ClassID:

126856

D21H13/50 - CPC Classification

Classification description:

Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material; Inorganic fibres or flakes; Non-siliceous fibres, e.g. from metal oxides Carbon fibres

Recent Application in this class:
#1
20250333906
2025-10-30

CONDUCTIVE PAPER, PRODUCTION METHOD THEREOF, METALLIC ADHEREND AND PRODUCTION METHOD THEREOF

#2
20250237013
2025-07-24

FORMED FIBER PRODUCT, FIBROUS BINDER, AND APPLICATION THEREOF

#3
20250052007
2025-02-13

ACID-FREE SOLUTION PROCESS FOR STRUCTURALLY INTACT CARBON FIBER PAPER WITH LONG-LASTING HYDROPHILICITY

#4
20250002353
2025-01-02

METHOD OF MANUFACTURING A GRAPHENE/GRAPHEHE OXIDE LAYER AND A GRAPHENE/GRAPHEHE OXIDE-COATED SUPPORT

#5
20240426057
2024-12-26

POROUS CARBON PAPER AND MANUFACTURING METHOD THEREOF

#6
20240186552
2024-06-06

CARBON SHEET, METHOD FOR MANUFACTURING SAME, GAS DIFFUSION ELECTRODE, AND FUEL CELL

#7
20240044081
2024-02-08

Preparation method of double-layer carbon-paper base paper with high uniformity and gradient pores

#8
20230416989
2023-12-28

CARBON FIBER PAPER, FLEXIBLE ROLLABLE CARBON PAPER MADE FROM THE CARBON FIBER BASE PAPER AND THE PREPARATION METHODS AND SYSTEMS THEREOF

#9
20230407570
2023-12-21

ELECTRICALLY CONDUCTIVE SMART PAPERS

#10
20230395815
2023-12-07

Gas diffusion layer for proton exchange membrane fuel cell and preparation method thereof

#11
20220328837
2022-10-13

INTERLAYER MATERIAL FOR LITHIUM-SULFUR BATTERY, AND LITHIUM-SULFUR BATTERY

#12
20220259393
2022-08-18

METHOD FOR MAKING A CARBON FIBRE FROM A PAPER PRODUCT

#13
20220243779
2022-08-04

METHOD FOR PRODUCING WET-RUNNING FRICTION PAPER, AND WET-RUNNING FRICTION PAPER

#14
20220089443
2022-03-24

CARBON NANOTUBE SHEET STRUCTURE AND METHOD FOR ITS MAKING

#15
20220033595
2022-02-03

METHOD FOR PRODUCING HEAT-RESISTANT RESIN COMPOSITE AND HEATRESISTANT RESIN COMPOSITE

#16
20210331926
2021-10-28

PROCESS FOR FORMING SHAPED ARTICLES COMPRISING CARBON NANOTUBES

#17
20210146650
2021-05-20

THERMOPLASTIC SHEETS AND ARTICLES WITH VARIABLE LOFTING CAPACITY

#18
20210115202
2021-04-22

Manufacture of composite dispersion based resin-infused random fiber mat

#19
20210078864
2021-03-18

Graphite materials, and methods for fabricating and use thereof

#20
20210029854
2021-01-28

ELECTROMAGNETIC WAVE ABSORBING SHEET AND METHOD FOR PRODUCING SAME

#21
20210009425
2021-01-14

Method of manufacturing a graphene/graphehe oxide layer and a graphene/graphehe oxide-coated support

#22
20200354955
2020-11-12

Conductive paper for making electroactive surface in construction

#23
20200266450
2020-08-20

Porous electrode substrate and production method therefor

#24
20200262701
2020-08-20

Scalable nanotube fabrics and methods for making same

#25
20200141062
2020-05-07

Method for transferring carbon nanotube array

#26
20200123708
2020-04-23

REINFORCED PAPER, METHOD OF MAKING A REINFORCED PAPER, AND ARTICLE COMPRISING A REINFORCED PAPER

#27
20190247799
2019-08-15

Method and System for Increasing the Thickness of a Carbon Nanotube Sheet Structure

#28
20190245214
2019-08-08

Method for producing roll-type gas diffusion layer having excellent spreading property

#29
20190177918
2019-06-13

Carbon fiber sheet and method for manufacturing carbon fiber sheet

#30
20190148739
2019-05-16

POROUS BASE MATERIAL, POROUS ELECTRODE, CARBON FIBER PAPER, METHOD FOR MANUFACTURING CARBON FIBER PAPER, AND METHOD FOR MANUFACTURING POROUS BASE MATERIAL

#31
20190106842
2019-04-11

Method of producing a fibrous web containing natural and synthetic fibres

#32
20190077667
2019-03-14

High-strength network structured nano-carrier material and preparation method and application thereof

#33
20190047864
2019-02-14

Carbon nanotube sheet structure and method for its making

#34
20180313037
2018-11-01

Dispersant for carbon fibers, carbon fiber dispersion composition, and method for manufacturing carbon fiber sheet

