ClassID:

144022

F04D13/10 - page 2 - CPC Classification

Classification description:

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

Recent Application in this class:
#301
20180131124
2018-05-10

3D-printed seals and connectors for electric submersible pumps

#302
20180100543
2018-04-12

Permanent magnet thrust bearing

#303
20180097466
2018-04-05

Backspin management for electric submersible pump

#304
20180094515
2018-04-05

Downhole pumping systems and intakes for same

#305
20180066503
2018-03-08

System and method for reservoir management using electric submersible pumps as a virtual sensor

#306
20180051700
2018-02-22

Systems and methods for sensing parameters in an ESP using multiple MEMS sensors

#307
20180051555
2018-02-22

System and method for real-time condition monitoring of an electric submersible pumping system

#308
20180045209
2018-02-15

TORQUE TRANSMITTING KEY FOR ELECTRIC SUBMERSIBLE PUMPS

#309
20180045193
2018-02-15

Sealed eccentric drive for submersible pump

#310
20180034329
2018-02-01

Permanent magnet based electric machine and method of manufacturing the same

#311
20180017066
2018-01-18

Bushing anti-rotation system and apparatus

#312
20170363088
2017-12-21

Electric submersible pump event detection

#313
20170328186
2017-11-16

Apparatus, system and method for live well artificial lift completion

#314
20170321806
2017-11-09

Mechanical seal protector for ESP seal sections

#315
20170321711
2017-11-09

ISOLATED THRUST CHAMBER FOR ESP SEAL SECTION

#316
20170321493
2017-11-09

Pinned coupling with shims for electric submersible pump

#317
20170317551
2017-11-02

Low profile pump motor lead protector

#318
20170306966
2017-10-26

Subsea process lubricated water injection pump

#319
20170306734
2017-10-26

Downhole wet gas compressor processor

#320
20170306733
2017-10-26

Fluid expansion chamber with protected bellow

#321
20170306732
2017-10-26

Automatic Y-tool

#322
20170306731
2017-10-26

Methods and apparatus for providing ESP stage sequential engagement

#323
20170292533
2017-10-12

Self-cooling electric submersible pump

#324
20170292363
2017-10-12

Condition monitoring of electric motor

#325
20170292342
2017-10-12

Bidirectional piston seals with pressure compensation

#326
20170264161
2017-09-14

Rotor section with center tube for submersible pump assembly motor

#327
20170260990
2017-09-14

Labyrinth chamber for horizontal submersible well pump assembly

#328
20170260851
2017-09-14

Reducing common mode noise with respect to telemetry equipment used for monitoring downhole parameters

#329
20170248159
2017-08-31

Anti-swirl rib system for a pump

#330
20170248157
2017-08-31

Multistage centrifugal pump with compression bulkheads

#331
20170248001
2017-08-31

Non-parting tool for use in submersible pump system

#332
20170241428
2017-08-24

Seal assembly for abrasion resistant bearing of centrifugal pump

#333
20170241424
2017-08-24

Apertures spaced around impeller bottom shroud of centrifugal pump

#334
20170241421
2017-08-24

SUBMERSIBLE DISK-TYPE PUMP FOR VISCOUS AND SOLIDS-LADEN FLUIDS HAVING HELICAL INDUCER

#335
20170211582
2017-07-27

Thrust washer and diffuser for use in a downhole electrical submersible pump

#336
20170211576
2017-07-27

Progressive vortex pump

#337
20170211366
2017-07-27

Electric submersible pump with ultrasound for solid buildup removal

#338
20170194831
2017-07-06

Electromagnetic coupling for ESP motor

#339
20170194830
2017-07-06

Electrical feedthrough for subsea submersible well pump in canister

#340
20170187177
2017-06-29

Electric submersible pump power cable termination assembly

#341
20170183948
2017-06-29

PRECONDITIONING FLOW TO AN ELECTRICAL SUBMERSIBLE PUMP

#342
20170175516
2017-06-22

State estimation and run life prediction for pumping system

#343
20170167498
2017-06-15

Electric submersible pump components

#344
20170122094
2017-05-04

Fault detection in electric submersible pumps

#345
20170107989
2017-04-20

Monitoring an electric submersible pump for failures

#346
20170101863
2017-04-13

System and method for downhole and surface measurements for an electric submersible pump

