Patents by Inventor Kim Sang Do

Kim Sang Do 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).

  • Footwear sole providing ventilation, shock absorption and fashion
    Patent number: 5224277
    Abstract: A footwear sole has a waterproof ventilation part secured in the midsole or the outsole, and a horseshoe-shaped shock-absorbing heel member secured in the heel portion of the sole part in which the waterproof and ventilation part is secured. The waterproof and ventilation part includes a buoyancy plate that blocks penetration of water into the sole during bad weather. The shock-absorbing heel member has opposite flanges with an empty space therebetween that insure very good shock-absorbing properties of the shock absorbing heel member.
    Type: Grant
    Filed: April 23, 1992
    Date of Patent: July 6, 1993
    Inventor: Kim Sang Do