4. Fluid handling
  5. Systems
  6. Multi-way valve unit

Richard R. Watson

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Chemical injection control system and method for multiple wells

Wells – Processes – Entraining or incorporating treating material in flowing...
Reexamination Certificate

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Dual path hydraulic coupling

Fluid handling – Systems – Flow path with serial valves and/or closures
Reexamination Certificate

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Equalizer valve and associated method for sealing a fluid flow

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

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Fluid injection system

Fluid handling – Processes
Reexamination Certificate

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High pressure wear resistant pilot valve

Fluid handling – Systems – Multi-way valve unit
Patent

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Profile ID: LFUS-PAI-P-239050

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