ClassID:

213486

H01M8/0447 - 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; Concentration; Density of cathode exhausts

Recent Application in this class:
#1
20250391894
2025-12-25

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

#2
20250316732
2025-10-09

FUEL CELL SYSTEM WITH RADIATOR AND CONTROL METHOD THEREOF

#3
20250300208
2025-09-25

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

#4
20250105322
2025-03-27

SYSTEMS AND METHODS OF FUEL CELL HUMIDIFIER LEAK DETECTION

#5
20250030020
2025-01-23

DIAGNOSIS SYSTEMS AND METHODS FOR FUEL CELL ASSEMBLIES

#6
20240356051
2024-10-24

MEDIA COMBINING DEVICE AND METHOD FOR DETECTING THE FUEL CONTENT IN MULTIPLE FUEL-CELL SYSTEMS

#7
20240274854
2024-08-15

REDOX FLOW BATTERY

#8
20240194909
2024-06-13

SYSTEM FOR MEASURING AMOUNT OF CONSUMED HYDROGEN

#9
20240186548
2024-06-06

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

#10
20240162462
2024-05-16

METHOD FOR CALIBRATING A FUEL SENSOR

#11
20230343975
2023-10-26

DEVICE FOR DETERMINING THE HYDROGEN CONCENTRATION OF AN EXHAUST GAS IN AN EXHAUST GAS LINE OF A FUEL CELL SYSTEM, AND FUEL CELL SYSTEM

#12
20230261217
2023-08-17

ANODE RECOVERY SYSTEM OF FUEL CELL

#13
20230197994
2023-06-22

Reforming catalyst pattern for fuel cell operated with enhanced COutilization

#14
20230104149
2023-04-06

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

#15
20230094726
2023-03-30

SYSTEM INCLUDING FUEL CELL ASSEMBLY VOLTAGE MONITOR

#16
20220359898
2022-11-10

Air supply system for fuel cell and method of controlling same

#17
20220302476
2022-09-22

Fuel cell system and method of controlling the system

#18
20220140367
2022-05-05

Method for shutting down a fuel cell system

#19
20210399320
2021-12-23

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

#20
20210202968
2021-07-01

System including fuel cell assembly voltage monitor

#21
20210175530
2021-06-10

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

#22
20210159526
2021-05-27

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

#23
20200176800
2020-06-04

Reforming catalyst pattern for fuel cell operated with enhanced COutilization

#24
20190341636
2019-11-07

Fuel cell system and method for controlling the same

#25
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

#26
20170117600
2017-04-27

Electrochemical battery maintaining oxygen concentration by air recirculation

#27
20160006060
2016-01-07

Method of controlling operation of fuel cell system

#28
20150357661
2015-12-10

Method for detecting leakage of a reducing fluid throughout an electrolyte membrane of an electrochemical cell

#29
20150288013
2015-10-08

Online monitoring of fuel cell reactions by desorption electrospray mass spectrometry

#30
20150140464
2015-05-21

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

#31
20140212779
2014-07-31

Method for controlling fuel cell system

#32
20140162155
2014-06-12

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

#33
20140120442
2014-05-01

Apparatus and method of in-situ measurement of membrane fluid crossover

#34
20140120433
2014-05-01

Apparatus and method of in-situ measurement of membrane fluid crossover

#35
20130157153
2013-06-20

Apparatus and method of in situ catalyst degradation detection during fuel cell operation

#36
20130040211
2013-02-14

Method to correct for permeation uncertainties using a concentration sensor

#37
20130034465
2013-02-07

Hydrogen Sensing Device

#38
20120251914
2012-10-04

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

#39
20120225360
2012-09-06

METHOD FOR OPERATING A FUEL CELL

#40
20120189937
2012-07-26

HIGH-TEMPERATURE POLYMER ELECTROLYTE FUEL CELL SYSTEM (HT-PEFC) AND A METHOD FOR OPERATING THE SAME

#41
20120028158
2012-02-02

Solid oxide fuel cell

#42
20120009492
2012-01-12

FUEL CELL SYSTEM, CONTROL METHOD FOR THE FUEL CELL SYSTEM, AND STATE DETECTION METHOD FOR FUEL CELL

#43
20110256461
2011-10-20

FUEL CELL SYSTEM, ESTIMATION DEVICE OF AMOUNT OF ANODE GAS TO BE GENERATED AND ESTIMATION METHOD OF AMOUNT OF ANODE GAS TO BE GENERATED

#44
20110076580
2011-03-31

Fuel cell system, and method of stopping fuel cell system

#45
20110045368
2011-02-24

Apparatus for recirculation of a cathode gas in a fuel cell arrangement, method for shutting down such a fuel cell arrangement

#46
20100190075
2010-07-29

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

#47
20090321271
2009-12-31

Method of Pumping Combustible Gas

#48
20090305100
2009-12-10

Fuel cell assembly

#49
20090280360
2009-11-12

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

#50
20090269628
2009-10-29

Fuel cell system, estimation device of amount of anode gas to be generated and estimation method of amount of anode gas to be generated

#51
20090197141
2009-08-06

Exhaust fuel diluting mechanism and fuel cell system with the exhaust fuel diluting mechanism

#52
20090117417
2009-05-07

Method for model based exhaust mixing control in a fuel cell application

#53
20090061261
2009-03-05

GAS PHYSICAL QUANTITY DETECTING DEVICE, FUEL CELL SYSTEM AND VEHICLE

#54
20080311451
2008-12-18

Fuel cell system and fuel cell control method

#55
20080299427
2008-12-04

FUEL CELL DEVICE AND ELECTRONIC APPARATUS SYSTEM INCLUDING FUEL CELL DEVICE

#56
20080261089
2008-10-23

Fuel cell system and method for controlling fuel cell system

#57
20080152972
2008-06-26

Fuel cell start-up control system

#58
20080075991
2008-03-27

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

#59
20080014478
2008-01-17

Fuel cell humidifier diagnostic

#60
20070184314
2007-08-09

Fuel cell system

#61
20070166582
2007-07-19

Fuel cell system

#62
20070111058
2007-05-17

Fuel cell system and control method thereof for detecting a chemical short

#63
20070077469
2007-04-05

Direct oxidation fuel cell systems with regulated fuel cell stack and liquid-gas separator temperatures

#64
20070026275
2007-02-01

Gas sensor, gas sensor system, and controlling method thereof

#65
20060169024
2006-08-03

Gas sensor and fuel cell system and automobile employing the same

#66
20050233182
2005-10-20

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

#67
20050164048
2005-07-28

Current control for parallel fuel cell stacks

#68
20050136301
2005-06-23

Monitoring fuel cells using RFID devices

#69
20050130001
2005-06-16

Fuel cell life predicting device and fuel cell system