4. Pipe joints or couplings
  5. Having plural independent paths
  6. For concentric tubes or pipes

Ole S. Kvernstuen

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Downhole cable protection device

Wells – Screens – Strip or rod
Reexamination Certificate

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Flow control device for an injection pipe string

Wells – Processes – Placing fluid into the formation
Reexamination Certificate

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Flow control device for an injection pipe string

Wells – Processes – Placing fluid into the formation
Reexamination Certificate

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Pipe coupling

Pipe joints or couplings – Having plural independent paths – For concentric tubes or pipes
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2532680

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