ClassID:

30190

B01D2239/0428 - CPC Classification

Classification description:

Aspects relating to filtering material for liquid or gaseous fluids; Additives and treatments of the filtering material; Surface modifiers, e.g. comprising ion exchange groups Rendering the filter material hydrophobic

Recent Application in this class:
#1
20260042043
2026-02-12

HYDROPHOBIC FILTER MEDIUM

#2
20250381505
2025-12-18

EAR-WEARABLE ELECTRONIC DEVICE INCLUDING FILTER

#3
20250345772
2025-11-13

EROSION AND SEDIMENT AND POLLUTION CONTROL PRODUCTS USING RICE HULLS

#4
20250296021
2025-09-25

FILTER MEDIA COMPRISING WATER-REPELLENT ADDITIVES AND/OR FIBRILLATED FIBERS

#5
20250249386
2025-08-07

FILTER MEDIUM FOR HIGH PERFORMANCE AIR FILTER, AND METHOD FOR MANUFACTURING SAME

#6
20250229203
2025-07-17

AIR-FILTER FILTER MATERIAL AND METHOD FOR PRODUCING FILTER MATERIAL

#7
20250222379
2025-07-10

COALESCER FILTER MEDIA

#8
20250222377
2025-07-10

FILTER INSERT AND SAMPLE VIAL USING THE SAME

#9
20250186973
2025-06-12

FILTER MATERIAL AND MANUFACTURING METHOD THEREOF

#10
20250163651
2025-05-22

METHOD FOR PRODUCING A FILTERING MATERIAL

#11
20250163621
2025-05-22

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

#12
20250128195
2025-04-24

A BIODEGRADABLE FILTER ASSEMBLY FOR AN ELECTRICAL APPLIANCE

#13
20250057167
2025-02-20

FACE MASK, COMPOSITES, IRON-IRON OXIDE COMPOSITIONS AND METHODS OF MANUFACTURE AND USE THEREOF

#14
20250001332
2025-01-02

DUAL STAGE ADVANCED FUEL WATER SEPARATOR

#15
20240424477
2024-12-26

SYSTEM AND DEVICES FOR REMOVAL OF CONTAMINATES

#16
20240424435
2024-12-26

FILTER MEDIA AND ELEMENTS

#17
20240342636
2024-10-17

NEEDLE-PUNCHED FILTRATION COMPOSITE AND METHOD OF MAKING SAME

#18
20240326017
2024-10-03

FIBER-ENCAPSULATED HYBRID MATERIALS FOR CAPTURE OF CARBON DIOXIDE

#19
20240299870
2024-09-12

SEAMLESS FILTRATION MEDIA AND METHODS OF USE

#20
20240252962
2024-08-01

Filter Apparatus

#21
20240175214
2024-05-30

FILTER MATERIAL FOR FOOD PACKAGING

#22
20240173658
2024-05-30

HYDROCARBON FLUID-WATER SEPARATION

#23
20240156188
2024-05-16

FILTRATION GARMENTS

#24
20240082609
2024-03-14

FILTRATION ELEMENT AND USES THEREOF

#25
20240066439
2024-02-29

Method of reducing the concentration of hydrogen sulfide in a gas stream

#26
20240033710
2024-02-01

Method of manufacturing erosion and sediment and pollution control products using rice hulls

#27
20230405497
2023-12-21

Method and apparatus for producing a filter device

#28
20230375566
2023-11-23

FIBROUS MAT FOR METABOLOME SAMPLING

#29
20230292826
2023-09-21

Personal Smoke Filter Device comprising a Pre-Filter

#30
20230277966
2023-09-07

TUBULAR KNITTED GEOTEXTILES IMPLEMENTING HYDROPHOBIC CELLULOSE BASED THREADS, METHODS OF MAKING THE SAME, AND EROSION SEDIMENT AND POLLUTION CONTROL PRODUCTS MADE FROM THE SAME

#31
20230271036
2023-08-31

Fiber Material Composite Having a Region that Neutralizes Reactive Oxygen Species

#32
20230226472
2023-07-20

Filter Media, Filter and Filtration Machine

#33
20230226469
2023-07-20

Filter insert and sample vial using the same

#34
20230173418
2023-06-08

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

#35
20230158343
2023-05-25

FILTERS FOR VIRUS FILTRATION AND INACTIVATION AND MASK ASSEMBLIES CONTAINING THE SAME

#36
20230144786
2023-05-11

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

#37
20230140733
2023-05-04

WATER- AND OIL-REPELLENT AGENT COMPOSITION, METHOD FOR PRODUCING SAME, AND ARTICLE

#38
20230112349
2023-04-13

Air filtration material, device for decontaminating air by filtration and manufacturing method.

