Patents by Inventor Joseph B. Horak

Joseph B. Horak 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).

  • Silicon photosensor with optical thin film filter
    Patent number: 3996461
    Abstract: Disclosed is silicon photodiode having a multilayer thin film optical filter deposited directly on the detecting surface thereof. The multilayer filter is an interference type filter designed to limit the normal response of a silicon photodiode so that its spectral response is essentially the same as that of the human eye. The multilayer filter is applied to the diode during fabrication using low cost mass production techniques. The multilayer filter materials are very durable and provide excellent passivation and environmental protection for the diode surface.
    Type: Grant
    Filed: March 31, 1975
    Date of Patent: December 7, 1976
    Assignee: Texas Instruments Incorporated
    Inventors: Frank C. Sulzbach, Joseph B. Horak