Patents by Inventor Yun c. Pon

Yun c. Pon 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).

  • One hand operated umbrella capable of self-closing
    Patent number: 5058613
    Abstract: A one hand operated umbrella capable of self-closing, including a center shaft of outer tube and inner tube, both of which are engaged with a spring pawl, a connector with an upper link and a lower within the shaft, and a handle with a button connected with the bottom of inner tube. While pushing the button, a slider of the umbrella will be released and to push the spring pawl inward to close and shorten automatically.
    Type: Grant
    Filed: October 10, 1990
    Date of Patent: October 22, 1991
    Inventors: Tseng Su, Yun c. Pon