ClassID:

213540

H01M8/04873 - 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; Electric variables; Voltage of the individual fuel cell

Recent Application in this class:
#1
20260142208
2026-05-21

MICROBIAL FUEL CELL MULTIPLEXER APPARATUS, SYSTEM AND METHOD

#2
20260131700
2026-05-14

COMPUTER SYSTEM AND A METHOD FOR CONTROLLING A FUEL CELL SYSTEM

#3
20260106195
2026-04-16

REGENERATION METHODS AND FUEL CELL SYSTEM

#4
20260100394
2026-04-09

POWER SOURCE ASSEMBLY FOR ELECTRIC MACHINE

#5
20260011759
2026-01-08

FLOW BATTERY BUBBLE DETECTION SYSTEM

#6
20250372679
2025-12-04

APPARATUS FOR VEHICLE CONTROL AND METHOD THEREOF

#7
20250357514
2025-11-20

UNIFORM DISTRIBUTION OF SHUNT CURRENTS IN FLOW BATTERY

#8
20250349870
2025-11-13

EMITTERS FOR CELL VOLTAGE MONITORING

#9
20250246657
2025-07-31

FUEL CELL ACTIVATION APPARATUS

#10
20250202268
2025-06-19

FUEL CELL SYSTEM

#11
20250167270
2025-05-22

METHOD FOR CONTROLLING A FUEL CELL AT VERY LOW PARTIAL PRESSURES UP TO NULL

#12
20240322207
2024-09-26

FUEL CELL POWER CONTROL SYSTEM AND METHOD

#13
20240014423
2024-01-11

AIR SUPPLY SYSTEM FOR FUEL CELLS AND METHOD FOR CONTROLLING THE SAME

#14
20230378502
2023-11-23

APPARATUS FOR CONTROLLING MULTI-MODULE FUEL CELL SYSTEM AND METHOD THEREOF

#15
20230352711
2023-11-02

SYSTEM FOR SUPPLYING HYDROGEN AND METHOD FOR CONTROLLING THE SAME

#16
20230317989
2023-10-05

POWER SUPPLY SYSTEM, CONTROL METHOD, AND PROGRAM

#17
20230307678
2023-09-28

ACTIVATION METHOD FOR FUEL CELL AND DEVICE THEREFOR

#18
20230290969
2023-09-14

HYDROGEN SYSTEM AND HYDROGEN SYSTEM OPERATING METHOD

#19
20230271712
2023-08-31

Fuel cells configured to deliver bi-polar high voltage DC power

#20
20230268531
2023-08-24

HIGH-TEMPERATURE ANION-EXCHANGE MEMBRANE FUEL CELL

#21
20230261519
2023-08-17

POWER SOURCE COMMUNICATION WITH DOWNSTREAM DEVICE BY CHANGING OUTPUT VOLTAGE ON A POWER BUS

#22
20230261225
2023-08-17

Apparatus for Converting Power of Fuel Cell for Power Generation and Method Thereof

#23
20230170507
2023-06-01

METHOD FOR CONTROLLING FUEL CELL SYSTEM, FUEL CELL SYSTEM, AND FUEL CELL VEHICLE

#24
20230163334
2023-05-25

CATALYST DETERIORATION SUPPRESSION DEVICE

#25
20230163332
2023-05-25

Fuel cell power control system and method

#26
20230084323
2023-03-16

Method for controlling fuel cell device

#27
20230070203
2023-03-09

Power supply unit capable of reducing possibility of overcurrent and current shortage

#28
20220399556
2022-12-15

FUEL CELL SYSTEM

#29
20220384824
2022-12-01

Fuel cell system

#30
20220359895
2022-11-10

SYSTEMS AND METHODS FOR REGULATING VOLTAGE FOR HYDROGEN-ELECTRIC ENGINES

#31
20220352533
2022-11-03

System and method for operating fuel cell

#32
20220320551
2022-10-06

Method of controlling fuel battery system

#33
20220311030
2022-09-29

Fuel cell system and control method for fuel cell system

#34
20220293982
2022-09-15

FUEL CELL SYSTEM

#35
20220293981
2022-09-15

Fuel cell system

#36
20220263420
2022-08-18

Electronic circuit arrangement for a fuel cell arrangement and fuel cell arrangement

