ClassID:

30189

B01D2239/0421 - 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 hydrophilic

Recent Application in this class:
#1
20260139418
2026-05-21

NONWOVEN FABRICS INCLUDING RECYCLED POLYPROPYLENE

#2
20260130526
2026-05-14

INFECTION CONTROL FILTER LABEL

#3
20250387738
2025-12-25

COMPOSITE MEDIA FOR FUEL STREAMS

#4
20250375724
2025-12-11

FILTER SYSTEM USABLE AS CELL CULTURE CLARIFICATION FILTER IN PROTEIN PURIFICATION

#5
20250249430
2025-08-07

Water filter and medium therefor

#6
20250242110
2025-07-31

FLUID DELIVERY FILTERS

#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
20250186909
2025-06-12

Filter Layer Structure, Filter Assembly, and Method of Forming a Filter Layer Structure

#11
20250073614
2025-03-06

OIL-WATER SEPARATION FILTER AND APPARATUS, AND METHOD OF OPERATING THE SAME

#12
20250050250
2025-02-13

WATER PURIFICATION SYSTEM AND METHOD

#13
20250032963
2025-01-30

FILTER MEDIA INCLUDING ADHESIVES AND/OR OLEOPHOBIC PROPERTIES

#14
20250012273
2025-01-09

GRAVITY FLOW FILTRATION OF HYDROCARBONS FROM AN OIL-IN-WATER EMULSION

#15
20240367079
2024-11-07

Water Filter and Medium Therefor

#16
20240173658
2024-05-30

HYDROCARBON FLUID-WATER SEPARATION

#17
20240165540
2024-05-23

FILTER FOR OIL CONTROL ROBOT

#18
20240082609
2024-03-14

FILTRATION ELEMENT AND USES THEREOF

#19
20240066439
2024-02-29

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

#20
20230375566
2023-11-23

FIBROUS MAT FOR METABOLOME SAMPLING

#21
20230292860
2023-09-21

MULTIFUNCTIONAL FILTER MATERIALS

#22
20230285876
2023-09-14

OIL AND FUEL COLLECTOR

#23
20230233969
2023-07-27

COMPOSITE MEDIA FOR FUEL STREAMS

#24
20230226469
2023-07-20

Filter insert and sample vial using the same

#25
20230173436
2023-06-08

COATED SUBSTRATES THAT DEMONSTRATE PREFERENTIAL PERMEABILITY TO WATER, SUITABLE AS MEMBRANES FOR SEPARATING OIL-IN-WATER EMULSIONS

#26
20230167590
2023-06-01

Nonwoven Fabrics Including Recycled Polypropylene

#27
20230144786
2023-05-11

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

#28
20230140619
2023-05-04

FILTERS, FILTER SYSTEMS, AND METHODS OF USE

#29
20230112349
2023-04-13

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

#30
20230106871
2023-04-06

INFECTION CONTROL FILTER LABEL

#31
20230081385
2023-03-16

Barrier vent assembly

#32
20230039303
2023-02-09

SYSTEM FOR CONTINUOUS OIL/WATER SEPARATION USING SUPERHYDROPHILIC OIL/WATER SEPARATION FILTER

#33
20230022778
2023-01-26

ULTRA-HYDROPHILIC FILTRATION FILTER FOR OIL-WATER SEPARATION AND METHOD FOR MANUFACTURING SAME

#34
20220387916
2022-12-08

Filter media including adhesives and/or oleophobic properties

#35
20220355236
2022-11-10

COALESCING FILTER MEDIA

#36
20220347611
2022-11-03

HIGH PARTICLE CAPTURE MOISTURE ABSORBING FABRIC

#37
20220339567
2022-10-27

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

#38
20220338770
2022-10-27

BLOOD COMPONENTS COLLECTION AND SEPARATION MEDIA, BLOOD COMPONENTS COLLECTION AND SEPARATION DEVICE COMPRISING SAID MEDIA, AND BLOOD COMPONENTS SEPARATION AND EXTRACTION PROCESS IMPLEMENTING SAID MEDIA

