Patents by Inventor Sang Yeul Seo

Sang Yeul Seo 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).

  • Carton with handle
    Patent number: D389055
    Type: Grant
    Filed: December 26, 1996
    Date of Patent: January 13, 1998
    Inventors: Sang Yeul Seo, Han Boong Gwak
  • Carton with handle
    Patent number: D391847
    Type: Grant
    Filed: December 26, 1996
    Date of Patent: March 10, 1998
    Inventors: Sang Yeul Seo, Han Boong Gwak