ClassID:

213504

H01M8/04604 - 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 Power, energy, capacity or load

Sub-classes:
Recent Application in this class:
#1
20260121089
2026-04-30

POWER DISTRIBUTION USING ELECTROLYTE FLUID

#2
20260112663
2026-04-23

REDOX FLOW BATTERY AND METHOD FOR OPERATING SAME

#3
20250323288
2025-10-16

METAL-OXYGEN BATTERY AND METHOD OF USE THEREOF

#4
20250300206
2025-09-25

FUEL CELL SYSTEM

#5
20250260234
2025-08-14

FUEL CELL SYSTEM ARCHITECTURE FOR ARTIFICIAL INTELLIGENCE MODEL TRAINING

#6
20250260028
2025-08-14

COMPRESSION SYSTEM WITH GAS LEAK RECOVERY AND FUEL CELLS, AND METHOD

#7
20250246656
2025-07-31

FUEL CELL SYSTEM

#8
20250196722
2025-06-19

A METHOD FOR CONTROLLING OPERATION OF A FUEL CELL SYSTEM, FCS, AND AN ELECTRICAL ENERGY STORAGE SYSTEM, EES

#9
20250149603
2025-05-08

METHOD OF CONTROLLING OPERATION OF FUEL CELL TRIPLE COGENERATION SYSTEM

#10
20250070208
2025-02-27

STEADY AND TRANSIENT STATE OPERATION OF FUEL CELLS

#11
20250070204
2025-02-27

A METHOD FOR CONTROLLING A FUEL CELL SYSTEM

#12
20250062373
2025-02-20

A CONTROL UNIT

#13
20250006962
2025-01-02

A METHOD FOR DETERMINING A STARTING SEQUENCE FOR A FUEL CELL ARRANGEMENT COMPRISING A PLURALITY OF FUEL CELL SYSTEMS BASED ON SHUTDOWN DURATION TIME

#14
20240429412
2024-12-26

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

#15
20240363877
2024-10-31

HYDROGEN SUPPLY DEVICE

#16
20240332584
2024-10-03

REDOX MICROFLUIDIC ENERGY STORAGE SYSTEM AND METHOD

#17
20240297326
2024-09-05

ENERGY PRODUCTION SYSTEM

#18
20240291007
2024-08-29

METHOD FOR DIAGNOSING A FUEL CELL SYSTEM, SYSTEM CONTROL DEVICE FOR IMPLEMENTING SUCH A METHOD, AND FUEL CELL SYSTEM INCLUDING SUCH A SYSTEM CONTROL DEVICE

#19
20240282990
2024-08-22

FUEL CELL SYSTEM

#20
20240234762
2024-07-11

SYSTEMS AND METHODS FOR MONITORING A FUEL CELL

#21
20240194914
2024-06-13

METHOD FOR USING FUEL CELL SYSTEM AIR THROTTLE TO CONTROL HYBRID POWER SYSTEM

#22
20240120515
2024-04-11

FUEL CELL SYSTEM

#23
20240088421
2024-03-14

FLOW BATTERY SYSTEMS AND METHODS

#24
20240063411
2024-02-22

Hydrogen-producing fuel cell systems and methods of operating the same

#25
20240014416
2024-01-11

DISTRIBUTED FUEL CELL POWER SUPPLY CABINET

#26
20230361331
2023-11-09

METHOD FOR IRON PREFORMATION IN REDOX FLOW BATTERIES

#27
20230317995
2023-10-05

INFORMATION PROCESSING DEVICE AND VEHICLE

#28
20230299313
2023-09-21

FUEL CELL SYSTEM AND CONTROL METHOD THEREOF

#29
20230290981
2023-09-14

FUEL CELL SYSTEM

#30
20230282855
2023-09-07

POWER NET SYSTEM FOR FUEL CELLS AND METHOD FOR CONTROLLING THE SAME

#31
20230253590
2023-08-10

FUEL CELL SYSTEM AND CONTROL METHOD FOR FUEL CELL SYSTEM

#32
20230238557
2023-07-27

Systems and methods of capturing nitrogen from fuel cell

#33
20230231164
2023-07-20

Air tank and variable geometry air handling in hydrogen fuel cells

#34
20230223573
2023-07-13

A SYSTEM AND METHOD FOR GENERATING ELECTRICITY USING PYROLYSIS OF PLASTICS

#35
20230102812
2023-03-30

BIOGAS-UTILIZING METHANATION SYSTEM

#36
20230078213
2023-03-16

Cooling system in a fuel cell electric vehicle and method of controlling a cooling system in a fuel cell electric vehicle

