Patents-Review.com
ClassID:

143115 ⎘

F04B47/12 - CPC Classification

Classification description:

Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps having free plunger lifting the fluid to the surface

Recent Application in this class:
#1
20260146516
2026-05-28

PLUNGER WITH PLUNGER BALL RETENTION MECHANISM FOR PLUNGER LIFT APPLICATIONS

 #2
20260055686
2026-02-26

UNIBODY BYPASS PLUNGER AND VALVE CAGE

 #3
20260055685
2026-02-26

IMPROVED DART AND CLUTCH ASSEMBLY

 #4
20260022694
2026-01-22

PLUNGER LIFT WITH AN ADJUSTABLE AND VARIABLE CLUTCH

 #5
20250347205
2025-11-13

PAD PLUNGER

 #6
20250327386
2025-10-23

PLUNGER LIFT LUBRICATOR

 #7
20250207579
2025-06-26

PLUNGER LIFT WITH AN ADJUSTABLE AND VARIABLE CLUTCH

 #8
20250207476
2025-06-26

CLUTCH APPARATUSES, SYSTEMS AND METHODS

 #9
20250172454
2025-05-29

SYSTEMS AND METHODS FOR REMOTE MONITORING OF OIL AND GAS PLUNGER LIFT SYSTEMS

 #10
20250172057
2025-05-29

PRODUCTION METHOD WITH A PLUNGER LIFT SYSTEM

 #11
20250092768
2025-03-20

UNIBODY BYPASS PLUNGER AND VALVE CAGE

 #12
20250075601
2025-03-06

FLEXIBLE ANVIL FOR A PLUNGER LIFT SYSTEM

 #13
20250075600
2025-03-06

MULTI-STAGE PLUNGER HYDROCARBON LIFTING

 #14
20240418054
2024-12-19

FLOW RESTRICTOR METHOD AND APPARATUS

 #15
20240344436
2024-10-17

DART AND CLUTCH ASSEMBLY

 #16
20240344435
2024-10-17

DART AND CLUTCH ASSEMBLY

 #17
20240344434
2024-10-17

DART AND CLUTCH ASSEMBLY

 #18
20240337174
2024-10-10

DART AND CLUTCH ASSEMBLY

 #19
20240337173
2024-10-10

DART AND CLUTCH ASSEMBLY

 #20
20240328278
2024-10-03

Electric auto-catcher

 #21
20240183253
2024-06-06

UNIBODY BYPASS PLUNGER AND VALVE CAGE

 #22
20240159234
2024-05-16

Downhole catcher for wellbore plunger

 #23
20240159233
2024-05-16

WELLBORE LIFT SYSTEM WITH SPRING-ASSISTED PLUNGER

 #24
20240110561
2024-04-04

DOWNHOLE SUCKER ROD PUMP

 #25
20240102464
2024-03-28

CENTER ROD PLUNGER WITH CLUTCH ASSEMBLY

 #26
20240068326
2024-02-29

Clutch apparatuses, systems and methods

 #27
20230383628
2023-11-30

Multi-plunger lift control device

 #28
20230287879
2023-09-14

Multi-plunger coordinated gas lift liquid drainage system and liquid drainage method thereof

