4. Electricity: measuring and testing
  5. Of geophysical surface or subsurface in situ
  6. With radiant energy or nonconductive-type transmitter

Roger P. Bartel

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Directional sensor system comprising a single axis sensor...

Geometrical instruments – Indicator of direction of force traversing natural media – Borehole direction or inclination
Reexamination Certificate

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Directional sensor system comprising a single axis sensor...

Geometrical instruments – Indicator of direction of force traversing natural media – Borehole direction or inclination
Reexamination Certificate

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Electrical connector having electrically conductive elastomer co

Electrical connectors – Including elastomeric or nonmetallic conductive portion
Patent

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Logging device data dump probe

Communications: electrical – Wellbore telemetering or control – Using a specific transmission medium
Reexamination Certificate

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Method and apparatus for nuclear magnetic resonance...

Electricity: measuring and testing – Particle precession resonance – Using well logging device
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1583998

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