Patents by Inventor Chao Jun Wu

Chao Jun Wu 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).

  • Cleaning sheet
    Patent number: D516821
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: March 14, 2006
    Inventor: Chao Jun Wu
  • Portion of cleaning sheet
    Patent number: D532613
    Type: Grant
    Filed: December 8, 2005
    Date of Patent: November 28, 2006
    Inventor: Chao Jun Wu