ClassID:

213499

H01M8/04567 - 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 the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function; Electric variables; Voltage of auxiliary devices, e.g. batteries, capacitors

Recent Application in this class:
#1
20260155413
2026-06-04

METHOD OF CONTROLLING OPENING DEGREE OF AIR FLOW RATE CONTROL VALVE IN FUEL CELL STACK AND APPARATUS

#2
20260066319
2026-03-05

CONTROL METHOD FOR FUEL CELL SYSTEM, CONTROL PROGRAM FOR FUEL CELL SYSTEM, FUEL CELL SYSTEM, AND MONOGENERATION DEVICE

#3
20250357513
2025-11-20

METHOD FOR RESTORING PERFORMANCE

#4
20250286091
2025-09-11

ANALYSIS METHOD, ANALYSIS DEVICE, AND POWER GENERATION SYSTEM

#5
20250266477
2025-08-21

FUEL CELL VEHICLE, METHOD OF REFRESHING THE SAME, AND RECORDING MEDIUM STORING PROGRAM TO EXECUTE THE METHOD

#6
20250262986
2025-08-21

HYDROGEN FUEL CELL ELECTRIC VEHICLE ENERGY MANAGEMENT

#7
20250260026
2025-08-14

SYSTEMS AND METHODS FOR PROVIDING HEAT CONTROL IN A MULTI-STACK FUEL CELL SYSTEM

#8
20250132571
2025-04-24

Electrical Power Generating System

#9
20250118970
2025-04-10

Remotely Controlled Electrical Power Generating System

#10
20250096293
2025-03-20

FUEL CELL SYSTEM

#11
20250096291
2025-03-20

Method and Device of Controlling Drain Valve in Fuel Cell, Controller, Fuel Cell System, and Medium

#12
20240322208
2024-09-26

FUEL CELL SYSTEM

#13
20240322207
2024-09-26

FUEL CELL POWER CONTROL SYSTEM AND METHOD

#14
20240297315
2024-09-05

FUEL CELL SYSTEM AND CONTROL METHOD THEREOF

#15
20240258545
2024-08-01

TREATMENT OF HYDROGEN- AND OXYGEN-CONTAINING RESIDUAL GASES OF FUEL CELLS

#16
20240088418
2024-03-14

ENERGY MANAGEMENT FOR POWER SYSTEM

#17
20240014426
2024-01-11

VEHICLE

#18
20240006636
2024-01-04

CHARGING AND DISCHARGING MECHANISM OF FUEL CELL SYSTEM TO SECONDARY BATTERY

#19
20230378763
2023-11-23

Electrical power generating system

#20
20230361575
2023-11-09

Remotely controlled electrical power generating system

#21
20230327156
2023-10-12

COMPRESSOR AND COMPRESSOR CONTROL METHOD

#22
20230290976
2023-09-14

CHEMICAL AND ELECTROCHEMICAL CELL ELECTRONICS PROTECTION SYSTEM

#23
20230282853
2023-09-07

METHOD AND SYSTEM FOR CONTROLLING AIR COMPRESSOR OF FUEL CELL SYSTEM

#24
20230271712
2023-08-31

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

#25
20230268533
2023-08-24

REDOX FLOW BATTERY SYSTEM AND METHOD FOR OPERATING REDOX FLOW BATTERY

#26
20230264580
2023-08-24

Method and apparatus for driving fuel cell-based vehicle

#27
20230197989
2023-06-22

Recovery control system of fuel cell and method thereof

#28
20230163332
2023-05-25

Fuel cell power control system and method

#29
20230103388
2023-04-06

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

#30
20230099226
2023-03-30

FUEL CELL SYSTEM

#31
20230045065
2023-02-09

Non-isolated single input dual-output bi-directional buck-boost DC-DC converter

#32
20220416275
2022-12-29

ELECTRICAL ENERGY SUPPLY SYSTEM FOR MOBILE PLATFORMS AND VEHICLE HAVING AN ELECTRICAL ENERGY SUPPLY SYSTEM

#33
20220399556
2022-12-15

FUEL CELL SYSTEM

#34
20220360088
2022-11-10

Electrical power generating system

#35
20220200085
2022-06-23

Fuel cell system and method for controlling fuel cell system

#36
20220166035
2022-05-26

Fuel cell system

#37
20220123557
2022-04-21

Remotely controlled electrical power generating system

#38
20220052361
2022-02-17

Fuel cell oxygen delivery system, method and apparatus for clean fuel electric aircraft

