4. Wells
  5. Valves, closures or changeable restrictors
  6. Fluid operated

Jeffrey L. Bolding

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Downhole safety valve apparatus and method

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

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Downhole safety valve apparatus and method

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

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Downhole safety valve apparatus and method

Wells – Processes – Placing or shifting well part
Reexamination Certificate

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Method and apparatus for continuously injecting fluid in a...

Wells – Valves – closures or changeable restrictors – Fluid operated
Reexamination Certificate

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Method and apparatus for fluid bypass of a well tool

Wells – Processes – Placing fluid into the formation
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2185590

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