Patents by Inventor Robert H. Maxwell

Robert H. Maxwell 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).

  • High intensity discharge lamp color
    Patent number: 5828178
    Abstract: Apparatus for monitoring and controlling the operation of one or more high intensity discharge (HID) lamps. An electronic HID lamp power supply is electrically connected to a power source and to the HID lamps. For each lamp, one or more sensors produce one or more output signals respectively representative of one or more parameters (such as light intensity, color temperature, power consumption, temperature, arc voltage, etc.) which respectively define one or more operational characteristics of the lamps.
    Type: Grant
    Filed: December 9, 1996
    Date of Patent: October 27, 1998
    Assignee: TIR Systems Ltd.
    Inventors: Allan Brent York, Robert H. Maxwell