#37
20230054074
2023-02-23

Method of controlling fuel cell

#38
20220255094
2022-08-11

Air tank and variable geometry air handling in hydrogen fuel cells

#39
20220228276
2022-07-21

Fuel cell energy circulative utilization system

#40
20220224232
2022-07-14

Power supply unit with current control

#41
20220169150
2022-06-02

FUEL CELL VEHICLE AND CONTROL STRATEGY BASED ON ARTIFICIAL BATTERY DISCHARGE LIMIT

#42
20220140371
2022-05-05

Redox flow battery

#43
20220106060
2022-04-07

HEALTH ASSESSMENT AND MONITORING SYSTEM AND METHOD FOR CLEAN FUEL ELECTRIC VEHICLES

#44
20210296669
2021-09-23

Control device, electric power supply device, work machine, control method, and computer readable recording medium

#45
20210135270
2021-05-06

Method for iron preformation in redox flow batteries

#46
20200400614
2020-12-24

In operando, non-invasive state-of-charge monitoring for redox flow batteries

#47
20200328440
2020-10-15

Method for electrical supply of an apparatus by an autonomous hybrid station

#48
20200321641
2020-10-08

Degradation-conscious control for PEM fuel cells

#49
20200136160
2020-04-30

SIMPLIFIED FUEL CELL SYSTEM, APPARATUS, AND PROCESS

#50
20200058949
2020-02-20

Apparatus and method for controlling hydrogen purging

#51
20190356004
2019-11-21

Fuel cell system

#52
20190334184
2019-10-31

Method and control unit for conditioning a fuel cell stack

#53
20190312432
2019-10-10

Advanced uninterruptable power module controller and method of operating same

#54
20190288311
2019-09-19

Fuel cell system and method for operating a fuel cell system

#55
20190280314
2019-09-12

Fuel cell system

#56
20190273274
2019-09-05

Power generation unit and control method of the same

#57
20190267644
2019-08-29

Fuel cell load cycling to support the electric grid

#58
20190237786
2019-08-01

Method and motor vehicle for supplying at least one fuel cell with fuel

#59
20190123368
2019-04-25

Power modulation for fuel cell powered datacenters

#60
20190115607
2019-04-18

Low flow control method and system for fuel cell

#61
20190006859
2019-01-03

SYSTEM AND METHOD FOR PROTECTING A BATTERY DURING SUDDEN LOAD REDUCTION

#62
20180375337
2018-12-27

Fuel cell system, external management apparatus, fuel cell apparatus, and control method for fuel cell apparatus

#63
20180183085
2018-06-28

Electrical power distribution system and method for a grid-tied reversible solid oxide fuel cell system

#64
20180151899
2018-05-31

Flow batteries having adjustable circulation rate capabilities and methods associated therewith

#65
20180145356
2018-05-24

Fuel cell system

#66
20180108928
2018-04-19

Method for power control of a fuel cell system in a vehicle

#67
20180048003
2018-02-15

Fuel cell system and control method for fuel cell system

#68
20180034076
2018-02-01

Fuel cell system

#69
20180026285
2018-01-25

Fuel cell system

#70
20180026284
2018-01-25

Fuel cell system with improved leak detection

#71
20170346114
2017-11-30

Method and apparatus for controlling pump speed of redox flow battery

#72
20170331138
2017-11-16

Fuel cell system and control method for the same

#73
20170263961
2017-09-14

Power supply system

#74
20170263956
2017-09-14

Fuel cell system and method for operating a fuel cell system

#75
20170214070
2017-07-27

Power modulation for fuel cell powered datacenters

#76
20170162891
2017-06-08

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

#77
20170092971
2017-03-30

Systems and methods for initiating voltage recovery in a fuel cell system

#78
20170077532
2017-03-16

Hydrogen feed and recirculation device for fuel cell system

#79
20170069922
2017-03-09

Fuel cell system including control of rotation speed of a gas pump

#80
20170012307
2017-01-12

REDOX FLOW BATTERY SYSTEM AND METHOD FOR OPERATING REDOX FLOW BATTERY

#81
20170005357
2017-01-05

Electrical power distribution system and method for a grid-tied reversible solid oxide fuel cell system

