ClassID:

213500

H01M8/04574 - 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 Current

Sub-classes:
Recent Application in this class:
#1
20260121092
2026-04-30

Fuel Cell Apparatus

#2
20260092380
2026-04-02

ELECTROLYZER AND METHOD OF USE

#3
20260005273
2026-01-01

SYSTEM AND METHOD FOR THERMALLY REGULATING A SOLID OR POLYMER ELECTROLYTE IN AN ELECTROCHEMICAL DEVICE

#4
20250336992
2025-10-30

COMBINED PREDICTION METHOD FOR PROTON EXCHANGE MEMBRANE (PEM) DEVICE, APPARATUS, MEDIUM, AND PRODUCT

#5
20250309296
2025-10-02

FUEL CELL SYSTEM AND METHOD OF CONTROLLING SAME

#6
20250277871
2025-09-04

METHODS AND SYSTEMS FOR STATE OF HEALTH (SOH) MONITORING IN FUEL CELLS

#7
20250246656
2025-07-31

FUEL CELL SYSTEM

#8
20250246652
2025-07-31

REDOX FLOW BATTERY SYSTEM AND METHOD FOR OPERATING SAME

#9
20250201876
2025-06-19

ADAPTIVE PURGING FOR A FUEL CELL SYSTEM

#10
20250079484
2025-03-06

FUEL CELL SYSTEM

#11
20240372116
2024-11-07

METHOD AND APPARATUS FOR TRANSMITTING CURRENT AND VOLTAGE SIGNALS OF FUEL CELL BASED ON CONNECTOR

#12
20240262253
2024-08-08

ELECTRIC POWER CONTROL APPARATUS, FUEL CELL SYSTEM, VEHICLE, AND RECORDING MEDIUM

#13
20240241179
2024-07-18

POWER SUPPLY SYSTEM AND FUEL CELL POWER GENERATION PERFORMANCE DETECTION DEVICE AND CONTROL METHOD THEREOF

#14
20240186547
2024-06-06

FUEL CELL VIRTUAL SENSOR

#15
20240145746
2024-05-02

METAL FUEL FLOW BATTERY MANAGEMENT SYSTEM

#16
20240145745
2024-05-02

ELECTROLYZER AND METHOD OF USE

#17
20240063410
2024-02-22

POWER DELIVERY SYSTEM AND METHOD

#18
20240021856
2024-01-18

SYSTEMS AND METHODS OF USING AN ENERGY STORAGE DEVICE TO ASSIST AN EJECTOR

#19
20230395832
2023-12-07

FUEL CELL POWER GENERATION SYSTEM AND CONTROL METHOD OF FUEL CELL POWER GENERATION SYSTEM

#20
20230327158
2023-10-12

FUEL CELL SYSTEM

#21
20230327157
2023-10-12

FUEL CELL SYSTEM

#22
20230311712
2023-10-05

INFORMATION PROCESSING DEVICE AND VEHICLE

#23
20230311710
2023-10-05

FUEL CELL VEHICLE AND PREDICTION METHOD

#24
20230290981
2023-09-14

FUEL CELL SYSTEM

#25
20230290977
2023-09-14

PERFORMANCE EVALUATION APPARATUS OF FUEL CELL ELECTRODE

#26
20230275250
2023-08-31

REDOX FLOW BATTERY WITH FLOATING POWER MODULE UNDER IMBALANCED CHARGE CONDITIONS

#27
20230264580
2023-08-24

Method and apparatus for driving fuel cell-based vehicle

#28
20220416269
2022-12-29

Systems and methods of using an energy storage device to assist an ejector

#29
20220393203
2022-12-08

Electrolyzer and method of use

#30
20220384827
2022-12-01

Fuel Cell System of Mobility and Method for Controlling the Same

#31
20220246960
2022-08-04

Apparatus having at least one fuel cell

#32
20220166042
2022-05-26

Method and circuit arrangement for setting an operating strategy for a fuel cell system

#33
20220106060
2022-04-07

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

#34
20210408564
2021-12-30

Fuel cell system

#35
20210376358
2021-12-02

Fuel cell system

#36
20210296669
2021-09-23

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

#37
20210210775
2021-07-08

Power delivery system and method

#38
20210109043
2021-04-15

Device, system and method for X-ray diffraction analysis of an electrode of an electrochemical cell, at operating temperature and under current

