ClassID:

152259

F16K15/148 - CPC Classification

Classification description:

Check valves with flexible valve members the closure elements being fixed in their centre

Recent Application in this class:
#1
20260139750
2026-05-21

AIR ADMITTANCE VALVE ASSEMBLY

#2
20260117878
2026-04-30

VALVE BODY STRUCTURE OF A VALVE DEVICE FOR A WEATHER-SEALING CHECK VALVE AND METHOD THEREFOR

#3
20260085763
2026-03-26

VENT VALVE AND VEHICLE BATTERY PACK HAVING THE SAME

#4
20260063216
2026-03-05

CHECK VALVE

#5
20260054106
2026-02-26

FILTERING FACEPIECE RESPIRATOR WITH AN ADJUSTABLE INHALATION-EXHALATION VALVE

#6
20250326541
2025-10-23

ONE-WAY VALVE AND RELATED CONTAINER KIT

#7
20250116354
2025-04-10

HEATED VALVE ASSEMBLY

#8
20250035106
2025-01-30

Water Jet Transfer Device

#9
20240410480
2024-12-12

UMBRELLA VALVE WITH OVERMOLDED CORE

#10
20240392893
2024-11-28

VENT WITH RELIEF VALVE

#11
20240209952
2024-06-27

Valve Device, Valve Housing and Universal Valve Housing

#12
20240102564
2024-03-28

Umbrella check valve assembly having retention plate

#13
20240044414
2024-02-08

Inflatable object and valve therefor

#14
20240044390
2024-02-08

VALVE AND SHOCK ABSORBER

#15
20230407214
2023-12-21

ACTIVE CARBONATION PRESSURE MONITORING CAP

#16
20230358327
2023-11-09

Pressure accomodating assembly

#17
20230355005
2023-11-09

A CLOSURE ASSEMBLY

#18
20230349372
2023-11-02

Diaphragm pump

#19
20230323973
2023-10-12

EMERGENCY DEGASSING VALVE APPARATUS

#20
20230323967
2023-10-12

FOOT VALVE ASSEMBLY AND SUBMERGED PUMP SYSTEM

#21
20230287991
2023-09-14

Vent with relief valve

#22
20230263364
2023-08-24

AUTOMATIC DETERGENT FEEDING DEVICE AND WASHING APPARATUS

#23
20230204112
2023-06-29

Electropneumatic field device

#24
20230184347
2023-06-15

Umbrella check valve assembly having retention plate

#25
20230160487
2023-05-25

Check valve with flash seal

#26
20230159238
2023-05-25

Pressure retention closure

#27
20230145717
2023-05-11

Inflatable object and valve therefor

#28
20230140980
2023-05-11

Fluid control device

#29
20230101175
2023-03-30

HEAT TRAP APPARATUS FOR WATER HEATER

#30
20230071670
2023-03-09

Valve

#31
20220379303
2022-12-01

Well plate assembly with pressure release mechanism

#32
20220316614
2022-10-06

Air release valve with low pressure sealing

#33
20220278419
2022-09-01

ELECTRIFIED VEHICLE BATTERY PRESSURE RELIEF STRUCTURE

#34
20220276663
2022-09-01

Fluid Flow Regulator

#35
20220275798
2022-09-01

A Diaphragm Pump

#36
20220196106
2022-06-23

Valve arrangement for a vibration damper

#37
20220175614
2022-06-09

MECHANICAL CARDIOPULMONARY RESUSCITATION DEVICE SUCTION CUP

#38
20220163135
2022-05-26

Check valve with secondary backflow seal

#39
20220145877
2022-05-12

Valve assembly for a reciprocating compressor

#40
20220145867
2022-05-12

Filling device for filling a defined quantity of a product

#41
20220120354
2022-04-21

Ventilation component

#42
20220112962
2022-04-14

ENCLOSURE VENT ASSEMBLY

#43
20220088424
2022-03-24

RADIOFREQUENCY ENABLED FILTERING FACEPIECE RESPIRATOR

#44
20220088423
2022-03-24

FILTERING FACEPIECE RESPIRATOR WITH AN ADJUSTABLE INHALATION-EXHALATION VALVE

#45
20220063904
2022-03-03

Vent

#46
20220057006
2022-02-24

Check valve with flash seal

#47
20220049782
2022-02-17

Sealing diaphragm and check valve having a sealing diaphragm for fluid technology applications

