ClassID:

213305

H01M4/94 - CPC Classification

Classification description:

Electrodes; Inert electrodes with catalytic activity, e.g. for fuel cells Non-porous diffusion electrodes, e.g. palladium membranes, ion exchange membranes

Recent Application in this class:
#1
20250309301
2025-10-02

Water Forming Reaction Mixtures

#2
20250239637
2025-07-24

UNIFIED ASSEMBLY FOR ELECTROCHEMICAL DEVICE

#3
20250015309
2025-01-09

ELECTROCHEMICAL HYDROGEN-CATALYST POWER SYSTEM

#4
20240429403
2024-12-26

FLOW BATTERY STACK OR SINGLE CELL, MEMBRANE-ELECTRODE ASSEMBLY AND COMPOSITE ELECTRODE STRUCTURE THEREOF

#5
20240405246
2024-12-05

SEALED REDOX BATTERY

#6
20240405245
2024-12-05

SEALED REDOX BATTERY

#7
20240405240
2024-12-05

Processes for Producing Reactant Chemical Substances

#8
20240339643
2024-10-10

ELECTRODE-DECOUPLED REDOX FLOW BATTERY

#9
20240332582
2024-10-03

ELECTRODE STRUCTURE FOR ELECTROCHEMICAL CELL, ELECTROCHEMICAL CELL, AND ELECTROCHEMICAL APPARATUS

#10
20240286090
2024-08-29

ANION EXCHANGE POLYMERS AND ANION EXCHANGE MEMBRANES INCORPORATING SAME

#11
20240247380
2024-07-25

HYDROGEN PRODUCTION SYSTEM USING AMMONIA AND FUEL CELL USING AMMONIA

#12
20240246070
2024-07-25

PIPERIDINIUM-CONTAINING ANION EXCHANGE POLYMERS

#13
20220344695
2022-10-27

Sealed redox battery

#14
20220293991
2022-09-15

Sealed redox battery

#15
20220181663
2022-06-09

Proton conductor and fuel cell

#16
20220149389
2022-05-12

GAS DIFFUSION ELECTRODE AND USE THEREOF

#17
20220072485
2022-03-10

Anion exchange polymers and anion exchange membranes incorporating same

#18
20220021013
2022-01-20

Direct alcohol fuel cell

#19
20220013800
2022-01-13

Electrode-decoupled redox flow battery

#20
20210313606
2021-10-07

H2O-BASED ELECTROCHEMICAL HYDROGEN-CATALYST POWER SYSTEM

#21
20210218034
2021-07-15

Dynamic piezocatalyst system

#22
20210175532
2021-06-10

Sealed redox battery

#23
20210109081
2021-04-15

Massively parallel DNA sequencing apparatus

#24
20210083305
2021-03-18

BATTERY BODY UNIT FOR REDOX FLOW BATTERY, REDOX FLOW BATTERY USING SAME, AND METHOD FOR OPERATING REDOX FLOW BATTERY

#25
20210066724
2021-03-04

Catalyst

#26
20210043957
2021-02-11

Proton ceramics fuel cell and method for production of same

#27
20200350597
2020-11-05

ELECTRODE FOR REDOX FLOW BATTERY, AND REDOX FLOW BATTERY

#28
20200291052
2020-09-17

BIS-PHENANTHROLINE IRON MACROCYCLE COMPLEX FOR OXYGEN REDUCTION REACTION

#29
20200200727
2020-06-25

Apparatus and method for the non-destructive measurement of hydrogen diffusivity

#30
20200179893
2020-06-11

Method and apparatus of preparing catalyst for fuel cell

#31
20200176801
2020-06-04

Flow battery

#32
20200136155
2020-04-30

FUEL CELLS WITH A LAYERED ELECTROLYTE

#33
20200119383
2020-04-16

BIOMATERIAL ELECTROLYTE FOR AN EVERLASTING BATTERY

#34
20190334193
2019-10-31

CURRENT COLLECTOR PLATE, REDOX FLOW CELL, AND REDOX FLOW CELL PRODUCTION METHOD

#35
20190265220
2019-08-29

Apparatus and method for the non-destructive measurement of hydrogen diffusivity

#36
20190221875
2019-07-18

REDOX FLOW BATTERY

#37
20190041378
2019-02-07

Massively parallel DNA sequencing apparatus

#38
20190006695
2019-01-03

METHOD AND SYSTEM FOR EFFICIENTLY OPERATING ELECTROCHEMICAL CELLS

#39
20180371630