 #29
20230258169
2023-08-17

METHOD AND APPARATUS FOR DIVERTING FLOW IN A DOWNHOLE PUMP

 #30
20230175353
2023-06-08

DART AND CLUTCH ASSEMBLY

 #31
20230131997
2023-04-27

Fastening apparatus, system, and method

 #32
20230120288
2023-04-20

Unibody bypass plunger and valve cage

 #33
20230051529
2023-02-16

Bumper spring

 #34
20230029090
2023-01-26

DART AND CLUTCH ASSEMBLY

 #35
20220412339
2022-12-29

Rod rotator assembly for well pumping rod strings

 #36
20220397022
2022-12-15

Systems and methods for a bypass plunger

 #37
20220372852
2022-11-24

Methods of Increasing Efficiency of Plunger Lift Operations

 #38
20220349280
2022-11-03

Flow restrictor method and apparatus

 #39
20220299020
2022-09-22

ARTICULATED PLUNGER ROD PUMP

 #40
20220290535
2022-09-15

INTERNAL VALVE PLUNGER

 #41
20220275712
2022-09-01

Unibody bypass plunger and valve cage with sealable ports

 #42
20220145736
2022-05-12

Unibody bypass plunger and valve cage

 #43
20220112792
2022-04-14

Torpedo plunger

 #44
20220065092
2022-03-03

Gas-lift system with paired controllers

 #45
20220025746
2022-01-27

Plunger lift

 #46
20210372241
2021-12-02

Gas-charged unloading plunger

 #47
20210363865
2021-11-25

Jetting plunger for plunger lift applications

 #48
20210342295
2021-11-04

Unibody bypass plunger and valve cage

 #49
20210332814
2021-10-28

Articulated plunger rod pump

 #50
20210310480
2021-10-07

Plunger lift state estimation and optimization using acoustic data

 #51
20210301637
2021-09-30

Retrievable hydraulically actuated well pump

 #52
20210238970
2021-08-05

Well operation optimization

 #53
20210140285
2021-05-13

Internal valve plunger

 #54
20210131239
2021-05-06

Unibody bypass plunger and valve cage with sealable ports

 #55
20210079911
2021-03-18

UNIBODY SHIFT ROD PLUNGER

 #56
20210054839
2021-02-25

Lubricator for bypass plunger

 #57
20210054711
2021-02-25

Fishing neck for plunger

 #58
20210040804
2021-02-11

Ball lift sleeve and retrieval tool for oil and gas wells

 #59
20210032964
2021-02-04

Self-propelled plunger for artificial lift

 #60
20200325889
2020-10-15

Utilizing analytical models to identify wells in which to install plunger lift for improved well production

 #61
20200318466
2020-10-08

Plunger lift method

 #62
20200263688
2020-08-20

Downhole pump sand filtering snares

 #63
20200256170
2020-08-13

Unibody bypass plunger and valve cage with sealable ports

 #64
20200217178
2020-07-09

Method of conducting plunger lift operations using a sphere and sleeve plunger combination

 #65
20200200164
2020-06-25

PLUNGER LIST ASSEMBLY WITH AN IMPROVED FREE PISTON ASSEMBLY

 #66
20200199986
2020-06-25

CONTROLLED DESCENT CAGED BALL BYPASS PLUNGER

 #67
20200141214
2020-05-07

Recycle loop for a gas lift plunger

 #68
20200131892
2020-04-30

Internal valve plunger

 #69
20200116303
2020-04-16

Magnetic catch for plunger lift

 #70
20200115998
2020-04-16

Lift plungers with electrodeposited coatings, and systems and methods for producing the same

 #71
20190293063
2019-09-26

Method and system for energy recovery from a rod pump

 #72
20190277118
2019-09-12

Internal valve plunger

 #73
20190218896
2019-07-18

Unibody bypass plunger and valve cage

 #74
20190203570
2019-07-04

Unibody bypass plunger and valve cage with sealable ports

 #75
20190153831
2019-05-23

Linear electric submersible pump unit

 #76
20190153830
2019-05-23

Earphone testing

 #77
20190145404
2019-05-16

Forged flange lubricator

 #78
20190136849
2019-05-09

Plunger lift assembly with an improved free piston assembly

 #79
20190120028
2019-04-25

Plunger lift method and apparatus

 #80
20190100982
2019-04-04

Wellbore plungers with non-metallic tubing-contacting surfaces and wells including the wellbore plungers

 #81
20190085677
2019-03-21

Down-hole gas separator

 #82
20190085666
2019-03-21

Well plunger systems

 #83
20180363442
2018-12-20

Gas-lift system with paired controllers

 #84
20180334890
2018-11-22

CONTROLLED DESCENT CAGED BALL BYPASS PLUNGE

 #85
20180280834
2018-10-04

Down-hole gas separation system

 #86
20180266220
2018-09-20

Durable dart plunger

 #87
20180238321
2018-08-23

Plunger lift assembly with an improved free piston assembly

 #88
20180119692
2018-05-03

Plunger lift state estimation and optimization using acoustic data

 #89
20180112654
2018-04-26

Anti-seize Ball and Sleeve Plunger Separator Rod

 #90
20180100381
2018-04-12

Retrieval of multi-component plunger in well plunger lift system

 #91
20180003013
2018-01-04

Plunger sleeve for artificial lift systems

 #92
20170356276
2017-12-14

Bypass plungers including force dissipating elements and methods of using the same

