Patents by Inventor Patrick C. S. Chan

Patrick C. S. 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).

  • Diagnostic protocol and display system
    Patent number: 5577201
    Abstract: A diagnostic protocol and display system wherein the cable bus output of a computer to a printer is sensed to select coded error data out of the output stream in order to activate a visual display of coded error data for benefit of the human operator.
    Type: Grant
    Filed: September 20, 1995
    Date of Patent: November 19, 1996
    Assignee: Unisys Corporation
    Inventors: Patrick C. S. Chan, Gary C. Whitlock