ClassID:

143346

F04B2205/05 - CPC Classification

Classification description:

Fluid parameters Pressure after the pump outlet

Recent Application in this class:
#1
20250389267
2025-12-25

SOLENOID CONCEPT FOR PUMP CONTROL OF A VARIABLE DISPLACEMENT PISTON PUMP

#2
20250376977
2025-12-11

PUMP DRIVE SYSTEM

#3
20250369436
2025-12-04

METHOD FOR DETERMINING OPERATIONAL INFORMATION OF A METERING PUMP

#4
20250369435
2025-12-04

BOOSTER PUMP CONTROL SYSTEM

#5
20250369315
2025-12-04

Systems and Methods of Generating Electric Power With Compressed Natural Gas

#6
20250198403
2025-06-19

LIQUID FEEDING PUMP AND LIQUID FEEDING METHOD

#7
20250180028
2025-06-05

METHOD OF CONTROLLING A PUMP AND MOTOR

#8
20250152024
2025-05-15

BLOOD PRESSURE MEASUREMENT DEVICE WITH A MEMS PUMP AND CONTROL METHOD FOR THE SAME

#9
20250067259
2025-02-27

BOOSTER PUMP CONTROLLER AND METHOD OF USE

#10
20250035104
2025-01-30

SYSTEMS AND METHODS FOR CONTROLLING VEHICLE AIR COMPRESSOR

#11
20240360826
2024-10-31

INSPECTION METHOD

#12
20240360824
2024-10-31

ADAPTIVE PROGRAMMABLE PUMP

#13
20240339583
2024-10-10

Slurry transfer device and slurry transfer method using the same

#14
20240241526
2024-07-18

HIGH TURN DOWN RATIO DIRECT CONTROL FOR VARIABLE DISPLACEMENT PUMPS WITH FLOW SENSING

#15
20240240630
2024-07-18

High turn down ratio direct control for variable displacement pumps

#16
20240240629
2024-07-18

DYNAMIC COMPRESSOR CONTROLS

#17
20240200551
2024-06-20

HYDRAULIC CIRCUIT ARRANGEMENT AND CONTROL SYSTEM FOR GANGED ELECTRONICALLY-COMMUTATED PUMPS

#18
20240200550
2024-06-20

HIGH-THROUGHPUT DIAPHRAGM COMPRESSOR

#19
20240167468
2024-05-23

PUMPS IN SERIAL CONNECTION

#20
20240141882
2024-05-02

Power system

#21
20240117802
2024-04-11

Hydraulic drive for diaphragm compressor

#22
20240084791
2024-03-14

Air pump with automatic air pumping function

#23
20240026875
2024-01-25

Control of a dual-pump single-power source system

#24
20230417236
2023-12-28

Motor driven pump with prognostic health monitoring based on motor characteristics

#25
20230417235
2023-12-28

Intelligent controller for a reciprocating air compressor and methods of use thereof

#26
20230366391
2023-11-16

GAS COMPRESSOR

#27
20230332586
2023-10-19

Liquid Feeding Pump and Liquid Feeding Method

#28
20230322410
2023-10-12

HYDRAULIC STRUT SERVICING/DE-SERVICING TOOL

#29
20230258168
2023-08-17

High-throughput diaphragm compressor

#30
20230204029
2023-06-29

Variable displacement piston pump with electronic control unit to provide direct metering control

#31
20230193802
2023-06-22

Prognostic alert strategy for reductant pump in exhaust aftertreatment system for engine