#347
20170089343
2017-03-30

Pump and method for changing the pumping capacity of a pump

#348
20170089192
2017-03-30

Submersible electrical system assessment

#349
20170077847
2017-03-16

Control sub-system and related method of controlling electric machine in fluid extraction system

#350
20170074081
2017-03-16

Fluid extraction system and related method of controlling operating speeds of electric machines thereof

#351
20170067471
2017-03-09

Apparatus and system for a thrust-absorbing horizontal surface pump assembly

#352
20170058907
2017-03-02

Load-limiting thrust bearing system and an associated method thereof

#353
20170045055
2017-02-16

ESP pump flow rate estimation and control

#354
20170037861
2017-02-09

Seal section with internal lubricant pump for electrical submersible well pump

#355
20170030171
2017-02-02

Seal configuration for ESP systems

#356
20170002944
2017-01-05

Highly reliable service port

#357
20170002823
2017-01-05

Multistage centrifugal pump with integral abrasion-resistant axial thrust bearings

#358
20160365738
2016-12-15

Battery-powered pump for removing fluids from a subterranean well

#359
20160359388
2016-12-08

Signal bypass routed through a motor of an electrical submersible pump

#360
20160356275
2016-12-08

Load-sharing bearing system and an associated method thereof

#361
20160344245
2016-11-24

ENCAPSULATED ROTOR FOR PERMANENT MAGNET SUBMERSIBLE MOTOR

#362
20160312785
2016-10-27

Circulation pump for cooling mechanical face seal of submersible well pump assembly

#363
20160312591
2016-10-27

Flexible hose for bellows pressure equalizer of electrical submersible well pump

#364
20160298631
2016-10-13

Apparatus and method for injecting a chemical to facilitate operation of a submersible well pump

#365
20160268868
2016-09-15

Low profile pump motor lead protector

#366
20160265537
2016-09-15

Submersible pump apparatus

#367
20160265341
2016-09-15

Well testing and monitoring

#368
20160265323
2016-09-15

Automatic pumping system commissioning

#369
20160245295
2016-08-25

Wear resistant material, wear resistant impeller and preparation method of wear resistant impeller

#370
20160238048
2016-08-18

Clamp device for vertical pump coupling alignment

#371
20160222984
2016-08-04

Electric submersible pump with reduced vibration

#372
20160208806
2016-07-21

Boltless electrical connector for submersible well pump

#373
20160177959
2016-06-23

Fracture-resistant self-lubricating wear surfaces

#374
20160169231
2016-06-16

Integrated motor and fluid pump

#375
20160168964
2016-06-16

Magnetic coupling unit for submersible well pumps

#376
20160168937
2016-06-16

Retrievable electrical submersible pump

#377
20160146214
2016-05-26

Nozzle-shaped slots in impeller vanes

#378
20160145984
2016-05-26

Auxiliary face seal for submersible well pump seal section

#379
20160138375
2016-05-19

Metal bellows with guide rings

#380
20160130923
2016-05-12

Electric submersible pump inverted shroud assembly

#381
20160115998
2016-04-28

Electric submersible pump assembly bearing

#382
20160097266
2016-04-07

Apparatus and method for preventing damage to a downhole pump impeller

#383
20160084254
2016-03-24

Gas lock resolution during operation of an electric submersible pump

#384
20160084069
2016-03-24

Proximity sensor system for electric submersible pumps

#385
20160076353
2016-03-17

Oil filtration system for subsea oil-filled machines

#386
20160061013
2016-03-03

Borehole reciprocating pump assembly with an air chamber acting as a hydraulic shock absorber for the pumped fluid

