ClassID:

30203

B01D2239/0613 - 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 Woven

Recent Application in this class:
#1
20260102548
2026-04-16

HEMOFILTRATION FILTER AND HEMOFILTRATION FILTER MEMBER

#2
20260083991
2026-03-26

ACTIVE FORCE ELECTRIC FIELD ANTI-PATHOGENIC FABRIC AND ASSOCIATED METHOD OF FABRICATION

#3
20260070308
2026-03-12

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

#4
20260048352
2026-02-19

Zeolite and Interferon Coated Disposable Particulate Respirator and Air Filtration Media

#5
20260001017
2026-01-01

RESIN COMPOSITION FOR ANTIBACTERIAL FILTER, METHOD FOR PREPARING SAME, AND ANTIBACTERIAL FILTER USING SAME

#6
20260001014
2026-01-01

SYNTHETIC MONOFILAMENT OPEN-MESH FILTER FABRIC WITH ASYMMETRIC CONSTRUCTION FOR LIQUID/SOLID FILTRATION HAVING LOW LOSS OF LOAD AND FACILITATED REGENERATION CAPACITY

#7
20250262581
2025-08-21

FILTER AND METHOD FOR MANUFACTURING SAME

#8
20250242567
2025-07-31

INTERNALLY REINFORCED AEROGEL AND USES THEREOF

#9
20250135386
2025-05-01

PROCESS FOR ERADICATING/REDUCING CORONAVIRUS AND OTHER SMALL PATHOGENS IN THE INDOORS AIR

#10
20250121310
2025-04-17

Compound Air Filter

#11
20240408531
2024-12-12

NANOFIBER FILTER AND METHOD FOR MANUFACTURING SAME

#12
20240399703
2024-12-05

INTERNALLY REINFORCED AEROGEL AND USES THEREOF

#13
20240342636
2024-10-17

NEEDLE-PUNCHED FILTRATION COMPOSITE AND METHOD OF MAKING SAME

#14
20240198144
2024-06-20

BREATHING HALF MASK

#15
20240139655
2024-05-02

CATCH BASIN INSERT STORMWATER FILTERING APPARATUS HAVING A PLANAR FRAME AND GEOTEXTILE FABRIC BASKET SUPPORTED THEREBY FOR DEBRIS AND TRASH CAPTURE

#16
20240066455
2024-02-29

FILTRATION MEDIA, FILTER PACKS, AND FILTER ELEMENTS WITH PROTRUSIONS

#17
20240042252
2024-02-08

Personal protective equipment face coverings with inherently ionic material

#18
20230337772
2023-10-26

METHOD AND TEXTILE USED FOR COLLECTING MICROPLASTICS FROM WATER

#19
20230271036
2023-08-31

Fiber Material Composite Having a Region that Neutralizes Reactive Oxygen Species

#20
20230173215
2023-06-08

MEDICAL AIRWAY DEVICE

#21
20230086347
2023-03-23

REUSABLE RESPIRATION FILTERING MASK USING A FLUID FILTER WITH PERSISTENT ANTI-MICROBIAL PROPERTIES AND FLUID FILTER WITH PERSISTENT ANTI-MICROBIAL PROPERTIES.

#22
20230074586
2023-03-09

Filter Assembly and Container for Collecting a Body Fluid Containing the Same

#23
20220347611
2022-11-03

HIGH PARTICLE CAPTURE MOISTURE ABSORBING FABRIC

#24
20220297039
2022-09-22

Surface-enhanced copper filter for air purification and system and method for using

#25
20220290330
2022-09-15

ANTIMICROBIAL ADDITIVE IN WOVEN POLYPROPYLENE FABRICS

#26
20220233989
2022-07-28

Flame trap filter

#27
20220220599
2022-07-14

Screen Cloth with Increased Wear Resistance and Method for Increasing the Wear Resistance of a Screen Cloth

#28
20220152534
2022-05-19

Oil slurry filter, oil slurry filter unit and oil slurry filter system containing the same, and oil slurry filtering process

#29
20220143951
2022-05-12

Geomaterial web with biological degradation properties

#30
20220134267
2022-05-05

Reusable exoskeleton frame with U-shaped locking members and eco-friendly air filter element

#31
20220080701
2022-03-17

BIODEGRADABLE FABRICS MADE FROM POLYLACTIC ACID (PLA) FIBERS AND/OR YARNS AND METHODS FOR MAKING THE SAME

#32
20220063240
2022-03-03

Internally reinforced aerogel and uses thereof

#33
20220040613
2022-02-10

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

#34
20210370207
2021-12-02

EM filter for EGR cooler

#35
20210354069
2021-11-18

Air filter assembly with a permeable baffle

#36
20210353981
2021-11-18

WASHABLE HIGH EFFICIENCY RESPIRATOR MASK

#37
20210331107
2021-10-28

FILTRATION ARTICLE FOR PERSONAL PROTECTIVE EQUIPMENT

#38
20210321696
2021-10-21

COVID MASK

#39
20210316165
2021-10-14

FACE MASK

#40
20210308605
2021-10-07

SOLID-LIQUID SEPARATION DEVICE AND FILTRATION DEVICE

#41
20210236972
2021-08-05

FILTER MEDIUM COMPRISING A REINFORCED NON-WOVEN FABRIC

#42
20210213376
2021-07-15

Storm water pretreatment chamber

#43
20210187429
2021-06-24

Filter bags comprising a porous membrane

#44
20210170310
2021-06-10

Filter Assembly Employing Cloth Filter Layer for Use in Self-Cleaning Filter

#45
20210154610
2021-05-27

COPPER MICROBICIDAL FILTER

#46
20210069622
2021-03-11

Eco-friendly air filter element having fixation slits and reusable exoskeleton frame

