Patents-Review.com
ClassID:

143940 ⎘

F04D1/063 - CPC Classification

Classification description:

Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps; Multi-stage pumps of the vertically split casing type

Sub-classes:
Recent Application in this class:
#1
20250327452
2025-10-23

PUMP APPARATUS

 #2
20230018516
2023-01-19

Assembly structure of a multi-stage impeller and wheel housing in a submersible pump

 #3
20220341436
2022-10-27

Centrifugal pump assembly

 #4
20220163037
2022-05-26

Barrel casing pump and method for manufacturing a barrel casing pump

 #5
20220090602
2022-03-24

Balancing axial thrust in submersible well pumps

 #6
20220065266
2022-03-03

Downhole centrifugal pump diffuser with protuberant vanes and related pumps and methods

 #7
20210277907
2021-09-09

Vertical electric pump having instruments for control and monitoring the operation of the pump accessible from a single side of the pump

 #8
20210180613
2021-06-17

Pump

 #9
20200300265
2020-09-24

Downhole centrifugal pump diffuser with protuberant vanes

 #10
20200248695
2020-08-06

Balancing axial thrust in submersible well pumps

 #11
20200232467
2020-07-23

Pump with a wear ring

 #12
20200200189
2020-06-25

PUMP ASSEMBLY

 #13
20200116152
2020-04-16

Spring biased pump stage stack for submersible well pump assembly

 #14
20190339162
2019-11-07

SENSOR ASSEMBLY AND METHOD FOR FAULT DETECTION IN PUMPS AND PUMP ASSEMBLY WITH SENSOR ASSEMBLY

 #15
20190309755
2019-10-10

INVERTED ELECTRICAL SUBMERSIBLE PUMP AND PUMPING SYSTEM

 #16
20190285079
2019-09-19

Press-fit thrust bearing system and apparatus

 #17
20190285071
2019-09-19

Diffuser anti-rotation system and apparatus

 #18
20190170145
2019-06-06

Shredding assembly for a grinder pump and centrifugal grinder pump

 #19
20190055956
2019-02-21

Centrifugal turbo machinery

 #20
20190048886
2019-02-14

ANTI-GAS LOCK ELECTRIC SUBMERSIBLE PUMP

 #21
20180363636
2018-12-20

Portable alternative-energy powered pump assembly

 #22
20180291917
2018-10-11

Press-fit thrust bearing system and apparatus

 #23
20180291907
2018-10-11

Abrasion resistant inserts in centrifugal well pump stages

 #24
20180238332
2018-08-23

Centrifugal pump

 #25
20180030561
2018-02-01

Hollow element manufacturing method and rotary machine manufacturing method

 #26
20170248159
2017-08-31

Anti-swirl rib system for a pump

 #27
20170184123
2017-06-29

Non-welded suction chamber for surface pumping systems

 #28
20170167498
2017-06-15

Electric submersible pump components

 #29
20170159672
2017-06-08

Multistage pump

 #30
20160312794
2016-10-27

Plastic pump housing consisting of an inner casing, an outer casing and filling material therebetween

 #31
20160108922
2016-04-21

Multi-stage centrifugal pump

 #32
20160084253
2016-03-24

Multi-stage, self-priming centrifugal pump assembly

 #33
20150285254
2015-10-08

Barrel-type multistage pump

 #34
20150285251
2015-10-08

Pump

 #35
20150204336
2015-07-23

Stepped balance ring for a submersible well pump

 #36
20150159669
2015-06-11

Sealing arrangement and pump having a sealing arrangement

 #37
20140294575
2014-10-02

Centrifugal pump stage with increased compressive load capacity

 #38
20130236341
2013-09-12

Submersible electrical well pump having nonconcentric housings

 #39
20130183137
2013-07-18

Centrifugal pump with secondary impeller and dual outlets

 #40
20130115047
2013-05-09

Impeller vane with leading edge enhancement

 #41
20130058777
2013-03-07

SUBMERSIBLE PUMP STAGE

 #42
20130051977
2013-02-28

Adjustable vane diffuser insert for electrical submersible pump

 #43
20130045078
2013-02-21

Bearing assembly for a vertical turbine pump

 #44
20120251308
2012-10-04

Multi-stage centrifugal pump unit

 #45
20120205112
2012-08-16

High pressure multistage centrifugal pump for fracturing hydrocarbon reserves

 #46
20120171014
2012-07-05

Barrel-type multistage pump

 #47
20120057970
2012-03-08

Integrated open impeller and diffuser for use with an electrical submersible pump

