ClassID:

152248

F16K15/063 - CPC Classification

Classification description:

Check valves with guided rigid valve members with guided stems the valve being loaded by a spring

Sub-classes:
Recent Application in this class:
#1
20260139749
2026-05-21

CHECK VALVE ASSEMBLY

#2
20260132603
2026-05-14

VALVE FOR CONTROLLING WATER FLOW VALVE AND FOR IMPROVING WATER METER HEALTH AND READINGS

#3
20260131603
2026-05-14

TIRE VALVE

#4
20260126121
2026-05-07

NON-RETURN VALVE, IN PARTICULAR FOR A REFRIGERATION OR HEAT CIRCUIT

#5
20260098587
2026-04-09

FLOAT VALVE FOR DOWNHOLE FLOAT EQUIPMENT

#6
20260078841
2026-03-19

CHECK VALVE HAVING A STATE INDICATION SYSTEM

#7
20260078831
2026-03-19

CHECK VALVE

#8
20260071695
2026-03-12

FLUID DAMPED CHECK VALVE, AND ASSOCIATED SYSTEMS AND METHODS

#9
20260036215
2026-02-05

DEVICES, SYSTEMS, AND METHODS FOR RELIEVING AND REGULATING PRESSURE DURING THE PERFORMANCE OF A FLUID SERVICE ON A MACHINE

#10
20250367891
2025-12-04

Resin Transfer Molding Vent Bleeder Valve

#11
20250347349
2025-11-13

DEVICES, SYSTEMS, AND METHODS FOR RELIEVING AND REGULATING PRESSURE DURING THE PERFORMANCE OF A FLUID SERVICE ON A MACHINE

