Patents by Inventor Wonsik Keum

Wonsik Keum 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).

  • Writing instrument clip
    Patent number: D642621
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: August 2, 2011
    Assignee: Poppin LLC
    Inventors: Wonsik Keum, Michael Shuman, Kenneth Seiff, Martin Gloeckle