4. Wells
  5. Packers or plugs
  6. Controllable passage through packer

Anthony P. Foster

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Extended range variable bore ram packer for a ram type...

Seal for a joint or juncture – Seal for well apparatus – For overpressure control device
Reexamination Certificate

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Method and system for anchoring and isolating a wellbore

Wells – Processes – Placing or shifting well part
Reexamination Certificate

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Method and system for anchoring and isolating a wellbore

Wells – Processes – Placing or shifting well part
Reexamination Certificate

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Sealing feed through lines for downhole swelling packers

Wells – Packers or plugs – Controllable passage through packer
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2234534

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