ClassID:

213449

H01M8/04194 - CPC Classification

Classification description:

Fuel cells; Manufacture thereof; Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids; Arrangements for control of reactant parameters, e.g. pressure or concentration of liquid-charged or electrolyte-charged reactants Concentration measuring cells

Recent Application in this class:
#1
20240413369
2024-12-12

METHOD FOR RECOVERING CAPACITY OF VANADIUM REDOX FLOW BATTERY

#2
20240282995
2024-08-22

HYBRID REDOX FUEL CELL SYSTEM

#3
20240113313
2024-04-04

APPARATUS AND METHOD FOR DETERMINING STATE OF CHARGE IN A REDOX FLOW BATTERY VIA LIMITING CURRENTS

#4
20240097172
2024-03-21

INLINE SENSORS FOR ELECTROLYTE PRECIPITATION DETECTION IN REDOX FLOW BATTERY SYSTEM

#5
20230307684
2023-09-28

LIQUID MEMBRANE CELL ASSEMBLIES

#6
20230131299
2023-04-27

CELL FOR ELECTROCHEMICALLY DETERMINING ACTIVE SPECIES CONCENTRATIONS IN REDOX FLOW BATTERIES

#7
20230105427
2023-04-06

Hybrid redox fuel cell system

#8
20220069323
2022-03-03

METHOD AND APPARATUS FOR ASSESSING THE SUITABILITY OF A FUEL FOR USE IN A FUEL CELL

#9
20210098804
2021-04-01

Auxiliary electrode mediated membrane-free redox electrochemical cell for energy storage

#10
20200381751
2020-12-03

Apparatus and method for determining state of charge in a redox flow battery via limiting currents

#11
20200328435
2020-10-15

Cell for electrochemically determining active species concentrations in redox flow batteries

#12
20190165384
2019-05-30

Redox flow battery, electrical quantity measurement system, and electrical quantity measurement method

#13
20180159155
2018-06-07

Method for measuring and controlling methanol concentration in a methanol fuel cell

#14
20170244110
2017-08-24

INTEGRATED METHODS AND SYSTEMS FOR ELECTRICAL MONITORING OF CANCER CELLS STIMULATED BY ELECTROMAGNETIC WAVES

#15
20160293979
2016-10-06

Apparatus and method for determining state of charge in a redox flow battery via limiting currents

#16
20160190621
2016-06-30

Fuel cell supply including information storage device and control system

#17
20160020476
2016-01-21

Operational control of fuel cells

#18
20120270125
2012-10-25

Fuel cell supply including information storage device and control system

#19
20120225360
2012-09-06

METHOD FOR OPERATING A FUEL CELL

#20
20120189922
2012-07-26

METHOD FOR OPERATING A FUEL CELL, AND A CORRESPONDING FUEL CELL

#21
20120107712
2012-05-03

METHOD FOR OPERATING A FUEL CELL, AND A CORRESPONDING FUEL CELL

#22
20120021331
2012-01-26

Nanostructured catalyst supports

#23
20120003566
2012-01-05

FUEL CARTRDIGE FOR FUEL CELL

#24
20110281182
2011-11-17

FUEL ANALYZING METHOD AND FUEL ANALYZING DEVICE FOR FUEL CELL, AND FUEL CELL

#25
20110274990
2011-11-10

Methanol and Hydrogen Peroxide Fuel Cell with Hydroxyl Ion Exchange Membrane

#26
20110223497
2011-09-15

FUEL CELL

#27
20110217614
2011-09-08

DIRECT FORMIC ACID FUEL CELL PERFORMING REAL TIME MEASUREMENT AND CONTROL OF CONCENTRATION OF FORMIC ACID AND OPERATION METHOD THEREOF

#28
20110151343
2011-06-23

FUEL CELL SYSTEM

#29
20110123889
2011-05-26

Fuel cell supply including information storage device and control system

#30
20110070509
2011-03-24

Fuel cell system having two fuel cell stacks connected in series

#31
20110008697
2011-01-13

Controlling the fuel concentration for a fuel cell

#32
20100330438
2010-12-30

PASSIVE DILUTION UNIT FOR DILUTING FUELS

#33
20100330397
2010-12-30

Microbial power generation device

#34
20100316920
2010-12-16

Electrochemical energy generating apparatus and operating method thereof, and electrochemical device

