Patents by Inventor Sang- Ceol Choe

Sang- Ceol Choe 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).

  • Shoelace tightening device
    Patent number: 6370743
    Abstract: Disclosed is a shoelace tightening device.
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: April 16, 2002
    Inventor: Sang- Ceol Choe
  • SHOELACE TIGHTENING DEVICE
    Publication number: 20020013983
    Abstract: Disclosed is a shoelace tightening device.
    Type: Application
    Filed: September 29, 1999
    Publication date: February 7, 2002
    Inventor: SANG-CEOL CHOE