Patents by Inventor Il-Haeng Lee

Il-Haeng 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).

  • Connecting device for pipe
    Patent number: D831173
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: October 16, 2018
    Assignee: PPI PYUNGWHA CO., LTD.
    Inventors: Jong-Ho Lee, Hye-Jung Lee, Jong-Tae Lee, Il-Haeng Lee
  • Connecting device for pipe
    Patent number: D831174
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: October 16, 2018
    Assignee: PPI PYUNGWHA CO., LTD.
    Inventors: Jong-Ho Lee, Hye-Jung Lee, Jong-Tae Lee, Il-Haeng Lee
  • Connecting device for pipe
    Patent number: D831797
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: October 23, 2018
    Assignee: PPI PYUNGWHA CO., LTD.
    Inventors: Jong-Ho Lee, Hye-Jung Lee, Jong-Tae Lee, Il-Haeng Lee
  • Connecting device for pipe
    Patent number: D832985
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: November 6, 2018
    Assignee: PPI PYUNGWHA CO., LTD.
    Inventors: Jong-Ho Lee, Hye-Jung Lee, Jong-Tae Lee, Il-Haeng Lee