#35
20100261075
2010-10-14

FUEL SENSOR-LESS CONTROL METHOD FOR SUPPLYING FUEL TO FUEL CELL

#36
20100255395
2010-10-07

Fuel cell system and control method thereof

#37
20100233573
2010-09-16

Method of fabricating electrode catalyst layers with directionally oriented carbon support for proton exchange membrane fuel cell

#38
20100221643
2010-09-02

Hydrazine fixing detection system

#39
20100196769
2010-08-05

FUEL CELL SYSTEM

#40
20100136697
2010-06-03

Apparatus and method of measuring concentration of fuel

#41
20100112400
2010-05-06

Fuel cell supply including information storage device and control system

#42
20100086816
2010-04-08

Electronic device and electronic device operating control method

#43
20090274934
2009-11-05

Fuel cell system and starting method therefor

#44
20090269625
2009-10-29

Methods and systems for determining and controlling fuel concentrations in fuel cells

#45
20090178467
2009-07-16

MULTI-PURPOSE CONCENTRATION SENSORS AND TEST METHODS

#46
20090141282
2009-06-04

CONCENTRATION MEASURING STRUCTURE CAPABLE OF REDUCING THE EFFECT OF ENVIRONMENTAL TEMPERATURE

#47
20090136792
2009-05-28

Method of measuring concentration of fuel

#48
20090130497
2009-05-21

Fuel cell system and starting method therefor

#49
20090123794
2009-05-14

FUEL CELL CIRCULATION SYSTEM AND FLUID MANAGEMENT METHOD AND SHUTDOWN PROCEDURE THEREFOR

#50
20090123785
2009-05-14

FUEL CELL SYSTEM AND CONTROL METHOD THEREFOR

#51
20090110983
2009-04-30

FUEL CELL SYSTEM

#52
20090110982
2009-04-30

Sensing pipe and fuel cell system using the same

#53
20090110968
2009-04-30

METHOD AND APPARATUS FOR CONTROLLING FUEL CONCENTRATION IN DIRECT LIQUID FUEL CELL

#54
20090110965
2009-04-30

METHOD FOR SUPPLYING FUEL TO FUEL CELL

#55
20090092884
2009-04-09

Fuel cell

#56
20090092867
2009-04-09

FUEL CELL SYSTEM AND METHOD FOR OPERATING A FUEL CELL SYSTEM

#57
20090081507
2009-03-26

FUEL CELL SYSTEM

#58
20090081504
2009-03-26

FUEL CELL

#59
20090081503
2009-03-26

FUEL CELL SYSTEM AND DRIVING METHOD THEREOF

#60
20090061266
2009-03-05

Method of driving fuel cell device

#61
20090029212
2009-01-29

FUEL CELL SYSTEM AND ELECTRONIC DEVICE

#62
20090029210
2009-01-29

Low-Temperature Fuel-Cell Stack and Method of Operating Same

#63
20090017357
2009-01-15

Direct oxidation fuel cell and method for operation thereof

#64
20080280169
2008-11-13

Nanowire structures comprising carbon

#65
20080280167
2008-11-13

FUEL CELL STACK PERFORMANCE MONITORING

#66
20080268311
2008-10-30

Fuel cell system

#67
20080246953
2008-10-09

TRANSMISSION CONCENTRATION DEVICE CAPABLE OF REDUCING ENVIRONMENTAL TEMPERATURE EFFECT

#68
20080241629
2008-10-02

Fuel cell having fuel tank directly attached to anode allowing pump-free fuel delivery

