Patents by Inventor Il Yeul Lee

Il Yeul Lee 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).

  • Ratchet gear
    Patent number: D451526
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: December 4, 2001
    Assignee: Shinwoo Tech Co., Ltd.
    Inventor: Il Yeul Lee
  • Power supply device for remote controller
    Patent number: D457858
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: May 28, 2002
    Assignee: Shinwoo Tech Co., Ltd.
    Inventor: Il Yeul Lee