#387
20160047384
2016-02-18

Device for hydraulically protecting a submersible electric motor of a downhole, preferably centrifugal, pump (variants)

#388
20160047383
2016-02-18

Shim free pothead housing connection to motor of electrical submersible well pump

#389
20160040675
2016-02-11

Magnetic coupling for motor drive shaft of electrical submersible pump

#390
20160040517
2016-02-11

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

#391
20160032928
2016-02-04

Threaded connection for tandem motors of electrical submersible pump

#392
20160017701
2016-01-21

Below motor equalizer of electrical submersible pump and method for connecting

#393
20160010439
2016-01-14

Apparatus and system for sealing submersible pump assemblies

#394
20160006481
2016-01-07

Telemetry equipment for multiphase electric motor systems

#395
20150354590
2015-12-10

Diffuser vanes with pockets for submersible well pump

#396
20150354327
2015-12-10

Oil pressure regulator for electrical submersible pump motor

#397
20150354326
2015-12-10

Pump and control system for distributing fluid

#398
20150337843
2015-11-26

Below motor equalizer of electrical submersible pump and method for filling

#399
20150330412
2015-11-19

System and method for cleaning submersible motor pumps covered with suction sleeves and disposed horizontally or vertically

#400
20150330400
2015-11-19

Metal bellows seal section and method to evacuate air during filling

#401
20150330392
2015-11-19

Progressive vortex pump

#402
20150316162
2015-11-05

Pressure volume regulator

#403
20150243389
2015-08-27

Pressurized water reactor with upper vessel section providing both pressure and flow control

#404
20150226219
2015-08-13

Self-aligning and vibration damping bearings in a submersible well pump

#405
20150211550
2015-07-30

Vertical pump having discharge head with flexible element

#406
20150211527
2015-07-30

Apparatus and system for a thrust-absorbing horizontal surface pump assembly

#407
20150211526
2015-07-30

Wireless sensor system for electric submersible pump

#408
20150204336
2015-07-23

Stepped balance ring for a submersible well pump

#409
20150198171
2015-07-16

Cap for submersible pump

#410
20150192130
2015-07-09

Centrifugal multiple-impeller electric pump

#411
20150184675
2015-07-02

Threaded connection having different upper and lower threads for submersible well pump modules