#69
20080241619
2008-10-02

FUEL CELL APPARATUS

#70
20080238355
2008-10-02

FUEL CELL SYSTEM AND OPERATION METHOD THEREFOR

#71
20080233444
2008-09-25

FUEL CELL SYSTEM

#72
20080233438
2008-09-25

Fuel for fuel cell, fuel cell and application thereof

#73
20080233437
2008-09-25

Fuel Cell System and Control Method Therefor

#74
20080202085
2008-08-28

Gas-liquid separation system and fuel cell system

#75
20080193813
2008-08-14

Fuel Cell Device and Mobile Electronic Device with the Same

#76
20080187800
2008-08-07

WATER RECYCLING SYSTEM FOR FUEL CELL

#77
20080187795
2008-08-07

Use of an Electrochemical Cell Such as a Fuel Cell

#78
20080171240
2008-07-17

Fuel cell system and control method of the same

#79
20080166607
2008-07-10

Fuel Cell System and Transporting Equipment Including the Same

#80
20080124595
2008-05-29

FUEL CELL SYSTEM AND OPERATION METHOD THEREFOR

#81
20080113238
2008-05-15

FUEL CELL SYSTEM AND TRANSPORTATION EQUIPMENT INCLUDING THE SAME

#82
20080107942
2008-05-08

Fuel cell system and transportation equipment including the same

#83
20080107940
2008-05-08

Fuel cell system for computing fuel level

#84
20080085431
2008-04-10

FUEL CELL SYSTEM

#85
20080075988
2008-03-27

FUEL CELL SYSTEM AND METHOD OF CONTROLLING A FUEL CELL SYSTEM

#86
20080070075
2008-03-20

FUEL CELL SYSTEM

#87
20080057364
2008-03-06

Fuel cell device, control device, and program cross-reference to related applications

#88
20080044705
2008-02-21

Density sensing device and fuel cell system with it

#89
20080044694
2008-02-21

Fuel cell system and method of operating the same

#90
20080026273
2008-01-31

Fuel cell system and control method therefor

#91
20080026272
2008-01-31

Fuel supply system for fuel cell and fuel cell system using the same

#92
20080026265
2008-01-31

Electrochemical cells comprising laminar flow induced dynamic conducting interfaces, electronic devices comprising such cells, and methods employing same

#93
20070298312
2007-12-27

Membrane-electrode unit for direct methanol fuel cells (DMFC)

#94
20070287055
2007-12-13

Fuel cell system

#95
20070275277
2007-11-29

Fuel cell and fuel supply module thereof

#96
20070275274
2007-11-29

METHOD OF CALCULATING FUEL CONCENTRATION IN DIRECT METHANOL FUEL CELL

#97
20070264548
2007-11-15

Fuel cell system and control method thereof

#98
20070264545
2007-11-15

Refractive fuel concentration detector

#99
20070264544
2007-11-15

Method and apparatus for controlling operation of direct methanol fuel cell system

#100
20070261485
2007-11-15

Flowing device for optics-based methanol sensor

#101
20070259229
2007-11-08

FUEL CELL ACTIVATION METHOD AND THE DEVICE THEREOF

#102
20070259227
2007-11-08

Fuel cell system and control method therefor

#103
20070254201
2007-11-01

ANODE FLOW FIELD BOARD FOR FUEL CELL

#104
20070238002
2007-10-11

Fuel cell system with acid trap

#105
20070231627
2007-10-04

CONCENTRATION DETECTION DEVICE AND THE DETECTION METHOD

#106
20070224470
2007-09-27

Modular fuel cell

#107
20070218323
2007-09-20

Methods of operating fuel cell power generators, and fuel cell power generators

#108
20070202369
2007-08-30

DIRECT FORMIC ACID FUEL CELL PERFORMING REAL TIME MEASUREMENT AND CONTROL OF CONCENTRATION OF FORMIC ACID AND OPERATION METHOD THEREOF

#109
20070184316
2007-08-09

FUEL CELL ELECTRICITY MEASURING METHOD AND APPARATUS

#110
20070178367
2007-08-02

Direct oxidation fuel cell and method for operating direct oxidation fuel cell system