#39
20200220185
2020-07-09

Electrolyzer and method of use

#40
20200168929
2020-05-28

Power supply system and control method thereof

#41
20200112040
2020-04-09

Power delivery system and method

#42
20190288311
2019-09-19

Fuel cell system and method for operating a fuel cell system

#43
20190229355
2019-07-25

Method and apparatus for controlling water flooding failure in fuel cell dual-stack system

#44
20190190048
2019-06-20

Systems and methods for acquisition, parameterization, and validation of fuel cell polarization data

#45
20190157693
2019-05-23

Diagnostic system, fuel cell system having a diagnostic system, and method for determining cathode gas contamination

#46
20190020044
2019-01-17

Electrochemical device comprising a hydrogen sensor

#47
20190018067
2019-01-17

Artificial intelligent fuel cell system

#48
20180366753
2018-12-20

Fuel cell system and injection control method

#49
20180198141
2018-07-12

Method to detect fuel cell gas leak

#50
20180159154
2018-06-07

POWER GENERATION APPARATUS, POWER GENERATION SYSTEM, AND CONTROL METHOD FOR POWER GENERATION SYSTEM

#51
20180151899
2018-05-31

Flow batteries having adjustable circulation rate capabilities and methods associated therewith

#52
20170365867
2017-12-21

Voltage control system with addition term and fuel cell system

#53
20170279140
2017-09-28

System and method for condition monitoring of redox flow batteries using data analytics

#54
20170214068
2017-07-27

Apparatus for measuring an impedance of fuel cell and method of measuring an impedance of fuel cell

#55
20170212067
2017-07-27

Apparatus for assessing the quality of membrane electrode assemblies

#56
20170179503
2017-06-22

Fuel cell system, operating method thereof and fuel cell power plant

#57
20170104231
2017-04-13

Fuel cell system and performance improvement method of fuel cell system

#58
20170098837
2017-04-06

Determination of a spatial distribution of an electrical production parameter of an electrochemical cell

#59
20170082696
2017-03-23

Determining of a spatial distribution of the electrical contact resistance of an electrochemical cell

#60
20170025689
2017-01-26

Fuel cell system

#61
20170012333
2017-01-12

Electrochemical battery and method of operating the same

#62
20170012305
2017-01-12

Fuel cell system

#63
20170005350
2017-01-05

SYSTEMS AND METHODS FOR ACQUISITION, PARAMETERIZATION, AND VALIDATION OF FUEL CELL POLARIZATION DATA

#64
20160372770
2016-12-22

Fuel cell system and method for controlling the same

#65
20160254554
2016-09-01

Fuel cell system and method for controlling fuel cell system

#66
20160218381
2016-07-28

Fast starting fuel cell

#67
20160172696
2016-06-16

Methods for determining anode integrity during fuel cell vehicle operation

#68
20160141772
2016-05-19

Terminal table and terminal table unit

#69
20160133974
2016-05-12

Fuel cell system and control method of fuel cell system

#70
20160133970
2016-05-12

Fuel cell system and control method of fuel cell system

#71
20160103186
2016-04-14

Integrated DC/DC converter, electrochemical energy storage system, and methods for analyzing electrochemical impedance spectroscopy and working state of electrochemical energy storage apparatus

#72
20160036077
2016-02-04

Apparatus and method for managing fuel cell vehicle system

#73
20150380753
2015-12-31

Method for stopping fuel cell system and fuel cell system

#74
20150346065
2015-12-03

Limit based threshold estimation for prognostics and health management

#75
20150340717
2015-11-26

Method and system for controlling air intake of fuel cell vehicle

#76
20150325874
2015-11-12

Redox flow battery system and method of controlling it

#77
20150288041
2015-10-08

Fast starting fuel cell

#78
20150253275
2015-09-10

Electric-field enhanced performance in catalysis and solid-state devices involving gases

