ClassID:

144118

F04D25/0686 - CPC Classification

Classification description:

Pumping installations or systems; Units comprising pumps and their driving means the pump being electrically driven specially adapted for submerged use

Recent Application in this class:
#1
20250361794
2025-11-27

MILLING AND DEBRIS COLLECTING WITH MULTIPHASE VACUUM PUMP

#2
20250305517
2025-10-02

FLUID PUMP ASSEMBLIES AND KITS, AND RELATED METHODS

#3
20250198419
2025-06-19

ELECTRIC SUBMERSIBLE PUMP (ESP) ASSEMBLY SHAFT COUPLING WITH AXIAL LOAD HANDLING CAPABILITY

#4
20250043793
2025-02-06

PUMP FOR IMMERSION WITHIN A FLUID RESERVOIR

#5
20250027504
2025-01-23

ELECTRICAL SUBMERSIBLE MOTOR PROTECTING SYSTEM AND METHOD WITH CHEMICAL CHAMBER

#6
20230366413
2023-11-16

Fluid pump assemblies and kits, and related methods

#7
20230304504
2023-09-28

Electric submersible pump (ESP) assembly shaft coupling with axial load handling capability

#8
20230228273
2023-07-20

PUMP FOR IMMERSION WITHIN A FLUID RESERVOIR

#9
20230184071
2023-06-15

Dynamic power optimization system and method for electric submersible motors

#10
20230128922
2023-04-27

System and method for a mechanical shaft lock on an electric submersible pump

#11
20230107601
2023-04-06

Modularized subsea compressor train and method of installation

#12
20220381252
2022-12-01

PUMP FOR IMMERSION WITHIN A FLUID RESERVOIR

#13
20220341429
2022-10-27

MECHANICAL BARRIER FLUID PRESSURE REGULATION FOR SUBSEA SYSTEMS

#14
20220341300
2022-10-27

Dynamic power optimization system and method for electric submersible motors

#15
20220282602
2022-09-08

SUBMERSIBLE WELL FLUID SYSTEM

#16
20220268288
2022-08-25

Pump for immersion within a fluid reservoir

#17
20220148761
2022-05-12

SYSTEMS AND METHODS FOR BALANCING UNBALANCED POWER CABLES

#18
20220136636
2022-05-05

System for dewatering a flowline including a multiphase pump connected at a lower end of the flowline

