Patents by Inventor Pil J. Ko

Pil J. Ko 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).

  • Patent number: D264421
    Type: Grant
    Filed: October 31, 1978
    Date of Patent: May 18, 1982
    Assignee: Office of Monopoly, Republic of Korea
    Inventor: Pil J. Ko