ClassID:

213528

H01M8/04783 - CPC Classification

Classification description:

Fuel cells; Manufacture thereof; Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids; Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled; Pressure; Flow Pressure differences, e.g. between anode and cathode

Recent Application in this class:
#1
20260045526
2026-02-12

SYSTEM FOR REBALANCING A PRESSURE DIFFERENTIAL IN A FUEL CELL USING GAS INJECTION

#2
20250364578
2025-11-27

SYSTEM, A METHOD OF CONTROLLING A SYSTEM, AND A VEHICLE COMPRISING A SYSTEM

#3
20250349871
2025-11-13

FUEL CELL SYSTEM

#4
20250336995
2025-10-30

HYDROGEN GENERATION SYSTEM AND REGULATOR THEREFOR

#5
20250300207
2025-09-25

FUEL CELL SYSTEM

#6
20250112257
2025-04-03

FUEL CELL SYSTEM CAPABLE OF IMPROVING UTILIZATION OF MIXED FUEL

#7
20240387844
2024-11-21

METHOD FOR OPERATING A FUEL CELL FACILITY

#8
20240266564
2024-08-08

FUEL CELL UNIT

#9
20240222666
2024-07-04

FUEL CELL HYDROGEN MODULE

#10
20240145747
2024-05-02

CONTROLLING PRESSURE IN A FUEL CELL SYSTEM

#11
20230327149
2023-10-12

Fuel cell with protection from pressure imbalance

#12
20230317992
2023-10-05

FUEL CELL SYSTEM

#13
20230317988
2023-10-05

FUEL CELL SYSTEM

#14
20230261217
2023-08-17

ANODE RECOVERY SYSTEM OF FUEL CELL

#15
20230246210
2023-08-03

SYSTEMS AND METHODS TO OPTIMIZE A FUEL RECIRCULATION LOOP IN A FUEL CELL STACK

#16
20230147324
2023-05-11

DEVICE AND METHOD FOR CONTROLLING FUEL CELL SYSTEM

#17
20230142846
2023-05-11

FLOW CHANNELS FOR OPTIMAL OR IMPROVED DELIVERY OF FLUID TO POROUS ELECTROCHEMICAL / CHEMICAL MEDIA

#18
20230118048
2023-04-20

Fuel cell hydrogen module

#19
20220416278
2022-12-29

OPERATING SYSTEMS AND METHODS OF USING A PROPORTIONAL CONTROL VALVE IN A FUEL CELL SYSTEM

#20
20220407096
2022-12-22

FUEL CELL SYSTEM AND METHOD FOR CONTROLLING SAME

#21
20220399554
2022-12-15

Fuel cell control system for vehicles

#22
20220311023
2022-09-29

Method of aging fuel cell

#23
20220302484
2022-09-22

Fuel cell system and method of controlling fuel cell system

#24
20220223883
2022-07-14

Fuel cell system

#25
20220190370
2022-06-16

Fuel cell system

#26
20220181660
2022-06-09

A system for controlling fuel flow in proton exchange membrane fuel cells and a fuel ejector

#27
20210399321
2021-12-23

Fuel Cell System and Method of Reprocessing Off-Gas

#28
20210399318
2021-12-23

SYSTEM FOR REBALANCING A PRESSURE DIFFERENTIAL IN A FUEL CELL USING GAS INJECTION

#29
20210376360
2021-12-02

Fuel cell system and method of controlling fuel cell

#30
20210175524
2021-06-10

Fuel cell with protection from pressure imbalance

#31
20210091397
2021-03-25

Apparatus for controlling driving of fuel cell vehicle and method thereof

#32
20210075043
2021-03-11

Fuel cell system and anode off-gas discharge amount estimation system

#33
20200365919
2020-11-19

Fuel cell arrangement having differential pressure control for an H2/O2 fuel cell

#34
20200266467
2020-08-20

Fuel cell system and control method of the same

#35
20200235413
2020-07-23

Inspection device and inspection method

#36
20200168932
2020-05-28

Method of equalizing the pressure drop of fuel cell columns

#37
20200161682
2020-05-21

Pressure control system and control method of fuel cell stack

#38
20200119373
2020-04-16

RECIRCULATION ARRANGEMENT AND METHOD FOR A HIGH TEMPERATURE CELL SYSTEM

#39
20200058947
2020-02-20

FUEL CELL SYSTEM FOR AN AIRCRAFT

#40
20200020965
2020-01-16

Fuel cell system and control method thereof

#41
20190379074
2019-12-12

Method of operating a fuel cell stack having a temporarily disabled bleed valve

#42
20190326617
2019-10-24

Driving pressure adjusting valve device for fuel cell system

#43
20190260048
2019-08-22

Fuel cell system and control method of fuel cell system

#44
20190260047
2019-08-22

Fuel cell system and method of controlling fuel cell system

#45
20190157694
2019-05-23

Fuel cell system and control method of the same

#46
20190131642
2019-05-02

Fuel cell system and control method for turbine

#47
20190093242
2019-03-28

Water electrolysis system (SOEC) or fuel cell (SOFC) operating under pressure in a tight enclosure with improved regulation

