ClassID:

213248

H01M4/8642 - CPC Classification

Classification description:

Electrodes; Inert electrodes with catalytic activity, e.g. for fuel cells with a gradient in another property than porosity Gradient in composition

Recent Application in this class:
#1
20260149005
2026-05-28

FUEL CELL

#2
20260135119
2026-05-14

ELECTROCHEMICAL CELL, ELECTROCHEMICAL CELL DEVICE, MODULE, AND MODULE HOUSING DEVICE

#3
20250279441
2025-09-04

PATTERNED CATALYST LAYERS IN FUEL CELLS

#4
20230307667
2023-09-28

Patterned catalyst layers in fuel cells

#5
20230238543
2023-07-27

METHOD FOR PRODUCING A CATALYST-COATED MEMBRANE

#6
20230238542
2023-07-27

Fuel cell limiting co poisoning and poisoning diagnostic process

#7
20230089402
2023-03-23

METHOD FOR PRODUCTION OF A FUEL CELL, DEVICE FOR PRODUCTION OF A MEMBRANE ELECTRODE ASSEMBLY FOR A FUEL CELL, FUEL CELL AND FUEL CELL STACK

#8
20230006217
2023-01-05

Fabrication of membrane electrode assembly with filament extension atomizer spray

#9
20220328856
2022-10-13

HYDROGEN PUMPING PROTON EXCHANGE MEMBRANE ELECTROCHEMICAL CELL WITH CARBON MONOXIDE TOLERANT ANODE AND METHOD OF MAKING THEREOF

#10
20220311016
2022-09-29

Catalyst layer and method for producing the same

#11
20220013790
2022-01-13

Catalyst layers of membrane-electrode assemblies and methods of making same

#12
20210305589
2021-09-30

Layered structure for a fuel cell and method for producing a layered structure of this type

#13
20210226240
2021-07-22

FUEL CELL LIMITING CO POISONING AND POISONING DIAGNOSTIC PROCESS

#14
20200403249
2020-12-24

Locally engineered PEM cells components with optimized operation for improved durability

#15
20200276401
2020-09-03

NASAL ADMINISTRATION

#16
20200176804
2020-06-04

Fuel cell

#17
20200152993
2020-05-14

Flow batteries having an electrode with differing hydrophilicity on opposing faces and methods for production and use thereof

#18
20200036014
2020-01-30

Catalyst for solid polymer fuel cell and method for producing same

#19
20190386320
2019-12-19

Anode for an electrochemical cell and method for producing an electrochemical cell comprising such an anode

#20
20190207225
2019-07-04

Multi-layer catalyst design

#21
20190088968
2019-03-21

Electrochemical cell

#22
20180323441
2018-11-08

Membrane electrode gas diffusion layer assembly and manufacturing method thereof

#23
20180301712
2018-10-18

Carbon sheet, gas diffusion electrode substrate, wound body, and fuel cell

#24
20180269491
2018-09-20

Membrane-electrode assembly for fuel cell, method for manufacturing same, and fuel cell system comprising same

#25
20180261851
2018-09-13

Anode cross-sectional characteristic gradient

#26
20180198142
2018-07-12

Fuel cell system

#27
20180145337
2018-05-24

Solid oxide fuel cell manufacturing method, solid oxide fuel cell and cell module comprising same

#28
20180108916
2018-04-19

Flow batteries having an electrode with differing hydrophilicity on opposing faces and methods for production and use thereof

#29
20180090770
2018-03-29

Positive electrode for metal-air battery and metal-air battery including the same

#30
20180053958
2018-02-22

Smart-MEAs for high power fuel cells

#31
20180040909
2018-02-08

Anode with high redox stability

#32
20180034063
2018-02-01

Anode with remarkable stability under conditions of extreme fuel starvation

#33
20170222245
2017-08-03

SULFUR TOLERANT ANODE FOR SOLID OXIDE FUEL CELL

#34
20170179556
2017-06-22

Cathode for a metal/air battery and methods for manufacturing such a cathode

#35
20170054153
2017-02-23

Solid oxide fuel cell and fuel cell device having zoned composite oxide cathode

#36
20160380272
2016-12-29

METHOD OF FABRICATING A SOLID OXIDE FUEL CELL

#37
20160301085
2016-10-13

Fuel cell and method for manufacturing same

#38
20160233533
2016-08-11

Membrane electrode assembly and method of producing the membrane electrode assembly

#39
20160156041
2016-06-02

Cell materials variation in SOFC stacks to address thermal gradients in all planes