#412
20150184670
2015-07-02

Threaded connectors between submersible well pump modules

#413
20150171460
2015-06-18

Electrolyte circulation in fuel cells stacks with reduced leakage current

#414
20150167686
2015-06-18

Slotted washer pad for stage impellers of submersible centrifugal well pump

#415
20150167657
2015-06-18

Pumping system for a wellbore and methods of assembling the same

#416
20150159666
2015-06-11

Spherical sleeve and bushing bearing for centrifugal pump stage

#417
20150152877
2015-06-04

Apparatus, system and method for pumping gaseous fluid

#418
20150139832
2015-05-21

Seal assembly for a downhole device

#419
20150139822
2015-05-21

Cooling devices and methods for use with electric submersible pumps

#420
20150132159
2015-05-14

Instrument subs for centrifugal well pump assemblies

#421
20150125325
2015-05-07

SPRING-ENERGIZED SEAL FOR HIGH TEMPERATURE SEALING OF POWER CABLE TO CONNECTOR

#422
20150118067
2015-04-30

Upthrust Module for Well Fluid Pump

#423
20150114662
2015-04-30

Pressure compensation for a backup well pump

#424
20150104337
2015-04-16

Multi-stage high pressure flanged pump assembly

#425
20150098843
2015-04-09

Mechanical seal with PFA bellows

#426
20150091400
2015-04-02

Low profile pump motor lead protector

#427
20150064034
2015-03-05

MODULAR INTAKE FILTER SYSTEM, APPARATUS AND METHOD

#428
20150064032
2015-03-05

Thermoelectric cooling devices on electrical submersible pump

#429
20150053414
2015-02-26

Open ended inverted shroud with dip tube for submersible pump

#430
20150037171
2015-02-05

ELECTRIC SUBMERSIBLE PUMP HAVING A PLURALITY OF MOTORS OPERATIVELY COUPLED THERETO AND METHODS OF USING

#431
20150030480
2015-01-29

Delta-shaped power cable within coiled tubing

#432
20150023822
2015-01-22

Boot seal retainer systems and methods

#433
20150023815
2015-01-22

Compliant abrasion resistant bearings for a submersible well pump

#434
20150021014
2015-01-22

Forward deployed sensing array for an electric submersible pump

#435
20150004031
2015-01-01

Compliant radial bearing for electrical submersible pump

#436
20140334953
2014-11-13

Apparatus and system for sealing submersible pump assemblies

#437
20140322038
2014-10-30

Pump Motor Protector with Redundant Shaft Seal

#438
20140300231
2014-10-09

Downhole electric submersible pumps with high rotordynamic stability margin

#439
20140271107
2014-09-18

Systems and methods for preventing damage to pump diffusers

#440
20140219825
2014-08-07

High temperature motor seal for artificial lift system

#441
20140212264
2014-07-31

System and method for fluid level sensing and control

#442
20140202681
2014-07-24

Bladder stress reducer cap

#443
20140199159
2014-07-17

Well pump system

#444
20140147310
2014-05-29

SUBMERSIBLE PUMPING SYSTEM WITH HEAT TRANSFER MECHANISM

#445
20140134013
2014-05-15

Immersion pump and method for assembling an immersion pump

#446
20140127052
2014-05-08

High temperature radial bearing for electrical submersible pump assembly

#447
20140119958
2014-05-01

Submersible pump apparatus with multiple mechanical seals and multiple reservoirs to protect the motor from infiltration of undesired fluid

#448
20140105755
2014-04-17

PROGRESSIVE CAVITY PUMP

#449
20140099211
2014-04-10

Detection of well fluid contamination in sealed fluids of well pump assemblies

#450
20140086765
2014-03-27

Apparatus for monitoring an electrical submersible pump

#451
20140079575
2014-03-20

Integrated motor bearing and rotor

#452
20140079574
2014-03-20

Adjustable locking shaft-locating device

#453
20140072416
2014-03-13

Apparatus for maintaining the operation of a geothermal production pump

#454
20140050570
2014-02-20

Apparatus, system and method for pumping gaseous fluid

#455
20140039836
2014-02-06

Monitoring, diagnosing and optimizing electric submersible pump operations

#456
20140037434
2014-02-06

Submersible pump housing with seal bleed ports

#457
20140028119
2014-01-30

Encapsulated rotor for permanent magnet submersible motor

#458
20130341033
2013-12-26

Diffuser for cable suspended dewatering pumping system

#459
20130330211
2013-12-12

System and method for direct drive pump

#460
20130315751
2013-11-28

Compact cable suspended pumping system for lubricator deployment

#461
20130266247
2013-10-10

Rotor bearing assembly

#462
20130259706
2013-10-03

Radial bearing assembly for centrifugal pump

#463
20130236341
2013-09-12

Submersible electrical well pump having nonconcentric housings

#464
20130199776
2013-08-08

Apparatus and method for preventing damage to a downhole pump impeller

#465
20130199775
2013-08-08

Monitoring Flow Past Submersible Well Pump Motor with Sail Switch

#466
20130148127
2013-06-13

Fiber optic measurement of parameters for downhole pump diffuser section

#467
20130115047
2013-05-09

Impeller vane with leading edge enhancement

#468
20130108005
2013-05-02

Pressurized water reactor with upper vessel section providing both pressure and flow control