#19
20210372471
2021-12-02

Hybrid magnetic radial bearing in an electric submersible pump (ESP) assembly

#20
20210246903
2021-08-12

Electrical submersible pump with liquid-gas homogenizer

#21
20210222529
2021-07-22

Processes for increasing hydrocarbon production

#22
20210148202
2021-05-20

ELECTRICAL SUBMERSIBLE PUMP WITH GAS VENTING SYSTEM

#23
20210140289
2021-05-13

Dynamic power optimization system and method for electric submersible motors

#24
20210079772
2021-03-18

Flow through magnetic drive system for artificial lift

#25
20210040826
2021-02-11

Balancing axial thrust in submersible well pumps

#26
20210010355
2021-01-14

ELECTRIC SUBMERSIBLE PUMPING UNIT

#27
20200408217
2020-12-31

PUMP FOR IMMERSION WITHIN A FLUID RESERVOIR

#28
20200400151
2020-12-24

Activity pool axial flow pump

#29
20200248538
2020-08-06

Balancing axial thrust in submersible well pumps

#30
20200208509
2020-07-02

Controlling downhole-type rotating machines

#31
20200173264
2020-06-04

Electric submersible pumping unit

#32
20200157925
2020-05-21

Electric submersible pumping unit

#33
20200149551
2020-05-14

Fluid pump assemblies and kits, and related methods

#34
20200072030
2020-03-05

Downhole blower system with a passive magnetic radial bearing assembly

#35
20190264735
2019-08-29

Electric submersible pumping unit

#36
20190264703
2019-08-29

Electric submersible pumping unit

#37
20190264550
2019-08-29

ELECTRIC SUBMERSIBLE PUMPING UNIT

#38
20190264540
2019-08-29

Electric submersible pumping unit

#39
20190264518
2019-08-29

Electrical submersible pump with gas venting system

#40
20190195057
2019-06-27

Submersible well fluid system

#41
20190145415
2019-05-16

System for moving fluid with opposed axial forces

#42
20190077487
2019-03-14

MULTISPHERICAL SUBSEA ENCLOSURES

#43
20190072096
2019-03-07

Subsea assembly

#44
20190040863
2019-02-07

Combined pump and motor with a stator forming a cavity which houses an impeller between upper and lower diffusers with the impeller having a circumferential magnet array extending upward and downward into diffuser annular clearances

#45
20190040862
2019-02-07

Permanent magnet pump

#46
20190040718
2019-02-07

FLEXIBLE SUBSEA PRODUCTION ARRANGEMENT

#47
20190010947
2019-01-10

Drainage apparatus for a motorcompressor

#48
20180371852
2018-12-27

Volumetric compensator for electric submersible pump

#49
20180351499
2018-12-06

PARTITIONED MOTOR DRIVE APPARATUS FOR SUBSEA APPLICATIONS

#50
20180340541
2018-11-29

Pump for immersion within a fluid reservoir

#51
20180306193
2018-10-25

Compressor system including gas bearing, and method of supplying gas to compressor including gas bearing

#52
20180291911
2018-10-11

Whole home water appliance system

#53
20180274345
2018-09-27

ESP SYSTEM SURFACE CONTROLS ENCLOSURE

#54
20180258940
2018-09-13

A CONTROL SYSTEM FOR CONTROLLING A SUBSEA GAS COMPRESSION SYSTEM

#55
20180231012
2018-08-16

Method of monitoring the status of a turbomachine having a casing wherein liquid may accumulate, arrangement and turbomachine

#56
20180231005
2018-08-16

Subsea barrier fluid system

#57
20180223854
2018-08-09

Fluid processing machines and fluid production systems

#58
20180216634
2018-08-02

Centrifugal pump assemblies having an axial flux electric motor and methods of assembly thereof

#59
20180209434
2018-07-26

SUBSEA CENTRIFUGAL COMPRESSOR WITH HORIZONTAL SHAFT AND WITH ONLY ONE AXIAL THRUST BEARING

#60
20180209428
2018-07-26

Motorcompressor and method to improve the efficiency of a motorcompressor

#61
20180209425
2018-07-26

Mechanical barrier fluid pressure regulation for subsea systems

#62
20180209253
2018-07-26

Omnirise hydromag “variable speed magnetic coupling system for subsea pumps”

#63
20180205337
2018-07-19

Method and a system for operating a variable speed motor

#64
20180188226
2018-07-05

Determining the phase composition of a fluid flow

#65
20180187696
2018-07-05

Casing for a turbomachine

#66
20180180057
2018-06-28

Downhole blower system with bearings and seals

#67
20180179872
2018-06-28

Downhole blower system with passive radial bearings

#68
20180179870
2018-06-28

Direct well casing deployment of downhole blower system

#69
20180179867
2018-06-28

Well optimization using downhole blower system

#70
20180179866
2018-06-28

Downhole blower system with integrated construction

#71
20180179861
2018-06-28

Integrated control of downhole and surface blower systems

#72
20180156224
2018-06-07

Subsea produced non-sales fluid handling system and method

#73
20180156223
2018-06-07

Cooling system for cooling a motorcompressor unit

#74
20180149159
2018-05-31

SUBSEA MOTOR-COMPRESSOR UNIT

#75
20180080430
2018-03-22

Integrated turbomachine with an axial locking device

#76
20180023573
2018-01-25

SUBSEA PRESSURE BOOSTER

#77
20170328369
2017-11-16

Motor compressor unit with magnetic bearings

#78
20170306733
2017-10-26

Fluid expansion chamber with protected bellow

#79
20170298955
2017-10-19

SYSTEM AND METHOD FOR RAPID PRESSURIZATION OF A MOTOR/BEARING COOLING LOOP FOR A HERMETICALLY SEALED MOTOR/COMPRESSOR SYSTEM

