Patents by Inventor Peter S. C. Chang

Peter S. C. 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).

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    Patent number: D343143
    Type: Grant
    Filed: March 23, 1992
    Date of Patent: January 11, 1994
    Inventor: Peter S. C. Chang