#469
20130105156
2013-05-02

Artificial lift system for well production

#470
20130068311
2013-03-21

Through tubing pumping system with automatically deployable and retractable seal

#471
20130062050
2013-03-14

MATING UNIT ENABLING THE DEPLOYMENT OF A MODULAR ELECTRICALLY DRIVEN DEVICE IN A WELL

#472
20130058797
2013-03-07

Attenuating vibration in a submersible pump

#473
20130058777
2013-03-07

SUBMERSIBLE PUMP STAGE

#474
20130051977
2013-02-28

Adjustable vane diffuser insert for electrical submersible pump

#475
20130039782
2013-02-14

Gas separator with improved flow path efficiency

#476
20130017075
2013-01-17

Electrical submersible pump

#477
20130004346
2013-01-03

Helical driver to reduce stress in brittle bearing materials

#478
20130004344
2013-01-03

Well pump with seal section having a labyrinth flow path in a metal bellows

#479
20120328453
2012-12-27

Well pumping and control system

#480
20120328412
2012-12-27

Pump system

#481
20120325460
2012-12-27

Water well pumping and control system

#482
20120306193
2012-12-06

COMBINATION COUPLING

#483
20120301320
2012-11-29

Pump system

#484
20120299412
2012-11-29

Methods and systems for oil free low voltage conduits

#485
20120288385
2012-11-15

Diffuser bump vane profile

#486
20120283950
2012-11-08

Determination and control of wellbore fluid level, output flow, and desired pump operating speed, using a control system for a centrifugal pump disposed within the wellbore

#487
20120282120
2012-11-08

ELECTRIC CABLE, ELECTRIC MOTOR AND ELECTRIC SUBMERSIBLE PUMP

#488
20120282119
2012-11-08

Dynamic compression compensator for submersible pumps

#489
20120269614
2012-10-25

Submersible centrifugal pump for solids-laden fluid

#490
20120263610
2012-10-18

Electric submersible pump (ESP) thrust module with enhanced lubrication and temperature dissipation

#491
20120257998
2012-10-11

Runner with integral impellor pump

#492
20120257985
2012-10-11

Torque transmitting rings for sleeves in electrical submersible pumps

#493
20120251362
2012-10-04

ESP with offset laterally loaded bearings

#494
20120251308
2012-10-04

Multi-stage centrifugal pump unit

#495
20120201659
2012-08-09

Multiple motor/pump array

#496
20120195770
2012-08-02

Determination and control of wellbore fluid level, output flow, and desired pump operating speed, using a control system for a centrifugal pump disposed within the wellbore

#497
20120100014
2012-04-26

Submersible pump system

#498
20120098358
2012-04-26

Tuned bearing

#499
20120073800
2012-03-29

PUMP SHAFT BEARING SUPPORT

#500
20120063934
2012-03-15

Electrical submersible pump system having high temperature slot, end bell and phase-to-phase insulation

#501
20120063933
2012-03-15

Electrical submersible pump system having improved magnet wire leads

#502
20120063932
2012-03-15

Electrical submersible pump system having high temperature insulation materials and buffered lubricant

#503
20120063931
2012-03-15

Electrical submersible pump system having high temperature insulation materials

#504
20120057965
2012-03-08

Turbomachine with mixed-flow stage and method

#505
20120048113
2012-03-01

System and method for multiphase pump lubrication

#506
20120037354
2012-02-16

Systems and Methods for Downhole OFDM Communications

#507
20120027630
2012-02-02

Vibration method to detect onset of gas lock

#508
20120006423
2012-01-12

Water inlet unit for an amphibious pump

#509
20110300008
2011-12-08

Compact cable suspended pumping system for lubricator deployment

#510
20110297391
2011-12-08

Compact cable suspended pumping system for dewatering gas wells

#511
20110274565
2011-11-10

Modular bellows with instrumentation umbilical conduit for electrical submersible pump system

#512
20110255951
2011-10-20

Axial thrust balanced impeller for use with a downhole electrical submersible pump

#513
20110247788
2011-10-13

Systems and methods of using subsea frames as a heat exchanger in subsea boosting systems

#514
20110211979
2011-09-01

Cooling system for a multistage electric motor

#515
20110194926
2011-08-11

Submersible pump for operation in sandy environments, diffuser assembly, and related methods