#12
20250347348
2025-11-13

CHECK VALVE FOR HIGH-PRESSURE FLUIDS, INCLUDING ABRASIVES LADEN FLUIDS

#13
20250334201
2025-10-30

VALVE DEVICE, MOLDING MACHINE AND METHOD FOR CONTROLLING A VALVE DEVICE

#14
20250320865
2025-10-16

VALVE CARTRIDGE FOR A FLUID PUMP

#15
20250250974
2025-08-07

HIGH PRESSURE PUMP

#16
20250243730
2025-07-31

AXIALLY AND ROTATIONALLY LOCKED MODULAR VALVE ASSEMBLY SYSTEM

#17
20250189053
2025-06-12

WATER FLOW REGULATION

#18
20250189050
2025-06-12

EXTRACTION VALVE AND VACUUM COLLECTION SYSTEM

#19
20250172215
2025-05-29

CHECK VALVE

#20
20250116342
2025-04-10

RAPID-INFLATE VALVE STEMS AND ASSOCIATED SYSTEMS AND METHODS

#21
20250116341
2025-04-10

CHECK VALVE

#22
20250075694
2025-03-06

VALVE CARTRIDGE FOR A FLUID PUMP

#23
20250052326
2025-02-13

Metering Valve

#24
20250043878
2025-02-06

Piston-Diaphragm Assembly for a Valve and a Manufacturing Method

#25
20250043877
2025-02-06

Valve and Pressurized Fluid Apparatus

#26
20250003503
2025-01-02

Valve stop for use with a fluid end assembly

#27
20250003399
2025-01-02

Fluid end assembly

#28
20240426413
2024-12-26

OXYGEN GENERATOR

#29
20240418279
2024-12-19

SYSTEMS AND METHODS FOR REDUCING SIMMER IN A SAFETY RELIEF VALVE

#30
20240376990
2024-11-14

PRESSURE RELIEF VALVE

#31
20240376989
2024-11-14

Cylinder valve

#32
20240360911
2024-10-31

CHECK VALVE

#33
20240358991
2024-10-31

Medical pin index residual pressure valve

#34
20240353015
2024-10-24

CHECK VALVE, AND ASSOCIATED SYSTEMS AND METHODS

#35
20240353014
2024-10-24

INTEGRATED DOT PRESSURE PROTECTION VALVE

#36
20240344506
2024-10-17

High pressure pump

#37
20240337325
2024-10-10

Dart valve

#38
20240328524
2024-10-03

CHECK VALVE AND USE THEREOF IN A FLUID SYSTEM

#39
20240318736
2024-09-26

One-Way Valve and Valve Terminal

#40
20240318730
2024-09-26

Valve assembly

#41
20240295271
2024-09-05

POP-UP VALVE FOR MANAGING BACKFLOW

#42
20240292986
2024-09-05

DUST BOX, AUTOMATIC CLEANING APPARATUS AND DUST COLLECTION PILE

#43
20240288083
2024-08-29

CHECK VALVE AND BRAKE SYSTEM INCLUDING THE SAME

#44
20240288082
2024-08-29

VALVE FOR AIRBAG DECELERATOR

#45
20240271397
2024-08-15

VALVE FOR CONTROLLING WATER FLOW VALVE AND FOR IMPROVING WATER METER HEALTH AND READINGS

#46
20240229949
2024-07-11

CHECK VALVE

#47
20240229937
2024-07-11

SAFETY VALVES, VEHICLES AND FUELING STATIONS INCLUDING THE SAME, AND RELATED METHODS

#48
20240209559
2024-06-27

DETERGENT SUPPLY DEVICE FOR CLOTHES PROCESSING APPARATUS

#49
20240192709
2024-06-13

FLUID FLOW THROTTLE VALVE

#50
20240183457
2024-06-06

Rapid-inflate valve stems and associated systems and methods

#51
20240133474
2024-04-25

Check valve

#52
20240133469
2024-04-25

SAFETY VALVES, VEHICLES AND FUELING STATIONS INCLUDING THE SAME, AND RELATED METHODS

#53
20240110631
2024-04-04

Unloading valve assembly for compressed air processing system in a commercial vehicle