#48
20210396324
2021-12-23

Ventilation component

#49
20210396323
2021-12-23

Ventilation component

#50
20210381611
2021-12-09

Inflatable object and valve therefor

#51
20210372539
2021-12-02

VACUUM ADAPTER APPARATUS, SYSTEMS, AND RELATED METHODS FOR USE WITH INFLATABLE STRUCTURES HAVING RELIEF VALVES

#52
20210372538
2021-12-02

Pressure relief valve

#53
20210348693
2021-11-11

Check valve with flash seal

#54
20210338956
2021-11-04

Rotary occlusion valve for tracheostomy

#55
20210324969
2021-10-21

Vent with relief valve

#56
20210310579
2021-10-07

Check valve with secondary backflow seal

#57
20210310573
2021-10-07

Valve for Inflatable Bladder

#58
20210292057
2021-09-23

VALVE DEVICE, LID ASSEMBLY, CONTAINER AND USAGE THEREOF

#59
20210260583
2021-08-26

Well plate assembly with pressure release mechanism

#60
20210254732
2021-08-19

Automatic reset flood valve

#61
20210239227
2021-08-05

Air inflation device having rotatable pressure gauge

#62
20210231225
2021-07-29

One-way check valve

#63
20210222784
2021-07-22

Umbrella check valve assembly having retention plate

#64
20210222783
2021-07-22

Angle type check valve

#65
20210190059
2021-06-24

Linear compressor

#66
20210148473
2021-05-20

LEAK PROOF NON RETURN VALVE

#67
20210071770
2021-03-11

Leash Valve Apparatus

#68
20210025471
2021-01-28

Damping valve and shock absorber

#69
20210010605
2021-01-14

Vent plug and method

#70
20200365435
2020-11-19

Substrate container valve assemblies

#71
20200332908
2020-10-22

Check valves

#72
20200307343
2020-10-01

Vibration damper and vehicle

#73
20200277961
2020-09-03

Air intake assembly for centrifugal blower system and fuel cell incorporating same

#74
20200224396
2020-07-16

Devices and methods for optimizing flow through drains

#75
20200173433
2020-06-04

Diaphragm pump

#76
20200056711
2020-02-20

3-in-1 air valve assembly

#77
20200032924
2020-01-30

Vent with relief valve

#78
20200025111
2020-01-23

Metering valve assembly and method of assembly thereof

#79
20190352894
2019-11-21

Drain valve assembly

#80
20190346055
2019-11-14

One-way check valve

#81
20190316695
2019-10-17

Check valves

#82
20190219183
2019-07-18

Automatic reset flood valve

#83
20190217133
2019-07-18

Valve structure for respirator

#84
20190186583
2019-06-20

VALVE ARRANGEMENT AND DAMPER COMPRISING THE VALVE ARRANGEMENT

#85
20190186485
2019-06-20

Spring-energized check valve

#86
20190151602
2019-05-23

Nonreturn valve for a compact ventilation system as well as compact ventilation system

#87
20190151591
2019-05-23

Exhaust valve shroud for a personal protection respiratory device

#88
20190136992
2019-05-09

Sealing valve arrangement

#89
20190120391
2019-04-25

Valve device

#90
20190120263
2019-04-25

Constructing valve positioners for hazardous areas

#91
20190111361
2019-04-18

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

#92
20190093775
2019-03-28

Dual check valve

#93
20190070440
2019-03-07

Respirator having noncircular centroid-mounted exhalation valve

#94
20190049039
2019-02-14

One-way storage basin valve

#95
20190024810
2019-01-24

Check valve structure

#96
20180371944
2018-12-27

Oil jet for turbine engine with housing including sealing membrane

#97
20180355983
2018-12-13

DIAPHRAGM VALVE

#98
20180340324
2018-11-29

Drain valve assembly

#99
20180334277
2018-11-22

Vacuum sealing valve for canning jar lids

#100
20180319239
2018-11-08

Leveling valve for discharging and supplying fluid

#101
20180283567
2018-10-04

Vent assembly and method for a digital valve positioner

#102
20180252324
2018-09-06

Check structure of a control valve base

#103
20180224009
2018-08-09

Check valve

#104
20180163880
2018-06-14

Gravity Drain Valve

#105
20180163810
2018-06-14

PISTON

#106
20180135768
2018-05-17

Check valve

#107
20180128189
2018-05-10

Exhaust gas flap

#108
20180100598
2018-04-12

NOVEL PINCH VALVE AND RELATED METHODS

#109
20180051692
2018-02-22

Volume pump including a bellows and a suction valve and a discharge valve wherein the valves comprise a valve seat and a valve body and wherein a fixed section of the valve body includes a communicating flow path

#110
20180045121
2018-02-15

Metering valve assembly and method of assembly thereof

#111
20180038498
2018-02-08

Stacked disk check valve

#112
20180038497
2018-02-08

Stacked disk check valve

#113
20180030933
2018-02-01

Canister valve device for vehicle

#114
20180023727
2018-01-25

VALVE ASSEMBLY FOR A VOLUMETRIC COMPRESSOR OF THE RECIPROCATING TYPE

#115
20180023556
2018-01-25

Micro water pump capable of controlling flow precisely

#116
20180022212
2018-01-25

Line termination element for a ventilation outlet of a fluid container, and fluid container

