ClassID:

30207

B01D2239/0631 - CPC Classification

Classification description:

Aspects relating to filtering material for liquid or gaseous fluids; Filter cloth, e.g. knitted, woven non-woven; self-supported material; Arrangement of the fibres in the filtering material Electro-spun

Recent Application in this class:
#1
20260131270
2026-05-14

AIR FILTER FOR HIGH-EFFICIENCY PM2.5 CAPTURE

#2
20260097340
2026-04-09

NON-WOVEN FILTER MEDIA WITH AN ACRYLIC & PP FIBER LAYER AND A NANOFIBER LAYER

#3
20260070308
2026-03-12

USING TITANIUM DIOXIDE NANOFIBERS TO CREATE AIR-CLEANING AND DUST-PROOF WINDOWS

#4
20260042041
2026-02-12

FILTER MEDIA INCLUDING NONWOVEN FIBER WEBS COMPRISING NANOFIBERS, AND RELATED METHODS

#5
20260034486
2026-02-05

TRANSPARENT COMPOSITE NANO-FIBRE BASED MULTI-LAYER TEXTILE

#6
20250303329
2025-10-02

FILTER WITH METAL-ORGANIC FRAMEWORK FOR CMP PROCESSING

#7
20250281876
2025-09-11

DECONTAMINATING MATERIALS AND METHODS OF MAKING AND USING SAME

#8
20250262581
2025-08-21

FILTER AND METHOD FOR MANUFACTURING SAME

#9
20250170509
2025-05-29

FILTER MEDIUM COMPRISING A FINE FIBER LAYER

#10
20250163621
2025-05-22

BIODEGRADABLE AND HYDROPHOBIC POLYLACTIC ACID (PLA ) NON-WOVEN MATERIAL AND PROCESS FOR MANUFACTURING THEREOF

#11
20250161859
2025-05-22

FILTER MEDIA COMPRISING A PRE-FILTER LAYER

#12
20250128195
2025-04-24

A BIODEGRADABLE FILTER ASSEMBLY FOR AN ELECTRICAL APPLIANCE

#13
20250099888
2025-03-27

FILTER MEDIA INCLUDING A WAVED FILTRATION LAYER HAVING A GRADIENT

#14
20250099887
2025-03-27

FILTER MATERIAL COMPRISING A GRADIENT STRUCTURE NONWOVEN BASE LAYER AND A NANOFIBER TOP LAYER

#15
20250065253
2025-02-27

HIGH TRANSMISSION AIR FILTRATION MEDIA AND TRANSPARENT FACE MASK

#16
20250032963
2025-01-30

FILTER MEDIA INCLUDING ADHESIVES AND/OR OLEOPHOBIC PROPERTIES

#17
20250001339
2025-01-02

AIR FILTER MEDIUM, AIR FILTER PACK, AND AIR FILTER UNIT

#18
20240424434
2024-12-26

FILTER MEDIA WITH IRREGULAR STRUCTURE AND/OR REVERSIBLY STRETCHABLE LAYERS

#19
20240408531
2024-12-12

NANOFIBER FILTER AND METHOD FOR MANUFACTURING SAME

#20
20240375034
2024-11-14

Filter media comprising a pre-filter layer