#79
20150244013
2015-08-27

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

#80
20150244010
2015-08-27

Method and apparatus for diagnosing state of fuel cell system

#81
20150226806
2015-08-13

METHOD AND SYSTEM FOR EVALUATING REDOX FLOW BATTERY

#82
20150214562
2015-07-30

Controller for Fuel Cell Operation

#83
20150061693
2015-03-05

Method for accessing the quality of membrane electrodes assemblies

#84
20140287331
2014-09-25

Method and device for operating fuel cells

#85
20140242488
2014-08-28

SOLID OXIDE FUEL CELL SYSTEM

#86
20140080023
2014-03-20

Apparatus and method for managing stationary fuel cell system

#87
20140080022
2014-03-20

Apparatus and method for managing fuel cell vehicle system

#88
20140030622
2014-01-30

CONTROL METHOD OF REPLENISHING ANODE FUEL FOR DMFC SYSTEM

#89
20130323615
2013-12-05

FUEL CELL SYSTEM AND MOBILE ARTICLE

#90
20130189598
2013-07-25

Fuel cell system and method for controlling the same

#91
20130171529
2013-07-04

Method for activating fuel cell

#92
20130095405
2013-04-18

Fuel cell system and control method therefor

#93
20130071767
2013-03-21

Fuel cell system

#94
20120321976
2012-12-20

Controlling fuel cell

#95
20120274137
2012-11-01

Fuel cell system and control method therefor

#96
20120270124
2012-10-25

FUEL CELL SYSTEM AND OPERATING METHOD FOR FUEL CELL SYSTEM

#97
20120225365
2012-09-06

Method for controlling fuel cell system

#98
20120058408
2012-03-08

Fuel cell systems with a cover and related methods

#99
20120020128
2012-01-26

Fuel cell system

#100
20110240320
2011-10-06

ELECTRIC POWER TOOL, AND RECORDING MEDIUM

#101
20110212377
2011-09-01

FUEL CELL SYSTEM AND MOBILE ARTICLE

#102
20110123884
2011-05-26

METHOD FOR CONTROLLING A FUEL CELL SYSTEM DURING SHUTDOWN

#103
20110104580
2011-05-05

Fuel cell system

#104
20100323258
2010-12-23

Electric-field enhanced performance in catalysis and solid-state devices involving gases

#105
20100173214
2010-07-08

Controller for fuel cell operation

#106
20100136444
2010-06-03

Electrical bridge for fuel cell plates

#107
20100096927
2010-04-22

Power generation system and operation method thereof

#108
20100003547
2010-01-07

Method for supplying fuel to fuel cell

#109
20090191435
2009-07-30

Covers for electrochemical cells and related methods

#110
20090152953
2009-06-18

Hybrid Power Supply Apparatus with Fuel Cell Output Control

#111
20090130510
2009-05-21

Fuel Cell System and Mobile Article

#112
20090128088
2009-05-21

Fuel cartridge interconnect for portable fuel cells

#113
20090110971
2009-04-30

Method of stopping a solid polymer type fuel cell system

#114
20080318089
2008-12-25

Fast locally resolved electrochemical impedance spectroscopy in polymer electrolyte fuel cells

#115
20080070075
2008-03-20

FUEL CELL SYSTEM

#116
20080063905
2008-03-13

Fuel cell having actuator controlling unit and method of operating the same

#117
20080026271
2008-01-31

Fuel Cell Power Generation System

#118
20080014484
2008-01-17

Fault management in a fuel cell-based system

#119
20070264537
2007-11-15

FUEL CELL DEVICE WITH REMOTE CONTROL INTERFACE

#120
20060105220
2006-05-18

Bipolar fuel cell board

#121
20060083955
2006-04-20

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

#122
20060068237
2006-03-30

Integrated current sensors for a fuel cell stack

#123
20060046107
2006-03-02

System for fuel cell power plant load following and power regulation

#124
20060040160
2006-02-23

Drainage structure in fuel cell electric vehicle

#125
20060037801
2006-02-23

Apparatus for protecting a high-voltage wire in an electric vehicle

#126
20060024551
2006-02-02

Array fuel cell reactors with a switching system

#127
20060019141
2006-01-26

Fuel supply method for direct methanol fuel cell

#128
20050208358
2005-09-22

Solid polymer type fuel cell system for power generation

#129
20050079392
2005-04-14

Fuel cell apparatus and method of controlling the same

#130
20050008903
2005-01-13

Fuel cartridge interconnect for portable fuel cells