ClassID:

144451

F04F13/00 - CPC Classification

Classification description:

Pressure exchangers

Recent Application in this class:
#1
20260085703
2026-03-26

CARTRIDGE SEALING AND ALIGNMENT IN A PRESSURE EXCHANGER

#2
20260070165
2026-03-12

SYSTEMS AND METHODS FOR REPAIRING FLUID HANDLING EQUIPMENT

#3
20260022711
2026-01-22

PNEUMOHYDRAULIC PRESSURE INTENSIFIER

#4
20250354569
2025-11-20

PRESSURE EXCHANGERS WITH FOULING AND PARTICLE HANDLING CAPABILITIES

#5
20250334034
2025-10-30

HYDRAULIC ENERGY TRANSFER SYSTEM WITH FLUID MIXING REDUCTION

#6
20250215861
2025-07-03

GEOTHERMAL POWER GENERATION SYSTEMS WITH PRESSURE EXCHANGERS

#7
20250207614
2025-06-26

PRESSURE EXCHANGER FLOW ADAPTER

#8
20250188957
2025-06-12

PRESSURE EXCHANGERS WITH FOULING AND PARTICLE HANDLING CAPABILITIES

#9
20250180255
2025-06-05

ARRANGEMENT FOR GENERATING HEAT AND COLD

#10
20250180041
2025-06-05

Pumping System

#11
20250066143
2025-02-27

Distribution Manifold

#12
20240344531
2024-10-17

HYDRAULIC BEARINGS AND RELATED DEVICES, ASSEMBLIES, AND METHODS

#13
20240318638
2024-09-26

ENERGY STORAGE AND RETRIEVAL SYSTEMS AND METHODS

#14
20240218886
2024-07-04

Control of a pressure exchanger system

#15
20240117820
2024-04-11

PISTONS FOR USE IN FLUID EXCHANGE DEVICES AND RELATED DEVICES, SYSTEMS, AND METHODS

#16
20240084786
2024-03-14

Energy storage and retrieval systems and methods

#17
20240077089
2024-03-07

ROTARY PRESSURE EXCHANGER

#18
20240018977
2024-01-18

Motorized pressure exchanger with a low-pressure centerbore

#19
20230375009
2023-11-23

ROTARY PRESSURE EXCHANGER

#20
20230323900
2023-10-12

MINIMIZING MIXING IN A PRESSURE EXCHANGER

#21
20230304513
2023-09-28

REDUCING CAVITATION, NOISE, AND VIBRATION IN A PRESSURE EXCHANGER

#22
20230304512
2023-09-28

CARTRIDGE SEALING AND ALIGNMENT IN A PRESSURE EXCHANGER

#23
20230304511
2023-09-28

ENHANCING EFFICIENCY IN A PRESSURE EXCHANGER

#24
20230264387
2023-08-24

STEAM UTILIZATION SYSTEM OF FACTORY PRODUCTING CONCRETE PIPE PILE

#25
20230119452
2023-04-20

Pressure exchanger inserts

#26
20230093877
2023-03-30

SOLVATION ENTROPY ENGINE

#27
20230043692
2023-02-09

Pressure exchanger

#28
20230008069
2023-01-12

Control of a pressure exchanger system

#29
20230003108
2023-01-05

HYDRAULIC ENERGY TRANSFER SYSTEM WITH FLUID MIXING REDUCTION

#30
20220412377
2022-12-29

Motorized pressure exchanger with a low-pressure centerbore

#31
20220282740
2022-09-08

Motorized pressure exchanger with a low-pressure centerbore

#32
20220235749
2022-07-28

Pressure exchanger

#33
20220221097
2022-07-14

MODULAR CONFIGURABLE WELLSITE SURFACE EQUIPMENT

#34
20220170486
2022-06-02

Pistons for use in fluid exchange devices and related devices, systems, and methods

#35
20220152555
2022-05-19

Pressure exchanger unit for saving energy in desalination plants

#36
20220090629
2022-03-24

Hydraulic bearings and related devices, assemblies, and methods

#37
20220001330
2022-01-06

Volumetric pressure exchanger with booster effect and integrated flow measurement, for a seawater desalination plant

#38
20210348627
2021-11-11

Power generation system with rotary liquid piston compressor for transcritical and supercritical compression of fluids

#39
20210293255
2021-09-23

Pumping system

#40
20210277917
2021-09-09

Systems and methods for repairing fluid handling equipment

#41
20210254636
2021-08-19

Pressure exchanger for hydraulic fracking

#42
20210246912
2021-08-12

Pressure exchanger for gas processing

#43
20210246910
2021-08-12

Pressure exchanger with flow divider in rotor duct

#44
20210207482
2021-07-08

Gas expansion device and method for expanding gas

#45
20210140292
2021-05-13

Hydraulic energy transfer system with fluid mixing reduction

#46
20210123551
2021-04-29

Modular configurable wellsite surface equipment

#47
20210071687
2021-03-11

Gas compressor with eductor assembly

#48
20210010489
2021-01-14

Fluid exchange devices and related systems, and methods

#49
20200400000
2020-12-24

Frac system with hydraulic energy transfer system

#50
20200166054
2020-05-28

Hydraulic energy transfer system with filtering system

#51
20200150698
2020-05-14

Fluid exchange devices and related systems, and methods

#52
20200149558
2020-05-14

Hybrid pressure and thermal exchanger

#53
20200149557
2020-05-14

Pistons for use in fluid exchange devices and related devices, systems, and methods