#117
20170328486
2017-11-16

Valve for inflatable apparatuses

#118
20170284552
2017-10-05

Relief valve

#119
20170271188
2017-09-21

SUBSTRATE CONTAINER VALVE ASSEMBLIES

#120
20170241557
2017-08-24

Valve

#121
20170198826
2017-07-13

Flow control valve

#122
20170198469
2017-07-13

Mechanical valve for waterless urinal

#123
20170138494
2017-05-18

Check valve

#124
20170122445
2017-05-04

Gravity drain valve

#125
20170121953
2017-05-04

Waterless trap

#126
20170114911
2017-04-27

Valve structure, nonlubricated linear compressor, and cryocooler

#127
20170113238
2017-04-27

Trigger-type liquid dispenser

#128
20170060146
2017-03-02

Thermostatic valve having anti-siphon feature

#129
20170009899
2017-01-12

Flow limiting device with a back flow prevention

#130
20170009898
2017-01-12

One way valve

#131
20160305559
2016-10-20

Check-valve assembly for vacuum system

#132
20160265669
2016-09-15

Switching valve

#133
20160265525
2016-09-15

Valve clack and air pump having same

#134
20160228689
2016-08-11

Umbrella check valve with reduced hemolysis

#135
20160223095
2016-08-04

VALVE FOR INFLATABLE DEVICES

#136
20160223094
2016-08-04

Automatic adjustable overpressure and manual exhaust valve for diving dry-suits

#137
20160201309
2016-07-14

Odor trap device

#138
20160178474
2016-06-23

Pressure measurement device and braking system comprising such pressure measurement device