#47
20210060476
2021-03-04

NANOMATERIAL INCLUDING NANOFIBERS AND BEADS FOR HEPA AIR FILTER MEDIA

#48
20210008601
2021-01-14

Washing apparatus for 3D-printed articles

#49
20210008475
2021-01-14

FILTER FOR GAS GENERATOR AND GAS GENERATOR

#50
20200324234
2020-10-15

POLYPHENYLENE SULFIDE SHORT FIBER, FIBROUS STRUCTURE, FILTER FELT, AND BAG FILTER

#51
20200316511
2020-10-08

Compound air filter and method of removal of contaminants

#52
20200269181
2020-08-27

Filter bags comprising a porous membrane

#53
20200269180
2020-08-27

FILTER BAGS COMPRISING A POROUS MEMBRANE

#54
20200268071
2020-08-27

Rapidly Deployable Face Mask

#55
20200164330
2020-05-28

Internally reinforced aerogel and uses thereof

#56
20200155991
2020-05-21

Drainage medium for gas filter

#57
20200122068
2020-04-23

Fine fiber media layer

#58
20200030728
2020-01-30

WOVEN GEOTEXTILE FILTRATION FABRICS INCLUDING CORE-SHEATH SPUN YARNS

#59
20190290943
2019-09-26

BREATHING HALF MASK

#60
20190255471
2019-08-22

THREE DIMENSIONAL FILTER MEDIA FOR EXTENDED LIFE FILTER

#61
20190184432
2019-06-20

Washing apparatus for 3D-printed articles

#62
20190076764
2019-03-14

Filter element

#63
20190070539
2019-03-07

Filter element

#64
20180345190
2018-12-06

Catalytic filter material

#65
20180290118
2018-10-11

Internally reinforced aerogel and uses thereof

#66
20180147533
2018-05-31

Adsorptive liquid filter

#67
20180140982
2018-05-24

Three dimensional filter media for extended life filter

#68
20180056226
2018-03-01

Filtration media, filter packs, and filter elements with protrusions

#69
20170368488
2017-12-28

Compound air filter and method of removing airborne molecular contaminants and volatile organic compounds therefrom

#70
20170362748
2017-12-21

BELT EDGE

#71
20170354907
2017-12-14

Woven geotextile filtration fabrics including core-sheath spun yarns

#72
20170319993
2017-11-09

Fine fiber media layer

#73
20170211208
2017-07-27

Process for fabric of continuous graphitic fiber yarns

#74
20170210643
2017-07-27

Oil-water separation apparatus and drainage system

#75
20170036151
2017-02-09

Recirculation filter for an electronics enclosure

#76
20170028318
2017-02-02

TOWER PRESS BELT

#77
20160363240
2016-12-15

VACUUM VALVE

#78
20140196420
2014-07-17

Fine fiber media layer

#79
20140061139
2014-03-06

Nano-filter and method of forming same, and method of filtration

#80
20130001154
2013-01-03

Fine fiber media layer

#81
20120298319
2012-11-29

Method for producing cellulose-fiber flat structure

#82
20120217194
2012-08-30

Porous Pavement for Water Quality and Quantity Management

#83
20120205044
2012-08-16

Method for forming a filter mat

#84
20120204527
2012-08-16

Fine fiber media layer

#85
20120145650
2012-06-14

Nano-filter and method of forming same, and method of filtration

#86
20120067220
2012-03-22

Filtration media and applications thereof

#87
20110309036
2011-12-22

Filter

#88
20110309014
2011-12-22

Filtration material for filters, and filter cartridge

#89
20110262682
2011-10-27

KNITTED GEOTEXTILE, AND GEOTEXTILE TUBE CONSTRUCTED THEREOF

#90
20110259796
2011-10-27

Apparatus and method for removing contaminants from industrial fluids

#91
20110232653
2011-09-29

ANTIMICROBIAL, DUSTPROOF FABRIC AND MASK

#92
20110192789
2011-08-11

METAL OR METAL OXIDE DEPOSITED FIBROUS MATERIALS

#93
20110168622
2011-07-14

High Efficiency, High Capacity Filter Media

#94
20110155661
2011-06-30

Water filter materials and water filters containing a mixture of microporous and mesoporous carbon particles