#39
20230105070
2023-04-06

PROTECTIVE MASK, AIR FILTRATION ELEMENT AND AIR TREATMENT ELEMENT

#40
20230053562
2023-02-23

HYDROPHOBIC MEDIA FOR THE COLLECTION OF MINERAL PARTICLES IN AQUEOUS SYSTEMS

#41
20220347611
2022-11-03

HIGH PARTICLE CAPTURE MOISTURE ABSORBING FABRIC

#42
20220339567
2022-10-27

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

#43
20220339471
2022-10-27

MULTI-LAYER FILTRATION SYSTEM AND FILTER UNIT COMPRISING SAME

#44
20220249997
2022-08-11

SURFACE MODIFIED FILTER MEDIA

#45
20220243354
2022-08-04

METHOD FOR CLEANING ELECTROPHORETIC COATING BATHS, AND DEVICE THEREFOR

#46
20220233620
2022-07-28

METHODS AND RELATED SYSTEMS FOR EXTRACTING ONE OR MORE CHEMICAL COMPOUNDS FROM CANNABIS PLANT MATERIAL

#47
20220212132
2022-07-07

Filter media and elements

#48
20220205645
2022-06-30

HYDROPHOBIC FILTER IN OVEN AIR OULET

#49
20220203292
2022-06-30

System and method for carbon dioxide capture through membrane conduits

#50
20220161171
2022-05-26

FILTER MEDIA COMPRISING FLUORINATED AND NON-FLUORINATED WATER REPELLENT ADDITIVES

#51
20220161169
2022-05-26

FILTER MEDIA COMPRISING NON-FLUORINATED WATER REPELLENT ADDITIVES

#52
20220152536
2022-05-19

Hydrocarbon fluid-water separation

#53
20220105454
2022-04-07

BLOOD PURIFIER

#54
20220095626
2022-03-31

Multilayer Copper-based Zeolite Fiber Medical Material, Protective Equipment and Manufacturing Method

#55
20220040613
2022-02-10

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

#56
20220015433
2022-01-20

AEROSOL GENERATING SYSTEM AND CARTRIDGE WITH LEAKAGE PROTECTION

#57
20220001048
2022-01-06

MATERIALS AND METHODS FOR PHOTOTHERMALLY SELF-DISINFECTING RESPIRATORS

#58
20210370208
2021-12-02

FILTER MEDIA COMPRISING POLYAMIDE FIBERS

#59
20210337747
2021-11-04

Kachina Aholi

#60
20210331107
2021-10-28

FILTRATION ARTICLE FOR PERSONAL PROTECTIVE EQUIPMENT

#61
20210252207
2021-08-19

Virus-collecting filter for medical aspirator system

#62
20210129110
2021-05-06

POLYCATIONIC MICROFIBERS AND METHODS OF USING THE SAME

#63
20210121804
2021-04-29

WASHABLE HVAC FILTER AND FILTER MEDIA

#64
20210093989
2021-04-01

Stable filter media including nanofibers

#65
20210079560
2021-03-18

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

#66
20210008478
2021-01-14

Method for fluorinating a filter for a pipette tip, pipette tip, associated production method and pipette

#67
20200398187
2020-12-24

Depth filters for disposable biotechnological processes

#68
20200368109
2020-11-26

Media filtration device

#69
20200338484
2020-10-29

Dust collection filter target-coated with liquid film

#70
20200316532
2020-10-08

FILTER MEDIA

#71
20200215459
2020-07-09

Phase separator device for hydrocarbon-contaminated aquifers

#72
20200208092
2020-07-02

Filter for mammalian cell culture perfusion and clarification with hydrophobic hollow fiber

#73
20200189932
2020-06-18

Apparatus and method for filtering water

#74
20200122068
2020-04-23

Fine fiber media layer

#75
20200086236
2020-03-19

High bulk coalescing filter media and use thereof

#76
20200009488
2020-01-09

Surface modified filter media

#77
20190336897
2019-11-07

Filter media and elements

#78
20190336891
2019-11-07

Filter insert and sample vial using the same

#79
20190336888
2019-11-07

SURFACE MODIFIED FILTER MEDIA

#80
20190329172
2019-10-31

Sheet material and filter element with hydrophobic separating layer, use thereof and process for production of same

#81
20190314745
2019-10-17

Hydrocarbon fluid-water separation

#82
20190143254
2019-05-16

Method for preparation and activation of super-hydrophobic electret fiber material for cleaning PM2.5

#83
20190030539
2019-01-31

Method and device for separating immiscible liquids to effectively isolate at least one of the liquids

#84
20190022565
2019-01-24

Compact gas-liquid filtration cyclone separation unit

#85
20180345173
2018-12-06

Depth filters for disposable biotechnological processes

#86
20180272261
2018-09-27

FILTER MEDIUM

#87
20180178144
2018-06-28

Material used for rapid separation of oil and water and preparation method and application thereof

