4. Wells
  5. Processes
  6. Operating valve, closure, or changeable restrictor in a well

David Pavel

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Apparatus and methods for utilizing a downhole deployment valve

Wells – With electrical means – Indicating
Reexamination Certificate

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Apparatus and methods for utilizing a downhole deployment valve

Wells – Processes – Operating valve – closure – or changeable restrictor in a well
Reexamination Certificate

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Apparatus for wellbore communication

Wells – Processes – Assembling well part
Reexamination Certificate

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Apparatus for wellbore communication

Boring or penetrating the earth – With signaling – indicating – testing or measuring
Reexamination Certificate

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Profile ID: LFUS-PAI-P-3087400

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