ClassID:

30221

B01D2239/0695 - 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; Special geometry of layers Wound layers

Recent Application in this class:
#1
20250249861
2025-08-07

AIRBAG INFLATOR FILTER USING EXPANDED METAL ORIENTED ROUGH SIDE FACING TOWARD THE INSIDE DIAMETER OF THE FILTER

#2
20250186909
2025-06-12

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

#3
20240424434
2024-12-26

FILTER MEDIA WITH IRREGULAR STRUCTURE AND/OR REVERSIBLY STRETCHABLE LAYERS

#4
20240149825
2024-05-09

Airbag inflator filter using expanded metal oriented rough side facing toward the inside diameter of the filter

#5
20240066439
2024-02-29

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

#6
20230415081
2023-12-28

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

#7
20230381697
2023-11-30

TUBULAR FILTER WITH NONWOVEN MEDIA AND METHOD

#8
20230381696
2023-11-30

NONWOVEN SLIVER-BASED FILTER MEDIUM FOR FILTERING PARTICULTE MATTER

#9
20230182050
2023-06-15

OIL PURIFICATION FILTER

#10
20230166204
2023-06-01

ELEMENT OF, CARTRIDGE AND CONTAINER WITH, FILTER FOR SLURRY

#11
20230026576
2023-01-26

Filter media with irregular structure and/or reversibly stretchable layers

#12
20220355236
2022-11-10

COALESCING FILTER MEDIA

#13
20220241709
2022-08-04

In process screen parameter measurement and control

#14
20220212131
2022-07-07

Nonwoven sliver-based filter medium for filtering particulate matter

#15
20210397091
2021-12-23

Method for producing coating film-forming composition for lithography

#16
20210331108
2021-10-28

Systems and methods of filtering particulate matter from a fluid

#17
20210236959
2021-08-05

HIGH FLOW COALESCER

#18
20210129060
2021-05-06

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

#19
20210016214
2021-01-21

FILTER ELEMENT CONFIGURATIONS

#20
20210001263
2021-01-07

Coalescing filter media

#21
20200353392
2020-11-12

NONWOVEN SLIVER-BASED FILTER MEDIUM FOR FILTERING PARTICULTE MATTER

#22
20200330913
2020-10-22

Filter media with irregular structure and/or reversibly stretchable layers

#23
20190224599
2019-07-25

IMPROVED AIR PURIFICATION FILTER

#24
20190070542
2019-03-07

Systems and methods of filtering particulate matter from a fluid

#25
20190039017
2019-02-07

Moisture separation system

#26
20190001247
2019-01-03

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

#27
20180304878
2018-10-25

Filter and oil catch apparatus

#28
20180229687
2018-08-16

Inflator filter

#29
20180221799
2018-08-09

Nonwoven sliver-based filter medium for filtering particulate matter

#30
20180117508
2018-05-03

Filter including RFID tag

#31
20170341006
2017-11-30

Coalescing filter media

#32
20170340997
2017-11-30

Oil catch apparatus

#33
20170120174
2017-05-04

Thermally bonded multi-layer felt filtration media

#34
20160354714
2016-12-08

Filter, Filter Element, and Filter Housing

#35
20160258362
2016-09-08

Lightweight mist eliminator for aircraft fuel tank inerting systems

#36
20150375143
2015-12-31

Helically wrapped filter

#37
20150013285
2015-01-15

Filter material

#38
20140167331
2014-06-19

Method for producing a ceramic filter element

#39
20120227468
2012-09-13

TUBULAR LIQUID-TREATING FILTER, METHOD FOR CAPTURING AND REMOVING OIL CONTENT IN LIQUID, METHOD FOR PRODUCING BEVERAGE LIQUID, AND METHOD FOR MEASURING OIL GRAM LIFE OF TUBULAR FILTER