#39
20220249997
2022-08-11

SURFACE MODIFIED FILTER MEDIA

#40
20220233982
2022-07-28

AIR FILTERING ELEMENT

#41
20220203278
2022-06-30

NONWOVEN FABRIC, NONWOVEN FABRIC MANUFACTURING METHOD, AND FILTER

#42
20220196012
2022-06-23

Gravity flow filtration of hydrocarbons from an oil-in-water emulsion

#43
20220152536
2022-05-19

Hydrocarbon fluid-water separation

#44
20220118380
2022-04-21

SUPER-HYDROPHILIC SURFACE TREATMENT METHOD OF FILTRATION MEDIUM, SUPER-HYDROPHILIC FILTER FOR OIL-WATER SEPARATION AND METHOD OF FABRICATING THE SAME

#45
20220105454
2022-04-07

BLOOD PURIFIER

#46
20220095626
2022-03-31

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

#47
20220074922
2022-03-10

Polymer microfilters, devices comprising the same, methods of manufacturing the same, and uses thereof

#48
20210394085
2021-12-23

HIGH-PERFORMANCE FABRIC FOR WATER/DIESEL SEPARATING FILTERS

#49
20210387123
2021-12-16

LIQUID FILTER AND MANUFACTURING METHOD FOR LIQUID FILTER

#50
20210316240
2021-10-14

LASER-SINTERED FILTER, METHOD FOR PRODUCING THE FILTER, AND METHOD FOR ENSURING FLUID FLOW

#51
20210252207
2021-08-19

Virus-collecting filter for medical aspirator system

#52
20210229010
2021-07-29

Filter media including adhesives and/or oleophobic properties

#53
20210129110
2021-05-06

POLYCATIONIC MICROFIBERS AND METHODS OF USING THE SAME

#54
20210093989
2021-04-01

Stable filter media including nanofibers

#55
20210060456
2021-03-04

Filter media configurations

#56
20210016214
2021-01-21

FILTER ELEMENT CONFIGURATIONS

#57
20210001263
2021-01-07

Coalescing filter media

#58
20200398203
2020-12-24

Barrier vent assembly

#59
20200391148
2020-12-17

FILTER MEDIA INCLUDING A WAVED FILTRATION LAYER

#60
20200362507
2020-11-19

Superficially treated flexible materials suitable for filtering and separating immiscible liquids

#61
20200316532
2020-10-08

FILTER MEDIA

#62
20200316504
2020-10-08

Nanostructured fibrous membranes for membrane distillation

#63
20200206666
2020-07-02

Filter media including adhesives and/or oleophobic properties

#64
20200189932
2020-06-18

Apparatus and method for filtering water

#65
20200086236
2020-03-19

High bulk coalescing filter media and use thereof

#66
20200009488
2020-01-09

Surface modified filter media

#67
20190383794
2019-12-19

Polymer microfilters, devices comprising the same, methods of manufacturing the same, and uses thereof

#68
20190336891
2019-11-07

Filter insert and sample vial using the same

#69
20190336888
2019-11-07

SURFACE MODIFIED FILTER MEDIA

#70
20190314745
2019-10-17

Hydrocarbon fluid-water separation

#71
20190247277
2019-08-15

Preservative removal from eye drops

#72
20190176095
2019-06-13

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

#73
20190136187
2019-05-09

Blood Isolation and Extraction Method and Device Thereof

#74
20190105587
2019-04-11

Filter insert of a fuel filter, filter insert, and fuel filter

#75
20190046361
2019-02-14

Hydrophilic polyurethane nanofiber and method for manufacturing same

#76
20190022565
2019-01-24

Compact gas-liquid filtration cyclone separation unit

#77
20180347427
2018-12-06

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

#78
20180345190
2018-12-06

Catalytic filter material

#79
20180318765
2018-11-08

Method for manufacturing water treatment separator, water treatment separator manufactured using same, and water treatment module comprising water treatment separator