#21
20240335782
2024-10-10

CORRUGATED FILTER MEDIA

#22
20240326017
2024-10-03

FIBER-ENCAPSULATED HYBRID MATERIALS FOR CAPTURE OF CARBON DIOXIDE

#23
20240316483
2024-09-26

SELF-CLEANING FILTER

#24
20240278172
2024-08-22

ELECTROSPUN POLYMERIC NANOFIBER FILTER MATERIAL AND DEVICES

#25
20240229314
2024-07-11

ELECTROSPUN POROUS MEDIA

#26
20240216845
2024-07-04

BIODEGRADABLE COMPOSITE FILTER MEDIA FOR AIR FILTERS AND MANUFACTURING METHOD THEREOF

#27
20240216844
2024-07-04

Composite filtering medium and method for production thereof

#28
20240042367
2024-02-08

Filter media comprising a pre-filter layer

#29
20240001270
2024-01-04

SELF-DECONTAMINATING NANOFIBROUS FILTERS

#30
20230415081
2023-12-28

ARTICLES COMPRISING FILTER MEDIA WITH IRREGULAR STRUCTURE AND/OR REVERSIBLY STRETCHABLE LAYERS

#31
20230390688
2023-12-07

WASHABLE FINE DUST FILTER MODULE USING NANO FIBER

#32
20230383441
2023-11-30

Electrospinning method for fabricating nanofiber air filter with minimized pressure drop

#33
20230375566
2023-11-23

FIBROUS MAT FOR METABOLOME SAMPLING

#34
20230356123
2023-11-09

A MULTI-LAYERED REPLACEABLE FILTER ASSEMBLY AND A MICROFILTER ASSEMBLY IMPLIED WITH BATTERY POWERED SUCTION FAN

#35
20230330585
2023-10-19

HIGH EFFICIENCY FILTER MEDIA

#36
20230311037
2023-10-05

HIGH FILTRATION FILTER WITH DISINFECTION, LOW PRESSURE DROP AND REDUCED CAKE FORMATION

#37
20230292860
2023-09-21

MULTIFUNCTIONAL FILTER MATERIALS

#38
20230285887
2023-09-14

NANOFIBER FILTER AND METHOD FOR MANUFACTURING SAME

#39
20230277967
2023-09-07

AIR FILTER FOR HIGH-EFFICIENCY PM2.5 CAPTURE

#40
20230249010
2023-08-10

MASK AND MANUFACTURING METHOD THEREOF

#41
20230241428
2023-08-03

PVDF FILTERING FACE-PIECE RESPIRATOR AND RECYCLING METHOD

#42
20230233967
2023-07-27

AIR FILTRATION MATERIAL, FILTERS COMPRISING THE SAME AND METHOD FOR MANUFACTURING THE SAME

#43
20230183473
2023-06-15

BIODEGRADABLE AIR FILTERING FILM AND METHOD FOR MANUFACTURING SAME

#44
20230173418
2023-06-08

Nanofilter System for Personal and Medical Protective Equipment with Nano-Facemask, Resp. Nano-Faceshield and Method of Manufacturing Thereof