#32
20230184240
2023-06-15

METHOD FOR DETERMINING A PRESENT STATE OF WEAR OF A HYDROSTATIC MACHINE

#33
20230151807
2023-05-18

METHOD FOR ACTUATING A HYDRAULIC DEVICE

#34
20230147328
2023-05-11

High-throughput diaphragm compressor

#35
20230145160
2023-05-11

High-throughput diaphragm compressor

#36
20230144628
2023-05-11

High-throughput diaphragm compressor

#37
20230125840
2023-04-27

Variable displacement pumps

#38
20230105410
2023-04-06

DEVICES, SYSTEMS, AND METHODS FOR PROVIDING AND USING ONE OR MORE PUMPS IN AN ASSEMBLY LINE GROW POD

#39
20230102332
2023-03-30

Electronic Pressure Compensated Hydraulic Motor Pump with Variable Output Power

#40
20230068188
2023-03-02

Method of controlling a pump and motor

#41
20230052785
2023-02-16

Axial piston pump controller

#42
20230039274
2023-02-09

HYDRAULIC PUMP

#43
20220412342
2022-12-29

Decompression system and decompression method

#44
20220410177
2022-12-29

Electronically controlled hydraulic decanter centrifuge

#45
20220347888
2022-11-03

System and method to auto-pressurize prior to dispense in a circulation dispense system

#46
20220307359
2022-09-29

Control method and control device applied to electric fracturing apparatus

#47
20220299022
2022-09-22

Vessel pressure testing system

#48
20220252065
2022-08-11

Fluid Machine Device

#49
20220235758
2022-07-28

Hydraulic actuator control device for dump truck

#50
20220220950
2022-07-14

PUMP DRIVE SYSTEM

#51
20220145876
2022-05-12

System and Method for Comprehensive Fracturing Pump Operation Monitoring

#52
20220145874
2022-05-12

ACTIVE OIL INJECTION SYSTEM FOR A DIAPHRAGM COMPRESSOR

#53
20220136497
2022-05-05

SUBSTRATE PROCESSING APPARATUS AND RECORDING MEDIUM

#54
20220120270
2022-04-21

Power-saving optimization operation method and switching point determining method for water pump unit

#55
20220090594
2022-03-24

Hydraulic fracturing pump control system

#56
20220036872
2022-02-03

Audio control to mask vehicle component noise

#57
20220010792
2022-01-13

Hydraulic system

#58
20220003230
2022-01-06

Microfluidic pump-based infusion anomaly state detection and control system

#59
20210404455
2021-12-30

Multi-stage compressor

#60
20210396234
2021-12-23

Motor drive system and method

#61
20210372395
2021-12-02

Status monitoring and failure diagnosis system for plunger pump

#62
20210317826
2021-10-14

Selective fluid pumping system

#63
20210310479
2021-10-07

Fluid machine

#64
20210293231
2021-09-23

Air compressor

#65
20210285437
2021-09-16

Method and fluid pump for conveying a fluid in a fluid circuit of a motor vehicle

#66
20210270259
2021-09-02

Fluid sensing safety

#67
20210246892
2021-08-12

Electric drive compressor system

#68
20210207594
2021-07-08

Method and apparatus for controlling a variable displacement pump

#69
20210180586
2021-06-17

System for Pumping a Compressible Liquid

#70
20210164465
2021-06-03

Method for monitoring the functioning of a compressor

#71
20210156373
2021-05-27

Calibration system for variable capacity hydraulic pump

#72
20210108845
2021-04-15

Method and device for controlling capacity change of compressor, and smart home appliance