#80
20170284386
2017-10-05

CONDITION MONITORING DEVICE AND CONDITION MONITORING METHOD FOR EXTRACTED-GAS COMPRESSION SYSTEM, AND EXTRACTED-GAS COMPRESSION SYSTEM

#81
20170264161
2017-09-14

Rotor section with center tube for submersible pump assembly motor

#82
20170241424
2017-08-24

Apertures spaced around impeller bottom shroud of centrifugal pump

#83
20170130725
2017-05-11

Submersible pump motor housing for improving the serviceability of submersible pumps

#84
20170122332
2017-05-04

Downhole electrical submersible pump with upthrust balance

#85
20170022994
2017-01-26

Surge free subsea compressor

#86
20160333677
2016-11-17

Omnirise hydromag “variable speed magnetic coupling system for subsea pumps”

#87
20160290366
2016-10-06

Subsea compressor cleaning method wherein the cleaning liquid is retrieved from the multiphase process fluid

#88
20160237800
2016-08-18

Fluid processing system

#89
20160186776
2016-06-30

Pump for immersion within a fluid reservoir

#90
20160181964
2016-06-23

Partitioned motor drive apparatus for subsea applications

#91
20160145980
2016-05-26

Submersible well fluid system

#92
20160115998
2016-04-28

Electric submersible pump assembly bearing

#93
20160076353
2016-03-17

Oil filtration system for subsea oil-filled machines

#94
20160025106
2016-01-28

Method and system for cooling a motor-compressor with a closed-loop cooling circuit

#95
20160025085
2016-01-28

Subsea pressure compensating pump apparatus

#96
20150345265
2015-12-03

Up-thrusting fluid system

#97
20150326094
2015-11-12

Subsea compressor or pump with hermetically sealed electric motor and with magnetic coupling

#98
20150322962
2015-11-12

Method for preventing corrosion and component obtained by means of such

#99
20150322763
2015-11-12

Gas compression system

#100
20150322756
2015-11-12

Subsea multiphase pump or compressor with magnetic coupling and cooling or lubrication by liquid or gas extracted from process fluid

#101
20150322749
2015-11-12

Gas compression system

#102
20150316162
2015-11-05

Pressure volume regulator

#103
20150308459
2015-10-29

Gas takeoff isolation system

#104
20150233383
2015-08-20

PUMP DEVICE

#105
20150167682
2015-06-18

Waterproof axial flow fan

#106
20150167681
2015-06-18

Subsea compressor cleaning method wherein the cleaning liquid is retrieved from the multiphase process fluid

#107
20150167657
2015-06-18

Pumping system for a wellbore and methods of assembling the same

#108
20150159662
2015-06-11

Efficient and reliable subsea compression system

#109
20150064026
2015-03-05

Motor cooling system manifold

#110
20140369868
2014-12-18

Apparatus, system and method for reducing gas intake in horizontal submersible pump assemblies

#111
20140366723
2014-12-18

Method and a device for liquid treatment when compressing a well flow

#112
20140341706
2014-11-20

Supersonic compressor with structural arrangement to increase pressure energy in a discharge process fluid received from a centrifugal impeller

#113
20140315425
2014-10-23

Subsea high voltage terminal assembly

#114
20140271249
2014-09-18

Acoustic pumps and systems

#115
20140227119
2014-08-14

Oil Filter for Downhole Motor

#116
20140227079
2014-08-14

Midspan active magnetic bearing

#117
20140147243
2014-05-29

Contra rotating wet gas compressor

#118
20140127060
2014-05-08

Appliance pump with angled flow path and axial flow impeller

#119
20140105765
2014-04-17

Subsea compressor directly driven by a permanent magnet motor with stator and rotor submerged in liquid

