ClassID:

213492

H01M8/04514 - 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; Humidity; Ambient humidity; Water content of anode exhausts

Recent Application in this class:
#1
20250309307
2025-10-02

REGENERATIVE FUEL CELL SYSTEM AND METHOD OF OPERATING THE SAME

#2
20240039020
2024-02-01

FUEL CELL SYSTEM AND METHOD OF CONTROLLING SAME

#3
20230307678
2023-09-28

ACTIVATION METHOD FOR FUEL CELL AND DEVICE THEREFOR

#4
20230170502
2023-06-01

PURGE SYSTEMS AND METHODS IN A FUEL CELL SYSTEM

#5
20230170500
2023-06-01

Fuel cell apparatus

#6
20230084837
2023-03-16

SYSTEMS AND METHODS TO MEASURE OR CONTROL FUEL CELL STACK EXCESS HYDROGEN FLOW USING HUMIDITY

#7
20220293976
2022-09-15

Water discharge optimization for fuel cell vehicles

#8
20220102743
2022-03-31

Electrochemical cell system

#9
20210399320
2021-12-23

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

#10
20210273246
2021-09-02

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

#11
20210091390
2021-03-25

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

#12
20200321637
2020-10-08

Fuel cell system

#13
20200290466
2020-09-17

Method for controlling fuel cell vehicle

#14
20200203738
2020-06-25

System and method for removing water and hydrogen from anode exhaust

#15
20200176796
2020-06-04

Methods and systems for controlling water imbalance in an electrochemical cell

#16
20200161671
2020-05-21

FUEL CELL SYSTEM CONTAINING HUMIDITY SENSOR AND METHOD OF OPERATING THEREOF

#17
20200106115
2020-04-02

Method for determining humidity condition in fuel cell system

#18
20190356004
2019-11-21

Fuel cell system

#19
20190245227
2019-08-08

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

#20
20190190043
2019-06-20

Fuel cell failure diagnostic apparatus and method thereof

#21
20190016233
2019-01-17

Method for controlling fuel cell vehicle

#22
20180294491
2018-10-11

Fuel cell vehicle

#23
20170179503
2017-06-22

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

#24
20160141685
2016-05-19

Fuel cell system and control method of fuel cell system

#25
20160141660
2016-05-19

Fuel cell system and control method therefor

#26
20160141650
2016-05-19

Fuel cell system

#27
20160099478
2016-04-07

Methods relating to monitoring fuel cells

#28
20160036075
2016-02-04

Device for adjusting hollow fiber membrane density for humidification device of fuel cell

#29
20160006060
2016-01-07

Method of controlling operation of fuel cell system

#30
20150099202
2015-04-09

Power generation system

#31
20140363480
2014-12-11

Device for discharging liquid

#32
20140236535
2014-08-21

Apparatus and method for softsensing fuel cell system

#33
20130295477
2013-11-07

Fuel cell system including a fuel cell and a controller for controlling water vapor amount or average flow rate of a fuel gas

#34
20130295475
2013-11-07

System and method for controlling fuel cell module

#35
20130089797
2013-04-11

Anode purge and drain valve strategy for fuel cell system

#36
20130022886
2013-01-24

System and method for detecting a fuel cell anode gas composition

#37
20120107705
2012-05-03

Anode gas composition utilizing H2 injection pressure wave propagation rates

#38
20120040264
2012-02-16

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

#39
20110274993
2011-11-10

Fuel cell system

#40
20110045365
2011-02-24

Method for removing residual water from fuel cell

#41
20100233554
2010-09-16

FUEL CELL SYSTEM AND OPERATING METHOD THEREOF

#42
20100178578
2010-07-15

System and method for detecting a fuel cell anode gas composition

#43
20100068569
2010-03-18

Fuel cell system and method for controlling the fuel cell system

#44
20100055508
2010-03-04

FUEL CELL SYSTEMS WITH WATER RECOVERY FROM FUEL CELL EFFLUENT

#45
20090263695
2009-10-22

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

#46
20090155651
2009-06-18

Fuel cell system and generation control device

#47
20090155647
2009-06-18

SYSTEM AND PROCESS FOR GENERATING ELECTRICAL POWER

#48
20090155644
2009-06-18

SYSTEM AND PROCESS FOR GENERATING ELECTRICAL POWER

#49
20090155640
2009-06-18

SYSTEM AND PROCESS FOR GENERATING ELECTRICAL POWER

#50
20080038605
2008-02-14

Electronic equipment having fuel cell with gaseous water discharging section

#51
20080014472
2008-01-17

Fuel cell anode stoichiometry control

#52
20070072016
2007-03-29

METHODS AND APPARATUS FOR IMPROVING THE COLD STARTING CAPABILITY OF A FUEL CELL

#53
20070048581
2007-03-01

Fuel cell system

#54
20050147863
2005-07-07

Fuel supply system for fuel cell system designed to ensure stability in regulating flow rate of recirculated off-gas

#55
20050072212
2005-04-07

Control device of gas sensor

#56
16181965
2020-03-17

Methods and systems for controlling water imbalance in an electrochemical cell