ClassID:

213478

H01M8/0441 - 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; Pressure; Ambient pressure; Flow of cathode exhausts

Recent Application in this class:
#1
20260038856
2026-02-05

SYSTEMS AND METHODS FOR MULTI-INPUT CATHODE LOOP CONTROL FOR FUEL CELLS

#2
20250391894
2025-12-25

METHOD AND CONTROL UNIT FOR DETERMINING THE HYDROGEN PROPORTION IN THE EXHAUST GAS STREAM OF A HYDROGEN-POWERED ASSEMBLY

#3
20250349871
2025-11-13

FUEL CELL SYSTEM

#4
20250336992
2025-10-30

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

#5
20250329761
2025-10-23

INTERMITTENT EXHAUST GAS RECIRCULATION DURING OPERATION OF A FUEL CELL SYSTEM

#6
20250253367
2025-08-07

Methods, Devices, Controllers, and Media for Determining Fuel Cell Anode Water Condition

#7
20250125391
2025-04-17

FIRE PROTECTION SYSTEM AND METHOD FOR REDUCING A FIRE HAZARD IN A PROTECTIVE SPACE

#8
20250030023
2025-01-23

FUEL CELL SYSTEM AND METHOD FOR OPERATING A FUEL CELL SYSTEM

#9
20250030020
2025-01-23

DIAGNOSIS SYSTEMS AND METHODS FOR FUEL CELL ASSEMBLIES

#10
20250023067
2025-01-16

OXYGEN-FED FUEL CELL SYSTEM AND METHOD OF USING SAME

#11
20240194909
2024-06-13

SYSTEM FOR MEASURING AMOUNT OF CONSUMED HYDROGEN

#12
20240055633
2024-02-15

METHOD FOR DETERMINING THE LENGTH AND/OR VOLUME OF THE PURGE PATH WITHIN A FUEL CELL SYSTEM

#13
20240021853
2024-01-18

FUEL-CELL SYSTEM WITH EXHAUST-AIR MASS FLOW DETERMINATION

#14
20230378489
2023-11-23

FUEL CELL SYSTEM

#15
20230361321
2023-11-09

FUEL CELL POWER SYSTEM INCLUDING AIR FLOW CONTROL AND METHOD OF OPERATING THEREOF

#16
20230261226
2023-08-17

Fuel cell vehicle with bypass valve control for clearing exhaust

#17
20230197994
2023-06-22

Reforming catalyst pattern for fuel cell operated with enhanced COutilization

#18
20230104149
2023-04-06

SYSTEMS AND METHODS FOR CONTROLLING AND MONITORING A FUEL CELL STACK USING CATHODE EXHAUST HUMIDITY

#19
20230094726
2023-03-30

SYSTEM INCLUDING FUEL CELL ASSEMBLY VOLTAGE MONITOR

#20
20220302476
2022-09-22

Fuel cell system and method of controlling the system

#21
20220255096
2022-08-11

DETERMINATION DEVICE AND METHOD FOR CALCULATING A MOISTURE VALUE IN A FUEL CELL SYSTEM

#22
20210399320
2021-12-23

DETERMINING THE MASS FLOW OF AN EXHAUST GAS CONSTITUENT OF A FUEL CELL

#23
20210226236
2021-07-22

Fuel cell system, and method of estimating humidity in exhaust gas therefrom

#24
20210202968
2021-07-01

System including fuel cell assembly voltage monitor

#25
20210175530
2021-06-10

Method for treating hydrogen-containing and oxygen-containing residual gases of fuel cells, and residual gas treatment system

#26
20200256756
2020-08-13

METHOD AND SYSTEM FOR DETECTING A LEAK IN A FLUID SYSTEM

#27
20200251761
2020-08-06

Fuel cell system

#28
20200176800
2020-06-04

Reforming catalyst pattern for fuel cell operated with enhanced COutilization

#29
20200176789
2020-06-04

Operation of molten carbonate fuel cells with enhanced COutilization

#30
20190386329
2019-12-19

Fuel cell vehicle

#31
20190372140
2019-12-05

Fuel cell system

#32
20190288310
2019-09-19

Method and system for estimating hydrogen concentration of fuel cell

#33
20190198900
2019-06-27

Fuel cell system, mobile object, and exhaust gas discharge control method

#34
20190173111
2019-06-06

Fuel cell system

#35
20190148747
2019-05-16

Fuel cell system

#36
20190131634
2019-05-02

Reversible individual unit for electrolysis or co-electrolysis of water (SOEC) or for fuel cell (SOFC) with operation under pressure and decoupled compressive force