#516
20110192610
2011-08-11

Subsea well intervention lubricator and method for subsea pumping

#517
20110142697
2011-06-16

Containment structure for an actuation unit for immersion pumps, particularly for compact immersion pumps to be immersed in wells

#518
20110123374
2011-05-26

Compensator assembly for submersible pump system

#519
20110106452
2011-05-05

Determination and control of wellbore fluid level, output flow, and desired pump operating speed, using a control system for a centrifugal pump disposed within the wellbore

#520
20110097223
2011-04-28

OIL FILTER FOR DOWNHOLE MOTOR

#521
20110058966
2011-03-10

Flushing system

#522
20110052432
2011-03-03

Pump with magnetic bearings

#523
20110052418
2011-03-03

SYSTEM AND METHOD FOR A WATER COOLING PUMP

#524
20110048738
2011-03-03

System and method for direct drive pump

#525
20110042101
2011-02-24

Latching mechanism for changing pump size

#526
20110036568
2011-02-17

Method and apparatus for logging a well below a submersible pump deployed on coiled tubing

#527
20110027110
2011-02-03

OIL FILTER FOR DOWNHOLE MOTOR

#528
20110027077
2011-02-03

Shaftless centrifugal pump

#529
20110027072
2011-02-03

Bypass system for purging air from a submersible pump

#530
20110017309
2011-01-27

PUMP WITH INTEGRAL CAISSON DISCHARGE

#531
20110014071
2011-01-20

Protector for electrical submersible pumps

#532
20110012473
2011-01-20

End coil tie downs

#533
20110002799
2011-01-06

Method for locking a stator lamination in a motor

#534
20100329908
2010-12-30

Heat exchanger for ESP motor

#535
20100329893
2010-12-30

External oil expansion chamber for seabed boosting ESP equipment

#536
20100284826
2010-11-11

Mini-surge cycling method for pumping liquid from a borehole to remove material in contact with the liquid

#537
20100270028
2010-10-28

SUBMERSIBLE PUMPING SYSTEMS AND METHODS FOR DEEP WELL APPLICATIONS

#538
20100247345
2010-09-30

Production tubing member with auxiliary conduit

#539
20100247335
2010-09-30

System for monitoring an electrical submersible pump

#540
20100232984
2010-09-16

Compressor Unit and Use of a Cooling Medium

#541
20100228502
2010-09-09

System and method for monitoring fluid flow through an electrical submersible pump

#542
20100221105
2010-09-02

Staged centrifugal pump apparatus for pumping a viscous fluid

#543
20100202896
2010-08-12

Pump motor protector with redundant shaft seal

#544
20100191484
2010-07-29

Electrical submersible pump rotation sensing using an XY vibration sensor

#545
20100166578
2010-07-01

Rotor bearing assembly

#546
20100156215
2010-06-24

High-temperature thermosetting polymeric materials for ESP motor applications

#547
20100150737
2010-06-17

Determination and control of wellbore fluid level, output flow, and desired pump operating speed, using a control system for a centrifugal pump disposed within the wellbore

#548
20100111711
2010-05-06

Downhole electrical submersible pump seal

#549
20100098564
2010-04-22

Self leveling dynamically stable radial bearing

#550
20100096140
2010-04-22

Gas restrictor for pump

#551
20100047089
2010-02-25

HIGH TEMPERATURE MONITORING SYSTEM FOR ESP

#552
20100034491
2010-02-11

System, method and apparatus for scale resistant radial bearing for downhole rotating tool components and assemblies

#553
20100008799
2010-01-14

Bore-hole pump

#554
20090277628
2009-11-12

Electric submersible pumping sensor device and method

#555
20090272129
2009-11-05

Method and cooling system for electric submersible pumps/motors for use in geothermal wells

#556
20090269224
2009-10-29

Submersible pumping system with heat transfer mechanism

#557
20090267435
2009-10-29

Submersible motor

#558
20090250210
2009-10-08

Device and method for gas lock detection in an electrical submersible pump assembly

