ClassID:

213536

H01M8/04843 - 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; Humidity; Water content of fuel cell exhausts

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

FUEL CELL SYSTEM

#2
20260131700
2026-05-14

COMPUTER SYSTEM AND A METHOD FOR CONTROLLING A FUEL CELL SYSTEM

#3
20260074247
2026-03-12

FUEL CELL ADAPTIVE PURGE DRAIN VALVE CONTROL

#4
20260066314
2026-03-05

FUEL CELL SYSTEM AND MONO-GENERATION APPARATUS

#5
20260058177
2026-02-26

SYSTEMS AND METHODS FOR FUEL CELL CATHODE EXHAUST HUMIDITY CONTROL

#6
20250385284
2025-12-18

FUEL CELL DURABILITY AND VALIDATION MODULE TEST STAND

#7
20250349869
2025-11-13

METHOD FOR OPERATING A FUEL CELL SYSTEM, AND A CONTROL DEVICE

#8
20250329763
2025-10-23

Fuel Cell Exhaust Separation System and Control Method

#9
20250266480
2025-08-21

SOLID OXIDE FUEL CELL SYSTEM CHROMIUM POISONING PREVENTION MATERIALS

#10
20250266476
2025-08-21

CONDENSER-BASED ANODE HYDROGEN PRECONDITIONING

#11
20250132362
2025-04-24

METHOD FOR DRYING A FUEL CELL, AND FUEL CELL SYSTEM

#12
20250112255
2025-04-03

METHOD FOR OPERATING A FUEL CELL SYSTEM, AND A CONTROL DEVICE

#13
20250105319
2025-03-27

METHOD FOR OPERATING A FUEL CELL SYSTEM, AND CONTROL DEVICE

#14
20250096286
2025-03-20

MEMBRANE STACKING UNIT

#15
20250038234
2025-01-30

SYSTEM FOR A FUEL CELL VEHICLE, AN EXHAUST FLUID PROCESSING DEVICE, THE FUEL CELL VEHICLE, AND METHODS FOR HANDLING A FUEL CELL EXHAUST FLUID OF A FUEL CELL SYSTEM OF THE FUEL CELL VEHICLE

#16
20250023067
2025-01-16

OXYGEN-FED FUEL CELL SYSTEM AND METHOD OF USING SAME

#17
20240387843
2024-11-21

ION ANALYSIS DEVICE AND FUEL CELL EVALUATION SYSTEM

#18
20240304843
2024-09-12

Fuel Cell System

#19
20240258536
2024-08-01

FUEL CELL SYSTEM

#20
20230420704
2023-12-28

Thermal Management System for Fuel Cell Vehicles

#21
20230378501
2023-11-23

Fuel-cell exhaust arrangement

#22
20230327151
2023-10-12

HUMIDIFIER CONTROL APPARATUS AND METHOD AND FUEL CELL SYSTEM USING THE SAME

#23
20230317985
2023-10-05

METHOD FOR OPERATING A SOLID OXIDE FUEL CELL DEVICE, THE SOLID OXIDE FUEL CELL DEVICE AND A MOTOR VEHICLE OUTFITTED WITH SUCH

#24
20230290968
2023-09-14

FUEL CELL SYSTEM AND METHOD FOR REDUCING VIBRATION AND NOISE OF FUEL CELL SYSTEM

#25
20230261227
2023-08-17

System and method of enhanced purge strategy for fuel cell in vehicle

#26
20230261217
2023-08-17

ANODE RECOVERY SYSTEM OF FUEL CELL

#27
20230261216
2023-08-17

FUEL CELL SYSTEM

#28
20230256369
2023-08-17

LIQUID SEPARATOR

#29
20230178775
2023-06-08

FUEL CELL VEHICLE

#30
20230170502
2023-06-01

PURGE SYSTEMS AND METHODS IN A FUEL CELL SYSTEM

#31
20230170500
2023-06-01

Fuel cell apparatus

#32
20230104149
2023-04-06

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

#33
20230011881
2023-01-12

COOLING APPARATUS OF FUEL CELL VEHICLE

#34
20230006236
2023-01-05

Fuel cell staging for molten carbonate fuel cells

#35
20220332219
2022-10-20

EXHAUST WATER VAPOR MANAGEMENT FOR HYDROGEN FUEL CELL-POWERED AIRCRAFT

#36
20220320537
2022-10-06

Fuel cell system and method for removing water from the fuel cell system

#37
20220302478
2022-09-22

Fuel cell system

#38
20220302472
2022-09-22

Fuel Cell System

#39
20220238898
2022-07-28

High efficiency humidity management system for fuel cells and higher-temperature electrochemical systems