#54
20240102565
2024-03-28

BYPASS VALVES FOR POOL HEATERS

#55
20240084906
2024-03-14

CHECK VALVE

#56
20240084905
2024-03-14

SYSTEMS AND METHODS FOR PISTON CHECK VALVES

#57
20240068459
2024-02-29

Fluid end assembly

#58
20240003345
2024-01-04

LINEAR COMPRESSOR DISCHARGE VALVES

#59
20230375105
2023-11-23

VALVE FOR CONTROLLING A MEDIUM IN A COOLING CIRCUIT OR HEAT CIRCUIT

#60
20230349477
2023-11-02

Pressure relief valve

#61
20230341061
2023-10-26

DOUBLE-GUIDED DART CHECK VALVE FOR SURFACE HYDRAULIC FRACTURING OPERATIONS

#62
20230323969
2023-10-12

VALVE SPRING HOLDER, VALVE BOX, AND PLUNGER PUMP

#63
20230303049
2023-09-28

CHECK VALVE AND BRAKE SYSTEM

#64
20230302505
2023-09-28

Fluid regulator having integral fluid purge mechanism

#65
20230271119
2023-08-31

Bypass valve with variable filter

#66
20230250886
2023-08-10

Valve device having a valve sitting in a valve socket

#67
20230243430
2023-08-03

Flow control valve

#68
20230242032
2023-08-03

Dunnage Bag Valve Adapter

#69
20230235831
2023-07-27

Pressure actuated switching valve

#70
20230235826
2023-07-27

CHECK VALVE WITH INTEGRATED PRESSURE RELIED VALVE

#71
20230219022
2023-07-13

Bypass valve with variable filter

#72
20230204114
2023-06-29

VALVE SEATS FOR USE IN FRACTURING PUMPS

#73
20230175603
2023-06-08

PRESSURE RELIEF VALVE FOR HIGH-PRESSURE FLUIDS, INCLUDING ABRASIVES LADEN FLUIDS

#74
20230175594
2023-06-08

Water flow regulation

#75
20230173854
2023-06-08

WHEEL VALVE ASSEMBLY FOR TIRE INFLATION/DEFLATION SYSTEM

#76
20230160382
2023-05-25

Fluid end

#77
20230151897
2023-05-18

Fuel nozzle with reduced flow tolerance

#78
20230111681
2023-04-13

CHECK VALVE ASSEMBLY

#79
20230106466
2023-04-06

Valve seat with ceramic insert

#80
20230088255
2023-03-23

Systems and methods for reducing simmer in a safety relief valve

#81
20230064095
2023-03-02

INLINE SAFETY VALVE

#82
20230050603
2023-02-16

Modular power end

#83
20230047890
2023-02-16

Seal arrangement and check valve including same

#84
20230034729
2023-02-02

Fluid flow device

#85
20230034413
2023-02-02

HIGH FLOW CHECK VALVE FOR MEDICAL GAS APPLICATIONS

#86
20230023113
2023-01-26

STOP VALVE FOR INSTALLATION IN A PIPELINE, IN PARTICULAR IN A PIPELINE OF A NUCLEAR FACILITY

#87
20230022890
2023-01-26

Fluid end assembly

#88
20230012666
2023-01-19

High pressure pump

#89
20230010656
2023-01-12

Device for regulating pressures of a flow medium using a valve

#90
20220397107
2022-12-15

Fluid end assembly

#91
20220389916
2022-12-08

High pressure pump

#92
20220389855
2022-12-08

COMPACT PISTON VALVE

#93
20220381234
2022-12-01

Fluid routing plug

#94
20220373377
2022-11-24

Valve for controlling water flow and for improving water meter health and readings

#95
20220325609
2022-10-13

TUBING OBSTRUCTION REMOVAL DEVICE

#96
20220316612
2022-10-06

Check valve

#97
20220316610
2022-10-06

SANITARY FITTING

#98
20220316601
2022-10-06

Metering valve

#99
20220307568
2022-09-29

Fluid-damped valve

#100
20220307486
2022-09-29

Fluid end

#101
20220299035
2022-09-22

Vacuum pump comprising a relief valve and a method of assembly of the relief valve

#102
20220290767
2022-09-15

NON-RETURN CHECK VALVE FOR VACUUM SYSTEM

#103
20220282797
2022-09-08

Systems and methods for piston check valves

#104
20220282725
2022-09-08

High pressure pump

#105
20220282717
2022-09-08

Fluid routing plug

#106
20220276663
2022-09-01

Fluid Flow Regulator

#107
20220260166
2022-08-18

Adjustable valve

#108
20220260165
2022-08-18

Valve, device for regulating the pressure of a flow medium using the valve, and device for securing the valve in a transmission component

