4. Wells
  5. Automatic

James H. Kritzler

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Barrier orifice valve for gas lift

Wells – Processes – Producing the well
Reexamination Certificate

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Barrier orifice valve for gas lift

Wells – Processes – Producing the well
Reexamination Certificate

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Cement through side pocket mandrel

Wells – Cementing device
Reexamination Certificate

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Computer controlled gas lift system

Wells – Automatic
Patent

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Gas lift mandrel

Wells – Conduit wall or specific conduit end structure – Side entry
Reexamination Certificate

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Profile ID: LFUS-PAI-P-898328

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