#54
20200149556
2020-05-14

Fluid exchange devices and related controls, systems, and methods

#55
20200141444
2020-05-07

System and method for hybrid hydrodynamic-hydrostatic thrust bearings

#56
20200063545
2020-02-27

Pressure exchanger low pressure flow control

#57
20200011165
2020-01-09

SYSTEM AND METHOD FOR THE USE OF PRESSURE EXCHANGE IN HYDRAULIC FRACTURING

#58
20190390576
2019-12-26

Power generation system with rotary liquid piston compressor for transcritical and supercritical compression of fluids

#59
20190293118
2019-09-26

SYSTEM AND METHOD FOR HYDROSTATIC BEARINGS

#60
20190278306
2019-09-12

Pressure exchanger manifold resonance reduction

#61
20190277110
2019-09-12

Pressure exchanger wear prevention

#62
20190271331
2019-09-05

Split stream operations with pressure exchangers

#63
20190264426
2019-08-29

Arrangement and Method for Obtaining Water from a Humid Gas Mixture

#64
20190257323
2019-08-22

Pressure exchanger with pressure ratio

#65
20190145237
2019-05-16

Pressure exchanger manifolding

#66
20190093676
2019-03-28

Elongated tank for use in injecting slurry

#67
20190072027
2019-03-07

CELL WHEEL

#68
20180347601
2018-12-06

Hydraulic energy transfer system with filtering system

#69
20180320671
2018-11-08

Liquid lifting device

#70
20180252239
2018-09-06

System and method for improved duct pressure transfer in pressure exchange system

#71
20180252206
2018-09-06

Pressure amplifier

#72
20180209254
2018-07-26

Frac system with hydraulic energy transfer system

#73
20180195370
2018-07-12

Pressure exchanger system with integral pressure balancing system

#74
20180094648
2018-04-05

System for using pressure exchanger in mud pumping application

#75
20180087364
2018-03-29

Rotary isobaric pressure exchanger system with lubrication system

#76
20180058631
2018-03-01

Split pressure vessel for two flow processing

#77
20180030968
2018-02-01

METHODS AND SYSTEMS FOR PRESSURIZING HARSH FLUIDS

#78
20180003196
2018-01-04

Fluid energizing device

#79
20170356470
2017-12-14

Hybrid pressure and thermal exchanger

#80
20170350428
2017-12-07

Pressure exchanger as choke

#81
20170335668
2017-11-23

Rotary isobaric pressure exchanger system with flush system

#82
20170306987
2017-10-26

System for integrating valves and flow manifold into housing of pressure exchanger

#83
20170306986
2017-10-26

System for using pressure exchanger in dual gradient drilling application

#84
20170298809
2017-10-19

Method and device for adjusting a charging pressure in an internal combustion engine by means of a pressure-wave supercharger

#85
20170234540
2017-08-17

Thermal and thrust management in dynamic pressure exchangers

#86
20170211464
2017-07-27

Pressure wave supercharger

#87
20170211463
2017-07-27

Pressure wave supercharger cooling system and method

#88
20170167442
2017-06-15

Device, system, and method for pressurizing and supplying fluid

#89
20170113338
2017-04-27

Portable power tool

#90
20170051762
2017-02-23

Pressure exchange system with motor system and pressure compensation system

#91
20160377096
2016-12-29

Fluid exchanger devices, pressure exchangers, and related methods

#92
20160377070
2016-12-29

Hydraulic machine arrangement

#93
20160281487
2016-09-29

System and method for offshore (topside or subsea) and onshore water reinjection for secondary recovery

#94
20160265783
2016-09-15

Variable port assemblies for wave rotors

#95
20160245526
2016-08-25

Wave rotors with temperature control features

#96
20160244343
2016-08-25

Liquid treatment apparatus

#97
20160160917
2016-06-09

Hydrodynamic bearing features

#98
20160160889
2016-06-09

Systems and methods for a common manifold with integrated hydraulic energy transfer systems

#99
20160160881
2016-06-09

INLET RAMPS FOR PRESSURE EXCHANGE DEVICES

#100
20160160849
2016-06-09

System for pump protection with a hydraulic turbocharger

#101
20160153445
2016-06-02

Gas operated booster pump

#102
20160138649
2016-05-19

System and method for hydrostatic bearings

#103
20160084269
2016-03-24

Rotor positioning system in a pressure exchange vessel

#104
20160040511
2016-02-11

Pressure exchanger system with integral pressure balancing system

#105
20160040510
2016-02-11

System and method for improved duct pressure transfer in pressure exchange system