#39
20210351424
2021-11-11

Fuel cell system, non-transitory storage medium and control method for fuel cell system

#40
20210336281
2021-10-28

Fuel cell system and method for determining fuel cell stack reusability

#41
20210320353
2021-10-14

Fuel cell—battery hybrid system for transportation use

#42
20210273459
2021-09-02

Electrical power generating system

#43
20210184597
2021-06-17

Grid-connected power conversion system and control method thereof

#44
20210151782
2021-05-20

Redox flow battery system

#45
20210143456
2021-05-13

System and method for sensing fuel cell of vehicle

#46
20210104758
2021-04-08

Method of starting operation of fuel cell system

#47
20200303752
2020-09-24

Operating control method and control system of fuel cell stack

#48
20200243886
2020-07-30

Fuel cell system and method of controlling fuel cell system

#49
20200239149
2020-07-30

Fuel cell stack array

#50
20200239148
2020-07-30

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

#51
20200212465
2020-07-02

Method of controlling measurement of cell voltage of fuel cell and apparatus for executing the same

#52
20200144643
2020-05-07

System and method of controlling air compressor motor for fuel cell vehicle and system and method of controlling operation of fuel cell vehicle using same

#53
20190337403
2019-11-07

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

#54
20190207232
2019-07-04

Overload Protection Device

#55
20190193589
2019-06-27

Fuel Cell System

#56
20190146565
2019-05-16

DATA CENTER FUEL CELLS

#57
20190123366
2019-04-25

Fuel cell vehicle

#58
20190058401
2019-02-21

Power supply device, apparatus, and control method

#59
20190054839
2019-02-21

Method for operating a fuel cell arrangement and also a corresponding fuel cell arrangement

#60
20190044163
2019-02-07

FUEL CELL AND ASSOCIATED HEATING SYSTEM

#61
20180342747
2018-11-29

Method and system for controlling startup of fuel cell

#62
20180241058
2018-08-23

Fuel cell vehicle

#63
20180233793
2018-08-16

Fuel cell system

#64
20180175416
2018-06-21

Driving control method of fuel cell system

#65
20180166720
2018-06-14

Fuel cell system and secondary battery diagnosis method

#66
20180162233
2018-06-14

Drive system and vehicle

#67
20180026283
2018-01-25

Method for operating fuel cell vehicle

#68
20170324103
2017-11-09

INCORPORATED DEVICE AND METHOD FOR CONTROLLING INCORPORATED DEVICE

#69
20170310142
2017-10-26

Fuel cell system

#70
20170305297
2017-10-26

System and method for controlling start of fuel cell vehicle

#71
20170250424
2017-08-31

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

#72
20170187056
2017-06-29

FUEL CELL VEHICLE

#73
20170166081
2017-06-15

Method and system for controlling voltage of fuel cell in stop-mode of fuel cell vehicle

#74
20170110746
2017-04-20

Methods and systems for detecting leaks in a fuel cell stack

#75
20170077534
2017-03-16

Fuel cell regulation using loss recovery systems

#76
20160351983
2016-12-01

PASSIVE POWER MANAGEMENT AND BATTERY CHARGING FOR HYBRID FUEL CELL/BATTERY SYSTEM

#77
20150064589
2015-03-05

Fuel cell system and its control method

#78
20150037699
2015-02-05

Fuel cell assembly having feed-back sensor

#79
20140292084
2014-10-02

Method of controlling the operation of a hybrid system

#80
20140247053
2014-09-04

Method of utilizing power transistor of fuel cell stack diagnostic system

#81
20140057189
2014-02-27

Fuel cell startup apparatus comprising emergency air supplier and method

#82
20130169253
2013-07-04

Fuel cell system

#83
20120107709
2012-05-03

Fuel cell system and control method thereof

#84
20120062166
2012-03-15

Integrated fuel processor and fuel cell system control method

#85
20120028151
2012-02-02

METHOD FOR FUEL CELL SYSTEM CONTROL AND A FUEL CELL SYSTEM USING THE SAME

#86
20120021257
2012-01-26

Fuel cell system comprising voltage adjustment portion, control method for the fuel cell system, and vehicle equipped with the fuel cell system

