ClassID:

213531

H01M8/04805 - 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; Concentration; Density of fuel cell exhausts

Recent Application in this class:
#1
20260149016
2026-05-28

FUEL CELL SYSTEM

#2
20260135130
2026-05-14

FUEL CELL SYSTEM INCLUDING SILICON SPECIES TRAPPING MATERIAL OR SILICON SPECIES TOLERANT CATALYST AND METHOD OF OPERATING THEREOF

#3
20260112667
2026-04-23

FUEL CELL SYSTEM

#4
20260106191
2026-04-16

FUEL CELL EXHAUST DILUTION CONTROL

#5
20260048685
2026-02-19

METHOD AND SYSTEM FOR CONTROLLING A FUEL CELL ELECTRIC VEHICLE UNDER A POWER CONSERVATION MODE

#6
20250300208
2025-09-25

METHOD FOR REMAINING BELOW A LOWER HYDROGEN EXPLOSION LIMIT IN AN EXHAUST OF A FUEL CELL UNIT

#7
20250226428
2025-07-10

METHOD FOR OPERATING A FUEL CELL SYSTEM

#8
20250219115
2025-07-03

SYSTEMS AND METHODS FOR OPERATING A FUEL CELL SYSTEM

#9
20240347746
2024-10-17

DILUTION CIRCUITRY FOR FUEL CELL VEHICLES WITH COMBINED FUEL CELL EXHAUST SYSTEMS

#10
20240274854
2024-08-15

REDOX FLOW BATTERY

#11
20230006236
2023-01-05

Fuel cell staging for molten carbonate fuel cells

#12
20220359898
2022-11-10

Air supply system for fuel cell and method of controlling same

#13
20220320546
2022-10-06

System and methods for monitoring and controlling emissions from fuel cell engines

#14
20220302476
2022-09-22

Fuel cell system and method of controlling the system

#15
20220278344
2022-09-01

Fuel cell system and method for adjusting a fuel cell system

#16
20210226235
2021-07-22

Fuel cell system and method of controlling fuel cell system

#17
20210159526
2021-05-27

Apparatus for reducing exhaust hydrogen concentration in a fuel cell system and a method thereof

#18
20210151784
2021-05-20

Apparatus and method for controlling concentration of exhaust hydrogen in fuel cell system

#19
20210131348
2021-05-06

Plant and plant operation method

#20
20200303760
2020-09-24

Fuel cell stack

#21
20200176799
2020-06-04

Fuel cell staging for molten carbonate fuel cells

#22
20200176795
2020-06-04

Anode exhaust processing for molten carbonate fuel cells

#23
20200176789
2020-06-04

Operation of molten carbonate fuel cells with enhanced COutilization

#24
20190341636
2019-11-07

Fuel cell system and method for controlling the same

#25
20190288310
2019-09-19

Method and system for estimating hydrogen concentration of fuel cell

#26
20190074531
2019-03-07

Fuel cell device

#27
20180316028
2018-11-01

Fuel cell system and humidifier therefor

#28
20170331128
2017-11-16

Method for switching off a fuel cell stack, and fuel cell system

#29
20170263962
2017-09-14

Device for decreasing hydrogen concentration of fuel cell system

#30
20170141419
2017-05-18

AEROSPACE FUEL CELL CONTROL SYSTEM

#31
20170117564
2017-04-27

On-vehicle fuel cell system

#32
20160351931
2016-12-01

Integrated electrical power and chemical production using fuel cells

#33
20160346720
2016-12-01

Solid particulate capturing device

#34
20150349359
2015-12-03

Fuel cell system

#35
20150263364
2015-09-17

Integrated power generation using molten carbonate fuel cells

#36
20150252269
2015-09-10

Integration of molten carbonate fuel cells in fischer-tropsch synthesis

#37
20150194686
2015-07-09

CATALYTIC HYDROGEN COMBUSTOR

#38
20150140464
2015-05-21

Derivation of control parameters of fuel cell systems for flexible fuel operation