#95
20110146493
2011-06-23

FILTER BAG AND LAMINATED FILTER MEDIA

#96
20110132195
2011-06-09

Method for manufacturing electrostatic non-woven intake filter and electrostatic non-woven intake filter using the same

#97
20110130080
2011-06-02

FLEXIBLE, FLAT SUBSTRATE WITH AN ABRASIVE SURFACE

#98
20110067369
2011-03-24

Fine fiber media layer

#99
20110031191
2011-02-10

Filter material for removing aggregates and method of filtering blood product

#100
20110011044
2011-01-20

BAG FILTER COMPRISING FILTER FELT OF META-ARAMID AND PARA-ARAMID STAPLE FIBER

#101
20100212071
2010-08-26

Adsorption filter material, particularly for producing ABC protective clothing having improved wearing physiology

#102
20100206803
2010-08-19

Multi-layer, fluid transmissive fiber structures containing nanofibers and a method of manufacturing such structures

#103
20100202243
2010-08-12

Screw machine having a vacuum housing insert

#104
20100178507
2010-07-15

Polyamide Fine Fibers

#105
20100122515
2010-05-20

POISON-FILTER MATERIAL AND PRODUCTION METHOD THEREOF

#106
20100095846
2010-04-22

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

#107
20100064645
2010-03-18

Fine fiber media layer

#108
20100040861
2010-02-18

Ordered Mesoporous Free-Standing Carbon Films And Form Factors

#109
20100024643
2010-02-04

COATING PROCESS AND COATED PRODUCT

#110
20090308800
2009-12-17

Water filter materials and water filters containing a mixture of microporous and mesoporous carbon particles

#111
20090283480
2009-11-19

POROUS MATERIAL WITH A NONOPOROUS COATING

#112
20090277836
2009-11-12

Filter for Oil-Water Separation and Device for Oil-Water Separation

#113
20090238646
2009-09-24

Method of constructing a filtering pavement surface

#114
20090223411
2009-09-10

ORGANOSILANE-NONIONIC-WATER STABLE QUATERNARY AMMONIUM COMPOSITIONS AND METHODS

#115
20090218291
2009-09-03

Methods for treating water

#116
20090194423
2009-08-06

Method of making a filter material including activated carbon particles having carbon nanofilaments

#117
20090019825
2009-01-22

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

#118
20090008323
2009-01-08

Water filter materials and water filters containing a mixture of microporous and mesoporous carbon particles

#119
20080274312
2008-11-06

Bag house filters and media

#120
20080124505
2008-05-29

Filter Grid Cover

#121
20080110822
2008-05-15

Fine fiber media layer

#122
20080023394
2008-01-31

Medical Filter Material, and Extracorporeal Circulation Column and Blood Filter Utilizing the Filter Material

#123
20080023383
2008-01-31

Clarification and sorptive-filtration system for the capture of constituents and particulate matter in liquids and gases

#124
20070271891
2007-11-29

Polymer, polymer microfiber, polymer nanofiber and applications including filter structures

#125
20070271883
2007-11-29

Bag house filter with fine fiber and spun bonded media

#126
20070240576
2007-10-18

Adsorptive filtering material with integrated particle-and/or aerosol-filtering function and use thereof

#127
20070190880
2007-08-16

Porous substrates, articles, systems and compositions comprising nanofibers and methods of their use and production

#128
20070175195
2007-08-02

Tacky allergen trap and filter medium, and method for containing allergens

#129
20070080103
2007-04-12

Water filter incorporating activated carbon particles with surface-grown carbon nanofilaments

#130
20070065658
2007-03-22

Functional textile material provided with microcapsules containing an active ingredient and use thereof

#131
20070012007
2007-01-18

Polymer, polymer microfiber, polymer nanofiber and applications including filter structures

#132
20070004301
2007-01-04

Textile composite material comprising activated carbon fibres and production thereof

#133
20060172639
2006-08-03

Filter medium

#134
20060150600
2006-07-13

Plate-shaped filter element

#135
20060093740
2006-05-04

Method and device for manufacturing nanofilter media

#136
20060032807
2006-02-16

Clarification and sorptive-filtration system for the capture of constituents and particulate matter in liquids and gases

#137
20050279696
2005-12-22

Water filter materials and water filters containing a mixture of microporous and mesoporous carbon particles

#138
20050098495
2005-05-12

Purification materials and method of filtering using the same

#139
20050085144
2005-04-21

Durable charged particle coatings and materials

#140
20050061728
2005-03-24

Salt-tolerant, water absorbing filter

#141
18744790
2025-12-23

Active force electric field anti-pathogenic fabric and methods of charging and deactivating pathogen particles

#142
18385829
2024-09-17

Contaminant resistant product packaging

#143
17515168
2026-06-02

Brewing system for liquids such as coffee

#144
17301954
2024-06-18

Active force electric field anti-pathogenic fabric and methods of charging and deactivating pathogen particles

#145
17229757
2026-06-02

Non-passive anti-viral and nanofilter based respirators

#146
16845227
2020-10-20

Woven personal respirator mask and methods of making same