4. Pumps
  5. Motor driven
  6. Electric or magnetic motor

Pradeep Dass

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Method of adapting a downhole multi-phase twin screw pump...

Wells – Processes – Assembling well part
Reexamination Certificate

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Method of running a down hole rotary pump

Pumps – Motor driven – Electric or magnetic motor
Reexamination Certificate

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Modular downhole multiphase pump

Rotary expansible chamber devices – Interengaging rotating members – Helical or herringbone
Reexamination Certificate

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Thrust bearing assembly with a stack of thrust bearing members

Bearings – Rotary bearing – Water lubricated propellor shaft or well shaft
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2329151

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