ClassID:

249266

Y10T137/7904 - CPC Classification

Classification description:

Fluid handling; Line condition change responsive valves; Direct response valves [i.e., check valve type] Reciprocating valves

Sub-classes:
Recent Application in this class:
#1
20260146601
2026-05-28

SPRING CONTROLLING VALVE

#2
20230407864
2023-12-21

SPRING CONTROLLING VALVE

#3
20230160481
2023-05-25

Check valve unit and air-conditioning apparatus, and method for manufacturing check valve unit

#4
20220349485
2022-11-03

Backflow prevention and method of manufacture

#5
20220134407
2022-05-05

Check valve, air-conditioning apparatus, and method of manufacturing check valve

#6
20210156486
2021-05-27

Backflow prevention and method of manufacture

#7
20200386327
2020-12-10

TWO EDUCTOR / FOUR-WAY SELECTOR VALVE ASSEMBLY

#8
20190360776
2019-11-28

Valve device for toy gun

#9
20180142801
2018-05-24

Magnetically controlled pressure relief valve

#10
20180094734
2018-04-05

Two eductor / four-way selector valve assembly

#11
20170370489
2017-12-28

Two-way valve with rapid decompression flow dynamics

#12
20170276254
2017-09-28

Non chattering pressure relief valve

#13
20170253116
2017-09-07

VALVE ASSEMBLY FOR A TANK OF A VEHICLE AND A METHOD OF CREATING A VACUUM IN THE TANK

#14
20170122439
2017-05-04

Valve assembly

#15
20160363015
2016-12-15

Oil separating module in the crankcase ventilation system of a combustion engine

#16
20160153572
2016-06-02

Non chattering pressure relief valve

#17
20150369383
2015-12-24

Check valve for ventilation or outlet openings of compressed air apparatuses in vehicles

#18
20150354726
2015-12-10

Noise attenuation in a Venturi device and/or check valves

#19
20150345651
2015-12-03

Method and apparatus for beverage extraction with improved gas cylinder access

#20
20150336343
2015-11-26

Vent piece, tire vulcanization mold with vent piece, and tire manufactured using tire vulcanization mold

#21
20150330530
2015-11-19

Bypass valve

#22
20150322743
2015-11-12

Self-regulating surplussing check valve

#23
20150219228
2015-08-06

Backflow prevention and method of manufacture

#24
20150198179
2015-07-16

Compressor system with pressure pulsation dampener and check valve

#25
20150184801
2015-07-02

Lubricating grease return valve

#26
20150184770
2015-07-02

Magneto-rheological elastomeric fluid control armature assembly

#27
20150152895
2015-06-04

Cylinder phaser valves

#28
20150096625
2015-04-09

Valve assembly for a tank of a vehicle and a method of creating a vacuum in the tank

#29
20150068622
2015-03-12

Check valve for use with pumps controlled by variable frequency drives

#30
20150060571
2015-03-05

Adjustable smooth bore nozzle

#31
20150034195
2015-02-05

Valve unit comprising a check valve device

#32
20150034179
2015-02-05

Flow control system and control valve having closure assistance

#33
20150029639
2015-01-29

Methods and apparatus related to a purge valve for a capacitor

#34
20150020784
2015-01-22

Dual flow check valve for positive crankcase ventilation system

#35
20150000757
2015-01-01

Methods and systems for reducing pressure of natural gas and methods and systems of delivering natural gas

#36
20150000752
2015-01-01

Fluid pressure regulating system

#37
20140373797
2014-12-25

Non-return valve for an oil return in the crankcase ventilation system of a combustion engine

