Patents by Inventor Nancy Burch

Nancy Burch 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).

  • Bioclock
    Patent number: 5243568
    Abstract: An electronic circuit, which, when inserted into a clock/radio, utilizes the time-setting mechanism and the audio system of the clock/radio, and which, in conjunction with a light sensor, causes both light and sound to start at low intensity and increase gradually together to full intensity.
    Type: Grant
    Filed: February 18, 1992
    Date of Patent: September 7, 1993
    Inventors: Nancy Burch, Mark Parent