#45
20230144786
2023-05-11

NOVEL FILTER MATERIAL, FACE MASK COMPRISING THE SAME AND METHOD OF MAKING THE SAME

#46
20230123639
2023-04-20

ULTRAPOROUS NANOFIBER MATS AND USES THEREOF

#47
20230114145
2023-04-13

TRANSPARENT COMPOSITE NANO-FIBRE BASED MULTI-LAYER TEXTILE

#48
20230108099
2023-04-06

BIODEGRADABLE FILTERS

#49
20230105070
2023-04-06

PROTECTIVE MASK, AIR FILTRATION ELEMENT AND AIR TREATMENT ELEMENT

#50
20230100934
2023-03-30

SUB-MICRON FIBROUS MEMBRANE AND METHOD FOR PRODUCING SAME

#51
20230041267
2023-02-09

POROUS BIOCIDAL FILTER

#52
20230026576
2023-01-26

Filter media with irregular structure and/or reversibly stretchable layers

#53
20230025717
2023-01-26

Filter media with irregular structure

#54
20220387916
2022-12-08

Filter media including adhesives and/or oleophobic properties

#55
20220379249
2022-12-01

Filter medium comprising a fine fiber layer

#56
20220339567
2022-10-27

A METHOD FOR PREPARING A COMPOSITE FILTER MEDIUM AND THE COMPOSITE FILTER MEDIUM OBTAINED WITH THIS METHOD

#57
20220274091
2022-09-01

Flow-through aerosol capture device

#58
20220176283
2022-06-09

COMPOSITE STRUCTURE, METHOD OF MANUFACTURING THE SAME, AND FILTER MEDIUM CONTAINING THE COMPOSITE STRUCTURE

#59
20220168705
2022-06-02

FORMULATION AND METHOD FOR PREPARING FIBROUS MATERIAL COMPRISING NANOFIBERS, AND FILTER COMPRISING THE FIBROUS MATERIAL

#60
20220096975
2022-03-31

Nanofiber filter medium for reusable facemask and filtering facepiece respirator

#61
20220072462
2022-03-10

Filter media comprising a pre-filter layer

#62
20220040613
2022-02-10

A METHOD FOR PREPARING A COMPOSITE FILTER MEDIUM AND THE COMPOSITE FILTER MEDIUM OBTAINED WITH THIS METHOD

#63
20220023784
2022-01-27

FILTER MEDIA COMPRISING A POLYETHERSULFONE-BASED FINE FIBER LAYER

#64
20220023783
2022-01-27

Nanofiber air filter medium with high adsorption performance and preparation method

#65
20210387123
2021-12-16

LIQUID FILTER AND MANUFACTURING METHOD FOR LIQUID FILTER

#66
20210370208
2021-12-02

FILTER MEDIA COMPRISING POLYAMIDE FIBERS

#67
20210291094
2021-09-23

Filter media including adhesives

#68
20210268320
2021-09-02

Multi-stage nasal filter

#69
20210236971
2021-08-05

Combined fiber nonwoven fabric, laminate, filtration medium for filter and method thereof

#70
20210229010
2021-07-29

Filter media including adhesives and/or oleophobic properties

#71
20210154606
2021-05-27

EFFICIENT LOW-RESISTANCE MICRO-NANO-FIBER MICROSCOPIC GRADIENT STRUCTURE FILTRATION MATERIAL, AND PREPARATION METHOD THEREFOR

#72
20210129087
2021-05-06

Anti-haze anti-harmful gas air filter membrane as well as preparation method and application thereof

#73
20210121804
2021-04-29

WASHABLE HVAC FILTER AND FILTER MEDIA

#74
20210093989
2021-04-01

Stable filter media including nanofibers

#75
20210079560
2021-03-18

Oleophobic polyamide fine fibers, methods, filter media, and filter elements

#76
20210060476
2021-03-04

NANOMATERIAL INCLUDING NANOFIBERS AND BEADS FOR HEPA AIR FILTER MEDIA

#77
20200391193
2020-12-17

Method for manufacturing photocatalytic filter having porous nanofiber heterostructure

#78
20200368654
2020-11-26

FILTER MEDIA COMPRISING ELASTOMERIC FIBERS

#79
20200354857
2020-11-12

Fabrication of tragacanthin-PVA nanofibrous webs and applications thereof in water-absorbent filters