#40
20160111731
2016-04-21

Fuel cell electrode having nitrogen-doped graphene and passage channel

#41
20160087283
2016-03-24

POROUS ELECTRODE SUBSTRATE, METHOD FOR MANUFACTURING SAME, AND POLYMER ELECTROLYTE FUEL CELL

#42
20160020468
2016-01-21

FUNCTIONAL GRADING OF CATHODE INFILTRATION FOR SPATIAL CONTROL OF ACTIVITY

#43
20150194688
2015-07-09

Fuel-cell gas diffusion layer and method of forming the same

#44
20150180099
2015-06-25

Cooling structure

#45
20150125783
2015-05-07

Catalyst for solid polymer fuel cell and method for producing same

#46
20150086883
2015-03-26

Positive electrode for air cell and manufacturing method thereof

#47
20140356757
2014-12-04

Fuel cell electrode with gradient catalyst structure

#48
20140287343
2014-09-25

Fuel cell electrode catalyst layer, fuel cell electrode, fuel cell membrane electrode assembly and fuel cell having a proton-conductive material coated on a catalyst thereof

#49
20140255819
2014-09-11

Gas diffusion substrate

#50
20140242495
2014-08-28

Anode with remarkable stability under conditions of extreme fuel starvation

#51
20140193740
2014-07-10

Fuel cell comprising a proton-exchange membrane, having an increased service life

#52
20140134516
2014-05-15

Gas diffusion layer for fuel cell

#53
20140127606
2014-05-08

Microporous layer sheet for fuel cell and method for producing the same

#54
20120282537
2012-11-08

FUEL CELL

#55
20120251926
2012-10-04

Thin Film Catalyst With Heat-Extendable Wires

#56
20120237849
2012-09-20

Solid oxide fuel cell

#57
20120189924
2012-07-26

Method of operating polymer electrolyte fuel cell

#58
20120186976
2012-07-26

METAL-SUPPORTED ELECTROCHEMICAL CELL AND METHOD FOR FABRICATING SAME

#59
20120178014
2012-07-12

Reaction layer for fuel cell

#60
20120171595
2012-07-05

POWER GENERATION CELL FOR SOLID ELECTROLYTE FUEL CELL AND STRUCTURE OF FUEL ELECTRODE THEREOF

#61
20120121999
2012-05-17

CELL OF A HIGH TEMPERATURE FUEL CELL WITH INTERNAL REFORMING OF HYDROCARBONS

#62
20120107727
2012-05-03

FUEL CELL MODULE AND MANUFACTURING METHOD OF THE SAME

#63
20120082917
2012-04-05

Fuel cell electrodes with graded properties and method of making

#64
20120052402
2012-03-01

Oxygen-consuming electrode with multilayer catalyst coating and process for the production thereof

#65
20110269057
2011-11-03

Reversal tolerant membrane electrode assembly for a fuel cell

#66
20110250523
2011-10-13

FUEL CELL

#67
20110236799
2011-09-29

MANUFACTURING METHODS FOR AIR ELECTRODE

#68
20110212386
2011-09-01

Catalytic materials for fuel cell electrodes and method for their production

#69
20110207016
2011-08-25

DIRECT OXIDATION FUEL CELL

#70
20110195329
2011-08-11

Variable catalyst loading based on flow field geometry

#71
20110183232
2011-07-28

STRUCTURES FOR GAS DIFFUSION ELECTRODES

#72
20110165496
2011-07-07

Fuel cell electrode assembly and method of making the same

#73
20110143254
2011-06-16

Fuel cell with layered electrode

#74
20110114087
2011-05-19

Nasal administration

#75
20110076593
2011-03-31

Direct oxidation fuel cell

#76
20110039183
2011-02-17

Internal reforming anode for solid oxide fuel cells

#77
20110027696
2011-02-03

Method for controlling ionomer and platinum distribution in a fuel cell electrode

#78
20110008705
2011-01-13

Catalytic electrode with gradient porosity and catalyst density for fuel cells

#79
20100330458
2010-12-30

Variable catalyst loading based on flow field geometry

#80
20100304269
2010-12-02

Electrode For Fuel Cell And Method Of Preparing The Same And Membrane Electrode Assembly And Fuel Cell Comprising The Same

#81
20100304240
2010-12-02

Membrane electrode assembly for fuel cell, fuel cell, and fuel cell system

#82
20100279194
2010-11-04

Sulfur tolerant anode for solid oxide fuel cell

#83
20100273077
2010-10-28

Fuel cell, fuel cell system, and method for operating fuel cell

#84
20100261089
2010-10-14

Membrane and electrode assembly and method of producing the same, and polymer electrolyte membrane fuel cell

