Patents by Inventor Arnold Duan

Arnold Duan 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).

  • Sandal sole
    Patent number: D618890
    Type: Grant
    Filed: December 10, 2007
    Date of Patent: July 6, 2010
    Inventor: Arnold Duan