#80
20200353391
2020-11-12

Method for fabricating a filter containing tragacanthin nanofibers

#81
20200347532
2020-11-05

Melt-Blown Non-Woven Filter Material

#82
20200346148
2020-11-05

Method for producing a filter medium, and a filter medium

#83
20200330913
2020-10-22

Filter media with irregular structure and/or reversibly stretchable layers

#84
20200317903
2020-10-08

Electrospun nanofiber composites for water treatment applications

#85
20200206666
2020-07-02

Filter media including adhesives and/or oleophobic properties

#86
20200179848
2020-06-11

NANOFIBERS COMPRISING NANOPARTICLES

#87
20200173076
2020-06-04

Non-woven fiber membranes

#88
20200139281
2020-05-07

Filter media with irregular structure

#89
20200094539
2020-03-26

Filter medium, manufacturing method therefor, and filter equipment using same

#90
20200038793
2020-02-06

Filter media comprising a pre-filter layer

#91
20190390369
2019-12-26

Electrospinning Polyimide Nanofiber High-Temperature Filter Material

#92
20190388816
2019-12-26

Melt-Blown Non-Woven Filter Material

#93
20190366249
2019-12-05

Filter medium, method for manufacturing same, and filter unit comprising same

#94
20190201831
2019-07-04

Dual density nanofiber media

#95
20190201822
2019-07-04

ELECTROSPUN HIGH TEMPERATURE ELASTOMER MATERIALS FOR WATER FILTER MEDIA

#96
20190168144
2019-06-06

FILTER MEDIUM AND PRODUCTION METHOD FOR FIBROUS STRUCTURE FOR FILTER MEDIUM

#97
20190160404
2019-05-30

Durable nanofiber synthetic filter media

#98
20190070538
2019-03-07

Nanofiber web with controllable solid volume fraction

#99
20190002309
2019-01-03

Surfactant-assisted synthesis of surface-functionalized nanoparticle-polymer electrospun composites

#100
20190001247
2019-01-03

Cartridge filter using nanofiber composite fiber yarn and method for manufacturing same

#101
20180347427
2018-12-06

Nanofiber vent device for urea water tank and method for manufacturing same

#102
20180319146
2018-11-08

Filter apparatus having a housing and filter media inside the housing

#103
20180311599
2018-11-01

Stabilized protein fiber air filter materials and methods

#104
20180272258
2018-09-27

FILTER MEDIA INCLUDING A WAVED FILTRATION LAYER HAVING A GRADIENT

#105
20180243673
2018-08-30

Self-cleaning filter

#106
20180178150
2018-06-28

Method for producing a filter medium, and a filter medium

#107
20180147533
2018-05-31

Adsorptive liquid filter

#108
20180023215
2018-01-25

Adhering nanofibers to polymeric media using a high temperature singe

#109
20170365864
2017-12-21

Porous support having excellent filling characteristics of ion conductor, method for manufacturing the same, and reinforced membrane including the same

#110
20170274315
2017-09-28

Air permeable vent filter, and headlight assembly comprising same

#111
20170203245
2017-07-20

WATER FILTER APPARATUS AND METHOD OF FILTERING FINE PARTICLES FROM WATER

#112
20170197163
2017-07-13

Styrene-acrylonitrile fine fibers, filter media, recirculation filters, and methods

#113
20170173511
2017-06-22

Method for retrovirus removal

#114
20170173509
2017-06-22

Filter structure with enhanced dirt holding capacity

#115
20170151515
2017-06-01

Web comprising fine fiber and reactive, adsorptive or absorptive particulate

#116
20170007952
2017-01-12

Interlaced Filtration Barrier

#117
20170007950
2017-01-12

Interlaced filtration barrier

#118
20160340803
2016-11-24

NANOFIBERS WITH IMPROVED CHEMICAL AND PHYSICAL STABILITY AND WEB CONTAINING NANOFIBERS

#119
20160303498
2016-10-20

Stable filter media including nanofibers

#120
20160288034
2016-10-06

FIBROUS LAMINATE CONTAINING ULTRAFINE FIBERS AND FILTER COMPRISING SAME

#121
20160288033
2016-10-06

Filter Medium and Filter Element with a Filter Medium

#122
20160175752
2016-06-23

Filter media comprising a pre-filter layer

#123
20150298065
2015-10-22

High flux high efficiency nanofiber membranes and methods of production thereof

#124
20150298036
2015-10-22

Apparatus and method using an electric field for creating uniform nanofiber patterns on nonconductive materials to enhance filtration and for embedment of fibers into materials for other applications

#125
20150157971
2015-06-11

Interlaced filtration barrier

#126
20140044756
2014-02-13

Multilayer nanofiber filter

#127
20140033663
2014-02-06

Filter media and filter device comprised thereof

#128
20130118973
2013-05-16

Filter media for a liquid filter using an electrospun nanofiber web, method for manufacturing same, and liquid filter using same