#39
20140343173
2014-11-20

Integration of molten carbonate fuel cells in Fischer-Tropsch synthesis

#40
20140342251
2014-11-20

Integrated power generation and carbon capture using fuel cells

#41
20140302413
2014-10-09

Integrated power generation and chemical production using fuel cells

#42
20140272638
2014-09-18

Integration of molten carbonate fuel cells in methanol synthesis

#43
20140272637
2014-09-18

Integration of molten carbonate fuel cells in Fischer-Tropsch synthesis

#44
20140272634
2014-09-18

Integrated power generation and chemical production using fuel cells

#45
20140272632
2014-09-18

Integration of molten carbonate fuel cells in fischer-tropsch synthesis

#46
20140272629
2014-09-18

Integration of molten carbonate fuel cells in a refinery setting

#47
20140272628
2014-09-18

Integrated electrical power and chemical production using fuel cells

#48
20140272626
2014-09-18

Integrated power generation and chemical production using fuel cells at a reduced electrical efficiency

#49
20140272625
2014-09-18

Integrated operation of molten carbonate fuel cells

#50
20140272624
2014-09-18

Integrated carbon capture and chemical production using fuel cells

#51
20140272621
2014-09-18

Integration of molten carbonate fuel cells for synthesis of nitrogen compounds

#52
20140272619
2014-09-18

Integrated power generation and carbon capture using fuel cells

#53
20140272617
2014-09-18

Integrated power generation and carbon capture using fuel cells

#54
20140260798
2014-09-18

Integration of molten carbonate fuel cells in iron and steel processing

#55
20140260311
2014-09-18

Integration of molten carbonate fuel cells with fermentation processes

#56
20140162155
2014-06-12

Derivation of control parameters of fuel cell systems for flexible fuel operation

#57
20130209903
2013-08-15

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

#58
20130183599
2013-07-18

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

#59
20120251914
2012-10-04

Derivation of control parameters of fuel cell systems for flexible fuel operation

#60
20120148933
2012-06-14

Fuel cell device

#61
20120040264
2012-02-16

HYDROGEN CONCENTRATION SENSOR UTILIZING CELL VOLTAGE RESULTING FROM HYDROGEN PARTIAL PRESSURE DIFFERENCE

#62
20110236778
2011-09-29

Method and apparatus for discharging used operating media of a fuel cell some of which are explosive

#63
20110151344
2011-06-23

METHOD OF CONTROLLING FUEL CELL SYSTEM

#64
20110076580
2011-03-31

Fuel cell system, and method of stopping fuel cell system

#65
20110053028
2011-03-03

Fuel cell system

#66
20110048837
2011-03-03

Hydrogen exhaust system for fuel cell vehicle

#67
20100304260
2010-12-02

Fuel cell system and method of controlling fuel cell system

#68
20100190080
2010-07-29

Fuel cell system and its control method

#69
20100190075
2010-07-29

System and method for observing anode fluid composition during fuel cell start-up

#70
20100129688
2010-05-27

Methods of operating fuel cell stacks and systems related thereto

#71
20100071371
2010-03-25

Power regulating device for an aircraft

#72
20090280360
2009-11-12

Derivation of control parameters of fuel cell systems for flexible fuel operation

#73
20090208793
2009-08-20

Hybrid type power supplying apparatus

#74
20090081502
2009-03-26

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

#75
20090081490
2009-03-26

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

#76
20080311451
2008-12-18

Fuel cell system and fuel cell control method

#77
20080261089
2008-10-23

Fuel cell system and method for controlling fuel cell system

#78
20080226957
2008-09-18

Fuel cell system

#79
20080187795
2008-08-07

Use of an Electrochemical Cell Such as a Fuel Cell

#80
20080152961
2008-06-26

Purging a fuel cell system

#81
20080075991
2008-03-27

Monitoring and control of fuel cell purge to emit non-flammable exhaust streams

#82
20080044693
2008-02-21

Fuel cell system and method for controlling current

#83
20070231638
2007-10-04

Fuel feeder, electric equipment and fuel feed system thereof

#84
20070224472
2007-09-27

Fuel cell system

#85
20060172164
2006-08-03

Fuel cell and fuel cell system

#86
20050242588
2005-11-03

Integrated fuel cell and additive gas supply system for a power generation system including a combustion engine

#87
20050132649
2005-06-23

Hydrogen generator, method of shutting down operation of hydrogen generator, and fuel cell system

#88
20050042485
2005-02-24

Generation method with fuel cell generation system and fuel cell generation system