#82
20160380477
2016-12-29

Alternating current uninterruptible power supply system

#83
20160372777
2016-12-22

METHOD FOR DETERMINING THE STATE OF CHARGE OF A VANADIUM REDOX FLOW BATTERY

#84
20160369416
2016-12-22

System and method for transitioning a reversible solid oxide fuel cell system between generation and electrolysis modes

#85
20160344050
2016-11-24

Fuel cell system

#86
20160344048
2016-11-24

Fuel cell system and controlling method thereof

#87
20160285117
2016-09-29

Fuel cell system and method for controlling fuel cell system

#88
20160268621
2016-09-15

Fuel system using redox flow battery

#89
20160254562
2016-09-01

Methods for determining state of charge and calibrating reference electrodes in a redox flow battery

#90
20160240872
2016-08-18

Fuel cell system

#91
20160190621
2016-06-30

Fuel cell supply including information storage device and control system

#92
20160164125
2016-06-09

Electrochemical systems incorporating in situ spectroscopic determination of state of charge and methods directed to the same

#93
20160149239
2016-05-26

Portable Fuel Cell System Having a Fuel Cell System Controller

#94
20160141682
2016-05-19

Power supply system and voltage control method of fuel cell

#95
20160043414
2016-02-11

Methods for testing anode integrity during fuel cell vehicle operation

#96
20160006057
2016-01-07

Power generation system and method for operating power generation system

#97
20150280262
2015-10-01

Fuel cell system and control method

#98
20150244013
2015-08-27

Control device of fuel cell, fuel cell system and control method of fuel cell

#99
20150207512
2015-07-23

Power supply system and method for controlling power supply system

#100
20150180070
2015-06-25

Fuel cell system

#101
20150129081
2015-05-14

Fuel System Using Redox Flow Battery

#102
20150056531
2015-02-26

Fuel cell system

#103
20150004512
2015-01-01

FUEL CELL SYSTEM

#104
20140349144
2014-11-27

Fuel cell system and method for driving same

#105
20140315114
2014-10-23

Method and regulation apparatus for operating a fuel cell or a fuel cell stack

#106
20140305386
2014-10-16

Cogeneration system and method for controlling same

#107
20140288724
2014-09-25

Power supply control system and power supply control method

#108
20140248545
2014-09-04

Fuel cell system

#109
20140242490
2014-08-28

Energy management system, energy management apparatus, and power management method

#110
20140236370
2014-08-21

Fuel cell control using pseudo power consumption

#111
20140191733
2014-07-10

Fuel cell system having a safety mode

#112
20140154603
2014-06-05

Fuel cell apparatus and fuel cell system

#113
20140093801
2014-04-03

Automated cold storage protection for a fuel cell system

#114
20140081497
2014-03-20

System and method for controlling fuel cell system

#115
20140080018
2014-03-20

Fuel cell system and method of controlling the fuel cell system

#116
20140049206
2014-02-20

Fuel cell system for charging an electric vehicle

#117
20130337356
2013-12-19

FUEL CELL SYSTEM AND METHOD OF OPERATING THE SAME

#118
20130335000
2013-12-19

Efficiency based stand-by mode for fuel cell propulsion systems

#119
20130288148
2013-10-31

Fuel cell system

#120
20130209903
2013-08-15

Solid oxide fuel cell system for producing variable generated power based on power demand

#121
20130183599
2013-07-18

Solid oxide fuel cell system for producing variable generated power based on power demand

#122
20130154364
2013-06-20

Vanadium redox battery energy storage system

#123
20130140902
2013-06-06

FUEL CELL RECOVERY TIME SYSTEM

#124
20130108937
2013-05-02

Fuel cell system and operation method thereof

#125
20130106341
2013-05-02

Hybrid battery system for portable electronic devices

#126
20120328911
2012-12-27

System and method for optimizing efficiency and power output from a vanadium redox battery energy storage system

#127
20120326501
2012-12-27

Vehicular power source unit

#128
20120315559
2012-12-13

Apparatus for controlling hydrogen supply of fuel cell system and method for controlling the same

#129
20120274137
2012-11-01

Fuel cell system and control method therefor

#130
20120270125
2012-10-25

Fuel cell supply including information storage device and control system

#131
20120225329
2012-09-06

Fuel cell system

#132
20120156581
2012-06-21

System and method for operating a high temperature fuel cell as a back-up power supply with reduced performance decay

