Patents by Inventor Woo Joo Cho

Woo Joo Cho 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).

  • Cushioning sole for footwear
    Patent number: 5813141
    Abstract: A cushioning sole for footwear, which includes an air bag containing air and sponge plates and disposed within an outer sole, and midsole for enclosing the outer sole of a shoe such as sport shoes, working shoes, boots, and the like, whereby when the footwear user walks, runs, or jumps, shock from the ground to the human body can be effectively eliminated and reduced, and the footwear user can stably straighten oneself in walking posture.
    Type: Grant
    Filed: April 17, 1997
    Date of Patent: September 29, 1998
    Inventor: Woo Joo Cho