#37
20190109338
2019-04-11

Fuel cell vehicle and control method of fuel cell vehicle

#38
20190044166
2019-02-07

PRESSURE CONTROL SYSTEM, FUEL CELL ASSEMBLY AND USE OF SAID CONTROL SYSTEM

#39
20190036133
2019-01-31

Method for determining a content of a gas component in a gas mixture conveyed in a recirculating manner via a fuel cell

#40
20180323456
2018-11-08

Electrochemical cell and method of operation

#41
20180309144
2018-10-25

Method for controlling air flow in a fuel cell power system

#42
20180301719
2018-10-18

Motor vehicle with a fuel cell

#43
20180287172
2018-10-04

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

#44
20180272888
2018-09-27

Fuel cell system for vehicle

#45
20180175409
2018-06-21

Fuel cell system

#46
20180166712
2018-06-14

Air shut-off valve apparatus for fuel cell system and method of controlling same

#47
20180166691
2018-06-14

Method of activating catalyst for fuel cell

#48
20170207470
2017-07-20

Electrochemical cell and method of operation

#49
20170025689
2017-01-26

Fuel cell system

#50
20160141656
2016-05-19

Fuel cell system and control method therefor

#51
20160006060
2016-01-07

Method of controlling operation of fuel cell system

#52
20160006059
2016-01-07

DRIVING CONTROL METHOD AND SYSTEM OF FUEL CELL SYSTEM

#53
20150303496
2015-10-22

Power generation system and method for cooling fuel cell exhaust in power generation system

#54
20150244012
2015-08-27

Method for supplying air to a fuel cell

#55
20150221961
2015-08-06

Fuel cell system and control method thereof

#56
20150004511
2015-01-01

Method for controlling air flow in a fuel cell power system

#57
20140295302
2014-10-02

Fuel cell monitoring device

#58
20140272644
2014-09-18

FCS overall efficiency by using stored cathode oxygen during down-transients

#59
20140162171
2014-06-12

Anode leak location detection

#60
20140154603
2014-06-05

Fuel cell apparatus and fuel cell system

#61
20140011105
2014-01-09

Reverse flow relief valve for a fuel cell system

#62
20130260270
2013-10-03

Power generation via combined fuel thermolysis and hydrolysis

#63
20130252124
2013-09-26

System and method for activating fuel cells

#64
20130071767
2013-03-21

Fuel cell system

#65
20120328964
2012-12-27

FUEL CELL SYSTEM AND METHOD OF OPERATING THEREOF

#66
20120328911
2012-12-27

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

#67
20120308908
2012-12-06

Fuel cell system

#68
20120251910
2012-10-04

Method for controlling fuel cell system with in-stop-mode power generating process and startup process

#69
20120251900
2012-10-04

FUEL CELL SYSTEM

#70
20120202131
2012-08-09

Fuel cell system and control method for fuel cell system

#71
20120107706
2012-05-03

Fuel cell system and control method at starting in the fuel cell system

#72
20120070757
2012-03-22

Fuel cell vehicle

#73
20120064422
2012-03-15

Fuel cell system and control method thereof

#74
20110274992
2011-11-10

Water content estimation apparatus for fuel cell and fuel cell system

#75
20110262823
2011-10-27

Method for checking the seal of a stack of fuel cells

#76
20110123885
2011-05-26

Fuel cell system and gas control method

#77
20110113857
2011-05-19

Online estimation of cathode inlet and outlet RH from stack average HFR

#78
20110091780
2011-04-21

In-situ fuel cell stack reconditioning

#79
20110086285
2011-04-14

Fuel cell system and method for controlling fuel cell system

#80
20110086279
2011-04-14

FLUID COOLING APPARATUS FOR A FUEL CELL DEVICE AND FUEL CELL SYSTEM

#81
20110076584
2011-03-31

Fuel cell system

#82
20110033763
2011-02-10

Fuel cell system and reverse flow relief valve

#83
20110003215
2011-01-06

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

#84
20100304234
2010-12-02

Method for controlling amount of air supplied to fuel cell

#85
20100266912
2010-10-21

Implementation of an engine controller unit's non-volatile memory for measuring the time of a fuel cell system in a shut-off or standby state

