Patents-Review.com
ClassID:

30218 ⎘

B01D2239/0681 - 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; More than one layer present in the filtering material The layers being joined by gluing

Recent Application in this class:
#1
20260138067
2026-05-21

FILTER ASSEMBLIES UTILIZING FULL CROSS-SECTION

 #2
20260097341
2026-04-09

DUAL-LAYER GAS FILTERS AND SYSTEMS AND METHODS FOR MAKING THE SAME

 #3
20250262581
2025-08-21

FILTER AND METHOD FOR MANUFACTURING SAME

 #4
20250186928
2025-06-12

EXPANDABLE PLEATED AIR FILTERS

 #5
20250153079
2025-05-15

FILTER MEDIA, ELEMENTS, AND METHODS

 #6
20250032963
2025-01-30

FILTER MEDIA INCLUDING ADHESIVES AND/OR OLEOPHOBIC PROPERTIES

 #7
20240424435
2024-12-26

FILTER MEDIA AND ELEMENTS

 #8
20240367078
2024-11-07

A FILTER AND A METHOD OF MAKING A FILTER

 #9
20240335782
2024-10-10

CORRUGATED FILTER MEDIA

 #10
20240316483
2024-09-26

SELF-CLEANING FILTER

 #11
20240139662
2024-05-02

Filter media, elements, and methods

 #12
20240049816
2024-02-15

ELECTRIC FIELD PRODUCTION FOR REMEDIATION OF MICROORGANISMS

 #13
20230364546
2023-11-16

FILTER ELEMENT WITH IMPROVED DUST LOADING

 #14
20230330454
2023-10-19

METHOD FOR PRODUCING A RESPIRATORY PROTECTION MASK

 #15
20230321571
2023-10-12

DUAL-LAYER GAS FILTERS AND SYSTEMS AND METHODS FOR MAKING THE SAME

 #16
20230135994
2023-05-04

MULTILAYERED TEXTILE AS/FOR DURABLE AND WASHABLE HIGH-PERFORMANCE FILTRATION MEDIA AND METHOD OF ASSEMBLING THEREOF

 #17
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.

 #18
20230001339
2023-01-05

MASK COMPRISING REUSABLE SHELL AND FILTER INSERT

 #19
20220410123
2022-12-29

AIR FILTER MEDIA

 #20
20220387916
2022-12-08

Filter media including adhesives and/or oleophobic properties

 #21
20220362695
2022-11-17

FILTER MEDIUM

 #22
20220347991
2022-11-03

Layered body

 #23
20220233989
2022-07-28

Flame trap filter

 #24
20220212132
2022-07-07

Filter media and elements

 #25
20220118387
2022-04-21

Filter media, elements, and methods

 #26
20220118386
2022-04-21

FILTER ASSEMBLIES UTILIZING FULL CROSS-SECTION

 #27
20220001317
2022-01-06

NANO SILVER ACTIVE FILTER ELEMENT AND A METHOD FOR PREPARING THE NANO SILVER ACTIVE FILTER

 #28
20210370218
2021-12-02

FILTER MEDIA COMPRISING ADSORPTIVE PARTICLES

 #29
20210322801
2021-10-21

WASHABLE AND REUSABLE FACE MASK WITH REPLACEABLE FILTER

 #30
20210291094
2021-09-23

Filter media including adhesives

 #31
20210275958
2021-09-09

Fiberglass product for a filter apparatus

 #32
20210229010
2021-07-29

Filter media including adhesives and/or oleophobic properties

 #33
20210187421
2021-06-24

FILTER MEDIA COMPRISING A NON-WETLAID BACKER

 #34
20210129060
2021-05-06

Filter medium, method for producing same and the filter medium in a filter element

