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Downhole jet pumps

Pumps – One fluid pumped by contact or entrainment with another – Jet
Patent

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Downhole jet unit for testing and completing wells

Pumps – One fluid pumped by contact or entrainment with another – Jet
Reexamination Certificate

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Downhole oil well pump

Pumps – One fluid pumped by contact or entrainment with another – Liquid pumped by supplying or exhausting gaseous motive...
Patent

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Downhole pneumatic pump with variable bouyant actuator

Pumps – One fluid pumped by contact or entrainment with another – Liquid pumped by supplying or exhausting gaseous motive...
Patent

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Downhole pump with retrievable nozzle assembly

Pumps – One fluid pumped by contact or entrainment with another – Jet
Patent

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Downhole suction process and devices

Pumps – One fluid pumped by contact or entrainment with another – Jet pump with motive fluid generating pump
Patent

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Dryrite borehole dewatering system

Pumps – One fluid pumped by contact or entrainment with another – Jet
Patent

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Dual chamber liquid pump

Pumps – One fluid pumped by contact or entrainment with another – Liquid pumped by supplying or exhausting gaseous motive...
Reexamination Certificate

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