#38
20140345717
2014-11-27

Trim of check valve

#39
20140261809
2014-09-18

Multi channel valve

#40
20140261790
2014-09-18

Poppet valve with integrated dampener

#41
20140251465
2014-09-11

Tip-resistant valve plugs

#42
20140251462
2014-09-11

Vibration damping device

#43
20140251458
2014-09-11

Vibration damping device for a valve

#44
20140251457
2014-09-11

Vibration damping device

#45
20140182863
2014-07-03

Straight-bore back pressure valve

#46
20140158209
2014-06-12

Two educator/four-way selector valve assembly

#47
20140137969
2014-05-22

Valve assembly

#48
20140124065
2014-05-08

Check valve assembly

#49
20140026986
2014-01-30

Non chattering pressure relief valve

#50
20140007954
2014-01-09

Check valve for well stimulation

#51
20140000731
2014-01-02

Flow Control Valve Assemblies with Check Valves

#52
20130276889
2013-10-24

Methods for restricting backflow of solids in a pump assembly

#53
20130240061
2013-09-19

Pressure relief valve

#54
20130221255
2013-08-29

MAGNETO-RHEOLOGICAL ELASTOMERIC FLUID CONTROL ARMATURE ASSEMBLY

#55
20130192698
2013-08-01

Low noise back pressure regulator for supercritical fluid chromatography

#56
20130192473
2013-08-01

Valve arrangement of a commercial cooking device and commercial cooking device

#57
20130153579
2013-06-20

Safety device for a fluid storage tank, related systems and methods

#58
20130146158
2013-06-13

Directional control valve device

#59
20130074957
2013-03-28

PRESSURE VALVE FOR ENERGY STORAGE DEVICE AND ENERGY STORAGE DEVICE INCLUDING THE SAME

#60
20130052497
2013-02-28

AIR VALVE FOR ENERGY STORAGE DEVICE AND ENERGY STORAGE DEVICE INCLUDING THE SAME

#61
20130037136
2013-02-14

FLUID FLOW CONTROL DEVICE

#62
20130032745
2013-02-07

Face sealing annular valve

#63
20130019745
2013-01-24

Poppet valve with an impact damper and method for reducing impact wear in hyper compressors

#64
20130015385
2013-01-17

Poppet valve with integrated dampener

#65
20130000756
2013-01-03

Pressure-balanced fluid pressure regulators

#66
20120325331
2012-12-27

Pressure Regulator Valve Replacement Assembly

#67
20120305110
2012-12-06

Bidirectional pressure self-balancing stop valve

#68
20120285557
2012-11-15

Pressure regulator with remotely controlled shut-off valve

#69
20120279587
2012-11-08

COMPRESSOR SYSTEM WITH RAPID ACCESS VALVE

#70
20120266979
2012-10-25

Check Valve for Abrasive Blaster Pressure Vessel

#71
20120248348
2012-10-04

Dual-direction in-tank magnetic safety valve

#72
20120247593
2012-10-04

Two eductor / four-way selector valve assembly

#73
20120241030
2012-09-27

Disc check valve construction

#74
20120241029
2012-09-27

Check Valve

#75
20120241026
2012-09-27

Check Valve for Abrasive Blaster Pressure Vessel

#76
20120237845
2012-09-20

Pressure regulating valve, fuel cell system using same, and hydrogen generating facility

#77
20120227838
2012-09-13

Pressure regulator with manual shut-off valve

#78
20120227823
2012-09-13

Flow control screen assembly having remotely disabled reverse flow control capability