#106
20160039054
2016-02-11

Systems and methods for repairing fluid handling equipment

#107
20160032702
2016-02-04

System and method for utilizing integrated pressure exchange manifold in hydraulic fracturing

#108
20160032691
2016-02-04

Pressure exchange system with motor system

#109
20150292310
2015-10-15

Pressure exchange system with motor system

#110
20150184678
2015-07-02

System and method for a rotor advancing tool

#111
20150184502
2015-07-02

Rotary isobaric pressure exchanger system with lubrication system

#112
20150184492
2015-07-02

Rotary isobaric pressure exchanger system with flush system

#113
20150096739
2015-04-09

Frac system with hydraulic energy transfer system

#114
20150050167
2015-02-19

Pressure exchange device

#115
20150050164
2015-02-19

Hydraulic machine, in particular hydraulic pressure exchanger

#116
20140284262
2014-09-25

Volumetric pressure exchanger for a seawater desalination plant and desalination plant

#117
20140128656
2014-05-08

Isobaric pressure exchanger controls in amine gas processing

#118
20140128655
2014-05-08

Isobaric pressure exchanger in amine gas processing

#119
20140048143
2014-02-20

Fluid exchanger devices, pressure exchangers, and related methods

#120
20130330200
2013-12-12

Cellular wheel, in particular for a pressure wave supercharger

#121
20130315818
2013-11-28

HIGH PRESSURE HYDROGEN GAS COMPRESSOR

#122
20130294944
2013-11-07

Pressure exchanger and performance adjustment method of pressure exchanger

#123
20130280038
2013-10-24

Pressure exchange noise reduction

#124
20130206734
2013-08-15

Method for producing a cellular wheel

#125
20130121850
2013-05-16

Rotary energy recovery device

#126
20120312282
2012-12-13

PRESSURE-WAVE SUPERCHARGER, AND METHOD OF OPERATING A PRESSURE-WAVE SUPERCHARGER

#127
20120257991
2012-10-11

PRESSURE EXCHANGER

#128
20120223019
2012-09-06

Liquid treatment system

#129
20120117970
2012-05-17

Hydraulic pressure transducer and hydraulic system

#130
20120114469
2012-05-10

COMPOSITE HUB FOR A PRESSURE WAVE SUPERCHARGER

#131
20120097137
2012-04-26

GAS-DYNAMIC PRESSURE WAVE MACHINE

#132
20120090718
2012-04-19

Tube body for pressure transducer

#133
20120070316
2012-03-22

PRESSURE WAVE SUPERCHARGER

#134
20120057994
2012-03-08

CELLULAR WHEEL AND METHOD FOR THE PRODUCTION THEREOF

#135
20120037131
2012-02-16

PRESSURE WAVE SUPERCHARGER

#136
20110239463
2011-10-06

Method for producing a cellular wheel

#137
20110203987
2011-08-25

Reverse osmosis system

#138
20110008182
2011-01-13

Pressure exchanger for transmitting pressure energy from a first liquid stream to a second liquid stream

#139
20100196152
2010-08-05

Rotary pressure transfer device with improved flow

#140
20100154413
2010-06-24

GAS-DYNAMIC PRESSURE WAVE MACHINE

#141
20100086420
2010-04-08

SYSTEM FOR IMPELLING A FLUID BY RECIRCULATION FROM A LOW-PRESSURE MEDIUM TO A HIGH-PRESSURE MEDIUM

#142
20100014997
2010-01-21

SPLIT-CHAMBER PRESSURE EXCHANGERS

#143
20090308796
2009-12-17

Self-reciprocating energy recovery device

#144
20090289008
2009-11-26

Liquid treatment apparatus

#145
20090185917
2009-07-23

Fluid pressure exchange mechanism and method of operating same

#146
20090180903
2009-07-16

Rotary pressure transfer device

#147
20090173676
2009-07-09

Small-volume reverse osmosis system with double-valve permeate pump

#148
20090104046
2009-04-23

ROTARY PRESSURE TRANSFER DEVICES

#149
20070212231
2007-09-13

Channel form for a rotating pressure exchanger

#150
20070137170
2007-06-21

Speed-regulated pressure exchanger

#151
20070104588
2007-05-10

Rotary pressure exchanger

#152
20060245909
2006-11-02

Rotary pressure exchanger

#153
20060124546
2006-06-15

Method and device for desalinating water while overcoming decreases in pressure

#154
20060037907
2006-02-23

Pressure exchange apparatus with dynamic sealing mechanism

#155
20060037895
2006-02-23

Pressure exchange apparatus with integral pump

#156
20060032808
2006-02-16

Pressure exchanger

#157
16306592
2021-12-14

Pressure-exchange assisted closed circuit desalination systems for continuous desalination of low energy and high recovery under fixed flow and variable pressure conditions