Patents by Inventor Keith W. Chan

Keith W. Chan 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: D313762
    Type: Grant
    Filed: May 25, 1988
    Date of Patent: January 15, 1991
    Inventors: Keith W. Chan, Yu S. Man, Eileen Pau Pui-Fun, Ivy Ma Shiu-Ping