#87
20120019190
2012-01-26

Passive power management and battery charging for a hybrid fuel cell / battery system

#88
20120015268
2012-01-19

Fuel cell system, control method for the fuel cell system, and electric vehicle equipped with the fuel cell system

#89
20120013289
2012-01-19

FUEL CELL SYSTEM, AND ELECTRIC VEHICLE EQUIPPED WITH THE FUEL CELL SYSTEM

#90
20120007545
2012-01-12

Fuel cell system, control method for the fuel cell system, and vehicle equipped with the fuel cell system

#91
20110244346
2011-10-06

Method of entering and exiting a regenerative/stand-by mode on a fuel cell system where the fuel cell is separated from the regenerative source by a blocking power diode

#92
20110236780
2011-09-29

Fuel cell system and method for controlling stoppage of fuel cell system

#93
20110223506
2011-09-15

Method for HV bus voltage control in fuel cell vehicles featuring HV lithium batteries

#94
20110217615
2011-09-08

FUEL CELL STABILISATION SYSTEM AND METHOD

#95
20110187298
2011-08-04

Fuel cell system and motor driving method

#96
20110171550
2011-07-14

METHOD FOR CONTROLLING FUEL CELL SYSTEM AND FUEL CELL SYSTEM USING THE SAME

#97
20110171500
2011-07-14

Power generating system and control method for the same

#98
20110151345
2011-06-23

Fuel cell assembly having feed-back sensor

#99
20110111318
2011-05-12

METHOD OF OPERATING A FUEL CELL/BATTERY PASSIVE HYBRID POWER SUPPLY

#100
20110027670
2011-02-03

APPARATUS FOR GENERATING ELECTRICITY FROM A CHEMICAL HYDRIDE

#101
20110018491
2011-01-27

Power supply control circuit

#102
20110003222
2011-01-06

Hydrogen passivation shut down system for a fuel cell power plant

#103
20110003215
2011-01-06

Fuel cell system capable of drying a fuel cell in a short time after a system stop instruction is used

#104
20100332063
2010-12-30

Fuel cell vehicle

#105
20100304244
2010-12-02

Solid oxide fuel cell device

#106
20100291450
2010-11-18

Control apparatus for starting fuel cell vehicle

#107
20100291445
2010-11-18

Fuel cell system and boost converter for fuel cell

#108
20100266923
2010-10-21

FUEL CELL SYSTEM WITH ELECTROCHEMICAL HYDROGEN PUMP AND METHOD OF OPERATING SAME

#109
20100266916
2010-10-21

Fuel cell system

#110
20100266914
2010-10-21

Fuel cell system

#111
20100221626
2010-09-02

Dual-power-supply system

#112
20100203409
2010-08-12

Fuel cell system and its control method

#113
20100131138
2010-05-27

On/off control method for air blower of fuel cell vehicle

#114
20100119879
2010-05-13

METHODS AND APPARATUS FOR STIMULATING AND MANAGING POWER FROM MICROBIAL FUEL CELLS

#115
20100055521
2010-03-04

Fuel cell system

#116
20100009225
2010-01-14

Fuel cell system and mobile body

#117
20100009219
2010-01-14

Idle stop-start control method of fuel cell hybrid vehicle

#118
20090297893
2009-12-03

MOBILE APPARATUS AND MOBILE PHONE

#119
20090261657
2009-10-22

Method and system of hybrid power management

#120
20090233129
2009-09-17

Method of starting operation of fuel cell system

#121
20090233127
2009-09-17

FUEL CELL SYSTEM

#122
20090226770
2009-09-10

Fuel cell system and AC impedance measurement method

#123
20090197129
2009-08-06

Fuel cell system having decreased deterioration during initiation

#124
20090186247
2009-07-23

Fuel cell power supply

#125
20090167090
2009-07-02

Energy supply system and method related thereto

#126
20090142630
2009-06-04

Fuel cell apparatus

#127
20090112384
2009-04-30

Startup sequence control method of fuel cell-super capacitor hybrid electric vehicle