#109
20220252168
2022-08-11

Check valve

#110
20220235751
2022-07-28

Fluid routing plug

#111
20220228670
2022-07-21

Assemblable check valve

#112
20220221094
2022-07-14

TUBE FITTING AND TUBE FITTING SET

#113
20220221073
2022-07-14

Flow fuse valve and method of assembly thereof

#114
20220186850
2022-06-16

CHECK-VALVE

#115
20220186849
2022-06-16

Check valve

#116
20220186848
2022-06-16

Pressure reducing valve

#117
20220178417
2022-06-09

Dual spring valve

#118
20220170567
2022-06-02

Valve structure with built-in valve seat of pre-action warning valve

#119
20220163034
2022-05-26

Modular power end

#120
20220145997
2022-05-12

Flow control valve

#121
20220099201
2022-03-31

Adjustable valve core

#122
20220090692
2022-03-24

Valve, battery and power consumption device

#123
20220065732
2022-03-03

System and method for line pressure testing with isolation valve

#124
20220049788
2022-02-17

Electromagnetic regulating valve with check function

#125
20220049686
2022-02-17

Fluid end

#126
20220042612
2022-02-10

Fluid dispensing device with safety valve

#127
20220034423
2022-02-03

Hydraulic cartridge valve with activation sensor

#128
20220003420
2022-01-06

Method and apparatus for a manual gas valve

#129
20220003231
2022-01-06

High pressure common rail fuel pump outlet check valve retainer

#130
20220001995
2022-01-06

Aspirator air vent valve

#131
20210372529
2021-12-02

Separate valve seating

#132
20210285567
2021-09-16

Indicators for valves

#133
20210278003
2021-09-09

Check valve assembly having a poppet

#134
20210254611
2021-08-19

Pump valve assembly

#135
20210238961
2021-08-05

Hydrocarbon flowline corrosion inhibitor overpressure protection

#136
20210231224
2021-07-29

Valve

#137
20210222788
2021-07-22

Non-return valve, in particular for a refrigeration or heat circuit

#138
20210215264
2021-07-15

HEMISPHERICAL POPPET CHECK VALVE

#139
20210207727
2021-07-08

CHECK VALVE AND RECIPROCATING BODY FOR CHECK VALVE

#140
20210190225
2021-06-24

Non-return valve and connection device for a non-return valve

#141
20210190223
2021-06-24

Cladded valve seat, assembly, and methods for cladding such seat

#142
20210180549
2021-06-17

Fuel tank check valve

#143
20210164577
2021-06-03

Fuel nozzle with reduced flow tolerance

#144
20210148349
2021-05-20

High pressure pump

#145
20210148346
2021-05-20

Modular power end

#146
20210148208
2021-05-20

Fluid end

#147
20210148193
2021-05-20

Hydrocarbon flowline corrosion inhibitor overpressure protection

#148
20210139349
2021-05-13

Reject valve of reverse osmosis device

#149
20210129390
2021-05-06

Valve insert and air venting valve

#150
20210123538
2021-04-29

Systems and methods for piston check valves

#151
20210115913
2021-04-22

FLOW REGULATING VALVE AND COMPRESSOR

#152
20210108732
2021-04-15

Leak resistant and serviceable receptacle

#153
20210095768
2021-04-01

Check valve

#154
20210062926
2021-03-04

Check valve assembly

#155
20210048113
2021-02-18

THREADLESS VALVE

#156
20210025400
2021-01-28

Device for protecting an electric pump against overpressures

#157
20200400243
2020-12-24

Precision fuel metering check valve cartridge

#158
20200400242
2020-12-24

Valve configuration

#159
20200400140
2020-12-24

Valve for reciprocating pump assembly

#160
20200363015
2020-11-19

Independent secondary indicator for vapor valve actuation

#161
20200362975
2020-11-19

Valve assembly for a fluid end with limited access

#162
20200284365
2020-09-10

Valve seats for use in fracturing pumps

#163
20200240236
2020-07-30

High pressure float valve

#164
20200200285
2020-06-25

VALVE FOR A HEAT-TRANSFER FLUID CIRCUIT

#165
20200199973
2020-06-25

Hydrocarbon flowline corrosion inhibitor overpressure protection

#166
20200182389
2020-06-11

COUPLING FOR CRYOGENIC LIQUEFIED MEDIA

#167
20200165898
2020-05-28

Flow control assembly

#168
20200158347
2020-05-21

Method and apparatus for a manual gas valve

#169
20200149651
2020-05-14

Valve assembly

#170
20200149644
2020-05-14

Check valve and reciprocating body for check valve

#171
20200132153
2020-04-30

Damping valve for a vibration damper

#172
20200124191
2020-04-23

Integral check valve

#173
20200122848
2020-04-23

Aspirator air vent valve

#174
20200109792
2020-04-09

Non-return valve

#175
20200096124
2020-03-26

Check valve and system for continuous supply of ink to printer

#176
20200072371
2020-03-05

Valve for large scale irrigation

#177
20200063880
2020-02-27

TAMPER RESISTANT IN LINE ADJUSTABLE VALVE FOR PREVENTING AIR FROM BEING DIRECTED TO A WATER METER

#178
20200041014
2020-02-06

Two-piece guide bushing

#179
20200025300
2020-01-23

Accuracy enhancing valve assembly and method

#180
20190383414
2019-12-19

Valve unit including a reinforcement mechanism with optional sensor assembly

#181
20190383403
2019-12-19

Flow control valve

#182
20190376606
2019-12-12

High-pressure pump

#183
20190360292
2019-11-28

Testable back pressure valve and pressure testing system therefor

#184
20190331231
2019-10-31

Valve for methane in automotive systems with improved sealing

#185
20190309858
2019-10-10

Stem guided valve

#186
20190309501
2019-10-10

Valve for controlling water flow and for improving water meter health and readings

