Patents-Review.com
ClassID:

143113 ⎘

F04B47/08 - CPC Classification

Classification description:

Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps having motor-pump units situated at great depth the motors being actuated by fluid

Sub-classes:
Recent Application in this class:
#1
20250270990
2025-08-28

Magneto-Hydraulic Plunger Pump Unit

 #2
20240328291
2024-10-03

SYSTEM, APPARATUS AND METHOD FOR ARTIFICIAL LIFT, AND IMPROVED DOWNHOLE ACTUATOR FOR SAME

 #3
20240052732
2024-02-15

HYDRAULICALLY ACTUATED DOUBLE-ACTING POSITIVE DISPLACEMENT PUMP SYSTEM FOR PRODUCING FLUIDS FROM A WELLBORE

 #4
20230250713
2023-08-10

Rodless pump and multi-sealing hydraulic sub artificial lift system

 #5
20230160286
2023-05-25

Oil circulation in an electric submersible pump (ESP) electric motor

 #6
20220307489
2022-09-29

System for subsea pressure booster power supply and distribution, method for operation and use thereof

 #7
20220307355
2022-09-29

System, apparatus and method for artificial lift, and improved downhole actuator for same

 #8
20220145847
2022-05-12

Fluid-driven linear motor

 #9
20210340972
2021-11-04

HYDRAULIC PUMPING SYSTEM WITH PISTON DISPLACEMENT SENSING AND CONTROL

 #10
20210246894
2021-08-12

DOWNHOLE WELL PUMP ASSEMBLY

 #11
20210071510
2021-03-11

Inverted closed bellows with lubricated guide ring support

 #12
20200284475
2020-09-10

Jet pump apparatus and methods for standing column well systems and deployment thereof

 #13
20200248680
2020-08-06

DOUBLE HYDRAULIC ACTIVATED RECEPTACLE PUMP

 #14
20200224652
2020-07-16

Hydraulic pumping system

 #15
20200072226
2020-03-05

Helico-Axial Submersible Pump

 #16
20190195059
2019-06-27

Modular subsurface lift engine

 #17
20190120031
2019-04-25

MULTI-FLUID, HIGH PRESSURE, MODULAR PUMP

 #18
20180363432
2018-12-20

System, apparatus and method for artificial lift, and improved downhole actuator for same

 #19
20180347327
2018-12-06

Lift apparatus for driving a downhole reciprocating pump

 #20
20180230990
2018-08-16

Downhole pump system

 #21
20180209413
2018-07-26

HYDRAULIC ACTUATOR WITH PRESSURE-BASED PISTON POSITION FEEDBACK

 #22
20180195506
2018-07-12

Pump system

 #23
20180187673
2018-07-05

SELF-RECIPROCATING HYDRAULIC LINEAR ACTUATOR

 #24
20180156015
2018-06-07

Hydraulically actuated double-acting positive displacement pump system for producing fluids from a deviated wellbore

 #25
20180135620
2018-05-17

Hydraulic artificial lift for driving downhole pumps

 #26
20170306714
2017-10-26

Wireline operated dump bailer and method for unloading of material in a well

 #27
20170037715
2017-02-09

Hydraulic pumping system with detection of fluid in gas volume

 #28
20170037714
2017-02-09

Hydraulic pumping system with piston displacement sensing and control

 #29
20170037713
2017-02-09

Slant mounted hydraulic pumping system

 #30
20160369610
2016-12-22

Subsea technique for promoting fluid flow

 #31
20160186739
2016-06-30

COAXIAL PUMPING APPARATUS WITH INTERNAL POWER FLUID COLUMN

 #32
20160130920
2016-05-12

Downhole pumping apparatus and method

 #33
20160102536
2016-04-14

Hydraulically actuated downhole pump with traveling valve

 #34
20150300330
2015-10-22

Reciprocating pumps for downhole deliquification systems and pistons for reciprocating pumps

 #35
20150300138
2015-10-22

Reciprocating pumps for downhole deliquification systems and fluid distribution systems for actuating reciprocating pumps

 #36
20150226208
2015-08-13

SYSTEM FOR OPERATING A HYDRAULICALLY-POWERED SUBMERSIBLE PUMP

 #37
20130323086
2013-12-05

Hydraulic gravity ram pump

 #38
20130287597
2013-10-31

Coaxial pumping apparatus with internal power fluid column

 #39
20130243613
2013-09-19

Coaxial pumping apparatus with internal power fluid column

 #40
20130180704
2013-07-18

Oil well pump apparatus

 #41
20130175093
2013-07-11

Apparatus and methods utilizing progressive cavity motors and pumps with independent stages