#73
20210108632
2021-04-15

Air pressure system

#74
20210107038
2021-04-15

Pressurized cleaning apparatus comprising a pressure generation unit

#75
20210072733
2021-03-11

Method of predicting failure events for reciprocating compressors

#76
20210071673
2021-03-11

Drive protection and management method of a pressurization system

#77
20210054836
2021-02-25

Method for actuating a compressor system and a compressor system

#78
20210054835
2021-02-25

Using a load sense pump as a backup for a pressure-compensated pump

#79
20210041066
2021-02-11

Multi-vessel fluid storage and delivery system

#80
20210039121
2021-02-11

Remote priming of texture sprayer

#81
20210033573
2021-02-04

Binary pump and liquid chromatograph provided with same

#82
20210025380
2021-01-28

Gas compressor and method for controlling same

#83
20210017978
2021-01-21

Dynamic compressor controls

#84
20200386721
2020-12-10

Quick liquid exchange in liquid chromatography

#85
20200370400
2020-11-26

Method and system for controlling downhole pumping systems

#86
20200325890
2020-10-15

Air compressor

#87
20200284395
2020-09-10

LOW-COST CNG HOME FUEL STATION

#88
20200284251
2020-09-10

Pressure safety shutoff

#89
20200263682
2020-08-20

Tube pump system and method for controlling the tube pump system

#90
20200240472
2020-07-30

System for mounting an annular component on a shaft

#91
20200182235
2020-06-11

Liquid delivery device

#92
20200158103
2020-05-21

Low energy idling for a compressed air system

#93
20200135323
2020-04-30

Infusion system consumables and related calibration methods

#94
20200124042
2020-04-23

Method for operating a pressure control system comprising a multi-stage compressor, and pressure control system

#95
20200124041
2020-04-23

Minimum pressure valve and compressor comprising such a minimum pressure valve

#96
20200088623
2020-03-19

System and method for providing stable fluid flow

#97
20200088189
2020-03-19

Method of controlling a pump and motor

#98
20200040889
2020-02-06

Pump ripple pressure monitoring for incompressible fluid systems

#99
20200018306
2020-01-16

Sensor for Peristaltic Pump and Associated Methods

#100
20190383282
2019-12-19

Displacement pump for medical liquids, blood treatment device, and method for controlling same

#101
20190376862
2019-12-12

Compression device

#102
20190285064
2019-09-19

Tube pump system and method for controlling the tube pump system

#103
20190249660
2019-08-15

Method for controlling the outlet temperature of an oil injected compressor or vacuum pump and oil injected compressor or vacuum pump implementing such method

#104
20190232309
2019-08-01

Applicator having active backpressure control devices

#105
20190203705
2019-07-04

POLYMERIC MATERIALS

#106
20190187640
2019-06-20

Digital twin of centrifugal pump in pumping systems

#107
20190169944
2019-06-06

Systems and methods for fluid end monitoring

#108
20190128254
2019-05-02

Method of driving an atmospheric air pump in a capillary electrophoresis apparatus

#109
20190107255
2019-04-11

Apparatus for flexible, programmed, controlled transfer of liquids in multi-tank systems

#110
20190105954
2019-04-11

Automatic electronic air pump

#111
20190101136
2019-04-04

Hydraulic arrangement

#112
20190063425
2019-02-28

Method for operating a linear compressor

#113
20190024655
2019-01-24

Systems and methods for pump slip sensing

#114
20190004499
2019-01-03

Model formation module for creating a model for controlling a pressure regulating system of a water supply network

#115
20180372086
2018-12-27

Pneumatic system operation control device and control method

#116
20180359965
2018-12-20

Devices, systems, and methods for providing and using one or more pumps in an assembly line grow pod

#117
20180359964
2018-12-20

Devices, systems, and methods for providing and using a pump control module in a master controller in an assembly line grow pod

#118
20180353897
2018-12-13

Power supply control device of nitrogen gas generator

#119
20180347559
2018-12-06

Service module for troubleshooting pumping unit

#120
20180347416
2018-12-06

Control device for electric motor and hydraulic pressure supply system

#121
20180340528
2018-11-29

Hand pump with detachable air storage tank

#122
20180340524
2018-11-29

Hand pump with air storage tank

#123
20180335024
2018-11-22

Hydraulic pump

#124
20180313496
2018-11-01

Multi-vessel fluid storage and delivery system

#125
20180306188
2018-10-25

Compressor provided with an electronic pressure switch and method of regulating the pressure within such a compressor

#126
20180292679
2018-10-11

Glasses with wearing cushion device

#127
20180291887
2018-10-11

Eyeglass buffer protection device

#128
20180283368
2018-10-04

DETERMINING QUALITY OF GAS FOR ROTATING EQUIPMENT IN A PETROCHEMICAL PLANT OR REFINERY

#129
20180259382
2018-09-13

Method for estimating a flow out of a fluid pump, associated calculation system and associated drilling installation

