ClassID:

213498

H01M8/04559 - page 4 - 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; Voltage of fuel cell stacks

Recent Application in this class:
#901
20070059570
2007-03-15

Fuel cell system with integral gas and refrigerant drive device

#902
20070054166
2007-03-08

Fuel cell system and method of controlling electrical energy discharged in the fuel cell system

#903
20070054165
2007-03-08

Energy output device and control method of energy output device

#904
20070048568
2007-03-01

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

#905
20070048566
2007-03-01

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

#906
20070048560
2007-03-01

Method and apparatus for water management in direct methanol fuel cell system using heat exchanger

#907
20070042243
2007-02-22

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

#908
20070042235
2007-02-22

Fuel cell system

#909
20070026278
2007-02-01

Fuel cell system and charge amount adjustment method for energy storage

#910
20070026273
2007-02-01

Device and method for controlling fuel cell system with vibration amplitude detection

#911
20070022825
2007-02-01

Fuel cell system having fluidic oscillation flow meter

#912
20070013382
2007-01-18

Method for detection and diagnosis of isolation faults in fuel cell hybrid vehicles

#913
20070003805
2007-01-04

Fuel cell system and method for stopping operation of fuel cell system

#914
20060292429
2006-12-28

Fuel utilisation in electrochemical fuel cells

#915
20060289213
2006-12-28

HYDROGEN FUEL CELL VEHICLE WITH WIRELESS DIAGNOSTICS

#916
20060286420
2006-12-21

Fuel cell system configured to detect failure and process for dealing with failure of the system

#917
20060286418
2006-12-21

Fuel cell system for setting predetermined operation state when substitutional value control is impossible

#918
20060284591
2006-12-21

Monitoring system for fuel cell stack

#919
20060280977
2006-12-14

Fuel cell system

#920
20060275634
2006-12-07

METHOD FOR CONTROLLING OUTPUT POWER OF FUEL CELL

#921
20060269810
2006-11-30

Polymer electrolyte fuel cell

#922
20060269805
2006-11-30

Liquid-type fuel cell system and control circuit of the same

#923
20060263653
2006-11-23

Management via dynamic water holdup estimator in a fuel cell

#924
20060257710
2006-11-16

Fuel cells with multidirectional fuel flow

#925
20060257697
2006-11-16

Fuel cell apparatus and method for downhole power systems

#926
20060246329
2006-11-02

Systems and methods for adaptive energy management in a fuel cell system

#927
20060246326
2006-11-02

Start up of cascaded fuel cell stack

#928
20060240291
2006-10-26

Power supply apparatus using fuel cell and method of controlling the same

#929
20060234094
2006-10-19

Control device of vehicular fuel cell system and related method

#930
20060234092
2006-10-19

Method to begin coolant circulation to prevent MEA overheating during cold start

#931
20060228600
2006-10-12

Fuel cell unit and method of measuring remaining amount of fuel

#932
20060228599
2006-10-12

Fuel cell unit and method for controlling the same

#933
20060228594
2006-10-12

Method for shutting down fuel cell and fuel cell system using the same

#934
20060222924
2006-10-05

Prevention of flooding of fuel cell stack

#935
20060222916
2006-10-05

Mehotd for determining a maximum power point voltage of a fuel cell, as well as fuel cell control system and power controller used in the fuel cell control system

#936
20060222910
2006-10-05

Electric system for fuel cell, fuel cell vehicle, and method of supplying electric power

#937
20060222909
2006-10-05

Electric system for fuel cell, fuel cell vehicle, and method of supplying electric power

#938
20060216560
2006-09-28

Fuel cell systems

#939
20060210849
2006-09-21

Fuel cell system and gas control method

#940
20060204804
2006-09-14

Fuel cell system

#941
20060194082
2006-08-31

Systems and methods for protecting a fuel cell

#942
20060188766
2006-08-24

Fuel cell system and method of controlling same

#943
20060188765
2006-08-24

Fuel cell system and method of shutting down the same

#944
20060183010
2006-08-17

Electrochemical cells

#945
20060177711
2006-08-10

Fuell cell control and data reporting

#946
20060177708
2006-08-10

Fuel cell power system and operating method thereof

#947
20060172164
2006-08-03

Fuel cell and fuel cell system

#948
20060172160
2006-08-03

Fuel cell system

#949
20060172159
2006-08-03

Method for regeneration of performance in a fuel cell

#950
20060159966
2006-07-20

Fuel cell system and method of stopping operation of the fuel cell system

#951
20060154134
2006-07-13

Fuel cell system with carbon monoxide catalyst

#952
20060154133
2006-07-13

Method and apparatus for forming a fuel cell flow field with an electrolyte retaining material