#111
20070178358
2007-08-02

Direct liquid feed fuel cell system

#112
20070178343
2007-08-02

Fuel cell system and operating method thereof

#113
20070166583
2007-07-19

FUEL CELL SYSTEM AND OPERATING METHOD THEREOF

#114
20070154754
2007-07-05

Direct methanol fuel cell system and operating method thereof

#115
20070154352
2007-07-05

CONCENTRATION DETECTOR AND METHOD OF USING THE SAME

#116
20070148506
2007-06-28

METHOD OF CALCULATING FUEL CONCENTRATION IN A LIQUID FUEL CELL

#117
20070141448
2007-06-21

Direct-type fuel cell and direct-type fuel cell system

#118
20070141413
2007-06-21

Fuel cell sensors and methods

#119
20070125696
2007-06-07

Device and method for increasing the concentration of fuel in a liquid flow supplied to the anode of a fuel cell

#120
20070122673
2007-05-31

Direct liquid feed fuel cell system having double fuel storage

#121
20070113624
2007-05-24

Concentration detector and fuel supplier with said detector

#122
20070111077
2007-05-17

Carbon dioxide remover for direct oxidation fuel cell and fuel cell system having the same

#123
20070104984
2007-05-10

Method for controlling peripheral system and fuel cell system using the same

#124
20070099045
2007-05-03

FUEL CELL DEVICE CAPABLE OF ADJUSTING OPERATIONAL PARAMETERS

#125
20070099044
2007-05-03

Fuel cartridge monitoring device for fuel cells

#126
20070099041
2007-05-03

Fuel cell with IC components

#127
20070092773
2007-04-26

Organic vapor fuel cell

#128
20070092770
2007-04-26

Method of measuring alcohol concentration, alcohol concentration measurement apparatus, and fuel cell system including the apparatus

#129
20070082244
2007-04-12

Control device for fuel cell system and related method

#130
20070082241
2007-04-12

Fuel cell apparatus of feedback module

#131
20070077482
2007-04-05

Fuel cell system and fuel storage apparatus

#132
20070077471
2007-04-05

Fuel cell system with differential pressure sensor

#133
20070077464
2007-04-05

METHOD OF CONTROLLING FUEL CONCENTRATION IN A DIRECT LIQUID FUEL CELL

#134
20070072022
2007-03-29

FUEL CELL SYSTEM AND TRANSPORT EQUIPMENT INCLUDING THE SAME

#135
20070065709
2007-03-22

Method and apparatus for porous catalyst on a fuel cell flow field and high temperature membrane

#136
20070059589
2007-03-15

Optical member for measuring concentration, concentration measurement unit including the optical member, and fuel cell

#137
20070059583
2007-03-15

Fuel cell system

#138
20070059575
2007-03-15

Fuel cell

#139
20070059568
2007-03-15

Electronic equipment with fuel cell-power supply unit

#140
20070048567
2007-03-01

Fuel cell unit and method of correcting measurement value

#141
20070048566
2007-03-01

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

#142
20070048560
2007-03-01

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

#143
20060292424
2006-12-28

Mixing tank and fuel cell system having the same

#144
20060292423
2006-12-28

Fuel cell unit having suction port and exhaust port

#145
20060292421
2006-12-28

Fuel cell device

#146
20060292412
2006-12-28

Thermal-fluids management system for direct methanol fuel cells

#147
20060286427
2006-12-21

Liquid fuel, fuel cartridge and fuel cell

#148
20060286421
2006-12-21

Fuel supply control method and system for fuel cells

#149
20060272943
2006-12-07

A versatile electrochemical sensor for sensing fuel concentration in an aqueous solution

#150
20060269827
2006-11-30

Method of fabricating electrode catalyst layers with directionally oriented carbon support for proton exchange membrane fuel cell

#151
20060234104
2006-10-19

Fuel cell system with a cathode gas recycling function

#152
20060228600
2006-10-12

Fuel cell unit and method of measuring remaining amount of fuel

#153
20060228599
2006-10-12

Fuel cell unit and method for controlling the same

#154
20060222915
2006-10-05

Direct-methanol fuel cell system and method for controlling the same

#155
20060222914
2006-10-05

FUEL CELL CARTRIDGE AND FUEL CELL SYSTEM

#156
20060216557
2006-09-28

Fuel cell system and method of operating fuel cell system

#157
20060210867
2006-09-21

Membraneless electrochemical cell and microfluidic device without pH constraint

#158
20060204817
2006-09-14

Fuel cell device and electronic appliance

#159
20060197063
2006-09-07

Shaped porous materials

#160
20060177709
2006-08-10

Fuel cell

#161
20060177708
2006-08-10

Fuel cell power system and operating method thereof

#162
20060159968
2006-07-20

Fuel cell apparatus and method for feeding a fuel for fuel cell

#163
20060159965
2006-07-20

Fuel cell system and cleaning system

#164
20060154134
2006-07-13

Fuel cell system with carbon monoxide catalyst

#165
20060154133
2006-07-13

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

#166
20060141338
2006-06-29

Direct oxidation fuel cell and system operating on concentrated fuel using low oxidant stoichiometry

