4. Valves and valve actuation
  5. Blow-out preventers

Steven R. Hayter

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Failsafe liner installation assembly and method

Wells – Processes – Placing or shifting well part
Patent

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Failsafe liner installation assembly and method

Wells – Processes – Placing or shifting well part
Patent

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Lock for a downhole tool with a reset feature

Wells – Processes – Placing or shifting well part
Reexamination Certificate

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Manually operated blowout preventer and hydraulic operator there

Valves and valve actuation – Blow-out preventers
Patent

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Torque limiter for auger gravel pack assembly

Wells – Means for forming filter beds
Patent

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Profile ID: LFUS-PAI-P-1349928

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