#85
20100248070
2010-09-30

Variable catalyst loading based on flow field geometry

#86
20100227251
2010-09-09

CATALYST LAYER, MEMBRANE ELECTRODE ASSEMBLY, FUEL CELL, AND METHOD OF PRODUCING THE CATALYST LAYER

#87
20100227244
2010-09-09

Membrane-electrode assembly for fuel cell and fuel cell stack with the same

#88
20100221641
2010-09-02

Stabilized fuel cell flow field

#89
20100221639
2010-09-02

Membrane electrode assembly, manufacturing method thereof and fuel cell

#90
20100178585
2010-07-15

FILM-ELECTRODE ASSEMBLY, FILM-ELECTRODE-GAS DIFFUSION LAYER ASSEMBLY HAVING THE SAME, SOLID STATE POLYMER FUEL CELL, AND FILM-ELECTRODE ASSEMBLY MANUFACTURING METHOD

#91
20100173220
2010-07-08

POLYMER ELECTROLYTE FUEL CELL

#92
20100159351
2010-06-24

MEMBRANE-ELECTRODE ASSEMBLY, AND MEMBRANE-ELECTRODE-(GAS DIFFUSION LAYER) ASSEMBLY AND SOLID POLYMER FUEL CELL EACH COMPRISING THE SAME

#93
20100159298
2010-06-24

FUEL CELL MEMBRANE ELECTRODE ASSEMBLY WITH MULTILAYER CATHODE

#94
20100104925
2010-04-29

ELECTRODE STRUCTURE

#95
20100104924
2010-04-29

Fuel cell electrode structure containing platinum alloy black layer, platinum alloy carbon support layer and substrate layer and fuel cell using the same

#96
20100075190
2010-03-25

Membrane electrode assembly, manufacturing method thereof and fuel cell

#97
20100062307
2010-03-11

DIRECT OXIDATION FUEL CELL

#98
20100062305
2010-03-11

ELECTRODE CATALYST LAYER FOR FUEL CELL AND METHOD OF PRODUCING THE SAME

#99
20100055532
2010-03-04

GAS DIFFUSION LAYER, FUEL CELL AND METHOD FOR FABRICATING FUEL CELL

#100
20100015487
2010-01-21

Catalyst-coated membrane, membrane-electrode assembly, fuel cell and fuel cell stack

#101
20090291345
2009-11-26

Membrane/electrode assembly with multilayered cathode catalyst for polymer electrolyte fuel cells

#102
20090283716
2009-11-19

Method for producing a fuel cell electrode, involving deposition on a support

#103
20090280377
2009-11-12

Direct oxidation fuel cell

#104
20090274941
2009-11-05

Power Generation Cell for Solid Electrolyte Fuel Cell and Structure of Fuel Electrode Thereof

#105
20090269653
2009-10-29

FUEL CELL

#106
20090253013
2009-10-08

ELECTRODE FOR FUEL CELL, MEMBRANE ELECTRODE ASSEMBLY AND FUEL CELL

#107
20090239116
2009-09-24

ASSEMBLY FOR FUEL CELL, FUEL CELL, AND METHOD FOR MANUFACTURING FUEL CELL

#108
20090191439
2009-07-30

Fuel cell

#109
20090098434
2009-04-16

FUEL CELL AND METHOD FOR PRODUCING THE SAME

#110
20090087698
2009-04-02

Membrane electrode assembly with hydrogenatable material for a fuel cell

#111
20090074956
2009-03-19

INKJET PRINTING OF MATERIALS FOR USE IN FUEL CELLS

#112
20090068530
2009-03-12

Membrane electrode assembly and direct liquid fuel cell

#113
20090061287
2009-03-05

Horizontally graded structures for electrochemical and electronic devices

#114
20090053577
2009-02-26

Membrane electrode assembly and fuel cell using the same

#115
20090032394
2009-02-05

IONIC POLYMER DEVICES AND METHODS OF FABRICATING THE SAME

#116
20090029235
2009-01-29

Mitigation of membrane degradation by multilayer electrode

#117
20090011322
2009-01-08

Catalyst-Coated Membrane, Membrane-Electrode Assembly and Polymer Electrolyte Fuel Cell

#118
20090011315
2009-01-08

Thin-Film Composite and a Glass Ceramic Substrate Used in a Miniaturized Electrochemical Device