#187
20190293330
2019-09-26

High flow service connection valve

#188
20190275881
2019-09-12

Fuel supply device

#189
20190271216
2019-09-05

ROD PUMP SYSTEM

#190
20190264512
2019-08-29

High opening pressure poppet valve

#191
20190242777
2019-08-08

Line pressure isolation valve

#192
20190242495
2019-08-08

Device for detecting fluid flow

#193
20190242385
2019-08-08

Compressor and valve assembly

#194
20190226593
2019-07-25

Valve

#195
20190219182
2019-07-18

Check valve

#196
20190186345
2019-06-20

Integrated passive one way valve in charge air inlet tank

#197
20190178412
2019-06-13

Axially restricted pressure shuttle

#198
20190170138
2019-06-06

PUMP ASSEMBLY INCLUDING FLUID CYLINDER AND TAPERED VALVE SEATS

#199
20190160714
2019-05-30

Systems and methods for applying vacuum pressure to composite parts

#200
20190113145
2019-04-18

VALVE

#201
20190111361
2019-04-18

Anti-drainback valves, flex tube assemblies including the same, and dual outlet fluid filter including the same

#202
20190107223
2019-04-11

Inlet valve locking system for inflatable underwater equipment

#203
20190092162
2019-03-28

Check valve for fuel tank

#204
20190063427
2019-02-28

Tapered valve seat

#205
20190056038
2019-02-21

Valve

#206
20190056033
2019-02-21

Valves including multiple seats and related assemblies and methods

#207
20190047335
2019-02-14

Valve assembly for a tire inflation system

#208
20190040966
2019-02-07

Valve seat with a hardened sleeve interior and a metal exterior

#209
20190024814
2019-01-24

CHECK VALVE FOR A VARIABLE COMPRESSION INTERNAL COMBUSTION ENGINE AND A CONNECTING ROD WITH THE CHECK VALVE

#210
20190009041
2019-01-10

VALVES AND TUBES INCLUDING VALVES

#211
20180340540
2018-11-29

Poppet valve

#212
20180339849
2018-11-29

Aerator valve assembly

#213
20180335154
2018-11-22

Check valve

#214
20180329435
2018-11-15

Externally adjustable flow management valve assembly and system

#215
20180328508
2018-11-15

Breakaway coupling

#216
20180313456
2018-11-01

Valve seats for use in fracturing pumps

#217
20180306176
2018-10-25

Poppet valve

#218
20180299055
2018-10-18

Leak resistant and serviceable receptacle

#219
20180299027
2018-10-18

Valve assembly

#220
20180283594
2018-10-04

Male coupling member

#221
20180283568
2018-10-04

CONE VALVE

#222
20180274690
2018-09-27

Valve core

#223
20180245702
2018-08-30

Nozzle check valve

#224
20180238458
2018-08-23

Anti-drain valve assembly with integrated fixation function

#225
20180224008
2018-08-09

Valve for pressurized environments

#226
20180209557
2018-07-26

Check valve

#227
20180209553
2018-07-26

Check valve and method of forming a check valve

#228
20180202567
2018-07-19

Throttling device and refrigeration cycle

#229
20180187788
2018-07-05

Accuracy enhancing valve assembly and method

#230
20180180007
2018-06-28

High pressure common rail fuel pump outlet check valve spring retainer method

#231
20180163894
2018-06-14

NEW TYPE OF TURNOVER LIFT FOOT VALVE

#232
20180163505
2018-06-14

Testable back pressure valves

#233
20180128389
2018-05-10

Check valve with plastic lip seal

#234
20180128386
2018-05-10

Adjustable pressure actuated diaphragm valve assembly

#235
20180119831
2018-05-03

Valve device

#236
20180112780
2018-04-26

Valves including multiple seats and related assemblies and methods

#237
20180112380
2018-04-26

Insert part having a water-channeling cartridge housing

#238
20180073659
2018-03-15

Sanitary high pressure aerator valve assembly

#239
20180073653
2018-03-15

Valve seats for use in fracturing pumps

#240
20180045618
2018-02-15

DIAMOND SINTERED SAMPLING RELIEF VALVE

#241
20180038127
2018-02-08

Protective device, in particular a tent or marquee, and connection device therefor

