Patents by Inventor Chung-Jei Chang

Chung-Jei Chang 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).

  • Patent number: D477980
    Type: Grant
    Filed: August 12, 2002
    Date of Patent: August 5, 2003
    Inventor: Chung-Jei Chang