Patents by Inventor Park Do Seon

Park Do Seon 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).

  • Collapsible golf trolley
    Patent number: 6193264
    Abstract: A collapsible golf trolley has a collapsible frame device and a bag disposed on the collapsible frame device. The collapsible frame device has an outer pipe, an inner pipe inserted in the outer pipe, a lower joint disposed on a middle portion of the outer pipe, two support frames connected to the lower joint, each support frame connected to a wheel connector, the wheel connector connected to a wheel, and two pull rods. Each pull rod is connected to a slide block of the outer pipe and the respective support frame. A rope is connected to the support frames. A releasing device is disposed on the outer pipe.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: February 27, 2001
    Inventor: Park Do Seon