2018-12-27

HIGH PRESSURE ELECTROCHEMICAL CELL

#40
20180363154
2018-12-20

ELECTROCHEMICAL CELL AND COMPONENTS THEREOF CAPABLE OF OPERATING AT HIGH VOLTAGE

#41
20180331373
2018-11-15

Bipolar plate and redox flow cell comprising same

#42
20180313806
2018-11-01

Apparatus and method for the non-destructive measurement of hydrogen diffusivity

#43
20180212266
2018-07-26

Redox flow battery

#44
20180130998
2018-05-10

Zinc electrodes for batteries

#45
20170358804
2017-12-14

Separator of fuel cell and fuel cell having the same

#46
20170324255
2017-11-09

Near zero volt storage tolerant electrochemical cells through reversible ion management

#47
20170252707
2017-09-07

Anion exchange polymers and anion exchange membranes incorporating same

#48
20170244127
2017-08-24

IMPACT OF MEMBRANE CHARACTERISTICS ON THE PERFORMANCE AND CYCLING OF THE BR2-H2 REDOX FLOW CELL

#49
20170222249
2017-08-03

Fuel cell assembly and method for operating a fuel cell assembly

#50
20170214105
2017-07-27

Electrochemical cell, battery module including the same, and battery pack including the same

#51
20170069916
2017-03-09

Metal oxide-carbon nanomaterial composite, method of preparing the same, catalyst, method of preparing the same, and catalyst layer for fuel cell electrodes

#52
20170062839
2017-03-02

GAS DIFFUSION ELECTRODE AND USE THEREOF

#53
20170005344
2017-01-05

Bipolar Plate and Layer Structure on the Bipolar Plate

#54
20160268621
2016-09-15

Fuel system using redox flow battery

#55
20160226073
2016-08-04

PtCu and PtNi Electrocatalysts Doped with Iodine

#56
20150180041
2015-06-25

Formulation of an active layer having improved performances

#57
20140315121
2014-10-23

METHOD FOR THE PREPARATION OF CATALYST-COATED MEMBRANES METHOD FOR THE PREPARATION OF CATALYST-COATED MEMBRANES

#58
20140234731
2014-08-21

Metal/air battery with gas separation nanostructure

#59
20140038019
2014-02-06

Bipolar ion exchange membranes for batteries and other electrochemical devices

#60
20130337349
2013-12-19

Metal-air battery and gas impermeable anodic conductive matrix

#61
20130143148
2013-06-06

Fuel cell with an improved electrode

#62
20130108517
2013-05-02

Membrane reactor for treating gases containing tritium

#63
20120273366
2012-11-01

Hydrogen or oxygen electrochemical pumping catalytic membrane reactor and its applications

#64
20120267337
2012-10-25

Ultrathin porous nanoscale membranes, methods of making, and uses thereof

#65
20120128999
2012-05-24

SULFUR-RESISTANT COMPOSITE METAL MEMBRANES

#66
20120121994
2012-05-17

Membrane And Catalyst Composite For Membrane Electrode Assembly

#67
20120088180
2012-04-12

Membrane electrode assembly comprising a hydrogen permeable thin film, solid oxide fuel cell comprising the same and method of preparing the membrane electrode assembly

#68
20100323264
2010-12-23

Fuel system using redox flow battery

#69
20100323255
2010-12-23

FUEL CELL SYSTEM SUITABLE FOR COMPLEX FUELS AND A METHOD OF OPERATION OF THE SAME

#70
20100285393
2010-11-11

Hydrogen-permeable structure, method of manufacturing thereof and fuel cell using the same

#71
20100266929
2010-10-21

CATALYST HAVING A DEHYDROGENATION FUNCTION OR HYDROGENATION FUNCTION, FUEL CELL USING THE CATALYST AND HYDROGEN STORAGE/SUPPLY DEVICE

