Patents by Inventor John D. Fackler

John D. Fackler 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).

  • Antenna system with directional switching means
    Patent number: 4418351
    Abstract: An antenna system comprising a plurality of angularly disposed antennae which are selectively actuated to transmit dependent on the directional orientation of the transmitter with respect to a receiving station.
    Type: Grant
    Filed: April 13, 1981
    Date of Patent: November 29, 1983
    Inventor: John D. Fackler
  • Bias circuit for a microwave transistor power amplifier
    Patent number: 4387346
    Abstract: A microwave frequency transmitter which operates at low source voltages and which obtains a microwave frequency carrier through frequency multiplication of relatively low frequencies. The transmitter further includes transistor amplifiers which operate from an unregulated, decreasing source voltage, but are base current regulated to provide an essentially constant power output regardless of decreasing source voltage with operational time.
    Type: Grant
    Filed: December 24, 1980
    Date of Patent: June 7, 1983
    Inventor: John D. Fackler