 #35
20210106937
2021-04-15

FILTER CARTRIDGE INCLUDING PATTERNED FUNCTIONAL MATERIAL

 #36
20200368654
2020-11-26

FILTER MEDIA COMPRISING ELASTOMERIC FIBERS

 #37
20200346148
2020-11-05

Method for producing a filter medium, and a filter medium

 #38
20200254372
2020-08-13

NONWOVEN AIR FILTRATION MEDIUM

 #39
20200215470
2020-07-09

Filter medium

 #40
20200206666
2020-07-02

Filter media including adhesives and/or oleophobic properties

 #41
20200173404
2020-06-04

Filter element for an engine air filter assembly having a nonwoven pre-filter and related method

 #42
20200173403
2020-06-04

Filter element for an engine air filter assembly having a nonwoven pre-filter and related method

 #43
20200155985
2020-05-21

Filter Medium, Method for Producing Same, and Use of the Filter Medium in a Filter Element

 #44
20200122069
2020-04-23

ELASTOMERIC DEPTH FILTER

 #45
20200114291
2020-04-16

Gradient nanofiber filter media

 #46
20200094539
2020-03-26

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

 #47
20200009492
2020-01-09

Fabric material composite construction for use as a filter means

 #48
20200009409
2020-01-09

Respiratory filtering fabric and garment made therefrom

 #49
20190336897
2019-11-07

Filter media and elements

 #50
20190255473
2019-08-22

Filter media, elements, and methods

 #51
20190224598
2019-07-25

Filter medium

 #52
20190184317
2019-06-20

Air filter material

 #53
20180319146
2018-11-08

Filter apparatus having a housing and filter media inside the housing

 #54
20180311600
2018-11-01

ACTIVATED CARBON FIBER FILTER MEDIA LAMINATE

 #55
20180243675
2018-08-30

Gradient nanofiber filter media

 #56
20180243673
2018-08-30

Self-cleaning filter

 #57
20180230952
2018-08-16

Coalescence element and filter element having a coalescence element

 #58
20180207613
2018-07-26

Textile protective material of a new type and method for producing same

 #59
20180178150
2018-06-28

Method for producing a filter medium, and a filter medium

 #60
20180154290
2018-06-07

Gravity-fed water purification system

 #61
20180036669
2018-02-08

FABRIC MATERIAL COMPOSITE CONSTRUCTION FOR USE AS A FILTER MEANS

 #62
20170368382
2017-12-28

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

 #63
20170252685
2017-09-07

Fiber laminate and manufacturing method thereof

 #64
20170028329
2017-02-02

Laminated nonwoven fabric and air purifier

 #65
20160279550
2016-09-29

FILTER MATERIAL, FILTER ELEMENT, AND A METHOD AND A DEVICE FOR PRODUCING A FILTER MATERIAL

 #66
20160279548
2016-09-29

Filter medium

 #67
20160199767
2016-07-14

Filter material, filter element, and method and device for producing a filter material