#72
20100150796
2010-06-17

Fuel reformer including a two layer integrated article

#73
20100092333
2010-04-15

HYDROGEN-PERMEABLE ALLOY, AND HYDROGEN-PERMEABLE FILM AND ITS PRODUCTION METHOD

#74
20100047648
2010-02-25

Hydrogen separation membrane with a carrier, fuel cell and hydrogen separation apparatus having same, and method of manufacturing same

#75
20100021786
2010-01-28

FUEL CELL

#76
20100021628
2010-01-28

Method for manufacturing hydrogen separation membrane fuel cell

#77
20100003572
2010-01-07

FUEL CELL AND MANUFACTURING METHOD OF THE SAME

#78
20090220846
2009-09-03

Proton conductor, and fuel cell and fuel cell system including proton conductor

#79
20090200172
2009-08-13

Method of manufacturing fuel cell

#80
20090162716
2009-06-25

Method of Manufacturing Fuel Cell

#81
20090155657
2009-06-18

Hydrogen Permeable Film, and Fuel Battery Using the Same

#82
20090142643
2009-06-04

Fuel cell with electrolyte strengthening substrate having a penetration portion

#83
20080241681
2008-10-02

Proton conducting electrolyte and electrochemical cell including proton conducting electrolyte

#84
20080160367
2008-07-03

Hydrogen generation device and fuel cell system including same

#85
20080138679
2008-06-12

Hydrogen Generation Device and Fuel Cell System Including Same

#86
20080076007
2008-03-27

Catalyst and a Method for Manufacturing the Same

#87
20080066299
2008-03-20

Manufacturing method of a hydrogen separation membrane-electrolyte membrane assembly and a fuel cell provided with that assembly

#88
20080044706
2008-02-21

Fuel cell production method and fuel cell

#89
20080038567
2008-02-14

Method of making sulfur-resistant composite metal membranes

#90
20070298299
2007-12-27

Fuel Cell

#91
20070248874
2007-10-25

Hydrogen separation membrane and fuel cell, and manufacturing method therefor

#92
20070248872
2007-10-25

Membrane-electrode assembly and fuel cell

#93
20070243450
2007-10-18

Fuel cell

#94
20070224513
2007-09-27

Electrode for cell of energy storage device and method of forming the same

#95
20070224478
2007-09-27

Cathode for fuel cell and process of the same

#96
20070207357
2007-09-06

Electrolyte layer for fuel cell, fuel cell, and method of manufacturing electrolyte layer for fuel cell

#97
20070160884
2007-07-12

Fuel cell

#98
20070128484
2007-06-07

Fuel cell system for preventing hydrogen permeable metal layer degradation

#99
20070099062
2007-05-03

Fuel cell system suitable for complex fuels and a method of operation of the same

#100
20070095658
2007-05-03

Catalytic electrode, cell, system and process for storing hydrogen/deuterium

#101
20070082125
2007-04-12

Fuel cell manufacturing method and fuel cell

#102
20070042252
2007-02-22

Solid state, thin film proton exchange membrane for fuel cells

#103
20060286417
2006-12-21

Fuel cell system

#104
20060278580
2006-12-14

Ultrathin porous nanoscale membranes, methods of making, and uses thereof

#105
20060269814
2006-11-30

Fuel cell membrane and fuel cells including same

#106
20060243655
2006-11-02

Ultrathin nanoscale membranes, methods of making, and uses thereof

#107
20060188737
2006-08-24

Process for preparing palladium alloy composite membranes for use in hydrogen separation, palladium alloy composite membranes and products incorporating or made from the membranes

#108
20060141320
2006-06-29

Fuel cell and method for manufacturing electrolyte membrane for fuel cell

#109
20060088747
2006-04-27

Thin film electrolyte assembly

#110
20060083852
2006-04-20

Fuel cell apparatus and method of manufacture thereof

#111
20060068253
2006-03-30

GAS BARRIER FOR ELECTROCHEMICAL CELLS

#112
20060063062
2006-03-23

Catalyst and a method for manufacturing the same

#113
20060057440
2006-03-16

Fuel cells and methods for generating electricity

#114
20050255370
2005-11-17

Vapor deposited catalysts and their use in fuel cells

#115
20050176576
2005-08-11

Fuel reformer and method for producing the same, electrode for use in electrochemical device, and electrochemical device

#116
15670935
2020-04-14

Proton exchange membrane fuel cells