#130
20180258613
2018-09-13

Hybrid work machine

#131
20180238314
2018-08-23

Air inflating device and tire repair machine comprising same

#132
20180223832
2018-08-09

Air compressing apparatus and control method

#133
20180209430
2018-07-26

Remote pump managing device

#134
20180195373
2018-07-12

DOWNHOLE LINEAR MOTOR AND PUMP SENSOR DATA SYSTEM

#135
20180128265
2018-05-10

Method of bypassing a float switch controlling a water pump

#136
20180128251
2018-05-10

High pressure fluid system

#137
20180126844
2018-05-10

Method for increasing the accuracy of pressure detection without using a sensor

#138
20180119713
2018-05-03

SYSTEM AND METHOD FOR HEALTH MONITORING OF HYDRAULIC PUMPS

#139
20180058482
2018-03-01

System for hydraulic pump health monitoring

#140
20180058443
2018-03-01

Method for determining cavitation in pumps

#141
20180028974
2018-02-01

Systems and method for feed forward control of diesel exhaust fluid delivery systems

#142
20180023574
2018-01-25

Flow control

#143
20180010599
2018-01-11

Calibration of a pump

#144
20170363034
2017-12-21

Delivery device for delivering a medium and for limiting a system pressure

#145
20170321845
2017-11-09

Natural gas home fast fill refueling station

#146
20170321688
2017-11-09

Inflatable object with pressure sensitive pump

#147
20170314548
2017-11-02

Method and device for operating a speed-controlled fluid pump

#148
20170298926
2017-10-19

Compressor

#149
20170298924
2017-10-19

Anti-ripple injection method and apparatus and control system of a pump

#150
20170268498
2017-09-21

Multistage Compressor

#151
20170241414
2017-08-24

System and method for health determination of a machine component

#152
20170234117
2017-08-17

Method of controlling a pump and motor

#153
20170218942
2017-08-03

Miniature fluid control device

#154
20170218939
2017-08-03

Miniature pneumatic device

#155
20170218938
2017-08-03

Miniature pneumatic device

#156
20170209880
2017-07-27

Flow-based control for texture sprayer

#157
20170204712
2017-07-20

System and method for automatic tuning of reference model for fracking rig pump

#158
20170191922
2017-07-06

System and method for providing stable fluid flow

#159
20170167476
2017-06-15

Pumping system for chromatography applications

#160
20170108882
2017-04-20

Pump control method and pressure-boosting device

#161
20170107702
2017-04-20

Pressure boosting device

#162
20170082101
2017-03-23

Apparatus and methods for identifying defective pumps

#163
20170037848
2017-02-09

Hydraulic pumping system with enhanced piston rod sealing

#164
20170037844
2017-02-09

Air compressor

#165
20170037842
2017-02-09

Air compressor

#166
20170022788
2017-01-26

Safety indicator lights for hydraulic fracturing pumps

#167
20170016433
2017-01-19

Reducing fluid pressure spikes in a pumping system

#168
20170009760
2017-01-12

Double diaphragm pump

#169
20160377075
2016-12-29

Compressor system and method for operating the compressor system in dependence on the current situation of the rail vehicle

#170
20160311420
2016-10-27

Compressor system and method for operating the compressor system in dependence on the operating state of the rail vehicle

#171
20160290562
2016-10-06

Compressor unit and gas supply apparatus

#172
20160281694
2016-09-29

System for feeding and pumping of less pumpable material in a conduit line

#173
20160222950
2016-08-04

Pumping system

#174
20160201665
2016-07-14

Gas control device

#175
20160195082
2016-07-07

System and method for health management of pumping system

#176
20160053749
2016-02-25

Pressure intensification device

#177
20160002889
2016-01-07

Engine-assist device and industrial machine

#178
20150300346
2015-10-22

Variable speed multi-pump application for providing energy saving by calculating and compensating for friction loss using speed reference

