4. Wells
  5. With below and above ground modification
  6. Eduction pump or plunger in well

Robert A. R. Mills

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Apparatus and method for dual-zone well production

Wells – Processes – Parallel string or multiple completion well
Patent

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Braking assembly

Brakes – Wheel – One-way brakes
Reexamination Certificate

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Ceramic hardfacing for progressing cavity pump rotors

Rotary expansible chamber devices – Non-metallic working member – cylinder or partition
Reexamination Certificate

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Downhole swivel

Pumps – Motor driven – Axial thrust balancing means for rotary pump and motor
Patent

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Drive head for downhole rotary pump

Wells – With below and above ground modification – Eduction pump or plunger in well
Patent

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Profile ID: LFUS-PAI-P-260258

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