Patents Represented by Attorney Alan Kirsch

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  • Autonomous data transmission apparatus
    Patent number: 5615172
    Abstract: A autonomous borehole data transmission apparatus for transmitting measurement data from measuring instruments at the downhole end of a drill string by generating pressure pulses utilizing a transducer longitudinally responsive to magnetic field pulses caused by electrical pulses corresponding to the measured downhole parameters.
    Type: Grant
    Filed: April 22, 1996
    Date of Patent: March 25, 1997
    Inventor: Oleg M. Kotlyar