#179
20150198179
2015-07-16

Compressor system with pressure pulsation dampener and check valve

#180
20150184668
2015-07-02

Air compressor with audible alarm device

#181
20150167664
2015-06-18

Device for delivering liquid at a stable flow rate

#182
20150167661
2015-06-18

System and method for fault detection in an electrical device

#183
20150032055
2015-01-29

Device for supplying and metering a fluid for medicinal purposes

#184
20150010408
2015-01-08

Motor control apparatus and electric pump unit

#185
20140318235
2014-10-30

Method and system for monitoring the operational state of a pump

#186
20140284041
2014-09-25

Coolant supply device and supply method

#187
20140255215
2014-09-11

Intelligent pump monitoring and control system

#188
20130343911
2013-12-26

Dual redundancy in fire pump controllers

#189
20130259707
2013-10-03

System and method for monitoring and control of cavitation in positive displacement pumps

#190
20130243609
2013-09-19

Lance pump having vertically mounted stepper motor

#191
20130230413
2013-09-05

Method for controlling variable displacement pump

#192
20130228345
2013-09-05

Control of the electric motors of a pump unit of a fire protection system

#193
20130216357
2013-08-22

Feed water pump control device

#194
20130151113
2013-06-13

OIL PUMP CONTROL SYSTEM FOR VEHICLE

#195
20130121852
2013-05-16

System for controlling hydraulic pump in construction machine

#196
20130108473
2013-05-02

Method and controller for operating a pump system

#197
20130104631
2013-05-02

Pump for liquid chromatograph, and liquid chromatograph

#198
20130048096
2013-02-28

System comprising a pump, an injector and a regulator, with control signals to the pump which are based on calculated hose rigidities

#199
20130004337
2013-01-03

System and method for driving a pump

#200
20130004333
2013-01-03

Compressor temperature control by indirect temperature measurement

#201
20120325080
2012-12-27

Gas boosters

#202
20120303311
2012-11-29

Method for calculating the probability of moisture build-up in a compressor

#203
20120302945
2012-11-29

METHOD AND APPARATUS FOR THE DETERMINATION OF GAS IN A FLUID PUMPED THROUGH A PUMPING DEVICE

#204
20120230846
2012-09-13

Systems and methods of controlling pressure maintenance pumps and data logging pump operations

#205
20120227824
2012-09-13

Methods And Apparatus For Gas Compression With Gas Flow Rate And Pressure Regulation

#206
20120227391
2012-09-13

Device and method for controlling hydraulic pump of construction machinery

#207
20120216886
2012-08-30

Primary piston correction during transfer

#208
20120213644
2012-08-23

Electronically controlled liquid dispensing system with modular tubing and power design

#209
20120207623
2012-08-16

Method for Controlling Delivery Quantity, and Reciprocating Compressor Having Delivery Quantity Control

#210
20120189467
2012-07-26

Method for Controlling Delivery Quantity, and Reciprocating Compressor Having Delivery Quantity Control

#211
20120189463
2012-07-26

Hydraulic pump operating device and method for use in hydraulic system

#212
20120163996
2012-06-28

Hydraulic drive device of hydraulic operating machine

#213
20120156056
2012-06-21

PUMP UNITS

#214
20120128533
2012-05-24

Liquid supply device using check valve and reactive liquid chromatography system

#215
20120041663
2012-02-16

Abnormality detecting device for construction machine

#216
20120039723
2012-02-16

CONTROLLER FOR A LIQUID SUPPLY PUMP

#217
20110264409
2011-10-27

Compressor sensor module

#218
20110206539
2011-08-25

Fuel supply system

#219
20110206538
2011-08-25

Air compressor

#220
20110167811
2011-07-14

Engine control apparatus

#221
20110123375
2011-05-26

Rotational direction indicator

#222
20110076156
2011-03-31

Flow control

#223
20110044829
2011-02-24

Pumping system

#224
20110042283
2011-02-24

Liquid delivery device, liquid chromatograph, and method for operation of liquid delivery device