#37
20220140372
2022-05-05

Power generation control system and method of a fuel cell

#38
20210351422
2021-11-11

Fuel cell system and method of controlling fuel cell system

#39
20210328243
2021-10-21

Fuel cell system

#40
20210320312
2021-10-14

METHOD AND DEVICE FOR PREDICTING SERVICE LIFE AND REMAINING LIFE OF FUEL CELL

#41
20210265648
2021-08-26

FUEL CELL SYSTEM AND METHOD OF CONTROLLING FUEL CELL SYSTEM

#42
20210083310
2021-03-18

Regeneration of flow battery

#43
20210083306
2021-03-18

Operation control system and method of fuel cell vehicle

#44
20210075037
2021-03-11

Supply device having a fuel cell device and a battery, and method for frost-starting a supply device

#45
20210020971
2021-01-21

Closed anode fuel cell startup method

#46
20200369166
2020-11-26

Fuel cell vehicle

#47
20200328442
2020-10-15

Fuel cell system

#48
20200282848
2020-09-10

Fuel cell system

#49
20200253520
2020-08-13

Self-powered biosensors

#50
20200251761
2020-08-06

Fuel cell system

#51
20200239148
2020-07-30

Fuel cells configured to deliver bi-polar high voltage DC power

#52
20200227762
2020-07-16

FUEL CELL SYSTEM AND CONTROL METHOD THEREFOR

#53
20200185744
2020-06-11

Fuel cell system and vehicle

#54
20200168930
2020-05-28

Method of measuring impedance of fuel cell stack in vehicle

#55
20200161974
2020-05-21

CURRENT CONTROL SYSTEM, FUEL CELL SYSTEM, AND METHOD OF CONTROLLING BOOST CONVERTER

#56
20200136423
2020-04-30

Control of DC voltage distribution system

#57
20200136161
2020-04-30

Method and system to modify the performance of a redox flow battery

#58
20200099071
2020-03-26

Aging method of fuel cell

#59
20200076200
2020-03-05

Power source communication with downstream device by changing output voltage on a power bus

#60
20200075974
2020-03-05

Closed anode fuel cell startup method

#61
20200067119
2020-02-27

Fuel cell system

#62
20200058950
2020-02-20

BATTERY DEVICE

#63
20190337403
2019-11-07

Electrical vehicle system with converters to share power between fuel, cell, high voltage battery and low voltage battery

#64
20190305347
2019-10-03

Fuel cell activation method

#65
20190280317
2019-09-12

Fuel cell system and oxide layer removal method

#66
20190252702
2019-08-15

Aging device for fuel cell stack

#67
20190193589
2019-06-27

Fuel Cell System

#68
20190190046
2019-06-20

Fuel cell system and control method of fuel cell system

#69
20190165439
2019-05-30

FUEL CELL SYSTEM AND CONTROL METHOD FOR FUEL CELL SYSTEM

#70
20190131639
2019-05-02

Electrolyte storage tank, flow battery, box-type flow battery system and charge-discharge control method of flow battery

#71
20190006687
2019-01-03

METHOD OF AND APPARATUS FOR ACTIVATING FUEL CELL

#72
20180325429
2018-11-15

Method for transdermal measurement of volatile anesthetics

#73
20180323456
2018-11-08

Electrochemical cell and method of operation

#74
20180277866
2018-09-27

Method for repairing a fuel cell stack

#75
20180229622
2018-08-16

Power conditioning system and control method therefor

#76
20180198144
2018-07-12

Method and system for controlling energy supply in fuel cell vehicle

#77
20180175415
2018-06-21

Closed anode fuel cell startup method

#78
20180162233
2018-06-14

Drive system and vehicle

#79
20180108927
2018-04-19

Fuel cell system and method for controlling the same

#80
20180069254
2018-03-08

Shut down system and control method of fuel cell vehicle

#81
20180026463
2018-01-25

Apparatus and method to apply voltage to fuel cell stack from high voltage system for usage during diagnostic tests