#40
20220149399
2022-05-12

System and method for purging condensate water and hydrogen of fuel cell stack

#41
20220102743
2022-03-31

Electrochemical cell system

#42
20220059856
2022-02-24

Fuel cell system containing water injector and method of operating the same

#43
20220045344
2022-02-10

SOLID OXIDE FUEL CELL WITH WATER RECYCLE

#44
20210376346
2021-12-02

Fuel cell system

#45
20210273246
2021-09-02

Method for humidifying a reactant, and fuel cell system for carrying out the method

#46
20210273245
2021-09-02

Humidifier and motor vehicle with a fuel cell device having a humidifier

#47
20210226237
2021-07-22

Fuel cell system

#48
20210202965
2021-07-01

FUEL CELL SYSTEM AND METHOD FOR PURGING AND REMOVING WATER DURING START AND STOP PROCESS THEREOF

#49
20210175530
2021-06-10

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

#50
20210135260
2021-05-06

Fuel cell, control method for fuel cell, and computer readable recording medium

#51
20210091390
2021-03-25

Media management plate comprising water trap and water reservoir, and fuel cell system

#52
20210005910
2021-01-07

Fuel cell system and method for operating fuel cell system

#53
20200388863
2020-12-10

FUEL CELL SYSTEM

#54
20200317061
2020-10-08

Fuel cell vehicle

#55
20200290466
2020-09-17

Method for controlling fuel cell vehicle

#56
20200266464
2020-08-20

Humidifier for fuel cell

#57
20200243885
2020-07-30

Fuel cell system containing water injector and method of operating the same

#58
20200203738
2020-06-25

System and method for removing water and hydrogen from anode exhaust

#59
20200176799
2020-06-04

Fuel cell staging for molten carbonate fuel cells

#60
20200176796
2020-06-04

Methods and systems for controlling water imbalance in an electrochemical cell

#61
20200171429
2020-06-04

SYSTEM FOR INERTING AT LEAST ONE VOLUME IN AN AIRCRAFT VIA AT LEAST ONE FUEL CELL

#62
20200144644
2020-05-07

FUEL CELL SYSTEM

#63
20200144640
2020-05-07

FUEL CELL SYSTEM

#64
20200127305
2020-04-23

Energy conversion system

#65
20200106115
2020-04-02

Method for determining humidity condition in fuel cell system

#66
20200091537
2020-03-19

Fuel cell stack and method for operating a fuel cell stack

#67
20200075976
2020-03-05

Humidity transfer assemblies for fuel cells and higher-temperature electrochemical systems

#68
20200067109
2020-02-27

Systems and methods for fuel-cell stack flow control with simultaneous load following

#69
20200052312
2020-02-13

Humidification device for fuel cell

#70
20200036017
2020-01-30

Fuel cell system and method for controlling the fuel cell system

#71
20200036016
2020-01-30

Humidifier

#72
20190379075
2019-12-12

Method of operating a fuel cell stack having a temporarily disabled drain valve

#73
20190372142
2019-12-05

Controller for estimating relative humidity and condensed water, and method for controlling condensed water drain using the same

#74
20190372141
2019-12-05

Controller for estimating relative humidity and condensed water, and method for controlling condensed water drain using the same

#75
20190363384
2019-11-28

Controller for estimating relative humidity and condensed water, and method for controlling condensed water drain using the same

#76
20190305342
2019-10-03

Preventing the formation of black ice as a result of exhaust water from motor vehicles

#77
20190288313
2019-09-19

Fuel cell system and control method of fuel cell system

#78
20190260045
2019-08-22

Fuel cell system and method of controlling the same

#79
20190245227
2019-08-08

Method of diagnosing level sensor failure in fuel cell water trap and control unit using the same

#80
20190190043
2019-06-20

Fuel cell failure diagnostic apparatus and method thereof

#81
20190140297
2019-05-09

CARBON DIOXIDE SEPARATOR, FUEL CELL SYSTEM INCLUDING SAME, AND METHOD OF OPERATING THE FUEL CELL SYSTEM

#82
20190137116
2019-05-09

Fuel cell heater system

#83
20190099628
2019-04-04

Supply system and method for providing electric energy, oxygen depleted air and water as well and aircraft having such a supply system

