Patents by Inventor Charlie T. Tu

Charlie T. Tu 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: D340947
    Type: Grant
    Filed: August 13, 1992
    Date of Patent: November 2, 1993
    Assignee: C & T Products Corp.
    Inventor: Charlie T. Tu