LandOfFree - US Patents - Listing for Communications, electrical: acoustic wave systems and devices,Wellbore telemetering,Through well fluids

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through well fluids

Process and device for transmitting information over a distance

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through well fluids

Pulse production and control in drill strings

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through well fluids

Pulser

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through well fluids

Reciprocating pulser for mud pulse telemetry

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through well fluids

Rotary acting shear valve for drilling fluid telemetry systems

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through well fluids

Rotational pulsation system and method for communicating

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through well fluids

Self-adjusting valve actuator

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through well fluids

Semi-passive two way borehole communication apparatus and...

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through well fluids

Servo valve for well-logging telemetry

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through well fluids

Servo-driven mud pulser

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through well fluids

Signal pressure pulse generator

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through well fluids

Signal pressure pulse generator

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through well fluids

Signal transmitters

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through well fluids

Sinusoidal pressure pulse generator for measurement while drilli

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through well fluids

Snap action rotary pulser

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through well fluids

Stepper motor driven negative pressure pulse generator

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through well fluids

System and methods of communicating over noisy communication...

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through well fluids

Systems, apparatus and methods for measuring while drilling

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through well fluids

Systems, apparatus and methods for measuring while drilling