#79
20120211096
2012-08-23

CHECK VALVE AND VACUUM SYSTEM

#80
20120181471
2012-07-19

Flow valve

#81
20120152379
2012-06-21

Suction valve with unloader

#82
20120125454
2012-05-24

Flow-through pressure regulator device for irrigation plants

#83
20120103440
2012-05-03

FLOW DIRECTING APPARATUS FOR USE WITH FLUID REGULATORS

#84
20120097268
2012-04-26

FILLING CONTROL DEVICE FOR A HYDRODYNAMIC MACHINE

#85
20120085840
2012-04-12

Adjustable smooth bore nozzle

#86
20120067440
2012-03-22

Lubricating grease return valve

#87
20120063057
2012-03-15

Methods and apparatus related to a purge valve for a capacitor

#88
20120055572
2012-03-08

Backflow prevention and method of manufacture

#89
20120048401
2012-03-01

BALL CHECK VALVE

#90
20120048400
2012-03-01

Pressure control valve having an axial supply port

#91
20120042969
2012-02-23

Tip-resistant valve plugs

#92
20120012195
2012-01-19

Aerosol supply device and pressure regulator apparatus used therewith

#93
20110297254
2011-12-08

Flow control device

#94
20110293455
2011-12-01

BALL VALVE DEVICE AND METHOD FOR FORMING A BALL RETAINER IN A CHECK VALVE

#95
20110284092
2011-11-24

Pressure relief valve

#96
20110272046
2011-11-10

Dry-break fuel receiver with integral back-flow prevention

#97
20110240159
2011-10-06

Hydrogen-Generating Fuel Cell Cartridges

#98
20110240133
2011-10-06

Ejector valve with glands

#99
20110233299
2011-09-29

Low noise back pressure regulator for supercritical fluid chromatography

#100
20110197979
2011-08-18

Flow control valve with damping chamber

#101
20110192474
2011-08-11

Hydraulic control valve for construction machinery

#102
20110146814
2011-06-23

ELBOW PLUG EXTERNAL SLEEVE VALVE

#103
20110108141
2011-05-12

Check ball valve assembly with check ball guide

#104
20110079142
2011-04-07

Cylinder phaser valves

#105
20110073200
2011-03-31

GAS REGULATOR WITH VALVE ASSEMBLIES

#106
20110067767
2011-03-24

Sequence valve

#107
20110056571
2011-03-10

Methods and systems for reducing pressure of natural gas and methods and systems of delivering natural gas

#108
20110048553
2011-03-03

PRESSURE REGULATOR

#109
20110036436
2011-02-17

Water conducting household appliance

#110
20110036415
2011-02-17

Internal relief valve for a valve actuator

#111
20110011575
2011-01-20

Straight-bore back pressure valve

#112
20110011468
2011-01-20

Check valve for abrasive blaster pressure vessel

#113
20100326531
2010-12-30

Combination flow control valve and reverse flow check valve

#114
20100300556
2010-12-02

Check valve

#115
20100294382
2010-11-25

CHECK DEVICE AND CHECK VALVE HAVING THE CHECK DEVICE THEREIN

#116
20100263745
2010-10-21

DRAIN PLUG

#117
20100263363
2010-10-21

Hydraulic control device and pressure switch

#118
20100229971
2010-09-16

BACK-PRESSURE RESPONSIVE VALVE

#119
20100227241
2010-09-09

Pressure regulating valve, fuel cell system using same, and hydrogen generating facility