#40
20120211408
2012-08-23

Extended Area Filter With Internal Support Structures

#41
20120111199
2012-05-10

Diesel soot particulate filter cartridge

#42
20120097032
2012-04-26

Flutable fiber webs with high dust holding capacity

#43
20120090469
2012-04-19

MULTICARTRIDGE DIESEL SOOT PARTICULATE FILTER

#44
20120061324
2012-03-15

ELEMENT REMOVAL PROCESS AND APPARATUS

#45
20120031832
2012-02-09

CYLINDRICAL FILTER

#46
20110210081
2011-09-01

FINE FIBER LIQUID PARTICULATE FILTER MEDIA

#47
20110210061
2011-09-01

COMPRESSED NANOFIBER COMPOSITE MEDIA

#48
20110210060
2011-09-01

EXPANDED COMPOSITE FILTER MEDIA INCLUDING NANOFIBER MATRIX AND METHOD

#49
20110210059
2011-09-01

Non-pleated tubular depth filter having fine fiber filtration media

#50
20110173938
2011-07-21

Multi-layered filter web

#51
20110107732
2011-05-12

FILTER ELEMENTS

#52
20110072971
2011-03-31

Active-particulate air filter having monolith primary filter and polishing filter

#53
20110005394
2011-01-13

MEDIA FOR REMOVAL OF ORGANIC COMPOUNDS

#54
20100319543
2010-12-23

Flutable fiber webs with high dust holding capacity

#55
20100314333
2010-12-16

FLUTABLE FIBER WEBS WITH LOW SURFACE ELECTRICAL RESISTIVITY FOR FILTRATION

#56
20100146922
2010-06-17

Wound Wire Filter Elements

#57
20100034981
2010-02-11

METHOD FOR PRODUCING A CERAMIC FILTER ELEMENT

#58
20100011725
2010-01-21

Reinforced filter element

#59
20090199958
2009-08-13

Method for manufacturing a filtration device

#60
20090078658
2009-03-26

OIL FILTER ELEMENT OF WOUND COTTON/PAPER COMPOSITION

#61
20090039028
2009-02-12

Liquid filtration systems

#62
20090019825
2009-01-22

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

#63
20080314009
2008-12-25

Fiber collecting media strip for a mist eliminator

#64
20080308497
2008-12-18

Filter Element

#65
20080274312
2008-11-06

Bag house filters and media

#66
20080274020
2008-11-06

Carrier for exhaust-gas purification and exhaust-gas purifier having the carrier

#67
20080264023
2008-10-30

Fabrication method of diesel particular filter element

#68
20080250775
2008-10-16

Particulate trap with coated fiber layer and exhaust system having the particulate trap

#69
20080164195
2008-07-10

Prefilter system for biological systems

#70
20080148945
2008-06-26

Filter layer for an, in particular conical, honeycomb body for exhaust gas treatment, method for manufacturing the filter layer, honeycomb body and exhaust gas purification device

#71
20080124505
2008-05-29

Filter Grid Cover

#72
20080073299
2008-03-27

OIL FILTER ELEMENT OF WOUND COTTON /PAPER COMPOSITION

#73
20080026041
2008-01-31

NON-WOVEN MEDIA INCORPORATING ULTRAFINE OR NANOSIZE POWDERS

#74
20080023394
2008-01-31

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

#75
20070251876
2007-11-01

Hybrid filter element and method

#76
20070213002
2007-09-13

Cleaning Treatment Material, Air Filter, Air Conditioner, Heat Exchange Element, and Heat Exchanging Unit

#77
20070095747
2007-05-03

Composite fiber environmental filtration media containing flocculant

#78
20070062887
2007-03-22

Space optimized coalescer

#79
20060216459
2006-09-28

Cover made of woven pile

#80
20060196821
2006-09-07

Filter for absorbing water

#81
20060150594
2006-07-13

Fiber collecting media strip for a mist eliminator

#82
20060144026
2006-07-06

Air cleanness filter

#83
20060042210
2006-03-02

Acidic impregnated filter element, and methods

#84
20060042209
2006-03-02

Alkaline impregnated filter element, and methods

#85
20050232830
2005-10-20

High-temperature-resistant coated fiber layer and particulate trap with the coated fiber layer

#86
20050205489
2005-09-22

Prefilter system for biological systems