4. Boring or penetrating the earth
  5. With signaling, indicating, testing or measuring
  6. Indicating, testing or measuring a condition of the formation

David J Smith

Attorney

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Downhole fluid spectroscopy

Radiant energy – Geological testing or irradiation – Well testing apparatus and methods
Reexamination Certificate

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Downhole measurement of formation characteristics while...

Measuring and testing – Borehole or drilling – Formation logging
Reexamination Certificate

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Methods and apparatus to form a well

Boring or penetrating the earth – With signaling – indicating – testing or measuring – Indicating – testing or measuring a condition of the formation
Reexamination Certificate

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Profile ID: LFUS-PAI-P-3317234

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