 #68
20160166961
2016-06-16

Gradient nanofiber filter media

 #69
20160129381
2016-05-12

Filter media and elements

 #70
20150013285
2015-01-15

Filter material

 #71
20140332476
2014-11-13

Elastomeric depth filter

 #72
20140302981
2014-10-09

Activated carbon with a metal based component

 #73
20140190353
2014-07-10

Filter media with improved conductivity

 #74
20140083926
2014-03-27

Filter media for long-term high temperature applications

 #75
20130140228
2013-06-06

Filter material for fluids and method for producing a filter material

 #76
20120222679
2012-09-06

Reinforced filter media

 #77
20120217194
2012-08-30

Porous Pavement for Water Quality and Quantity Management

 #78
20120070587
2012-03-22

Filtration media for filtering particulate material from gas streams

 #79
20120067220
2012-03-22

Filtration media and applications thereof

 #80
20120012523
2012-01-19

FABRIC MATERIAL COMPOSITE CONSTRUCTION FOR USE AS A FILTER MEANS

 #81
20110277638
2011-11-17

Gas anti diffusion assemblies

 #82
20110272343
2011-11-10

Cardiopulmonary bypass circuit including a filtration device

 #83
20110265312
2011-11-03

Filter media with improved conductivity

 #84
20110173938
2011-07-21

Multi-layered filter web

 #85
20110147976
2011-06-23

MELTBLOWN FILTER MEDIUM

 #86
20110114095
2011-05-19

ANTIVIRAL METAL IMPREGNATED ACTIVATED CARBON CLOTH COMPONENTS

 #87
20110113538
2011-05-19

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

 #88
20110084017
2011-04-14

REINFORCED, PLEATED FILTER STRUCTURE

 #89
20110049041
2011-03-03

FUEL FILTER ELEMENT

 #90
20110042316
2011-02-24

Liquid filtration media

 #91
20100330236
2010-12-30

FIBER SHEET

 #92
20100326028
2010-12-30

Pleated filter with tridirectional scrim

 #93
20100236202
2010-09-23

Filter medium

 #94
20100212071
2010-08-26

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

 #95
20100162895
2010-07-01

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

 #96
20100146922
2010-06-17

Wound Wire Filter Elements

 #97
20100011725
2010-01-21

Reinforced filter element

 #98
20100011720
2010-01-21

Apparatus and system for filtering air

 #99
20100006498
2010-01-14

MULTILAYER COMPOSITE NONWOVEN MATERIAL, A FLUID FILTER AND A METHOD OF MAKING THE NONWOVEN MATERIAL

 #100
20100000411
2010-01-07

Meltblown filter medium, related applications and uses

 #101
20090261032
2009-10-22

Filter element with active carbon coating

 #102
20090247970
2009-10-01

Enclosure ventilation filter and assembly method

 #103
20090238646
2009-09-24

Method of constructing a filtering pavement surface

 #104
20090120048
2009-05-14

Meltblown filter medium

 #105
20090078119
2009-03-26

Air Filter and System

 #106
20090044702
2009-02-19

Filter element and method

 #107
20090026137
2009-01-29

Liquid filtration media

 #108
20090019825
2009-01-22

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

 #109
20080274312
2008-11-06

Bag house filters and media

 #110
20080241505
2008-10-02

FUNCTIONAL PARTICLE CARRIED SHEET AND MANUFACTURING METHOD THEREOF

 #111
20080217239
2008-09-11

Liquid filtration media

 #112
20080166938
2008-07-10

MICROFIBER SPLIT FILM FILTER FELT AND METHOD OF MAKING SAME

 #113
20080023383
2008-01-31

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

 #114
20080017038
2008-01-24

HIGH EFFICIENCY HVAC FILTER

 #115
20070289919
2007-12-20

Filter medium and method for preparing same

 #116
20070227981
2007-10-04

Contaminant-reactive geocomposite mat and method of manufacture and use

 #117
20070163217
2007-07-19

Cellulosic/polyamide composite

 #118
20070123130
2007-05-31

MULTIPLE-LAYER, MULTIPLE-DENIER NONWOVEN FIBER BATT

 #119
20070059542
2007-03-15

Contaminant-reactive geocomposite mat and method of manufacture and use

 #120
20070028767
2007-02-08

Filter media with improved conductivity

 #121
20070004301
2007-01-04

Textile composite material comprising activated carbon fibres and production thereof

 #122
20060286888
2006-12-21

Contaminant-reactive geocomposite mat and method of manufacture and use

 #123
20060137318
2006-06-29

Filtration media for filtering particulate material from gas streams

 #124
20060137317
2006-06-29

Filtration media for filtering particulate material from gas streams

 #125
20060096910
2006-05-11

Hybrid fabric filtration device

 #126
20060032807
2006-02-16

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

 #127
20050103707
2005-05-19

Contaminant-reactive geocomposite mat and method of manufacture and use

 #128
20050087286
2005-04-28

Manufacturing process of a Teflon dual-direction extending film filtration nonwoven (I)