Patents by Inventor W. John Head

W. John Head 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).

  • Compensated light sensor system
    Patent number: 4701669
    Abstract: A light sensing compensation system is provided for controlling the level of light at a workplane so that the ratio of the light at the ceiling where the sensor means is located to the level of controlled light at the workplane is maintained substantially constant as daylight entering the room varies.
    Type: Grant
    Filed: February 15, 1985
    Date of Patent: October 20, 1987
    Assignee: Honeywell Inc.
    Inventors: W. John Head, Francis M. Watson