#128
20090096464
2009-04-16

Electrical leakage detecting device for a fuel cell system

#129
20090081502
2009-03-26

Open-loop system and method for fuel cell stack start-up with low-voltage source

#130
20090081490
2009-03-26

Closed-loop method for fuel cell system start-up with low voltage source

#131
20090068520
2009-03-12

Fuel cell system and method of starting operation of fuel cell system

#132
20090008167
2009-01-08

Fuel cell vehicle, and method of supplying electric power

#133
20090008166
2009-01-08

Electric system for fuel cell, fuel cell vehicle, and method of supplying electric power

#134
20080257621
2008-10-23

Fuel cell vehicle system

#135
20080248351
2008-10-09

Fuel Cell System

#136
20080245588
2008-10-09

MOVING APPARATUS

#137
20080241610
2008-10-02

Hydrogen generating apparatus and fuel cell power generation system controlling amount of hydrogen generation

#138
20080238355
2008-10-02

FUEL CELL SYSTEM AND OPERATION METHOD THEREFOR

#139
20080193810
2008-08-14

Hydrogen generating apparatus and fuel cell power generation system

#140
20080182144
2008-07-31

Fuel cell control unit for limiting power output

#141
20080160370
2008-07-03

Adaptive Current Controller for a Fuel-Cell System

#142
20080118798
2008-05-22

Fuel cell system apparatus

#143
20080116843
2008-05-22

Fuel cell system and method for controlling operation of the fuel cell system

#144
20080107936
2008-05-08

Hydrogen passivation shut down system for a fuel cell power plant

#145
20080087479
2008-04-17

Power system of hybrid fuel cell bus and control method thereof

#146
20080038596
2008-02-14

Method and Device for Operational Control of Fuel Cell Modules

#147
20080026269
2008-01-31

System for generating electricity from a chemical hydride

#148
20070264541
2007-11-15

Method of operating fuel cell system and fuel cell system

#149
20070259229
2007-11-08

FUEL CELL ACTIVATION METHOD AND THE DEVICE THEREOF

#150
20070259218
2007-11-08

FUEL CELL CAPABLE OF POWER MANAGEMENT

#151
20070248857
2007-10-25

FUEL CELL SYSTEM

#152
20070212580
2007-09-13

Hybrid power supply device

#153
20070199747
2007-08-30

Control method for fuel cell vehicle, and fuel cell vehicle

#154
20070199746
2007-08-30

Hybrid power supply apparatus for battery replacement applications

#155
20070184316
2007-08-09

FUEL CELL ELECTRICITY MEASURING METHOD AND APPARATUS

#156
20070176762
2007-08-02

Fuel efficiency display device for fuel cell vehicle, and fuel efficiency displaying method for fuel cell vehicle

#157
20070141429
2007-06-21

Storing energy in a fuel cell system

#158
20070138996
2007-06-21

Charger, DC/DC converter including that charger, and control circuit thereof

#159
20070129859
2007-06-07

Control apparatus for fuel cell vehicle

#160
20070087232
2007-04-19

Capacitor hybrid fuel cell power generator

#161
20070087231
2007-04-19

METHOD AND APPARATUS FOR MULTIPLE MODE CONTROL OF VOLTAGE FROM A FUEL CELL SYSTEM

#162
20070077468
2007-04-05

Power supply apparatus with fuel cell and method of controlling the same

#163
20070077467
2007-04-05

Fuel cell system and method of correcting fuel cell current

#164
20070075587
2007-04-05

POWER CONVERTING APPARATUS FOR FUEL CELL AND METHOD THEREOF

#165
20070054166
2007-03-08

Fuel cell system and method of controlling electrical energy discharged in the fuel cell system