#242
20180031143
2018-02-01

Balancing valve for adjusting the distribution of fluids in multiple pipes

#243
20180010420
2018-01-11

Flow control assembly

#244
20180002902
2018-01-04

Automatic fluid flow controlling device for stopping flow of running fluid

#245
20170363203
2017-12-21

Switch valve assembly and hydraulic control module including same

#246
20170343123
2017-11-30

Check Valve for Submersible Pump

#247
20170314693
2017-11-02

Pressure relief module

#248
20170314690
2017-11-02

Cone valve

#249
20170307093
2017-10-26

Pilot check valve

#250
20170306594
2017-10-26

Dual check backflow preventer

#251
20170304753
2017-10-26

Pressure sensitive valve assembly incorporating enhanced retention legs and fluid filter comprising the same

#252
20170292646
2017-10-12

Integral Valve

#253
20170284551
2017-10-05

Water pump with check valve

#254
20170254580
2017-09-07

Cold room combination vent and light

#255
20170215624
2017-08-03

Heatable canteen

#256
20170197159
2017-07-13

Water stoppage structure utilized in a water purifier filter core

#257
20170196395
2017-07-13

Heatable canteen

#258
20170191356
2017-07-06

Rod pump system

#259
20170183860
2017-06-29

Backflow prevention apparatus

#260
20170175930
2017-06-22

Noise reducing filler valve

#261
20170159834
2017-06-08

Check valve

#262
20170146139
2017-05-25

Robust in-line valve

#263
20170144810
2017-05-25

Dispensing enclosure for a container

#264
20170113671
2017-04-27

Noise reduction device for negative pressure line of brake booster

#265
20170108135
2017-04-20

Non-return valve for a water supply system having a sealing body movably connected to a holder's receiver opening by one or more limbs and lugs

#266
20170108132
2017-04-20

Valve

#267
20170107125
2017-04-20

Method for improving performance of fluid processing system based on crystallization promoting medium

#268
20170089470
2017-03-30

Pressure pumping valves and methods of making such valves

#269
20170082215
2017-03-23

Automatic fill system

#270
20170074411
2017-03-16

Valve

#271
20170073941
2017-03-16

Dual check backflow preventer

#272
20170067459
2017-03-09

Pump assembly including fluid cylinder and tapered valve seats

#273
20170067231
2017-03-09

Drinking and service water supply device of a building, and regulating valve therefor

#274
20170066589
2017-03-09

Sanitary high pressure aerator valve assembly

#275
20170038106
2017-02-09

Throttle device

#276
20170030614
2017-02-02

Throttle device

#277
20170023141
2017-01-26

Swing check valve

#278
20170000303
2017-01-05

Seat-type air extracting suction apparatus to aid bowel movement

#279
20160369905
2016-12-22

Control valve

#280
20160334025
2016-11-17

Breakaway coupling

#281
20160312914
2016-10-27

Pressure relief valve for railroad tank cars

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Valve device and poppet

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2016-10-20

Fluid filter and relief valve assembly

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2016-09-29

VALVE FOR METHANE IN AUTOMOTIVE SYSTEMS WITH IMPROVED SEALING

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2016-09-08

Nozzle-type check valve with piston

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2016-08-25

Dart valves for bypass plungers

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2016-08-25

Anti-siphon one-way valve

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2016-08-11

Vacuum valve

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2016-08-04

Gas valve with rubber seal packing on the closing member

#290
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2016-08-04

Integral valve

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20160178078
2016-06-23

Check valve having polymeric seat and poppet

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20160169397
2016-06-16

Check valve

#293
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2016-06-02

CONTROL VALVE

#294
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2016-06-02

DYNAMIC VALVE SEAL ARRANGEMENT

#295
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2016-05-26

Gas lift valve assemblies having fluid flow barrier and methods of assembling same

#296
20160138727
2016-05-19

Discharge vacuum relief valve for safety vacuum release system

#297
20160131273
2016-05-12

Check valve and receptacle structure

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20160123483
2016-05-05

Modular check valve

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20160123315
2016-05-05

Rapid-discharge-valve structural body and diaphragm pump

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2016-04-21

Steam valve and steam turbine