#119
20090011314
2009-01-08

Electrode/electrolyte interfaces in solid oxide fuel cells

#120
20080308975
2008-12-18

Electrode-supported solid state electrochemical cell

#121
20080299434
2008-12-04

SOLID OXIDE TYPE FUEL CELL AND MANUFACTURING METHOD THEREOF

#122
20080286632
2008-11-20

Membrane Electrode Assemblies for Polymer Electrolyte Hydrogen and Direct Methanol Fuel Cells and Methods for Their Production

#123
20080268297
2008-10-30

Gas diffusion substrate

#124
20080241641
2008-10-02

Membrane electrode assembly for fuel cell and process for manufacturing the same

#125
20080206616
2008-08-28

CATALYST COATED MEMBRANES AND SPRAYABLE INKS AND PROCESSES FOR FORMING SAME

#126
20080145732
2008-06-19

Proton Exchange Fuel Cell

#127
20080096080
2008-04-24

Anode with remarkable stability under conditions of extreme fuel starvation

#128
20080081229
2008-04-03

Cell materials variation in SOFC stacks to address thermal gradients in all planes

#129
20080076006
2008-03-27

High utilization stack

#130
20080044640
2008-02-21

Air cathode having multilayer structure and manufacture method thereof

#131
20080032181
2008-02-07

Membrane-Electrode Assembly For Fuel Cell

#132
20080016664
2008-01-24

ELECTRODE DESIGN

#133
20080008912
2008-01-10

Compositional and structural gradients for fuel cell electrode materials

#134
20070298310
2007-12-27

Fuel cell

#135
20070298299
2007-12-27

Fuel Cell

#136
20070275291
2007-11-29

NOVEL MEMBRANE ELECTRODE ASSEMBLY AND ITS MANUFACTURING PROCESS

#137
20070269698
2007-11-22

Membrane electrode assembly and its manufacturing method

#138
20070224477
2007-09-27

Fuel Cell

#139
20070207374
2007-09-06

MEMBRANE-ELECTRODE ASSEMBLY FOR FUEL CELL AND FUEL CELL SYSTEM INCLUDING SAME

#140
20070202391
2007-08-30

POROUS CARBON ELECTRODE, IN PARTICULAR FOR A FUEL CELL, AND PROCESS FOR MANUFACTURE THREOF

#141
20070196707
2007-08-23

Fuel cell system and diagnosis system for the fuel cell system

#142
20070184322
2007-08-09

Membrane electrode assembly in solid oxide fuel cells

#143
20070172718
2007-07-26

Structure of cathode electrode for fuel cell

#144
20070166593
2007-07-19

Solid oxide fuel cell

#145
20070160884
2007-07-12

Fuel cell

#146
20070154780
2007-07-05

Electrode structure

#147
20070134543
2007-06-14

Stepped gradient fuel electrode and method for making the same

#148
20070078051
2007-04-05

Method for manufacturing electrode layer for fuel cell

#149
20060247122
2006-11-02

Methods for the deposition of electrocatalyst particles

#150
20060246337
2006-11-02

Fuel cell support structure

#151
20060204831
2006-09-14

Control parameters for optimizing MEA performance

#152
20060148112
2006-07-06

Electrode design

#153
20060141337
2006-06-29

Fuel cell

#154
20060141320
2006-06-29

Fuel cell and method for manufacturing electrolyte membrane for fuel cell

#155
20060099486
2006-05-11

Split architectures for MEA durability

#156
20060014057
2006-01-19

Apparatus and method for controlling kinetic rates for internal reforming of fuel in solid oxide fuel cells

#157
20050266298
2005-12-01

Dry particle based electro-chemical device and methods of making same

#158
20050250002
2005-11-10

Composite catalyst layer, electrode and passive mixing flow field for compressionless fuel cells

#159
20050221140
2005-10-06

Solid oxide fuel cell

#160
20050214610
2005-09-29

Catalyst-coated membrane, membrane-electrode assembly, and polymer electrolyte fuel cell

#161
20050202308
2005-09-15

Polymer electrolyte fuel cell

#162
20050186466
2005-08-25

Solid oxide fuel cell

#163
20050147868
2005-07-07

Fuel cell

#164
20050142433
2005-06-30

Fuel cell and production method thereof

#165
20050112453
2005-05-26

Fuel electrode for solid oxide fuel cell and solid oxide fuel cell using the same

#166
20050095494
2005-05-05

Variable catalyst loading based on flow field geometry

#167
20050058881
2005-03-17

Catalyst layer edge protection for enhanced MEA durability in PEM fuel cells

#168
20050026019
2005-02-03

Doped substrate and method of fabrication

#169
20050008925
2005-01-13

Fuel cell