ClassID:

213511

H01M8/04656 - 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; Electric variables; Other electric variables, e.g. resistance or impedance of auxiliary devices, e.g. batteries, capacitors

Recent Application in this class:
#1
20260121090
2026-04-30

VEHICLE FUEL CELL WAKEUP TO CONDITION OPERATIONAL STRATEGY

#2
20250210680
2025-06-26

TERRESTRIAL MICROBIAL FUEL CELL

#3
20250070203
2025-02-27

FUEL CELL SYSTEM, VEHICLE, AND METHOD OF MEASURING IMPEDANCE

#4
20240194914
2024-06-13

METHOD FOR USING FUEL CELL SYSTEM AIR THROTTLE TO CONTROL HYBRID POWER SYSTEM

#5
20240170969
2024-05-23

Systems and methods for facilitating medium voltage microgrid operation to manage critical loads

#6
20230302922
2023-09-28

SUSTAINING STATE OF CHARGE AND STATE OF HEALTH IN FUEL CELL MODULES AND BATTERIES OF A FUEL CELL HYBRID SYSTEM

#7
20230207846
2023-06-29

System and method for indirectly monitoring an isolation resistance of one or more fuel cells

#8
20220190365
2022-06-16

System and method for controlling cold start of fuel cell

#9
20210091391
2021-03-25

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

#10
20210033645
2021-02-04

Device for detecting current leakage and current leakage detection system including the same

#11
20190305346
2019-10-03

Fuel cell response to electrical grid frequency events

#12
20190088961
2019-03-21

Fuel cell system and method of controlling fuel cell system

#13
20180287171
2018-10-04

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

#14
20180183123
2018-06-28

Portable computing device for external fuel cell control

#15
20180126868
2018-05-10

Fuel cell vehicle and method for controlling fuel cell vehicle

#16
20180048005
2018-02-15

Test cell of an apparatus for characterising a cell of a fuel cell and method for producing such a test cell

#17
20170365892
2017-12-21

Fuel cell system and control method of the same

#18
20170356951
2017-12-14

System and method for measuring insulation resistance of fuel cell vehicle

#19
20170229723
2017-08-10

Fuel cell system and method of control of same

#20
20170214068
2017-07-27

Apparatus for measuring an impedance of fuel cell and method of measuring an impedance of fuel cell

#21
20170179511
2017-06-22

Method of controlling purge of fuel cell system for vehicle

#22
20170155161
2017-06-01

ELECTRICAL CONNECTOR AND ELECTROCHEMICAL REACTOR EQUIPPED WITH SUCH AN ELECTRICAL CONNECTOR

#23
20170047599
2017-02-16

Fuel Cell System Coupled to a Portable Computing Device

#24
20160351927
2016-12-01

Fuel source, fuel cell system and associated method

#25
20160087294
2016-03-24

Hydrogen-generating fuel cell cartridges

#26
20160087293
2016-03-24

Ventilation apparatus and control method thereof

#27
20160064756
2016-03-03

Fuel cell system and method of controlling the fuel cell system

#28
20160043421
2016-02-11

Fuel cell system ion exchanger

#29
20150295293
2015-10-15

Power controlling apparatus

#30
20150249280
2015-09-03

Fuel cell system to power a portable computing device

#31
20150244186
2015-08-27

POWER SUPPLY DEVICE

#32
20150207512
2015-07-23

Power supply system and method for controlling power supply system

#33
20140120444
2014-05-01

Systems and methods for controlling a compressor recirculation valve

#34
20130320910
2013-12-05

Controlling PEM fuel cell voltage during power transitions and idling

#35
20130176759
2013-07-11

Fuel cell system having a converter which increases an output voltage of a fuel cell

#36
20130157157
2013-06-20

Fuel cell-vehicle communications systems and methods

#37
20110313589
2011-12-22

Fuel cell system coupled to a portable computing device

#38
20110311895
2011-12-22

Fuel cell system to power a portable computing device

#39
20110212374
2011-09-01

Hydrogen-generating fuel cell cartridges

#40
20110129934
2011-06-02

Method for inferring temperature in an enclosed volume

#41
20110093223
2011-04-21

Battery state-of-charge management method

#42
20110008696
2011-01-13

Grid frequency-responsive solid oxide fuel cell system

#43
20100255393
2010-10-07

Fuel cell output control device

#44
20100183932
2010-07-22

Humidity regulation fuel cell

#45
20100143812
2010-06-10

Power supply unit

#46
20090226770
2009-09-10

Fuel cell system and AC impedance measurement method

#47
20090186247
2009-07-23

Fuel cell power supply

#48
20090162710
2009-06-25

Fuel cell system

#49
20090096464
2009-04-16

Electrical leakage detecting device for a fuel cell system

#50
20090085410
2009-04-02

Electronic apparatus and fuel cell system

#51
20090075124
2009-03-19

High temperature fuel cell system with an electrical heater

#52
20090038867
2009-02-12

Mobile body mounted with fuel cell

#53
20080311450
2008-12-18

COOLING APPARATUS FOR FUEL CELL

#54
20080119950
2008-05-22

FUEL SUPPLY SYSTEM AND OPERATING METHOD THEREFORE

#55
20080070069
2008-03-20

Fuel cell cartridge having residual fuel measuring unit and method of measuring residual fuel of fuel cell system having the same

#56
20080063905
2008-03-13

Fuel cell having actuator controlling unit and method of operating the same

#57
20080003473
2008-01-03

MICRO FUEL CELL SYSTEM

#58
20070264546
2007-11-15

Hydrogen-producing fuel cell systems with load-responsive feedstock delivery systems

#59
20060251936
2006-11-09

System and method for distributing fuel to multiple fuel cells

#60
20060078773
2006-04-13

Method and system for controlling and recovering short duration bridge power to maximize backup power

#61
20060055246
2006-03-16

Method and arrangement for controlling a switching connection between the electrical outputs of a fuel cell and an isolated electrical network

#62
20050249992
2005-11-10

Power supply system and abnormal detection method for the power supply system

#63
20050058865
2005-03-17

Self -thawing fuel cell

#64
20050014043
2005-01-20

Power supply unit

#65
18077112
2023-12-26

Fuel cell system air throttle for hybrid power control