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

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing

Acoustic data transmission method

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing

Acoustic data transmission method

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing

Acoustic data transmission through a drillstring

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

Acoustic system for communication in pipelines

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

Acoustic system for communication in pipelines

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing

Acoustic telemetry system with drilling noise cancellation

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing

Acoustic transmission system

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing

Acoustic transmitter and method to produce essentially longitudi

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing

Active reduction of tool borne noise in a sonic logging tool

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering

Adaptive acoustic channel equalizer & tuning method

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing

Alarm system for measurement while drilling oil wells

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing

Analog circuit for controlling acoustic transducer arrays

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

Apparatus and method for filtering signals in a logging-while-dr

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

Apparatus and method for generating electrical power in a...

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing

Apparatus and method for logging wells while drilling

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

Apparatus and method for transmitting downhole conditions to the

Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing

Apparatus for receiving downhole acoustic signals

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

Apparatus for signalling within a borehole while drilling

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

Apparatus for signalling within a borehole while drilling