Patents by Inventor Ng H. Chung

Ng H. Chung 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).

  • Printing machine
    Patent number: D326472
    Type: Grant
    Filed: July 20, 1988
    Date of Patent: May 26, 1992
    Inventor: Ng H. Chung