#953
20060154132
2006-07-13

Fuel-cell-equipped apparatus and fuel cartridge

#954
20060154119
2006-07-13

Method for regeneration of performance in a fuel cell

#955
20060147770
2006-07-06

Reduction of voltage loss caused by voltage cycling by use of a rechargeable electric storage device

#956
20060141299
2006-06-29

Detecting and handling a fault condition in a fuel cell system

#957
20060134509
2006-06-22

Method and apparatus for metal coated silicon fuel cell electrode

#958
20060134503
2006-06-22

Pillared fuel cell electrode system

#959
20060134497
2006-06-22

Manifold system for a fuel cell

#960
20060134473
2006-06-22

Methods for operating a fuel cell system under reduced load conditions

#961
20060127729
2006-06-15

Fuel cell

#962
20060127721
2006-06-15

Fuel cell control and data reporting

#963
20060127708
2006-06-15

Method and apparatus for carbon coated silicon fuel cell electrode

#964
20060126315
2006-06-15

Electrical circuit interface board for connecting fuel cell

#965
20060124367
2006-06-15

Method for operating an electrically driven motor vehicle and device therefor

#966
20060121322
2006-06-08

Systems and methods for fuel cell shutdown

#967
20060115701
2006-06-01

Insulating mount structure, insulation monitoring system, and insulation monitoring method for fuel cells

#968
20060115698
2006-06-01

Liquid fuel cell system and boosting unit of the same

#969
20060110639
2006-05-25

Fuel cell with a regulated output

#970
20060110635
2006-05-25

Fuel cell system, gas replacement method for fuel cell system, and device for fuel cell system

#971
20060105212
2006-05-18

Fuel cell system

#972
20060102397
2006-05-18

Method and apparatus for controlling a hybrid power supply system in a vehicle

#973
20060099467
2006-05-11

Integrated high temperature PEM fuel cell system

#974
20060099464
2006-05-11

Fuel and air flow control in a multi-stack fuel cell power plant

#975
20060088738
2006-04-27

Fuel cell system and control method

#976
20060083965
2006-04-20

Low voltage compressor operation for a fuel cell power system

#977
20060083963
2006-04-20

Hydrogen passivation shut down system for a fuel cell power plant

#978
20060083030
2006-04-20

Power converter for fuel battery

#979
20060078788
2006-04-13

Method for monitoring the operational state of a fuel cell stack

#980
20060078780
2006-04-13

Hydrogen passivation shut down system for a fuel cell power plant

#981
20060074574
2006-04-06

Technique and apparatus to measure a fuel cell parameter

#982
20060068243
2006-03-30

Method for controlling nitrogen fraction in a fuel cell

#983
20060068236
2006-03-30

Advanced shutdown strategy to improve safety and efficiency of fuel cell vehicles

#984
20060057442
2006-03-16

Method and apparatus for controlling a fuel cell system

#985
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

#986
20060051649
2006-03-09

Fuel cell system

#987
20060051634
2006-03-09

Power controller for fuel cell

#988
20060051628
2006-03-09

Diagnostic method for an electrochemical fuel cell and fuel cell components

#989
20060046116
2006-03-02

Series type air supply system for fuel cell-powered vehicles

#990
20060035118
2006-02-16

Method for detecting a gas leak in a pem fuel cell

#991
20060035115
2006-02-16

Power supply and control method therefor

#992
20060029851
2006-02-09

Fuel cell with electroosmotic pump

#993
20060029846
2006-02-09

Fuel cell system

#994
20060024540
2006-02-02

Shared variable-based fuel cell system control

#995
20060019141
2006-01-26

Fuel supply method for direct methanol fuel cell

#996
20060014063
2006-01-19

Fuel cell system

#997
20060014058
2006-01-19

Method and apparatus for controlling a combined heat and power fuel cell system

#998
20060008689
2006-01-12

Fuel cell system

#999
20060006108
2006-01-12

Fuel cell cartridge and fuel delivery system

#1000
20060003205
2006-01-05

Fuel cell system, mobile unit equipped with the system, and control method for the fuel cell system

