ClassID:

213537

H01M8/0485 - 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 the electrolyte

Recent Application in this class:
#1
20250132362
2025-04-24

METHOD FOR DRYING A FUEL CELL, AND FUEL CELL SYSTEM

#2
20250038235
2025-01-30

FUEL CELL SYSTEM

#3
20240332575
2024-10-03

Method and System for Dynamically Modifying Fuel Cell Stack Current to Manage Fuel Cell Membrane Hydration

#4
20220384824
2022-12-01

Fuel cell system

#5
20220255096
2022-08-11

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

#6
20220029180
2022-01-27

Humidifier for fuel cell

#7
20210057767
2021-02-25

Membrane humidifier for fuel cell

#8
20200321641
2020-10-08

Degradation-conscious control for PEM fuel cells

#9
20200185746
2020-06-11

Catalyst deterioration recovery device and catalyst deterioration recovery method

#10
20200161678
2020-05-21

HUMIDIFYING MODULE FOR HUMIDIFYING A FLUID

#11
20190379075
2019-12-12

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

#12
20190372142
2019-12-05

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

#13
20190372141
2019-12-05

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

#14
20190363384
2019-11-28

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

#15
20190348694
2019-11-14

Fuel cell system and method for controlling same

#16
20190237779
2019-08-01

Fuel cell system and fuel cell vehicle

#17
20190190040
2019-06-20

System and method for MEA conditioning in a fuel cell

#18
20190173107
2019-06-06

Fuel cell system and control method for fuel cell system

#19
20190165389
2019-05-30

WATER MANAGEMENT SYSTEM IN ELECTROCHEMICAL CELLS WITH VAPOR RETURN COMPRISING AIR ELECTRODES

#20
20180358636
2018-12-13

Control method for fuel cell system and fuel cell system

#21
20180269500
2018-09-20

Apparatus and method for controlling humidification amount of membrane humidifier for fuel cell

#22
20180248208
2018-08-30

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

#23
20180166719
2018-06-14

System and method for controlling fuel cell vehicle

#24
20180108925
2018-04-19

Apparatus and method for diagnosing state of fuel cell stack

#25
20180102558
2018-04-12

System and device for water evaporation of fuel cell and control method thereof

#26
20180053952
2018-02-22

State detection device and method for fuel cell

#27
20180048006
2018-02-15

Fuel cell internal state detection system and state detection method

#28
20170346106
2017-11-30

Device intended to generate electricity from a planar fuel cell cooled by air flow

#29
20170214069
2017-07-27

Fuel cell system and control method for fuel cell system

#30
20170187053
2017-06-29

Fuel cell system and control method for fuel cell system

#31
20170162885
2017-06-08

Method for adjusting output of fuel cell system

#32
20170077530
2017-03-16

Apparatus and method for controlling humidification amount of membrane humidifier for fuel cell

#33
20170062847
2017-03-02

FUEL CELL WITH OXYGEN TRANSPORT MEMBRANE

#34
20170018791
2017-01-19

Fuel cell system

#35
20170012305
2017-01-12

Fuel cell system

#36
20160301091
2016-10-13

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

#37
20160293978
2016-10-06

Water management system in electrochemical cells with vapor return comprising air electrodes

#38
20160276682
2016-09-22

Fuel cell humidification device and fuel cell motorcycle

#39
20160164132
2016-06-09

Method for activating fuel cell stack without using electric load

#40
20160156046
2016-06-02

Fuel cell system and control method of fuel cell system

#41
20160149242
2016-05-26

Fuel cell system and method of controlling fuel cell system

#42
20160141688
2016-05-19

Fuel cell system and dryness degree acquisition method

#43
20160141671
2016-05-19

Water drainage device for fuel cell, fuel cell system, moving body and control method of fuel cell system