#129
20130059497
2013-03-07

Multilayered Composite

#130
20130053948
2013-02-28

Prosthetic device including electrostatically spun fibrous layer and method for making the same

#131
20130008853
2013-01-10

Web comprising fine fiber and reactive, adsorptive or absorptive particulate

#132
20120272828
2012-11-01

Web comprising fine fiber and reactive, adsorptive or absorptive particulate

#133
20120145632
2012-06-14

ELECTROSPINNING OF POLYAMIDE NANOFIBERS

#134
20120137885
2012-06-07

Nanofibre membrane layer for water and air filtration

#135
20120135234
2012-05-31

BIODEGRADABLE NANOFIBERS AND IMPLEMENTATIONS THEREOF

#136
20120125866
2012-05-24

NANOFIBERS WITH IMPROVED CHEMICAL AND PHYSICAL STABILITY AND WEB CONTAINING NANOFIBERS

#137
20120118152
2012-05-17

Dryer for compressed gas, method for drying compressed gas, and compressor installation provided with a dryer

#138
20120061332
2012-03-15

Method for retrovirus removal

#139
20110309014
2011-12-22

Filtration material for filters, and filter cartridge

#140
20110297609
2011-12-08

Aircraft potable water system

#141
20110293485
2011-12-01

Web comprising fine fiber and reactive, adsorptive or absorptive particulate

#142
20110253620
2011-10-20

Web comprising fine fiber and reactive, adsorptive or absorptive particulate

#143
20110232653
2011-09-29

ANTIMICROBIAL, DUSTPROOF FABRIC AND MASK

#144
20110210081
2011-09-01

FINE FIBER LIQUID PARTICULATE FILTER MEDIA

#145
20110210061
2011-09-01

COMPRESSED NANOFIBER COMPOSITE MEDIA

#146
20110210060
2011-09-01

EXPANDED COMPOSITE FILTER MEDIA INCLUDING NANOFIBER MATRIX AND METHOD

#147
20110210059
2011-09-01

Non-pleated tubular depth filter having fine fiber filtration media

#148
20110198282
2011-08-18

HIGH FLUX HIGH EFFICIENCY NANOFIBER MEMBRANES AND METHODS OF PRODUCTION THEREOF

#149
20110192789
2011-08-11

METAL OR METAL OXIDE DEPOSITED FIBROUS MATERIALS

#150
20110159765
2011-06-30

Sheet of microfiber assembly

#151
20110086415
2011-04-14

Electrospun fiber pre-concentrator

#152
20110031656
2011-02-10

Multilayered composite structure with electrospun layer

#153
20110030885
2011-02-10

Process of making a prosthetic device from electrospun fibers

#154
20110011792
2011-01-20

POLYMER FIBER MATERIAL, METHOD OF PRODUCING THE SAME, AND FILTER FOR FILTERING FLUID

#155
20100307119
2010-12-09

Multilayer nanofiber filter

#156
20100176068
2010-07-15

Web comprising fine fiber and reactive, adsorptive or absorptive particulate

#157
20090247970
2009-10-01

Enclosure ventilation filter and assembly method

#158
20090221047
2009-09-03

Method of converting cellulosic biomass to alcohol using web comprising fine fiber and bioactive particulate

#159
20090019825
2009-01-22

TACKY ALLERGEN TRAP AND FILTER MEDIUM, AND METHOD FOR CONTAINING ALLERGENS

#160
20080307971
2008-12-18

Filter Medium, Process for Producing the Same, Method of Use Thereof, and Filter Unit

#161
20080274312
2008-11-06

Bag house filters and media

#162
20070125703
2007-06-07

Method for providing resistance to biofouling in a porous support

#163
20070125700
2007-06-07

Nanoweb composite material and gelling method for preparing same

#164
17060386
2025-04-29

Automatic sample collector and extractor