#82
20180026282
2018-01-25

Restarting system, controller and restarting method for fuel cell vehicle

#83
20170373334
2017-12-28

Fuel cell system

#84
20170365867
2017-12-21

Voltage control system with addition term and fuel cell system

#85
20170352904
2017-12-07

Fuel cell assembly and associated method of operation

#86
20170331125
2017-11-16

Constant voltage control method and system of fuel cell vehicle

#87
20170324100
2017-11-09

Fuel cell multifunction cathode valve

#88
20170305297
2017-10-26

System and method for controlling start of fuel cell vehicle

#89
20170271695
2017-09-21

Intrinsically safe bleed-down circuit and control strategy for fuel cell systems

#90
20170250424
2017-08-31

Voltage control system, fuel cell system, and control method for voltage control system

#91
20170214071
2017-07-27

Fuel cell unit and vehicle having fuel cell unit

#92
20170207470
2017-07-20

Electrochemical cell and method of operation

#93
20170187052
2017-06-29

Hydrogen purging device and method for fuel cell system

#94
20170162891
2017-06-08

CONTROL METHOD FOR FUEL CELL SYSTEM, FUEL CELL SYSTEM, AND POWER CONTROL DEVICE

#95
20170117571
2017-04-27

In-vehicle fuel cell stack

#96
20170047603
2017-02-16

METHOD OF CONTROLLING FUEL CELL SYSTEM, METHOD OF CONTROLLING FUEL CELL AUTOMOBILE, AND FUEL CELL AUTOMOBILE

#97
20170025692
2017-01-26

Electrochemical hydrogen sensor for global/local hydrogen starvation detection in PEM fuel cells

#98
20160380285
2016-12-29

Fuel cell system

#99
20160351928
2016-12-01

Fuel cell system and control method for fuel cell system

#100
20160226090
2016-08-04

Solid polymer power generation or electrolysis method and system

#101
20160156084
2016-06-02

APPARATUS AND METHOD FOR CONTROLLING CONVERTER

#102
20160141689
2016-05-19

Fuel cell system and fuel cell control method

#103
20150380788
2015-12-31

Fuel cell system and fuel cell automobile

#104
20150380755
2015-12-31

FUEL CELL SYSTEM AND FUEL CELL VEHICLE

#105
20150318567
2015-11-05

Flow battery with voltage-limiting device

#106
20150286234
2015-10-08

Responding to positive rate of change of fuel cell voltage during power reduction transitions

#107
20150255815
2015-09-10

FUEL CELL SYSTEM

#108
20150249254
2015-09-03

FUEL CELL SYSTEM

#109
20150180070
2015-06-25

Fuel cell system

#110
20150125772
2015-05-07

FUEL CELL SYSTEM

#111
20150086892
2015-03-26

Battery comprising a plurality of elecrochemical cells and, for each cell, a device for controlling the voltage across the terminals of said cell

#112
20150086890
2015-03-26

Fuel cell system

#113
20150064589
2015-03-05

Fuel cell system and its control method

#114
20150004507
2015-01-01

FUEL CELL APPARATUS

#115
20140272651
2014-09-18

FUEL CELL SYSTEM

#116
20140159735
2014-06-12

Device for monitoring the voltage output by the cells of an electrochemical generator

#117
20140072893
2014-03-13

Powering a fuel cell stack during standby

#118
20130320910
2013-12-05

Controlling PEM fuel cell voltage during power transitions and idling

#119
20130295477
2013-11-07

Fuel cell system including a fuel cell and a controller for controlling water vapor amount or average flow rate of a fuel gas