#88
20180078886
2018-03-22

Process of separating blood plasma/serum from whole blood

#89
20180050293
2018-02-22

Hydrocarbon fluid-water separation

#90
20170368382
2017-12-28

FUNCTIONAL PROTECTIVE MATERIAL WITH A REACTIVELY FINISHED MEMBRANE AND PROTECTIVE CLOTHING PRODUCED THEREWITH

#91
20170319993
2017-11-09

Fine fiber media layer

#92
20170252686
2017-09-07

Final separator

#93
20170239601
2017-08-24

Stretchable laminated filter material and protective article

#94
20170218895
2017-08-03

A FILTER STRUCTURE FOR FUEL, A CARTRIDGE AND A FILTER GROUP

#95
20160303498
2016-10-20

Stable filter media including nanofibers

#96
20160296856
2016-10-13

High bulk coalescing filter media and use thereof

#97
20160263509
2016-09-15

Coalescence filter

#98
20160220927
2016-08-04

Filtration media fiber structure and method of making same

#99
20160136554
2016-05-19

Surface modified filter media

#100
20160129381
2016-05-12

Filter media and elements

#101
20160061158
2016-03-03

Filter water management using hydrophilic material

#102
20160030868
2016-02-04

PERIPHERALLY ENRICHED FIBROUS MEDIA AND METHOD OF MAKING

#103
20150328565
2015-11-19

Surface modified filter media

#104
20150182878
2015-07-02

Coalescence filter and method for purifying a fluid

#105
20150174517
2015-06-25

Water-proof air-permeable filter and use of the same

#106
20150140333
2015-05-21

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

#107
20140366732
2014-12-18

Filter media and elements

#108
20140260990
2014-09-18

Filtration media fiber structure and method of making same

#109
20140196420
2014-07-17

Fine fiber media layer

#110
20140190352
2014-07-10

Liquid collecting permeable structures

#111
20140047933
2014-02-20

Uses of hydrophobic aggregates and methods for performing those uses

#112
20140044756
2014-02-13

Multilayer nanofiber filter

#113
20130074691
2013-03-28

Water-proof air-permeable filter and use of the same

#114
20130068686
2013-03-21

Filtering machine

#115
20130020240
2013-01-24

Device and implementation for filtering oil from water in an appliance

#116
20130012689
2013-01-10

Depth Filters For Disposable Biotechnological Processes

#117
20130001154
2013-01-03

Fine fiber media layer

#118
20120204527
2012-08-16

Fine fiber media layer

#119
20120186452
2012-07-26

Multiple Layer HEPA Filter and Method of Manufacture

#120
20120107588
2012-05-03

Filter media and articles including dendrimers and/or other components

#121
20120077019
2012-03-29

HUMIDITY BARRIER

#122
20110315628
2011-12-29

System and method for capturing and bioremediating hydrocarbon pollutants using dynamic filters

#123
20110284468
2011-11-24

USES OF HYDROPHOBIC AGGREGATES AND METHODS FOR PERFORMING THOSE USES

#124
20110168622
2011-07-14

High Efficiency, High Capacity Filter Media

#125
20110147320
2011-06-23

Filter media and articles including dendrimers and/or other components

#126
20110138762
2011-06-16

Vent filter and method for manufacturing the same

#127
20110113538
2011-05-19

FUNCTIONAL PROTECTIVE MATERIAL WITH A REACTIVELY FINISHED MEMBRANE AND PROTECTIVE CLOTHING PRODUCED THEREWITH

#128
20110067369
2011-03-24

Fine fiber media layer

#129
20110039690
2011-02-17

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

#130
20110036778
2011-02-17

Filter network

#131
20100307119
2010-12-09

Multilayer nanofiber filter

#132
20100178507
2010-07-15

Polyamide Fine Fibers

#133
20100173070
2010-07-08

Porous Substrates, Articles, Systems and Compositions Comprising Nanofibers and Methods of Their Use and Production

#134
20100162895
2010-07-01

Adsorption filter material with integrated particle- and/or aerosolfiltering function and its use

#135
20100064645
2010-03-18

Fine fiber media layer

#136
20100035119
2010-02-11

STABLE TEMPERATURE PLASMA TREATED FORMATION, AND METHOD FOR THE PRODUCTION THEREOF

#137
20100024643
2010-02-04

COATING PROCESS AND COATED PRODUCT

#138
20090277836
2009-11-12

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

#139
20090143227
2009-06-04

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

#140
20090001011
2009-01-01

Gravity flow filter

#141
20080314009
2008-12-25

Fiber collecting media strip for a mist eliminator

#142
20080164195
2008-07-10

Prefilter system for biological systems

#143
20080110822
2008-05-15

Fine fiber media layer

#144
20070271891
2007-11-29

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

#145
20070271883
2007-11-29

Bag house filter with fine fiber and spun bonded media

#146
20070240576
2007-10-18

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

#147
20070190880
2007-08-16

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

#148
20070048512
2007-03-01

Functionalization of porous materials by vacuum deposition of polymers

#149
20070012007
2007-01-18

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

#150
20060257642
2006-11-16

Functionalization of porous materials by vacuum deposition of polymers

#151
20060191416
2006-08-31

Vacuum cleaner and dust bag for vacuum cleaner

#152
20060150594
2006-07-13

Fiber collecting media strip for a mist eliminator

#153
20060096910
2006-05-11

Hybrid fabric filtration device

#154
20060060085
2006-03-23

Composite filter media

#155
20060014010
2006-01-19

Composite membrane having oleophobic properties

#156
20050205489
2005-09-22

Prefilter system for biological systems