#139
20160169398
2016-06-16

VALVE DEVICE FOR FUEL VAPOR SYSTEM

#140
20160146359
2016-05-26

Temporary elastomeric functional barrier membrane and method of manufacture

#141
20160129781
2016-05-12

Closing plug for an opening in a body structure of an automobile

#142
20160053756
2016-02-25

Valve and valve seat for a diaphragm pump

#143
20160003365
2016-01-07

Check Valve for Vacuum Container and Vacuum Container Lid using Same

#144
20150369513
2015-12-24

Check Valve for Ventilation System

#145
20150316158
2015-11-05

Vent assembly and method for a digital valve positioner

#146
20150316051
2015-11-05

Pump/compressor valve seat

#147
20150300511
2015-10-22

Gravity drain valve

#148
20150284019
2015-10-08

Steering device

#149
20150217906
2015-08-06

Spouted bag body

#150
20150184770
2015-07-02

Magneto-rheological elastomeric fluid control armature assembly

#151
20150136141
2015-05-21

Respirator having noncircular centroid-mounted exhalation valve

#152
20150101897
2015-04-16

Spring brake cylinder having combined inlet and outlet diaphragm valve

#153
20150090357
2015-04-02

Check valve

#154
20150041009
2015-02-12

Device for delivery of sample fluid

#155
20150000754
2015-01-01

Air release valve with elastic rolling shutter

#156
20140373953
2014-12-25

Check valve with flexible membrane

#157
20140345707
2014-11-27

Direct mount canister purge solenoid with additional vacuum ports

#158
20140345573
2014-11-27

Turbo bypass switch valve mounting on air box

#159
20140291062
2014-10-02

Electric power steering system

#160
20140144534
2014-05-29

Valves and pumps using said valves

#161
20140053929
2014-02-27

Bypass valve

#162
20140003986
2014-01-02

Discharge valve for reciprocating compressor having inner and outer flow areas

#163
20130292322
2013-11-07

Filter element of a filter device and filter device

#164
20130221255
2013-08-29

MAGNETO-RHEOLOGICAL ELASTOMERIC FLUID CONTROL ARMATURE ASSEMBLY

#165
20130186481
2013-07-25

Valve for inflatable objects

#166
20130139912
2013-06-06

Vacuum pump

#167
20130119287
2013-05-16

Switching valve

#168
20120273074
2012-11-01

Flow control device

#169
20120261006
2012-10-18

Air admittance vent

#170
20120244019
2012-09-27

Check valve

#171
20120174997
2012-07-12

Flow rate control valve

#172
20120172739
2012-07-05

Membrane valve

#173
20120152645
2012-06-21

WATER DRAIN VALVE COMPRISING AN UMBRELLA DIAPHRAGM

#174
20120138171
2012-06-07

Oil separator unit

#175
20120121449
2012-05-17

Check valve

#176
20120048412
2012-03-01

Check valve

#177
20120012193
2012-01-19

Apparatus for preventing backflow of fill valve in water toilet

#178
20110297245
2011-12-08

Valve for inflatable objects

#179
20110217200
2011-09-08

Vacuum pump

#180
20110203691
2011-08-25

Non-return valve

#181
20110168723
2011-07-14

Reservoir for a fuel tank

#182
20110088400
2011-04-21

Gas fuel supply apparatus

#183
20110069125
2011-03-24

Backflow prevention valve and fluid discharge device

#184
20110036433
2011-02-17

Relief valves for fuel cell systems

#185
20110033313
2011-02-10

Air flow control apparatus

#186
20110028853
2011-02-03

Check valve structure, diaphragm pump, and sphygmomanometer

#187
20100187230
2010-07-29

One-way valve for flexible package and package including a one-way valve

#188
20100163355
2010-07-01

SHOCK ABSORBER

#189
20100152680
2010-06-17

One-way valve, especially low pressure check valve for use in the medical technique

#190
20100150697
2010-06-17

Fluid release valve

#191
20100147900
2010-06-17

Cap for a condiment container

#192
20090314357
2009-12-24

Liquid tank venting system

#193
20090289210
2009-11-26

Valve structure

#194
20090271965
2009-11-05

Apparatus for the application of pressure relief valves

#195
20090255591
2009-10-15

Isolation valve with corrosion protected and heat transfer enhanced valve actuator and closure apparatus and method

#196
20090249644
2009-10-08

Inflation mechanism and outlet valve for an article of footwear incorporating an inflatable bladder

#197
20090219353
2009-09-03

Dual seating quick connect valve

#198
20090166575
2009-07-02

Control valve with profiled packing element

#199
20090126724
2009-05-21

ONE-WAY VALVE

#200
20090120949
2009-05-14

Ventilation member, ventilation member kit, and vented housing and vented tank using them

#201
20090101853
2009-04-23

Firing valve

#202
20090050217
2009-02-26

Check valve

#203
20090018513
2009-01-15

Flow control apparatus and medical injection circuit using the same

#204
20080314459
2008-12-25

CHECK VALVE FOR A COMPRESSOR

#205
20080185062
2008-08-07

FLUID CONTROL VALVE

#206
20080184896
2008-08-07

Apparatus for preparing a beverage suitable for consumption, such as coffee

#207
20080142102
2008-06-19

Check Valve and Pump for High Purity Fluid Handling Systems

#208
20080135102
2008-06-12

First stage pressure regulator for a two-stage underwater breathing apparatus

#209
20080053546
2008-03-06

Valve seal structure for reservoir of a fuel delivery module

#210
20070267589
2007-11-22

One-way valve

#211
20070222840
2007-09-27

Ink cartridge for inkjet printer

#212
20070157970
2007-07-12

Check valve for fluid

#213
20070146412
2007-06-28

Cleaning an ink chamber of a printing unit

#214
20070083677
2007-04-12

Valves, devices, and methods for endobronchial therapy

#215
20070028978
2007-02-08

Innovative valve mechanism for detergent dispenser

#216
20060260703
2006-11-23

Check valve

#217
20060196561
2006-09-07

Wall hydrant having backflow preventor

#218
20060169694
2006-08-03

Leak resistant drinking cup

#219
20060118189
2006-06-08

Flow variation valve assembly

#220
20060054855
2006-03-16

Valve for inflatable objects

#221
20060054110
2006-03-16

Heat trap

#222
20050257837
2005-11-24

Combination umbrella and inverted bi-directional valve

#223
20050211319
2005-09-29

Leakproof one-way valve for use with vacuum attachment

#224
20050145284
2005-07-07

Modular umbrella valve

#225
20050126649
2005-06-16

Check valve and pump including the same

#226
20050072475
2005-04-07

Precision valve for a garment vacuum bag

#227
20050065007
2005-03-24

Method for manufacturing a sealable bag having an integrated valve structure for use in vacuum packaging

#228
20050036717
2005-02-17

Sealable bag having an integrated zipper for use in vacuum packaging

#229
20050013717
2005-01-20

Valve assembly of reciprocating compressor

#230
20050003052
2005-01-06

Apparatus for preparing a beverage suitable for consumption, such as coffee

#231
17965439
2023-09-26

Air valve nozzle structure for inflatable cushion

#232
17737289
2023-08-22

Valve assembly including low force umbrella valve insertion

#233
17681600
2023-02-21

One-way suction check valve for facial mask integration

#234
17152398
2022-05-31

Water check valve adapter

#235
15835895
2019-04-30

Container for viscous liquid