#35
20180301692
2018-10-18

Method of producing an electrode substrate made of carbon fibers

#36
20180291559
2018-10-11

Method for preparing active carbon-based special synthetic paper

#37
20180162086
2018-06-14

HONEYCOMB PAPER

#38
20170362775
2017-12-21

THERMOPLASTIC FIBROUS MATERIALS AND A METHOD OF PRODUCING THE SAME

#39
20170298208
2017-10-19

Ordered wrapping of poly(methyl methacrylate) on single wall carbon nanotubes

#40
20170198437
2017-07-13

RESIN SHEET, ARTICLE, AND METHOD FOR MANUFACTURING RESIN SHEET

#41
20170110736
2017-04-20

Porous electrode substrate, method for manufacturing same, membrane electrode assembly, polymer electrolyte fuel cell, precursor sheet, and fibrillar fibers

#42
20160204443
2016-07-14

Porous electrode substrate, method for manufacturing same, precursor sheet, membrane electrode assembly, and polymer electrolyte fuel cell

#43
20160190547
2016-06-30

Electrode substrate made of carbon fibers and method of producing the electrode substrate

#44
20160177511
2016-06-23

Systems and methods for continuous manufacture of buckypaper materials

#45
20160076201
2016-03-17

Process to manufacture a mixture of p-aramid pulp with chopped fibers, mixture and its use

#46
20150361619
2015-12-17

Method of producing structure for producing casting, and structure such as mold

#47
20150299956
2015-10-22

Dispersion of carbon enhanced reinforcement fibers in aqueous or non-aqueous media

#48
20150292145
2015-10-15

Random mat, shaped product of fiber reinforced composite material, and carbon fiber mat

#49
20150280244
2015-10-01

Porous electrode substrate and process for production thereof, porous electrode substrate precursor sheet, membrane-electrode assembly, and polymer electrolyte fuel cell

#50
20150275434
2015-10-01

Methods of molding non-woven carbon fiber mats and related molded products

#51
20150233021
2015-08-20

Method for production of carbon nanofiber mat or carbon paper

#52
20150086771
2015-03-26

Scalable nanotube fabrics and methods for making same

#53
20140299285
2014-10-09

Pellet comprising aramid pulp and filler material

#54
20140262088
2014-09-18

Methods of molding non-woven carbon fiber mats and related molded products

#55
20140037878
2014-02-06

Fibre matrix and a method of making a fibre matrix

#56
20140011118
2014-01-09

Carbon substrate for gas diffusion layer, gas diffusion layer using the same, and electrode for fuel cell, membrane-electrode assembly and fuel cell comprising the gas diffusion layer

#57
20130323620
2013-12-05

Porous electrode substrate, method for manufacturing same, precursor sheet, membrane electrode assembly, and polymer electrolyte fuel cell

#58
20130302714
2013-11-14

Porous electrode substrate, method for manufacturing same, membrane electrode assembly, polymer electrolyte fuel cell, precursor sheet, and fibrillar fibers

#59
20130273454
2013-10-17

Porous electrode substrate, method for producing the same, membrane electrode assembly, and polymer electrolyte fuel cell

#60
20130264019
2013-10-10

Method for forming an anisotropic conductive paper and a paper thus formed

#61
20130224625
2013-08-29

Porous electrode substrate and process for production thereof, porous electrode substrate precursor sheet, membrane-electrode assembly, and polymer electrolyte fuel cell

#62
20130214442
2013-08-22

Method for production of carbon nanofiber mat or carbon paper

#63
20120234479
2012-09-20

COMPOSITE COATING MATERIAL AND THE PRODUCTION METHOD OF THE SAME

#64
20120231157
2012-09-13

Method and device for producing carbon paper

#65
20120216973
2012-08-30

Conductive webs and process for making same

#66
20120156466
2012-06-21

Fibre matrix and a method of making a fibre matrix

#67
20120132843
2012-05-31

USE OF COMPOSITE MATERIALS BASED ON CARBON NANOTUBES AS THICKENING AGENTS FOR AQUEOUS SOLUTIONS

#68
20120115063
2012-05-10

POROUS ELECTRODE SUBSTRATE AND METHOD FOR PRODUCING THE SAME

#69
20120100456
2012-04-26

Porous electrode substrate and method for producing the same

#70
20120055641
2012-03-08

Conductive webs

#71
20120034415
2012-02-09

Carbon fiber structure and method for manufacturing the same

#72
20110306706
2011-12-15

Semiconductor manufacture component

#73
20110300347
2011-12-08

Fabrication of Patterned Nanofibers

#74
20110300031
2011-12-08

Manufacturing carbon nanotube paper

#75
20110294036
2011-12-01

Porous electrode substrate, method for producing the same, membrane electrode assembly, and polymer electrolyte fuel cell