 #93
20170306729
2017-10-26

Unitary body bypass plunger and valve cage

 #94
20170247989
2017-08-31

Plunger to Form a Liquid Ring to Seal Against Gas Bypass

 #95
20170175503
2017-06-22

METHOD OF OPERATING A PLUNGER LIFT SYSTEM USING A TRIP DELAY TIME IN THE AFTERFLOW TIME

 #96
20170159412
2017-06-08

Recycle loop for a gas lift plunger

 #97
20170107803
2017-04-20

Durable dart plunger

 #98
20170107800
2017-04-20

PLUNGER IMPACT SENSOR

 #99
20170101856
2017-04-13

Vortex plunger arrangement

 #100
20170067327
2017-03-09

Plunger lift with internal movable element

 #101
20170058651
2017-03-02

Plunger lift systems and methods

 #102
20170002634
2017-01-05

Pad plunger

 #103
20160341195
2016-11-24

Forged flange lubricator

 #104
20160245417
2016-08-25

Dart valves for bypass plungers

 #105
20160245416
2016-08-25

Clutch assembly for bypass plungers

 #106
20160245415
2016-08-25

Unibody bypass plunger with centralized helix and crimple feature

 #107
20160061012
2016-03-03

Plunger lift assembly with an improved free piston assembly

 #108
20150308241
2015-10-29

Hydraulically powered ball valve lift apparatus and method for downhole pump travelling valves

 #109
20150275870
2015-10-01

PUMPING SYSTEM FOR A WELLBORE AND METHODS OF ASSEMBLING THE SAME

 #110
20150176574
2015-06-25

Downhole motor driven reciprocating well pump

 #111
20150136389
2015-05-21

Plunger lift optimization

 #112
20140326451
2014-11-06

Vortex plunger arrangement

 #113
20140231079
2014-08-21

Velocity sensor for a plunger lift system

 #114
20140127065
2014-05-08

Single and multi-chamber wellbore pumps for fluid lifting

 #115
20140105759
2014-04-17

Linear pump and motor systems and methods

 #116
20140090830
2014-04-03

Lubricator with interchangeable ports

 #117
20120273222
2012-11-01

Dynamic seal pad plunger arrangement

 #118
20120193091
2012-08-02

Plunger lift control system arrangement

 #119
20120076668
2012-03-29

Wellbore fluid removal systems and methods

 #120
20110268586
2011-11-03

SYSTEMS AND METHODS FOR ARTIFICIALLY LIFTING A PRODUCT FROM A WELL

 #121
20110073322
2011-03-31

Gas lift plunger acceleration arrangement

 #122
20100294507
2010-11-25

Plunger lift

 #123
20100054959
2010-03-04

SYSTEMS AND METHODS FOR DRIVING A PUMPJACK

 #124
20090321083
2009-12-31

Method and apparatus for removing liquid from a gas well

 #125
20090272519
2009-11-05

Gas lift plunger assembly arrangement

 #126
20090188673
2009-07-30

Plunger lift system for well

 #127
20090126935
2009-05-21

Gas lift plunger arrangement

 #128
20080185141
2008-08-07

Plunger lift system with seal and ball detent arrangement

 #129
20070151738
2007-07-05

Slidable sleeve plunger

 #130
20060249284
2006-11-09

Liquid aeration plunger

 #131
20060231247
2006-10-19

Production Plunger

 #132
20060185853
2006-08-24

Gas lift plunger arrangement

 #133
20060124292
2006-06-15

Internal shock absorber plunger

 #134
20060113072
2006-06-01

Wellbore pump

 #135
20060108126
2006-05-25

Gas-pressurized lubricator and method

 #136
20060065390
2006-03-30

Plunger lift system

 #137
20050161223
2005-07-28

Flying valve and well production method

 #138
18591833
2025-04-22

Lubricator for bypass plunger

 #139
18425364
2025-09-23

Pad plunger

 #140
17880953
2023-04-25

Vertical water pumping system

 #141
17474230
2023-01-03

Tapered multistage plunger lift with bypass sleeve

 #142
14805305
2019-01-22

Sand diverting valve rod guide