#167
20060141322
2006-06-29

Fuel cell system

#168
20060134509
2006-06-22

Method and apparatus for metal coated silicon fuel cell electrode

#169
20060134503
2006-06-22

Pillared fuel cell electrode system

#170
20060134497
2006-06-22

Manifold system for a fuel cell

#171
20060127708
2006-06-15

Method and apparatus for carbon coated silicon fuel cell electrode

#172
20060105220
2006-05-18

Bipolar fuel cell board

#173
20060105210
2006-05-18

Direct methanol feed fuel cell and system

#174
20060105208
2006-05-18

Fuel cell unit

#175
20060099468
2006-05-11

Electronic device and electronic device operating control method

#176
20060099465
2006-05-11

Method and device for limiting crossover in fuel cell systems

#177
20060068241
2006-03-30

Information processing apparatus system, fuel cell unit, and display method thereof

#178
20060063053
2006-03-23

Direct methanol fuel cell, method for detecting fuel level, and method for detecting methanol concentration

#179
20060046133
2006-03-02

Direct methanol feed fuel cell and system

#180
20060040146
2006-02-23

Liquid circulation type fuel cell and control method therefor

#181
20060035136
2006-02-16

Electrochemical cells comprising laminar flow induced dynamic conducting interfaces, electronic devices comprising such cells, and methods employing same

#182
20060027777
2006-02-09

Embedded control valve using homopolar motor

#183
20060024537
2006-02-02

Fuel cell system and method of controlling fuel cell

#184
20060024536
2006-02-02

Fuel cell system

#185
20060019141
2006-01-26

Fuel supply method for direct methanol fuel cell

#186
20060003200
2006-01-05

Fuel cell unit and method for calibrating concentration value

#187
20050282054
2005-12-22

Fuel cell device

#188
20050255358
2005-11-17

Single pump fuel cell system

#189
20050238932
2005-10-27

Fuel cell power source, method of operating thereof and portable electronic equipment

#190
20050214601
2005-09-29

Direct methanol type fuel cell power generator and operating method thereof

#191
20050181255
2005-08-18

Structures of the proton exchange membranes with different molecular permeabilities

#192
20050181250
2005-08-18

Methods and apparatuses for managing fluids in a fuel cell system

#193
20050152568
2005-07-14

Hearing device with fuel cell

#194
20050147854
2005-07-07

Fuel cell system

#195
20050130007
2005-06-16

Fuel cell system for low pressure operation

#196
20050118468
2005-06-02

Fuel cell supply including information storage device and control system

#197
20050112417
2005-05-26

Fuel cell system for an automotive vehicle

#198
20050095467
2005-05-05

Fuel cell

#199
20050079392
2005-04-14

Fuel cell apparatus and method of controlling the same

#200
20050074656
2005-04-07

Fuel cell, electronic appliance and business method

#201
20050069738
2005-03-31

Fuel cell

#202
20050053811
2005-03-10

Apparatus and methods for sensor-less optimization of methanol concentration in a direct methanol fuel cell system

#203
20050042487
2005-02-24

Direct methanol feed fuel cell and system

#204
20050026021
2005-02-03

Fuel cell

#205
20050014041
2005-01-20

Management system for a fuel cell and method thereof

#206
20050008924
2005-01-13

Compact multi-functional modules for a direct methanol fuel cell system

#207
20050008923
2005-01-13

Water management in a direct methanol fuel cell system

#208
20050003256
2005-01-06

Carbon dioxide management in a direct methanol fuel cell system

#209
20050003254
2005-01-06

Direct methanol feed fuel cell and system