#48
20190081340
2019-03-14

Wet state control method for fuel cell system and wet state control device for the same

#49
20190074526
2019-03-07

Fuel cell system and control device therefor, and control method for fuel cell system

#50
20180375121
2018-12-27

System for rebalancing a pressure differential in an anode exhaust system of a fuel cell with a relational water seal

#51
20180316032
2018-11-01

Methods and systems for operating a redox flow battery system

#52
20180309144
2018-10-25

Method for controlling air flow in a fuel cell power system

#53
20180287172
2018-10-04

System for electrolysing water (SOEC) or fuel-cell stack (SOFC) operating under pressure, the regulation of which is improved

#54
20180269514
2018-09-20

Redox flow battery

#55
20180226666
2018-08-09

Fuel cell system and method for controlling fuel cell system

#56
20170352899
2017-12-07

Fuel cell system with cathode bypass valve and control method for fuel cell system

#57
20170338503
2017-11-23

Method for controlling a fuel cell and associated fuel cell system

#58
20170324101
2017-11-09

PROACTIVE ANODE FLOODING REMEDIATION

#59
20170250422
2017-08-31

Method for controlling fuel cell system

#60
20170040629
2017-02-09

High-efficiency fuel cell system with carbon dioxide capture assembly and method

#61
20160380293
2016-12-29

Method for controlling operation pressure of fuel cell system

#62
20160315337
2016-10-27

Rebalancing electrolyte concentration in flow battery using pressure differential

#63
20160276681
2016-09-22

Fuel cell system

#64
20160197366
2016-07-07

Systems and methods for detecting leaks in a fuel cell system

#65
20160164132
2016-06-09

Method for activating fuel cell stack without using electric load

#66
20160133975
2016-05-12

Fuel cell system

#67
20160133972
2016-05-12

Fuel cell system

#68
20160133962
2016-05-12

Fuel cell system and vehicle equipped with fuel cell

#69
20160126570
2016-05-05

Combined power generation system and unit, method, and program for controlling the same

#70
20160020474
2016-01-21

Driving control method and system of fuel cell system

#71
20160013500
2016-01-14

Method and apparatus for detecting defects of fuel cell membrane-electrode assembly

#72
20150207158
2015-07-23

FUEL CELL SYSTEM AND ITS OPERATING METHOD

#73
20150056533
2015-02-26

Fuel cell system

#74
20150004511
2015-01-01

Method for controlling air flow in a fuel cell power system

#75
20140193729
2014-07-10

Fuel cell system and method of operating the same

#76
20140134508
2014-05-15

Fuel cell system and method for controlling fuel cell system

#77
20140080025
2014-03-20

Fuel cell system

#78
20140011105
2014-01-09

Reverse flow relief valve for a fuel cell system

#79
20130252124
2013-09-26

System and method for activating fuel cells

#80
20130164644
2013-06-27

SYSTEM AND METHOD FOR CONTROLLING PRESSURE OSCILLATION IN ANODE OF FUEL CELL STACK

#81
20130071769
2013-03-21

Fuel cell

#82
20130040214
2013-02-14

Fuel cell water management via reduced anode reactant pressure

#83
20130040211
2013-02-14

Method to correct for permeation uncertainties using a concentration sensor

#84
20130017458
2013-01-17

FUEL CELL SYSTEM AND OPERATION METHOD THEREOF

#85
20120315563
2012-12-13

Large-area demineralizer for fuel cell

#86
20120141898
2012-06-07

Fuel cell system

#87
20120070753
2012-03-22

FUEL CELL SYSTEM AND CONTROL SYSTEM FOR SAME

#88
20110236782
2011-09-29

FUEL CELL SYSTEM

#89
20110200896
2011-08-18

Fuel cell system and operating method of a fuel cell

#90
20110097636
2011-04-28

Disconnecting Procedure For Fuel Cell Systems

#91
20110086282
2011-04-14

Remedial start method in a fuel cell

#92
20110076580
2011-03-31

Fuel cell system, and method of stopping fuel cell system

#93
20110059382
2011-03-10

Anode loop pressure control in PEM fuel cell system

#94
20110033763
2011-02-10

Fuel cell system and reverse flow relief valve

#95
20110020722
2011-01-27

FUEL CELL AND BIPOLAR PLATE HAVING MANIFOLD SUMP

#96
20100304263
2010-12-02

Valve having valve element displaced by at least one of a movement of a diaphragm and a movement of an actuator, and fuel cell using the valve