#133
20120082913
2012-04-05

System and method for determining a state of operational readiness of a fuel cell backup system of a nuclear reactor system

#134
20110223505
2011-09-15

Adaptive method for conversion of external power request to current setpoint to a fuel cell system based on stack performance

#135
20110190959
2011-08-04

Fuel cell system

#136
20110177405
2011-07-21

FUEL CARTRIDGE AND HYDROGEN STORAGE METHOD

#137
20110143242
2011-06-16

Electrochemical system having multiple independent circuits

#138
20110123889
2011-05-26

Fuel cell supply including information storage device and control system

#139
20110045367
2011-02-24

Fuel Cell Supply System, Fuel Cell System and Method of Operating the Same

#140
20110020719
2011-01-27

Fuel cell system and method of controlling the same

#141
20110008699
2011-01-13

Fuel cell with control unit for recirculating fuel

#142
20100323264
2010-12-23

Fuel system using redox flow battery

#143
20100320960
2010-12-23

Fuel cell system and control method thereof

#144
20100279187
2010-11-04

Fuel cell system and fuel cell vehicle

#145
20100273072
2010-10-28

Fuel cell system

#146
20100266918
2010-10-21

Fuel cell stack and fuel cell system with plurality of generation modules

#147
20100261083
2010-10-14

Power supply apparatus

#148
20100248049
2010-09-30

Fuel cell system with interruption control

#149
20100239935
2010-09-23

Fuel cell system and fuel cell vehicle

#150
20100203406
2010-08-12

Fuel cell power generating system and fuel cell power generating system operating method

#151
20100136449
2010-06-03

Power supply apparatus

#152
20100136440
2010-06-03

FUEL CELL APPARATUS AND FUEL CELL SYSTEM

#153
20100129690
2010-05-27

Vehicular power source unit

#154
20100112400
2010-05-06

Fuel cell supply including information storage device and control system

#155
20100104906
2010-04-29

FUEL CELL POWER SUPPLY DEVICE

#156
20100090642
2010-04-15

POWER ADAPTOR FOR PORTABLE FUEL CELL SYSTEM

#157
20100068567
2010-03-18

Fuel cell system having output voltage corrector

#158
20100068566
2010-03-18

METHOD FOR MINIMIZING MEMBRANE ELECTRODE DEGRADATION IN A FUEL CELL POWER PLANT

#159
20100049458
2010-02-25

Electronic equipment and power management method for the electronic equipment, and power source unit

#160
20100003547
2010-01-07

Method for supplying fuel to fuel cell

#161
20090269633
2009-10-29

Hydrogen gas supply device and fuel cell apparatus

#162
20090253000
2009-10-08

System and method for operating a high temperature fuel cell as a back-up power supply with reduced performance decay

#163
20090246596
2009-10-01

Fuel cell system for charging an electric vehicle

#164
20090230767
2009-09-17

Power supply system, multiple dwelling, and computer program

#165
20090179609
2009-07-16

HV Battery Equalization Charge During Driving Operation in Fuel Cell Hybrid Vehicles

#166
20090169937
2009-07-02

Fuel cell system and mobile body

#167
20090152953
2009-06-18

Hybrid Power Supply Apparatus with Fuel Cell Output Control

#168
20090123797
2009-05-14

Efficient micro fuel cell systems and methods

#169
20080292918
2008-11-27

Electrochemical system having multiple independent circuits

#170
20080223067
2008-09-18

Fuel cell system and air conditioner using the same

#171
20080171241
2008-07-17

MICRO FUEL CELL SYSTEM START UP AND SHUT DOWN SYSTEMS AND METHODS

#172
20080138677
2008-06-12

Distributed fuel cell network

#173
20080044693
2008-02-21

Fuel cell system and method for controlling current

#174
20080038604
2008-02-14

Control unit for fuel-cell power generation apparatus, and control method, control program and computer-readable record medium with control program for the same

#175
20080038601
2008-02-14

EFFICIENT MICRO FUEL CELL SYSTEMS AND METHODS

#176
20070287042
2007-12-13

Cathode transient humidity control in a fuel cell system

#177
20070259230
2007-11-08

Fuel cell assembly using multiple fuel cell stacks and control method therefor

#178
20070248857
2007-10-25

FUEL CELL SYSTEM

#179
20070193289
2007-08-23

Fuel cell power generation refrigerating system

#180
20070166583
2007-07-19

FUEL CELL SYSTEM AND OPERATING METHOD THEREOF

#181
20070128476
2007-06-07

Method and apparatus for controlling a combined heat and power fuel cell system

#182
20070111061
2007-05-17

Fuel cell and voltage supply method

#183
20070111045
2007-05-17

Fuel cell power generating system, method for controlling fuel cell power generation, and fuel cell power generating apparatus