#1001
20060003199
2006-01-05

Method and apparatus for controlling a combined heat and power fuel cell system

#1002
20060003197
2006-01-05

Self-starting fuel cell assembly

#1003
20050287412
2005-12-29

Active control strategy for PEM fuel cell liquid water evacuation

#1004
20050287403
2005-12-29

Method and apparatus for controlling a combined heat and power fuel cell system

#1005
20050287402
2005-12-29

AC impedance monitoring of fuel cell stack

#1006
20050282050
2005-12-22

Integrated fuel cell stack thermostat

#1007
20050277003
2005-12-15

FCPM freeze start heater

#1008
20050275983
2005-12-15

Protection circuits for hybrid power systems

#1009
20050271911
2005-12-08

Method of controlling fuel cell system

#1010
20050266283
2005-12-01

Fuel cell system shunt regulator method and apparatus

#1011
20050260463
2005-11-24

Fluid flow pulsing for increased stability in PEM fuel cell

#1012
20050249989
2005-11-10

Apparatus and method for hybrid power module systems

#1013
20050249988
2005-11-10

Apparatus and method for hybrid power module systems

#1014
20050244688
2005-11-03

Power generation control system for fuel cell

#1015
20050233192
2005-10-20

Fuel cell system having secondary cell

#1016
20050233189
2005-10-20

Power supply system, fuel pack constituting the system, and device driven by power generator and power supply system

#1017
20050221146
2005-10-06

Separator and fuel cell using that separator

#1018
20050214607
2005-09-29

Polymer electrolyte fuel cell power generation system and stationary co-generation system using the same

#1019
20050214606
2005-09-29

Power system for fuel cell, electronic equipment and electric power feeding method

#1020
20050206342
2005-09-22

Integrated fuel cell controller for devices

#1021
20050197751
2005-09-08

Control device and method for fuel cell powered vehicle

#1022
20050191537
2005-09-01

Fuel cell gasket having an integrated sensor

#1023
20050186455
2005-08-25

Micro fuel cell system start up and shut down systems and methods

#1024
20050164048
2005-07-28

Current control for parallel fuel cell stacks

#1025
20050158614
2005-07-21

System and method for optimizing efficiency and power output from a vanadium redox battery energy storage system

#1026
20050153174
2005-07-14

Monitor device for fuel cell

#1027
20050147863
2005-07-07

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

#1028
20050142407
2005-06-30

Start up cascaded fuel cell stack

#1029
20050142406
2005-06-30

Fuel cell system and method of operating the same

#1030
20050129993
2005-06-16

Purging anode channels of a fuel cell stack

#1031
20050123814
2005-06-09

Apparatus and method for heating fuel cells

#1032
20050123809
2005-06-09

Methods of removing contaminants from a fuel cell electrode

#1033
20050118472
2005-06-02

Power management system for hybrid fuel cell and battery driven electric vehicles

#1034
20050118466
2005-06-02

Method for initial activation of polymer electrolyte fuel cell

#1035
20050112420
2005-05-26

Power supply device

#1036
20050112419
2005-05-26

Controlling solid oxide fuel cell operation

#1037
20050110453
2005-05-26

Dynamic fuel cell system management controller

#1038
20050106432
2005-05-19

Electric storage augmentation of fuel cell system transient response

#1039
20050093506
2005-05-05

Fuel cell management system and audio system provided with the management system

#1040
20050092617
2005-05-05

Automatic measurement of fuel cell resistance

#1041
20050089729
2005-04-28

Technique and apparatus to control the response of a fuel cell system to load transients

#1042
20050079396
2005-04-14

Fuel cell unit and power control method

#1043
20050076075
2005-04-07

Method for determining specifications of fuel cell power generation system and fuel cell power generation system

#1044
20050069739
2005-03-31

Battery unit and power supply control method

#1045
20050069735
2005-03-31

Polymer electrolyte membrane fuel cell system

#1046
20050068002
2005-03-31

Cell unit and power supply control method

#1047
20050058885
2005-03-17

Measuring fuel by counting coulombs

#1048
20050058857
2005-03-17

Hybrid power system and method

#1049
20050053810
2005-03-10

Method and system for starting up fuel cell stack at subzero temperatures, and method of designing fuel cell stack

#1050
20050048335
2005-03-03

Apparatus and method for regulating hybrid fuel cell power system output

#1051
20050037247
2005-02-17

Fuel cell system and method for removal of water from fuel cells

#1052
20050031917
2005-02-10

Hydrogen passivation shut down system for a fuel cell power plant

#1053
20050014042
2005-01-20

Apparatus for controlling a fuel cell device, and a fuel cell device

#1054
20050014040
2005-01-20

Fuel preheat in fuel cells and portable electronics

#1055
20050008909
2005-01-13

Efficient micro fuel cell systems and methods

#1056
20050007144
2005-01-13

Fuel cell testing system having an energy conversion system for providing a useful output

#1057
20050007063
2005-01-13

Power supply adapter and power supply system

#1058
18987143
2025-09-23

Prediction method of electrochemical and mechanical performances in SOFC cold and hot cycle

#1059
18324748
2023-09-12

Dynamic adjustment of current or power draw for fuel cell applications with enhanced transient capabilities

#1060
14640866
2019-06-11

Fuel Cell Power Management