#80
20180272261
2018-09-27

FILTER MEDIUM

#81
20180272259
2018-09-27

Electret and electret filter

#82
20180250636
2018-09-06

Discharge member with filter

#83
20180207564
2018-07-26

Blood separation media and lateral flow devices for blood samples

#84
20180193787
2018-07-12

Air-permeable filter provided with oil repellency

#85
20180185777
2018-07-05

Composite media for fuel streams

#86
20180179717
2018-06-28

Oil collecting apparatus and oil collecting system having the same

#87
20180050293
2018-02-22

Hydrocarbon fluid-water separation

#88
20180021713
2018-01-25

Barrier vent assembly

#89
20170365864
2017-12-21

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

#90
20170354774
2017-12-14

Blood filter and method of manufacturing the same

#91
20170341006
2017-11-30

Coalescing filter media

#92
20170326486
2017-11-16

Nanostructured fibrous membranes for membrane distillation

#93
20170312673
2017-11-02

Filter media including a waved filtration layer

#94
20170247265
2017-08-31

Filter medium, method for producing filter medium, water treatment module, and water treatment device

#95
20170239601
2017-08-24

Stretchable laminated filter material and protective article

#96
20170210643
2017-07-27

Oil-water separation apparatus and drainage system

#97
20170203245
2017-07-20

WATER FILTER APPARATUS AND METHOD OF FILTERING FINE PARTICLES FROM WATER

#98
20160310629
2016-10-27

Anti-Microbial Air Processor for a Personal Patient-Warming Apparatus

#99
20160303498
2016-10-20

Stable filter media including nanofibers

#100
20160296856
2016-10-13

High bulk coalescing filter media and use thereof

#101
20160263509
2016-09-15

Coalescence filter

#102
20160220927
2016-08-04

Filtration media fiber structure and method of making same

#103
20160136554
2016-05-19

Surface modified filter media

#104
20160061158
2016-03-03

Filter water management using hydrophilic material

#105
20150328565
2015-11-19

Surface modified filter media

#106
20150284269
2015-10-08

Superhydrophobic filter structure for selectively separating water and oil

#107
20150203370
2015-07-23

Superhydrophilic filter structure for selectively separating water and oil

#108
20150182878
2015-07-02

Coalescence filter and method for purifying a fluid

#109
20150140333
2015-05-21

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

#110
20150044267
2015-02-12

Advanced fabric technology and filters

#111
20140291227
2014-10-02

Leukocyte filtration unit with reduced platelet adhesion

#112
20140260990
2014-09-18

Filtration media fiber structure and method of making same

#113
20140209534
2014-07-31

Filters for oil-water separation having zwitterionic polymers coated or grafted thereon

#114
20140044756
2014-02-13

Multilayer nanofiber filter

#115
20140023895
2014-01-23

Gas-permeable filter provided with oil repellency

#116
20130122215
2013-05-16

Functionalized nonwoven article

#117
20130059308
2013-03-07

Polymer microfilters and methods of manufacturing the same

#118
20130020240
2013-01-24

Device and implementation for filtering oil from water in an appliance

#119
20120160254
2012-06-28

CRYOTROPIC HYDROGELS AND THEIR USE AS FILTERS

#120
20120077019
2012-03-29

HUMIDITY BARRIER

#121
20110303620
2011-12-15

Superoleophobic and superhydrophilic fabric filters for rapid water-oil separation

#122
20110278217
2011-11-17

WEDGE WIRE SCREEN DEVICE

#123
20110259796
2011-10-27

Apparatus and method for removing contaminants from industrial fluids

#124
20110252970
2011-10-20

Filtration Media for High Humidity Environments

#125
20110146697
2011-06-23

Method and apparatus for the plasma processing of filter material

#126
20110039690
2011-02-17

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

#127
20110036778
2011-02-17

Filter network

#128
20110031191
2011-02-10

Filter material for removing aggregates and method of filtering blood product

#129
20100320138
2010-12-23

Functionalized nonwoven article

#130
20100307119
2010-12-09

Multilayer nanofiber filter

#131
20100212071
2010-08-26

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

#132
20100173070
2010-07-08

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

#133
20100024643
2010-02-04

COATING PROCESS AND COATED PRODUCT

#134
20090143227
2009-06-04

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

#135
20090001011
2009-01-01

Gravity flow filter

#136
20080314821
2008-12-25

Filter medium, fluid filter, and engine oil filter

#137
20080023394
2008-01-31

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

#138
20070272606
2007-11-29

Multi-functional coatings on microporous substrates

#139
20070199890
2007-08-30

Antimicrobial activated carbon and use thereof

#140
20070048512
2007-03-01

Functionalization of porous materials by vacuum deposition of polymers

#141
20060257642
2006-11-16

Functionalization of porous materials by vacuum deposition of polymers