#559
20090202371
2009-08-13

Pump intake for electrical submersible pump

#560
20090195117
2009-08-06

Electric submersible pump (ESP) having a motor with mechanically locked stator laminations

#561
20090180874
2009-07-16

“O” head design

#562
20090178803
2009-07-16

Method of heating sub sea ESP pumping system

#563
20090175737
2009-07-09

GROUNDWATER SAMPLING DEVICE

#564
20090169358
2009-07-02

Water lubricated line shaft bearing and lubrication system for a geothermal pump

#565
20090162223
2009-06-25

Submersible pump

#566
20090142207
2009-06-04

BOTTOM HOLE HOLLOW CORE ELECTRIC SUBMERSIBLE PUMPING SYSTEM

#567
20090091202
2009-04-09

Shrink tube encapsulated magnet wire for electrical submersible motors

#568
20090078412
2009-03-26

Circulation pump for circulating downhole fluids, and characterization apparatus of downhole fluids

#569
20090068037
2009-03-12

Hermetically sealed motor lead tube

#570
20090058221
2009-03-05

SYSTEM AND METHOD FOR PROTECTING SUBMERSIBLE MOTOR WINDING

#571
20090053080
2009-02-26

Collet adapter for a motor shroud

#572
20090053075
2009-02-26

ENHANCED COOLING FOR DOWNHOLE MOTORS

#573
20090047157
2009-02-19

Dual zone flow choke for downhole motors

#574
20090047156
2009-02-19

Insulated bearings for downhole motors

#575
20090041597
2009-02-12

Combined Seal Head and Pump Intake for Electrical Submersible Pump

#576
20090039722
2009-02-12

ESP motor design

#577
20090022609
2009-01-22

DEVICE FOR HYDROPROTECTION OF A BOREHOLE PUMP ELECTRIC MOTOR

#578
20090010783
2009-01-08

Submersible pump unit

#579
20080306892
2008-12-11

Multiphase flow meter for electrical submersible pumps using artificial neural networks

#580
20080292454
2008-11-27

System, method, and apparatus for stackable multi-stage diffuser with anti-rotation lugs

#581
20080286134
2008-11-20

SUBMERSIBLE PUMPING SYSTEMS AND METHODS FOR DEEP WELL APPLICATIONS

#582
20080199300
2008-08-21

System and method of pumping while reducing secondary flow effects

#583
20080196887
2008-08-21

Apparatus and method for active circuit protection of downhole electrical submersible pump monitoring gauges

#584
20080111434
2008-05-15

Electric motors for powering downhole tools

#585
20080101924
2008-05-01

Electrical submersible pump

#586
20080093083
2008-04-24

Gas handling in a well environment

#587
20080088189
2008-04-17

Submersible direct-current electric motor

#588
20080067116
2008-03-20

Determination and control of wellbore fluid level, output flow, and desired pump operating speed, using a control system for a centrifugal pump disposed within the wellbore

#589
20080061647
2008-03-13

Electronic Motor

#590
20080050249
2008-02-28

Progressive vortex pump

#591
20080031731
2008-02-07

Electrical submersible pump stage construction

#592
20070296291
2007-12-27

Submersible electric motor terminated for auxiliary tools

#593
20070277969
2007-12-06

Seal section for electrical submersible pump

#594
20070273225
2007-11-29

Electric Motors for Powering Downhole Tools

#595
20070267913
2007-11-22

Lifting pump for manganese nodules

#596
20070252717
2007-11-01

System and method for real-time monitoring and failure prediction of electrical submersible pumps

#597
20070224057
2007-09-27

Tandem ESP motor interconnect vent

#598
20070207046
2007-09-06

Protector for electrical submersible pumps

#599
20070160461
2007-07-12

High performance inducer

#600
20070140876
2007-06-21

Seal section oil seal for submersible pump assembly