#84
20190016233
2019-01-17

Method for controlling fuel cell vehicle

#85
20180342749
2018-11-29

METHOD OF CONTROLLING FUEL CELL SYSTEM

#86
20180331379
2018-11-15

Fuel cell, control method for fuel cell, and computer readable recording medium

#87
20180241060
2018-08-23

Method and device for parallel condensation and evaporation for fuel cell system

#88
20180145351
2018-05-24

Fuel cell system and shutdown method thereof

#89
20180034071
2018-02-01

Fuel cell having oxygen selective membrane

#90
20180006318
2018-01-04

Fuel cell system

#91
20170365865
2017-12-21

Cooling system and method for use with a fuel cell

#92
20170324101
2017-11-09

PROACTIVE ANODE FLOODING REMEDIATION

#93
20170191139
2017-07-06

Integration of molten carbonate fuel cells in iron and steel processing

#94
20170187057
2017-06-29

HYDROGEN GENERATOR AND FUEL CELL SYSTEM AND METHOD

#95
20160351931
2016-12-01

Integrated electrical power and chemical production using fuel cells

#96
20160344047
2016-11-24

Method for purging a fuel cell and device for carrying out said method

#97
20160315336
2016-10-27

Turbine for decompression of exhaust gas and a fuel cell system including same

#98
20160301091
2016-10-13

Controller for estimating relative humidity and condensed water, and method for controlling condensed water drain using the same

#99
20160248111
2016-08-25

Carbon dioxide separator, fuel cell system including same, and method of operating the fuel cell system

#100
20160141687
2016-05-19

Fuel cell system, fuel cell-mounted vehicle and method of controlling fuel system

#101
20160141650
2016-05-19

Fuel cell system

#102
20160064756
2016-03-03

Fuel cell system and method of controlling the fuel cell system

#103
20160030781
2016-02-04

Supply system and method for providing electric energy, oxygen depleted air and water as well and aircraft having such a supply system

#104
20150056532
2015-02-26

Fuel cell apparatus and method of operation

#105
20140349214
2014-11-27

Device For Cooling And Dehumidifying Gases, Method For Cooling And Dehumidifying Gases, And Vehicle With A Fuel Cell System And A Device For Cooling And Dehumidifying Fuel Cell Exhaust Air

#106
20140162152
2014-06-12

Control system for a sealed coolant flow field fuel cell power plant having a water reservoir

#107
20140093803
2014-04-03

Fuel cell system

#108
20140004434
2014-01-02

FUEL CELL SYSTEM AND METHOD FOR OPERATING A FUEL CELL SYSTEM

#109
20130323540
2013-12-05

Fuel cell system with water production control, and vehicle equipped with the same

#110
20130236804
2013-09-12

Cooling system and method for use with a fuel cell

#111
20130089797
2013-04-11

Anode purge and drain valve strategy for fuel cell system

#112
20120301804
2012-11-29

Fuel cell system and control method thereof

#113
20120148927
2012-06-14

Controller for estimating relative humidity and condensed water, and method for controlling condensed water drain using the same

#114
20120021321
2012-01-26

Fuel cell system

#115
20110262822
2011-10-27

Controls giving −25° C. freeze start capability to a fuel cell system

#116
20110236778
2011-09-29

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

#117
20110207012
2011-08-25

Method for detecting orifice flow phase transition in a pressure-controlled anode

#118
20110200895
2011-08-18

Method to automatically enable/disable stack reconditioning procedure based on fuel cell stack parameter estimation

#119
20110113857
2011-05-19

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

#120
20110097633
2011-04-28

Fuel Cell System and Motor Vehicle with Such a Fuel Cell System

#121
20110091780
2011-04-21

In-situ fuel cell stack reconditioning

#122
20110020722
2011-01-27

FUEL CELL AND BIPOLAR PLATE HAVING MANIFOLD SUMP

#123
20100255873
2010-10-07

Fuel cell with proton conducting membrane and with improved water and fuel management

#124
20100212979
2010-08-26

Fuel cell-equipped vehicle and control method for fuel cell-equipped vehicle

#125
20090263695
2009-10-22

APPARATUS FOR GENERATING HYDROGEN AND FUEL CELL POWER GENERATION SYSTEM HAVING THE SAME

#126
20090142633
2009-06-04

Fuel cell system and mobile article

#127
20090068522
2009-03-12

Monopolar type membrane electrode assembly having sensing element

#128
20080241629
2008-10-02

Fuel cell having fuel tank directly attached to anode allowing pump-free fuel delivery

#129
20080038605
2008-02-14

Electronic equipment having fuel cell with gaseous water discharging section

#130
20070287041
2007-12-13

System level adjustments for increasing stack inlet RH

#131
20070281193
2007-12-06

Multiple pressure regime control to minimize RH excursions during transients

#132
20070265802
2007-11-15

Fuel cell operation to minimize RH cycles to improve durability

#133
20070196706
2007-08-23

Fuel cell system

#134
20070141410
2007-06-21

Direct oxidation fuel cell system

#135
20070122670
2007-05-31

Fuel cell unit

#136
20070048581
2007-03-01

Fuel cell system

#137
18338205
2024-04-02

Liquid water from fuel cell exhaust for cabin humidity control

#138
16181965
2020-03-17

Methods and systems for controlling water imbalance in an electrochemical cell