#44
20150372327
2015-12-24

Sealing apparatus for a fuel cell stack

#45
20150357659
2015-12-10

Fuel cell system and fuel cell powered vehicle

#46
20150244013
2015-08-27

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

#47
20150171444
2015-06-18

Fuel cell system

#48
20150162629
2015-06-11

Fuel cell system

#49
20150155573
2015-06-04

FUEL CELL COOLING APPARATUS AND FUEL CELL COOLING METHOD USING THE SAME

#50
20150125766
2015-05-07

System and method for controlling fuel cell module

#51
20150118586
2015-04-30

Method of operating a fuel cell

#52
20150099200
2015-04-09

Freeze preparation for a fuel cell system

#53
20150044582
2015-02-12

FUEL CELL SYSTEM

#54
20150004505
2015-01-01

Liquid electrolyte fuel cell system

#55
20140349201
2014-11-27

Fuel cell assembly and method of control

#56
20140178778
2014-06-26

Fuel cell system

#57
20140162152
2014-06-12

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

#58
20130330646
2013-12-12

Fuel cell system

#59
20130295475
2013-11-07

System and method for controlling fuel cell module

#60
20130065150
2013-03-14

Fuel cell system

#61
20130052555
2013-02-28

Alkaline fuel cell and alkaline fuel cell system

#62
20130004874
2013-01-03

FUEL CELL SYSTEM

#63
20120148927
2012-06-14

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

#64
20120015263
2012-01-19

Method and apparatus for determining humidity states of individual cells in a fuel cell, method and apparatus for controlling humidity states of individual cells in a fuel cell, and a fuel cell system

#65
20110311889
2011-12-22

Fuel cell system

#66
20110294026
2011-12-01

Method and apparatus for controlling the operation of a fuel cell

#67
20110274992
2011-11-10

Water content estimation apparatus for fuel cell and fuel cell system

#68
20110262822
2011-10-27

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

#69
20110250519
2011-10-13

Fuel cell system

#70
20110223507
2011-09-15

Systems and methods for fuel cell thermal management

#71
20110200896
2011-08-18

Fuel cell system and operating method of a fuel cell

#72
20110159393
2011-06-30

Vehicle fuel cell cooling system

#73
20110104580
2011-05-05

Fuel cell system

#74
20110045374
2011-02-24

FUEL CELL SYSTEM

#75
20110014547
2011-01-20

Method for storing a fuel cell at freezing temperature

#76
20100266917
2010-10-21

Fuel cell systems with maintenance hydration by displacement of primary power

#77
20100261082
2010-10-14

Fuel cell system

#78
20100233560
2010-09-16

FUEL CELL SYSTEM

#79
20100209791
2010-08-19

FUEL CELL SYSTEM

#80
20100112398
2010-05-06

Fuel cell system

#81
20100081022
2010-04-01

Fuel cell system

#82
20100015482
2010-01-21

Fuel cell system

#83
20090286109
2009-11-19

Fuel cell system and driving method of fuel cell system

#84
20090252995
2009-10-08

FUEL CELL WITH OXYGEN TRANSPORT MEMBRANE

#85
20090191437
2009-07-30

Fuel cell system

#86
20090155634
2009-06-18

Method to maximize fuel cell voltage during start-up

#87
20090081489
2009-03-26

On-line system identification and control of fuel cell humidification via HFR measurements

#88
20090023023
2009-01-22

Fuel Cell Control System

#89
20090017343
2009-01-15

FUEL CELL SYSTEM HAVING PHOSPHORIC ACID POLYMER ELECTROLYTE MEMBRANE AND METHOD OF STARTING THE SAME

#90
20090011302
2009-01-08

Fuel Cell System

#91
20090004514
2009-01-01

Method of selecting non-humidification operation condition of proton exchange membrane fuel cell

#92
20080299423
2008-12-04

FUEL CELL SYSTEMS WITH MAINTENANCE HYDRATION

#93
20080299420
2008-12-04

Fuel cell systems with maintenance hydration by displacement of primary power

#94
20080166609
2008-07-10

Fuel cell system

#95
20080050626
2008-02-28

Control strategy to prevent humidity cycling in a fuel cell

#96
20080044693
2008-02-21

Fuel cell system and method for controlling current

#97
20080038594
2008-02-14

Method of operating a fuel cell stack by monitoring membrane hydration

#98
20080032165
2008-02-07

Fuel cell device, control device, control method, and control program

#99
20080020246
2008-01-24

Fuel cell system

#100
20070184317
2007-08-09

Fuel cell system and fuel cell control method

#101
20070122662
2007-05-31

Method of operating a fuel cell stack

#102
20070048568
2007-03-01

Fuel cell unit, control method for fuel cell unit, and information processing apparatus

#103
20070042243
2007-02-22

Apparatus and method for controlling a fuel cell using the rate of voltage recovery

#104
20060263653
2006-11-23

Management via dynamic water holdup estimator in a fuel cell

#105
20060222924
2006-10-05

Prevention of flooding of fuel cell stack

#106
20060134472
2006-06-22

Summer and winter mode operation of fuel cell stacks

#107
20050221146
2005-10-06

Separator and fuel cell using that separator

#108
20050164049
2005-07-28

Storing water in substrates for frozen, boot-strap start of fuel cells

#109
20050153181
2005-07-14

Fuel cell system with a control unit

#110
20050118466
2005-06-02

Method for initial activation of polymer electrolyte fuel cell