 #42
20130022480
2013-01-24

Mechanical-Hydraulic Pumping System

 #43
20120315155
2012-12-13

Hydraulic lift device

 #44
20120224977
2012-09-06

Method and Apparatus for Fluid Pumping

 #45
20120177517
2012-07-12

Valve cap

 #46
20120076668
2012-03-29

Wellbore fluid removal systems and methods

 #47
20120034113
2012-02-09

Pumping device for fluids located at the bottom of a drilled well

 #48
20110293447
2011-12-01

Hydraulically actuated reciprocating pump

 #49
20110255997
2011-10-20

Hydraulic gravity ramp pump

 #50
20110220343
2011-09-15

High flow intake system for submersible pumps

 #51
20110189030
2011-08-04

FLUID PUMP

 #52
20110187123
2011-08-04

Portable integrated power supply and HVAC unit

 #53
20110171049
2011-07-14

Steam driven pump for SAGD system

 #54
20110158824
2011-06-30

Subsea technique for promoting fluid flow

 #55
20110155384
2011-06-30

Subsea fluid separator

 #56
20110100641
2011-05-05

Downhole piston pump and method of operation

 #57
20110094501
2011-04-28

Solar pump systems and related methods

 #58
20110052417
2011-03-03

METHOD OF DRIVING A WELL PUMP

 #59
20100329902
2010-12-30

Pneumatic motorized multi-pump system

 #60
20100319529
2010-12-23

Valve Cap

 #61
20100230091
2010-09-16

Hydraulically actuated downhole pump with gas lock prevention

 #62
20090285700
2009-11-19

Low rate hydraulic artificial lift

 #63
20090260798
2009-10-22

Active mud valve system

 #64
20090041596
2009-02-12

Downhole Electric Driven Pump Unit

 #65
20080219869
2008-09-11

Coaxial pumping apparatus with internal power fluid column

 #66
20080135259
2008-06-12

Reciprocated pump system for use in oil wells

 #67
20080093361
2008-04-24

Valve cap

 #68
20080080991
2008-04-03

ELECTRICAL SUBMERSIBLE PUMP

 #69
20080063544
2008-03-13

Discharge pressure actuated pump

 #70
20080053212
2008-03-06

Flow control valve and method

 #71
20080003118
2008-01-03

Hydraulically actuated submersible pump

 #72
20070253843
2007-11-01

HYDRAULICALLY DRIVEN OIL RECOVERY SYSTEM

 #73
20070224056
2007-09-27

System and method for protecting a submersible motor

 #74
20070172364
2007-07-26

Hydraulic gravity ram pump

 #75
20070107718
2007-05-17

Solar pump systems and related methods

 #76
20070039740
2007-02-22

Method and apparatus to pump liquids from a well

 #77
20060222525
2006-10-05

Eccentric wellhead hydraulic drive unit

 #78
20060213666
2006-09-28

Hydraulically driven gas recovery device and method of use

 #79
20060171821
2006-08-03

Hydraulic pump jack sytem for reciprocating oil well sucker rods

 #80
20060153720
2006-07-13

Pump for tail production of oil

 #81
20060127226
2006-06-15

Hydraulically driven oil recovery system

 #82
20060124298
2006-06-15

Pumping water from a natural gas well

 #83
20060099093
2006-05-11

Flow control valve and method

 #84
20060083645
2006-04-20

Downhole pump

 #85
20060008364
2006-01-12

Plunger actuated pumping system

 #86
20050265874
2005-12-01

Submersible pump

 #87
20050249614
2005-11-10

Pump for evacuation of viscous liquids

 #88
20050249613
2005-11-10

Apparatus and method

 #89
20050226752
2005-10-13

Apparatus and method for reducing gas lock in downhole pumps

 #90
20050226751
2005-10-13

Water pressure system with pressure tank installed within well casing of well

 #91
20050188688
2005-09-01

Hydraulic motor arrangement and method of operating a hydraulic motor

 #92
20050169776
2005-08-04

Hydraulic gravity ram pump

 #93
20050150224
2005-07-14

Hydraulic oil well pumping installation

 #94
20050077040
2005-04-14

Water pressure system with pressure tank installed within well casing of well