#120
20140086764
2014-03-27

Subsea pressure booster

#121
20140037422
2014-02-06

System and cooling for rapid pressurization of a motor-bearing cooling loop for a hermetically sealed motor/compressor system

#122
20130183178
2013-07-18

Cooling systems for submersible pumps

#123
20130136629
2013-05-30

Subsea motor-compressor cooling system

#124
20120321438
2012-12-20

Compressor unit and a method to process a working fluid

#125
20120308408
2012-12-06

SUBSEA COMPRESSION SYSTEM FOR WELL STREAM BOOSTING

#126
20120257990
2012-10-11

Control of subsea compressors

#127
20120251351
2012-10-04

Gas Compressor Assembly

#128
20120224982
2012-09-06

Pump for immersion within a fluid reservoir

#129
20120107143
2012-05-03

Method and system for cooling a motor-compressor with a closed-loop cooling circuit

#130
20120107105
2012-05-03

Turbocompressor assembly with a cooling system

#131
20120103188
2012-05-03

Method and a device for liquid treatment when compressing a well flow

#132
20120055335
2012-03-08

DRAIN LIQUID RELIEF SYSTEM FOR A SUBSEA COMPRESSOR AND A METHOD FOR DRAINING THE SUBSEA COMPRESSOR

#133
20120018006
2012-01-26

MACHINE FOR FLUID TRANSPORTATION

#134
20110203460
2011-08-25

Device for separating and collecting fluid in gas from a reservoir

#135
20110150628
2011-06-23

FLUID ENERGY MACHINE

#136
20110116918
2011-05-19

Method and machinery with combined particle separation and flow regulation devices

#137
20110064592
2011-03-17

Underwater delivery unit

#138
20110048546
2011-03-03

Gas compression system

#139
20110008186
2011-01-13

High-pressure compression unit for process fluids for industrial plant and a related method of operation

#140
20110008184
2011-01-13

Compressor unit with pressure compensator

#141
20100322785
2010-12-23

Compressor unit including a detection device to identify non-gaseous fluid in the suction line

#142
20100303639
2010-12-02

Method for operating a compressor device and associated compressor device

#143
20100295396
2010-11-25

Separating can and method for producing the same

#144
20100290896
2010-11-18

Compressor unit and assembly method

#145
20100239441
2010-09-23

Compressor system for underwater use having a stator packet with an annular cooling chamber

#146
20100232984
2010-09-16

Compressor Unit and Use of a Cooling Medium

#147
20100014990
2010-01-21

Compressor Unit

#148
20090317265
2009-12-24

Method and apparatus for protection of compressor modules against influx of contaminated gas

#149
20090311108
2009-12-17

Method for operation of a compressor unit, and associated compressor unit

#150
20090266553
2009-10-29

Apparatus and method for preventing the penetration of seawater into a compressor module during lowering to or retrieval from the seabed

#151
20090263265
2009-10-22

Compressor Unit

#152
20090220362
2009-09-03

Compressor unit

#153
20090196764
2009-08-06

HIGH FREQUENCY ELECTRIC-DRIVE WITH MULTI-POLE MOTOR FOR GAS PIPELINE AND STORAGE COMPRESSION APPLICATIONS

#154
20090151928
2009-06-18

Electrical submersible pump and gas compressor

#155
20090050326
2009-02-26

Device and Method for Cleaning a Compressor

#156
20080260539
2008-10-23

Apparatus and Method For Controlling Supply of Barrier Gas in a Compressor Module

#157
20070196215
2007-08-23

Motor compressor

#158
20060157251
2006-07-20

Subsea compressor module and a method for controlling the pressure in such a subsea compressor module

#159
20050142004
2005-06-30

Gas seal system for the shaft of an electric compressor motor

#160
14796610
2017-06-13

Centrifugal pump impeller support system and apparatus

#161
14453770
2015-04-07

Electrical submergible pumping system using a power crossover assembly for a power supply connected to a motor

#162
13066996
2014-07-22

Submersible battery operated water pump system