#76
20110281080
2011-11-17

Folded Core Based on Carbon Fiber Paper and Articles Made from Same

#77
20110281063
2011-11-17

HONEYCOMB CORE BASED ON CARBON FIBER PAPER AND ARTICLES MADE FROM SAME

#78
20110256374
2011-10-20

COMPOSITE ARTICLE MADE BY A PROCESS

#79
20110256336
2011-10-20

COMPOSITE CARBON AND MANUFACTURING METHOD THEREFOR

#80
20110253330
2011-10-20

Fire and smoke retardant composite materials

#81
20110220393
2011-09-15

Non-woven fibrous materials and electrodes therefrom

#82
20110123790
2011-05-26

Method for Functionalization of Nanoscale Fiber Films

#83
20110003927
2011-01-06

Composite with low content of metal

#84
20110003140
2011-01-06

ORIENTED COMPOSITE

#85
20110003132
2011-01-06

Composite article made by a process

#86
20110001082
2011-01-06

Semiconductor manufacture component

#87
20110000617
2011-01-06

PROCESS FOR MAKING A COMPOSITE

#88
20100324656
2010-12-23

Carbon Composite Materials and Methods of Manufacturing Same

#89
20100206504
2010-08-19

SHEET-LIKE ARTICLE AND METHOD FOR MAKING THE SAME

#90
20100206502
2010-08-19

Electroconductive aramid paper and tape made therefrom

#91
20100155006
2010-06-24

Conductive webs and process for making same

#92
20100104849
2010-04-29

Carbon composite materials and methods of manufacturing same

#93
20100055023
2010-03-04

Manufacturing carbon nanotube paper

#94
20100035126
2010-02-11

Electrode substrate for electrochemical cell from carbon and cross-linkable resin fibers

#95
20100028639
2010-02-04

Method for functionalization of nanoscale fiber films

#96
20090306276
2009-12-10

USE OF COMPOSITE MATERIALS BASED ON CARBON NANOTUBES AS THICKENING AGENTS FOR AQUEOUS SOLUTIONS

#97
20090258136
2009-10-15

COMPOSITE COATING MATERIAL AND THE PRODUCTION METHOD OF THE SAME

#98
20090068553
2009-03-12

SILICON MODIFIED NANOFIBER PAPER AS AN ANODE MATERIAL FOR A LITHIUM SECONDARY BATTERY

#99
20090061193
2009-03-05

CARBON FIBER COMPOSITE SHEET, USE THEREOF AS A HEAT CONDUCTOR AND PITCH-BASED CARBON FIBER WEB SHEET FOR USE IN THE SAME

#100
20090036015
2009-02-05

Conductive webs

#101
20090036012
2009-02-05

Conductive webs

#102
20080318043
2008-12-25

Carbon fibers from kraft softwood lignin

#103
20080026180
2008-01-31

Impregnated inorganic paper and method for manufacturing the impregnated inorganic paper

#104
20080021134
2008-01-24

Hot-press cushion material and manufacturing method of the same

#105
20070269363
2007-11-22

Water dispersible carbon fiber and water dispersible chopped carbon fiber

#106
20070218346
2007-09-20

Acrylic fiber bonded carbon fiber paper as gas diffusion media for fuel cell

#107
20070196628
2007-08-23

Site coating material and the production method of the same

#108
20070178310
2007-08-02

Non-woven fibrous materials and electrodes therefrom

#109
20070166524
2007-07-19

Porous carbon electrode substrate and its production method and carbon fiber paper

#110
20070154639
2007-07-05

Coated articles and methods of manufacture thereof

#111
20070123132
2007-05-31

Nonwoven mat, method for production thereof and fibre composite

#112
20070009730
2007-01-11

Wet-laid friction material, system and method

#113
20060266486
2006-11-30

Electroconductive aramid paper

#114
20060214320
2006-09-28

Carbon fiber paper construction and manufacturing process

#115
20060180798
2006-08-17

Porous carbon base material, method for preparation thereof, gas-diffusing material film-electrode jointed article, and fuel cell

#116
20060111007
2006-05-25

Nonwoven support based on activated carbon fibres, and use

#117
20060051574
2006-03-09

Fiber having increased filament separation and method of making same

#118
20050233080
2005-10-20

Preparation of patterned diffusion media

#119
20050150620
2005-07-14

Carbon fiber paper and porous carbon electrode substrate for fuel cell therefrom

#120
20050100498
2005-05-12

Porous carbon electrode substrate and its production method and carbon fiber paper

#121
20050011827
2005-01-20

Carbon or activated carbon nanofibers

#122
19263977
2026-02-10

Process for producing fiber-reinforced bio-composites incorporating agricultural waste fibers, bio-based binders, and carbon nanomaterials

#123
19004327
2025-05-20

Conductive carbon paper and preparation method and use thereof

#124
18936016
2025-08-19

Bio-composite material integrating natural fibers with bio-binders and a process for its preparation

#125
16383356
2020-06-23

Bio buckypaper synthesized with fish scales