#120
20130171529
2013-07-04

Method for activating fuel cell

#121
20130052548
2013-02-28

Process for operating a high temperature fuel cell stack

#122
20130002232
2013-01-03

Frame sequence for a cell voltage measurement system with a low probability of natural occurrence

#123
20120321976
2012-12-20

Controlling fuel cell

#124
20120308850
2012-12-06

Method for managing the operation of a hybrid system

#125
20120276460
2012-11-01

Fuel cell system and method of stopping fuel cell system

#126
20120237800
2012-09-20

Preventing corrosion in a fuel cell

#127
20120225329
2012-09-06

Fuel cell system

#128
20120189876
2012-07-26

FUEL CELL PURGE SYSTEM

#129
20120070756
2012-03-22

Fuel cell system and method of controlling fuel cell system

#130
20120020128
2012-01-26

Fuel cell system

#131
20120013185
2012-01-19

FUEL CELL SYSTEM

#132
20110217611
2011-09-08

Fuel cell system

#133
20110171547
2011-07-14

Low power control of fuel cell open circuit voltage

#134
20110129751
2011-06-02

Fuel cell system and method for recovering performance of a fuel cell

#135
20110129750
2011-06-02

DIRECT METHANOL FUEL CELL AND ELECTRONIC DEVICE

#136
20110070506
2011-03-24

RECHARGEABLE ELECTROCHEMICAL CELL SYSTEM WITH A CHARGING ELECTRODE CHARGE/DISCHARGE MODE SWITCHING IN THE CELLS

#137
20100248049
2010-09-30

Fuel cell system with interruption control

#138
20100233558
2010-09-16

Method to reduce/eliminate shunt current corrosion of wet end plate in PEM fuel cells

#139
20100228535
2010-09-09

Simulator of SOFC for electric characteristics

#140
20100203409
2010-08-12

Fuel cell system and its control method

#141
20100173211
2010-07-08

Fuel cell system and fuel cell power managing method

#142
20100151341
2010-06-17

Fuel cell system

#143
20100136447
2010-06-03

Fuel cell system

#144
20100112401
2010-05-06

Fuel cell system, electrode catalyst degradation judgment method, and moving body

#145
20100068574
2010-03-18

Fuel cell system and power supply control method

#146
20090321271
2009-12-31

Method of Pumping Combustible Gas

#147
20090274937
2009-11-05

FUEL CELL SYSTEM WITH CIRCUIT MODULES

#148
20090047556
2009-02-19

FUEL CELL SYSTEM

#149
20090029210
2009-01-29

Low-Temperature Fuel-Cell Stack and Method of Operating Same

#150
20080241619
2008-10-02

FUEL CELL APPARATUS

#151
20080220300
2008-09-11

Method and apparatus for controlling an integrated fuel cell system

#152
20080220294
2008-09-11

Individual cell shorting during startup and shutdown using an integrated switch

#153
20080131741
2008-06-05

Fuel cell system

#154
20080032163
2008-02-07

Preventing corrosion during start up and shut down of a fuel cell

#155
20070212579
2007-09-13

Fuel Cell System

#156
20060249399
2006-11-09

Cleaning (de-poisining) PEMFC electrodes from strongly adsorbed species on the catalyst surface

#157
20060222917
2006-10-05

Fuel cell system

#158
20060093880
2006-05-04

Fuel cell system and method of controlling idle stop of the fuel cell system

#159
20050282049
2005-12-22

Fuel cell aging method and apparatus

#160
20050225282
2005-10-13

Giant magnetoresistive cell monitoring

#161
20050110453
2005-05-26

Dynamic fuel cell system management controller

#162
20050074655
2005-04-07

Fuel cell

#163
20050068002
2005-03-31

Cell unit and power supply control method