Patents by Inventor Chang Bum Son

Chang Bum Son 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).

  • Mobile phone
    Patent number: D491908
    Type: Grant
    Filed: October 22, 2003
    Date of Patent: June 22, 2004
    Assignee: LG Electronics Inc.
    Inventor: Chang Bum Son