 #48
20120020777
2012-01-26

DURABLE PUMPS FOR ABRASIVES

 #49
20110229308
2011-09-22

Centrifugal pump having an apparatus for the removal of particles

 #50
20110206499
2011-08-25

Double casing type pump and performance adjusting method thereof

 #51
20110058965
2011-03-10

In-line flow mixer

 #52
20110052402
2011-03-03

Fastening of the rotor of a centrifugal pump

 #53
20110050017
2011-03-03

Method and apparatus for controlling a bearing through a pressure boundary

 #54
20110044831
2011-02-24

MOTOR WITH HIGH PRESSURE RATED CAN

 #55
20110017309
2011-01-27

PUMP WITH INTEGRAL CAISSON DISCHARGE

 #56
20100232951
2010-09-16

Multi-stage centrifugal pump assembly (bearing carrier)

 #57
20100098538
2010-04-22

Casing for a fluid flow machine

 #58
20100098531
2010-04-22

MULTISTAGE PUMP ASSEMBLY

 #59
20100080686
2010-04-01

Multistage high-pressure pump

 #60
20100034650
2010-02-11

CENTRIFUGAL PUMP

 #61
20100008796
2010-01-14

Pump assembly as well as method for the modular construction of a pump assembly

 #62
20100008771
2010-01-14

Pump unit

 #63
20090246022
2009-10-01

FIRE FIGHTING PUMP AND ITS OPERATING METHODS

 #64
20090214332
2009-08-27

Multistage pump assembly having removable cartridge

 #65
20090047119
2009-02-19

SUBMERSIBLE MULTISTAGE PUMP WITH IMPELLERS HAVING DIVERGING SHROUDS

 #66
20090035159
2009-02-05

Thrust and intake chamber for pump

 #67
20080292454
2008-11-27

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

 #68
20080267773
2008-10-30

Multistage slurry pump

 #69
20080213102
2008-09-04

Fluid pump having multiple outlets for exhausting fluids having different fluid flow characteristics

 #70
20080085185
2008-04-10

Multistage pump assembly

 #71
20080075586
2008-03-27

Pump and fluid supplying apparatus

 #72
20070280825
2007-12-06

Turbine assembly

 #73
20070274828
2007-11-29

Pump and liquid supply system

 #74
20070217909
2007-09-20

Centrifugal turbomachinery

 #75
20070212238
2007-09-13

Rotodynamic Fluid Machine

 #76
20070200438
2007-08-30

Methods and apparatus for using an electrical machine to transport fluids through a pipeline

 #77
20070166178
2007-07-19

Water well pump

 #78
20060269404
2006-11-30

Multistage pump

 #79
20060269178
2006-11-30

Horizontal Centrifugal Pumping System

 #80
20060204359
2006-09-14

Abrasion resistant pump thrust bearing

 #81
20060182641
2006-08-17

Multistage sealed coolant pump

 #82
20060127232
2006-06-15

Multistage centrifugal pump

 #83
20060120904
2006-06-08

Method and apparatus for mounting pumps within a suction vessel

 #84
20060024174
2006-02-02

Pump

 #85
20060008348
2006-01-12

Turbo-type fluid machine and a stepped seal apparatus to be used therein

 #86
20050254943
2005-11-17

Pump device

 #87
20050232786
2005-10-20

Pump

 #88
20050214125
2005-09-29

Impeller lock assembly and method

 #89
20050179208
2005-08-18

Shaft sealing arrangement for a pump for delivering hot fluids

 #90
20050158165
2005-07-21

Single-shaft multistage pump

 #91
20050147505
2005-07-07

Multistage pump

 #92
20050074331
2005-04-07

Multistage pump and method of making same

 #93
20050074330
2005-04-07

Stage pump having composite components

 #94
20050047944
2005-03-03

Surface driven well pump

 #95
19217019
2025-12-02

Symmetrical radially split centrifugal multistage thrustless pump

 #96
18931222
2026-01-20

Miniature pump

 #97
15812103
2020-06-16

Multiple channel diffuser