#225
20100329892
2010-12-30

Hydraulic drive and control system for pumps using a charge pump

#226
20100322786
2010-12-23

PRESSURE CONTROL UNIT

#227
20100310382
2010-12-09

Method of controlling a pump and motor

#228
20100275678
2010-11-04

Primary piston correction during transfer

#229
20100202897
2010-08-12

HIGH PRESSURE PUMP CONTROL

#230
20100189574
2010-07-29

HIGH PRESSURE PUMP CONTROL

#231
20100186713
2010-07-29

Engine control apparatus

#232
20100175401
2010-07-15

DISPLACEMENT CONTROL SYSTEM FOR A VARIABLE DISPLACEMENT COMPRESSOR

#233
20100154398
2010-06-24

Fluid pressure unit

#234
20100135824
2010-06-03

Process for Peristaltic Pump Control

#235
20100043417
2010-02-25

METHOD FOR DETERMINING A SETTING PARAMETER FOR A HYDROSTATIC DISPLACEMENT UNIT AND A CORRESPONDING SYSTEM

#236
20100034666
2010-02-11

Electronic camshaft motor control for piston pump

#237
20100021314
2010-01-28

METHOD AND APPARATUS FOR MONITORING THE PERFORMANCE OF A COMPRESSOR

#238
20100014987
2010-01-21

Control device for a power unit

#239
20090317262
2009-12-24

ENGINE SPEED CONTROL FOR PRESSURE WASHER

#240
20090304522
2009-12-10

Installation for high pressure compression with several stages

#241
20090252616
2009-10-08

Variable Rate Pumping System

#242
20090241642
2009-10-01

Method for Determination of a Leakage on a Piston Machine

#243
20090229456
2009-09-17

Device and method for state monitoring in hydrostatic displacement units

#244
20090223215
2009-09-10

Work machine, control system and method for controlling an engine in a work machine

#245
20090220352
2009-09-03

Method and Device for Monitoring and Controlling a Hydraulic Actuated Process

#246
20090196777
2009-08-06

Pump having adjustable pumping pressures

#247
20090196766
2009-08-06

Compressor unit with a damped pressure gauge

#248
20090169396
2009-07-02

Compressed air manufacturing facility

#249
20090145122
2009-06-11

Hydraulic drive system

#250
20090129941
2009-05-21

METHOD FOR CONTROLLING A PUMP ARRANGEMENT, AND PUMP ARRANGEMENT

#251
20090125257
2009-05-14

Compressor sensor module

#252
20090097986
2009-04-16

OIL PRESSURE UNIT AND SPEED CONTROL METHOD OF MOTOR IN OIL PRESSURE UNIT

#253
20090060752
2009-03-05

Constant pressure pressurizing water pump

#254
20090057227
2009-03-05

Liquid delivery device, liquid chromatograph, and method for operation of liquid delivery device

#255
20090053072
2009-02-26

Integrated "One Pump" Control of Pumping Equipment

#256
20080292471
2008-11-27

Air Compressor Control

#257
20080273989
2008-11-06

MULTI-STAGE GAS COMPRESSING APPARATUS

#258
20080247883
2008-10-09

Displacement control valve for variable displacement compressor

#259
20080221495
2008-09-11

Blood pump system user interface alarm management

#260
20080206067
2008-08-28

High pressure pump control

#261
20080145248
2008-06-19

Liquid chemical supply system and liquid chemical supply control device

#262
20080132844
2008-06-05

Drug pump systems and methods

#263
20080131300
2008-06-05

Peristaltic Pump

#264
20080131287
2008-06-05

Vsd Control

#265
20080101962
2008-05-01

Vacuum pump

#266
20080069708
2008-03-20

AIR COMPRESSOR UTILIZING A VARIABLE SPEED MOTOR AND AN ELECTRONIC CONTROL SYSTEM

#267
20080069703
2008-03-20

Air compressor having a pneumatic controller for controlling output air pressure

#268
20080065016
2008-03-13

Drug pump systems and methods

#269
20080065007
2008-03-13

Drug pump systems and methods

#270
20080063537
2008-03-13

Speed-related control mechanism for a pump and control method

#271
20080014097
2008-01-17

Compressed air manufacturing facility

#272
20070261888
2007-11-15

Mud pump systems for drilling operations

#273
20070237648
2007-10-11

Compressor driving torque estimating apparatus and compressor driving source control apparatus

#274
20070201985
2007-08-30

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Method and system for monitoring a reciprocating compressor

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Air compressor control

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System for adjusting resonance frequencies in a linear compressor

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Variable rate pumping system

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