Patents by Inventor Tsi-Lieh Chang

Tsi-Lieh 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: D644819
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: September 13, 2011
    Inventor: Tsi-Lieh Chang