#166
20070042233
2007-02-22

Systems and methods for initiating auxiliary fuel cell system operation

#167
20070026277
2007-02-01

Fuel cell system and method

#168
20070013382
2007-01-18

Method for detection and diagnosis of isolation faults in fuel cell hybrid vehicles

#169
20060286418
2006-12-21

Fuel cell system for setting predetermined operation state when substitutional value control is impossible

#170
20060269805
2006-11-30

Liquid-type fuel cell system and control circuit of the same

#171
20060240291
2006-10-26

Power supply apparatus using fuel cell and method of controlling the same

#172
20060228599
2006-10-12

Fuel cell unit and method for controlling the same

#173
20060222916
2006-10-05

Mehotd for determining a maximum power point voltage of a fuel cell, as well as fuel cell control system and power controller used in the fuel cell control system

#174
20060222910
2006-10-05

Electric system for fuel cell, fuel cell vehicle, and method of supplying electric power

#175
20060222909
2006-10-05

Electric system for fuel cell, fuel cell vehicle, and method of supplying electric power

#176
20060170390
2006-08-03

Secondary battery charging system capable of preventing drop of charged electric power

#177
20060162973
2006-07-27

Hybrid power supply module

#178
20060159966
2006-07-20

Fuel cell system and method of stopping operation of the fuel cell system

#179
20060115701
2006-06-01

Insulating mount structure, insulation monitoring system, and insulation monitoring method for fuel cells

#180
20060105206
2006-05-18

Fuel cell power supply

#181
20060083963
2006-04-20

Hydrogen passivation shut down system for a fuel cell power plant

#182
20060083955
2006-04-20

Mobile type information terminal and self diagnosis method and operation method thereof

#183
20060078780
2006-04-13

Hydrogen passivation shut down system for a fuel cell power plant

#184
20060078773
2006-04-13

Method and system for controlling and recovering short duration bridge power to maximize backup power

#185
20060068242
2006-03-30

Electric power source apparatus using fuel cell and method of controlling the same

#186
20060055246
2006-03-16

Method and arrangement for controlling a switching connection between the electrical outputs of a fuel cell and an isolated electrical network

#187
20060035115
2006-02-16

Power supply and control method therefor

#188
20050287402
2005-12-29

AC impedance monitoring of fuel cell stack

#189
20050277003
2005-12-15

FCPM freeze start heater

#190
20050275983
2005-12-15

Protection circuits for hybrid power systems

#191
20050249989
2005-11-10

Apparatus and method for hybrid power module systems

#192
20050249988
2005-11-10

Apparatus and method for hybrid power module systems

#193
20050249985
2005-11-10

Hybrid power source

#194
20050233192
2005-10-20

Fuel cell system having secondary cell

#195
20050233189
2005-10-20

Power supply system, fuel pack constituting the system, and device driven by power generator and power supply system

#196
20050214606
2005-09-29

Power system for fuel cell, electronic equipment and electric power feeding method

#197
20050214602
2005-09-29

Load following algorithm for a fuel cell based distributed generation system

#198
20050197751
2005-09-08

Control device and method for fuel cell powered vehicle

#199
20050119842
2005-06-02

Load following algorithm for a fuel cell based system

#200
20050118475
2005-06-02

Reaction gas supply apparatus and method for fuel cell

#201
20050118472
2005-06-02

Power management system for hybrid fuel cell and battery driven electric vehicles

#202
20050112420
2005-05-26

Power supply device

#203
20050076075
2005-04-07

Method for determining specifications of fuel cell power generation system and fuel cell power generation system

#204
20050058865
2005-03-17

Self -thawing fuel cell

#205
20050058857
2005-03-17

Hybrid power system and method

#206
20050048330
2005-03-03

Electronic system and power supply method

#207
20050031917
2005-02-10

Hydrogen passivation shut down system for a fuel cell power plant

#208
17075451
2022-11-08

Power management system and method of operating the same

#209
15440534
2021-01-12

Power management system utilizing metastable hydrogen carrier and method of operating the same