Patents by Inventor James E. Batt

James E. Batt 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).

  • Patent number: 4611116
    Abstract: A device that tests the output intensity of light emitting diodes. The light emitting diode to be tested is placed in a light tight tube in which is placed a photocell. The photocell is placed so as to be in contact with the diode. When power is applied to the diode by means of a direct current source, the diode emits light which strikes the photocell. This output light changes the output resistance of the photocell and is measured by a testing circuit to see if the signal strength falls in an acceptable range.
    Type: Grant
    Filed: February 21, 1984
    Date of Patent: September 9, 1986
    Inventor: James E. Batt