#97
20100239926
2010-09-23

Preheating arrangement in a fuel cell apparatus

#98
20100221630
2010-09-02

Fuel cell system

#99
20100206455
2010-08-19

Method and apparatus for examining ion-conductive electrolyte membrane

#100
20100129689
2010-05-27

System and method for activating fuel cell

#101
20100068565
2010-03-18

VARIABLE FUEL PRESSURE CONTROL FOR A FUEL CELL

#102
20100047643
2010-02-25

FUEL CELL SYSTEM

#103
20100028726
2010-02-04

Method for supplying fuel gas to a gas chamber of a fuel cell and fuel cell

#104
20090269630
2009-10-29

Fuel cell system and its control method

#105
20090253003
2009-10-08

FUEL CELL SYSTEM AND METHOD OF SCAVENGING FUEL CELL SYSTEM

#106
20090186256
2009-07-23

RECEPTACLE

#107
20090169927
2009-07-02

Fuel cell system

#108
20090169926
2009-07-02

Method for stopping power generation of fuel cell system and fuel cell system including power generation stopping unit

#109
20090110971
2009-04-30

Method of stopping a solid polymer type fuel cell system

#110
20090104478
2009-04-23

Method for controlling the pressure in an anode of a fuel cell, and a fuel cell

#111
20090087700
2009-04-02

Operation of a Fuel Cell

#112
20090011299
2009-01-08

Fuel cell system for repressing reservoir water backflow

#113
20080261092
2008-10-23

Fuel Cell System

#114
20080254328
2008-10-16

Closed coolant loop with expansion device for a fuel cell system

#115
20080241629
2008-10-02

Fuel cell having fuel tank directly attached to anode allowing pump-free fuel delivery

#116
20080233442
2008-09-25

Starting Method of Fuel Cell and Fuel Cell System

#117
20080187791
2008-08-07

Fuel cell system and scavenging method therefor

#118
20080166611
2008-07-10

Fuel cell system with control of the pressure of the reactants within the system

#119
20080160361
2008-07-03

Fuel cell system and operation method thereof

#120
20080160360
2008-07-03

Fuel cell purge cycle apparatus and method

#121
20080081231
2008-04-03

Fuel cell system and method of controlling same

#122
20080038608
2008-02-14

Fuel cell system and method for controlling same

#123
20070292726
2007-12-20

Fuel Cell System And Method For Inspecting Gas Leakage Of Same

#124
20070269694
2007-11-22

Temperature zones in a solid oxide fuel cell auxiliary power unit

#125
20070116992
2007-05-24

Anode loop pressure control in PEM fuel cell system

#126
20070092769
2007-04-26

Electrochemical cells

#127
20070026280
2007-02-01

Fuel cell system and method of controlling gas pressure in fuel cell system

#128
20070026277
2007-02-01

Fuel cell system and method

#129
20070026269
2007-02-01

Relief valve, method of manufacturing relief valve, and fuel cell

#130
20070015014
2007-01-18

Fuel cell with control process for reactant pressure and flow

#131
20060280976
2006-12-14

Fuel cell system

#132
20060251943
2006-11-09

Polymer electrolyte fuel cell power generation system

#133
20060210851
2006-09-21

Fuel cell power generating system with learning control

#134
20060183010
2006-08-17

Electrochemical cells

#135
20060127713
2006-06-15

Temperature zones in a solid oxide fuel cell auxiliary power unit

#136
20060068243
2006-03-30

Method for controlling nitrogen fraction in a fuel cell

#137
20050227125
2005-10-13

Transient controls to improve fuel cell performance and stack durability

#138
20050221147
2005-10-06

Valve having valve element displaced by at least one of a movement of a diaphragm and a movement of an actuator, and fuel cell using the valve

#139
20050217178
2005-10-06

Fuel reforming device

#140
20050208358
2005-09-22

Solid polymer type fuel cell system for power generation

#141
20050164049
2005-07-28

Storing water in substrates for frozen, boot-strap start of fuel cells

#142
20050118475
2005-06-02

Reaction gas supply apparatus and method for fuel cell

#143
17360554
2024-11-12

Passive pressure swing system for fuel cell reactant recirculation