Patents by Inventor Chun-Li Hsu

Chun-Li Hsu 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).

  • Garden tool quick handle connector
    Patent number: 4936702
    Abstract: This invention relates generally to a garden tool quick handle connector and relates more particularly to a connection structure for quick connection of a handle to a garden tool wherein inner convex threads of the handle are conveniently arranged to engage with outer convex threads of the handle connector. A special retaining plate is movably provided to serve as a stop to maintain the handle in its engaged position with the garden tool and to protect the connection against torsional force.
    Type: Grant
    Filed: June 2, 1989
    Date of Patent: June 26, 1990
    Inventor: Chun-Li Hsu
  • Collapsable workchair
    Patent number: D354859
    Type: Grant
    Filed: October 19, 1993
    Date of Patent: January 31, 1995
    Inventor: Chun-Li Hsu