#120
20100200087
2010-08-12

Self-sealing check valve

#121
20100193038
2010-08-05

Pneumatic actuator with a position control and position adjustment

#122
20100175757
2010-07-15

WATER DELIVERY DEVICES

#123
20100171053
2010-07-08

TAP ADAPTORS

#124
20100170922
2010-07-08

Valve and dispenser

#125
20100170583
2010-07-08

Fluid control valve with sensing port

#126
20100163764
2010-07-01

IMPROVEMENTS IN OR RELATING TO WATER DELIVERY DEVICES

#127
20100154894
2010-06-24

Hydraulic Unloading Valve

#128
20100147403
2010-06-17

Pressure feedback shuttle valve

#129
20100139779
2010-06-10

Valve system

#130
20100132815
2010-06-03

Fuel vapor retention system and methods

#131
20100132814
2010-06-03

Two eductor/four-way selector valve assembly

#132
20100089471
2010-04-15

VALVE

#133
20100078085
2010-04-01

Relief valve structure

#134
20100078084
2010-04-01

Valve assembly

#135
20100072409
2010-03-25

Reclosable vacuum-tight pressure-relief device having a deformable seal member

#136
20100071123
2010-03-25

Automatic water leveler

#137
20100065135
2010-03-18

Controlling device for hydraulic consumers

#138
20100025613
2010-02-04

Microfluidic valve having free-floating member and method of fabrication

#139
20090324381
2009-12-31

Air bearing turbo cooling air flow regulating device

#140
20090255590
2009-10-15

Disc Check Valve

#141
20090250123
2009-10-08

Check valve

#142
20090223575
2009-09-10

Ejector valve machine

#143
20090199913
2009-08-13

Valve Device With Pressure Regulator

#144
20090193908
2009-08-06

Fluid flow controller

#145
20090173402
2009-07-09

SNUBBER VALVE

#146
20090173401
2009-07-09

VALVE ASSEMBLY

#147
20090165863
2009-07-02

Fluid pressure regulator with no-drain valve

#148
20090147830
2009-06-11

Synchronization band selection of a frequency hopping wireless receiver

#149
20090090419
2009-04-09

Suction valve

#150
20090071553
2009-03-19

Insert molded evacuation valve

#151
20090071140
2009-03-19

Hydraulic circuit, particularly for camshaft adjusters, and corresponding control element

#152
20090032619
2009-02-05

CHECK VALVE

#153
20090020629
2009-01-22

Hose nozzle apparatus and method

#154
20080314460
2008-12-25

Air admittance vent diaphragm assembly

#155
20080314459
2008-12-25

CHECK VALVE FOR A COMPRESSOR

#156
20080264496
2008-10-30

Valve

#157
20080236587
2008-10-02

First Stage Pressure Reducing Valve Having A Tubular Plug, Particularly For Regulators Of Scuba Breathing Apparatus

#158
20080233462
2008-09-25

Hydrogen-generating fuel cell cartridges

#159
20080223459
2008-09-18

Springless compressor valve

#160
20080223458
2008-09-18

TANK VENT PALLET

#161
20080223368
2008-09-18

Dispensing valve for breathing gas

#162
20080174108
2008-07-24

Snap-in-place valved coupler

#163
20080149195
2008-06-26

Suction valve with unloader

#164
20080110507
2008-05-15

BACKFLOW PREVENTION DEVICE FOR IN-LINE SCREW-TYPE INJECTION MOLDING MACHINE

#165
20080054208
2008-03-06

Elbow plug external sleeve valve

#166
20080038674
2008-02-14

Composite polymer microfluidic control device

#167
20080035875
2008-02-14

Microfluidic valve having free-floating member and method of fabrication

#168
20080023081
2008-01-31

Strainer and anti-backflow device for compressors

#169
20080014300
2008-01-17

Check Valve Lip Seal for an Injection Molding Machine

#170
20080011362
2008-01-17

Flow controller

#171
20080011361
2008-01-17

High-pressure regulator

#172
20070289642
2007-12-20

Device for dynamic control of a water flow

#173
20070272309
2007-11-29

Composite Polymer Microfludic Control Device

#174
20070007367
2007-01-11

"HOSE NOZZLE APPARATUS AND METHOD"

#175
20060237065
2006-10-26

Disc check valve

#176
20060191576
2006-08-31

Air admittance vent

#177
20060180208
2006-08-17

Springless compressor valve

#178
20060174952
2006-08-10

Hydrogen-generating fuel cell cartridges

#179
20060157119
2006-07-20

Method for winterizing a pool

#180
20060157118
2006-07-20

Air admittance vent diaphragm assembly

#181
20060049217
2006-03-09

Tool for hydro cleaner machine suitable for cleaning of surfaces

#182
20060042698
2006-03-02

Microfluidic check-valve embedded in LCP

#183
20050284600
2005-12-29

Check valve lip seal for an injection molding machine

#184
20050257838
2005-11-24

Disc check valve

#185
20050161092
2005-07-28

Self-sealing one-piece vacuum fitting for bagging of composite materials

#186
20050087232
2005-04-28

Emergency pressure relief valve with enhanced reset

#187
20050081922
2005-04-21

One-way valve with poppet member

#188
20050056321
2005-03-17

Composite polymer microfluidic control device

#189
20050016598
2005-01-27

Pressure-operated regulating valve with adjustable deadband

#190
17891731
2023-09-19

Spring controlling valve

#191
16997631
2022-07-12

Composite valve seat system and method

#192
16746519
2020-09-15

Composite valve seat system and method