#86
20100261079
2010-10-14

Fuel cell system

#87
20100239929
2010-09-23

FUEL CELL SYSTEM

#88
20100209796
2010-08-19

FUEL CELL SYSTEM AND METHOD FOR CONTROLLING REACTANT GAS SUPPLY AMOUNT

#89
20100209791
2010-08-19

FUEL CELL SYSTEM

#90
20100167098
2010-07-01

FUEL CELL SYSTEM AND TRANSPORTATION EQUIPMENT INCLUDING THE SAME

#91
20100159340
2010-06-24

Fuel cell stack with stoichiometry determination in individual cells

#92
20100151340
2010-06-17

FUEL CELL IN-PLANE STATE ESTIMATING SYSTEM AND FUEL CELL IN-PLANE STATE ESTIMATING METHOD

#93
20100136445
2010-06-03

Fuel cell system with controlled stop process for a shut-down operation

#94
20100136440
2010-06-03

FUEL CELL APPARATUS AND FUEL CELL SYSTEM

#95
20100129689
2010-05-27

System and method for activating fuel cell

#96
20100047663
2010-02-25

Fuel cell system

#97
20090305100
2009-12-10

Fuel cell assembly

#98
20090253021
2009-10-08

Fuel cell system

#99
20090162710
2009-06-25

Fuel cell system

#100
20090155651
2009-06-18

Fuel cell system and generation control device

#101
20090136804
2009-05-28

Fuel cell system and its temperature adjusting method

#102
20090081491
2009-03-26

Method for fast and reliable fuel cell system start-ups

#103
20090011302
2009-01-08

Fuel Cell System

#104
20080318099
2008-12-25

Apparatus for preventing carbon corrosion at cathod in fuel cell

#105
20080261092
2008-10-23

Fuel Cell System

#106
20080220303
2008-09-11

Fuel cell system supply having a measuring device and a control device

#107
20080216773
2008-09-11

Home appliance system using high temperature fuel cell system and method of supplying super heated steam

#108
20080145714
2008-06-19

Fuel Cell System and Related Method

#109
20080118793
2008-05-22

Fluid flow pulsing for increased stability in PEM fuel cell

#110
20080088043
2008-04-17

Fuell cell system and operation method of fuel cells

#111
20070287041
2007-12-13

System level adjustments for increasing stack inlet RH

#112
20070207353
2007-09-06

Cascaded fuel cell stack operation with anode gas recirculation

#113
20070184314
2007-08-09

Fuel cell system

#114
20070166485
2007-07-19

Fuel cell system and control method of fuel cell system

#115
20070065711
2007-03-22

AIR INDEPENDENT POWER PRODUCTION

#116
20070054166
2007-03-08

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

#117
20070048571
2007-03-01

Fuel cell system

#118
20070026280
2007-02-01

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

#119
20060286418
2006-12-21

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

#120
20060280976
2006-12-14

Fuel cell system

#121
20060210849
2006-09-21

Fuel cell system and gas control method

#122
20060207669
2006-09-21

Valve structure and control techniques

#123
20060166058
2006-07-27

Fuel cell system ensuring stability of operation

#124
20060166044
2006-07-27

Fuel cell protection

#125
20060068240
2006-03-30

Fuel cell system

#126
20050260463
2005-11-24

Fluid flow pulsing for increased stability in PEM fuel cell

#127
20050233182
2005-10-20

Method for real-time monitoring and control of cathode stoichiometry in fuel cell system

#128
20050214605
2005-09-29

Fuel cell system and method of discontinuing same

#129
20050158614
2005-07-21

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

#130
20050100768
2005-05-12

Fuel cell system and method for discharging reaction gas from fuel cell

#131
20050075816
2005-04-07

System and method for controlling a fuel cell testing device

#132
20050029107
2005-02-10

Electrochemical cell system output control method and apparatus

#133
20050008905
2005-01-13

Method and apparatus for regulating electrical power output of a fuel cell system