Patents by Inventor Michael C. P. Chang

Michael C. P. 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).

  • Telephone handset and base combination
    Patent number: D298240
    Type: Grant
    Filed: April 25, 1985
    Date of Patent: October 25, 1988
    Assignee: Mytel International Corp.
    Inventor: Michael C. P. Chang