#184
20070104984
2007-05-10

Method for controlling peripheral system and fuel cell system using the same

#185
20070072015
2007-03-29

Fixed IDC operation of fuel cell power plant

#186
20060243045
2006-11-02

Fuel gauge for fuel cartridges

#187
20060192523
2006-08-31

Electronic equipment and power management method for the electronic equipment, and power source unit

#188
20060110639
2006-05-25

Fuel cell with a regulated output

#189
20060068241
2006-03-30

Information processing apparatus system, fuel cell unit, and display method thereof

#190
20060052916
2006-03-09

Gasoline fuel cell power system transient control

#191
20060051649
2006-03-09

Fuel cell system

#192
20060051633
2006-03-09

Fuel cell system

#193
20060046126
2006-03-02

Fuel cell and information terminal carrying the same

#194
20060046107
2006-03-02

System for fuel cell power plant load following and power regulation

#195
20060035115
2006-02-16

Power supply and control method therefor

#196
20060019141
2006-01-26

Fuel supply method for direct methanol fuel cell

#197
20060014058
2006-01-19

Method and apparatus for controlling a combined heat and power fuel cell system

#198
20060008689
2006-01-12

Fuel cell system

#199
20060003199
2006-01-05

Method and apparatus for controlling a combined heat and power fuel cell system

#200
20050287403
2005-12-29

Method and apparatus for controlling a combined heat and power fuel cell system

#201
20050280392
2005-12-22

Fuel cell power adapter for computer system

#202
20050275983
2005-12-15

Protection circuits for hybrid power systems

#203
20050249992
2005-11-10

Power supply system and abnormal detection method for the power supply system

#204
20050249985
2005-11-10

Hybrid power source

#205
20050189035
2005-09-01

Fuel container, fuel supply method, fuel filling method, and fuel cell system

#206
20050186455
2005-08-25

Micro fuel cell system start up and shut down systems and methods

#207
20050164055
2005-07-28

Fuel cell system and power generating method in fuel cell system

#208
20050158614
2005-07-21

System and method for optimizing efficiency and power output from a vanadium redox battery energy storage system

#209
20050156431
2005-07-21

Vanadium redox battery energy storage and power generation system incorporating and optimizing diesel engine generators

#210
20050147854
2005-07-07

Fuel cell system

#211
20050139399
2005-06-30

Hybrid electric propulsion system, hybrid electric power pack and method of optimizing duty cycle

#212
20050136311
2005-06-23

Power generation control system, power generation control method, program, and medium

#213
20050130012
2005-06-16

Liquid residual quantity detecting method, liquid residual quantity detecting device, program for implementing the method, and storage medium storing the program

#214
20050129996
2005-06-16

Regenerative electrochemical cell system and method for use thereof

#215
20050119842
2005-06-02

Load following algorithm for a fuel cell based system

#216
20050118468
2005-06-02

Fuel cell supply including information storage device and control system

#217
20050115312
2005-06-02

Fuel gauge for fuel cartridges

#218
20050112419
2005-05-26

Controlling solid oxide fuel cell operation

#219
20050095471
2005-05-05

Method of operating a hybrid power system within a state of charge window

#220
20050084724
2005-04-21

Regenerative compressor motor control for a fuel cell power system

#221
20050084721
2005-04-21

Power supply system and fuel cell unit

#222
20050079392
2005-04-14

Fuel cell apparatus and method of controlling the same

#223
20050064251
2005-03-24

Electrochemical probe for screening multiple-cell arrays

#224
20050049757
2005-03-03

Cogeneration system, operation controller for cogeneration facility, and operation program for cogeneration facility

#225
20050048337
2005-03-03

Fuel-cell power generation system and control method therefor

#226
20050019629
2005-01-27

Power supply system, multiple dwelling, and computer program

#227
20050019621
2005-01-27

Power supply system

#228
20050014040
2005-01-20

Fuel preheat in fuel cells and portable electronics

#229
20050008909
2005-01-13

Efficient micro fuel cell systems and methods

#230
18077112
2023-12-26

Fuel cell system air throttle for hybrid power control