number of caps each includes an annular shoulder for engaging with the annular flange so as to be attached to the ring shaped body. The caps each includes a notch for engaging with the other cords so as to couple the cords together. The caps can be easily disengaged from the body in order to release the cords.
    Type: Grant
    Filed: September 13, 1994
    Date of Patent: December 3, 1996
    Inventors: Wen-Chung Hung, Suy-Po Chang