Patents-Review.com
ClassID:

30213 ⎘

B01D2239/0659 - 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 needling

Recent Application in this class:
#1
20260115638
2026-04-30

ELECTRET-CONTAINING FILTER MEDIA

 #2
20260108833
2026-04-23

MULTI-LAYERED ELECTRET-CONTAINING FILTRATION MEDIA

 #3
20250339799
2025-11-06

FILTER MEDIA, TRIBOELECTRICALLY CHARGED FIBERS THEREOF, AND METHODS FOR THE SAME

 #4
20250099887
2025-03-27

FILTER MATERIAL COMPRISING A GRADIENT STRUCTURE NONWOVEN BASE LAYER AND A NANOFIBER TOP LAYER

 #5
20240342636
2024-10-17

NEEDLE-PUNCHED FILTRATION COMPOSITE AND METHOD OF MAKING SAME

 #6
20240156188
2024-05-16

FILTRATION GARMENTS

 #7
20240042356
2024-02-08

Filtration media and method of manufacturing filtration media using nanofilm

 #8
20240042252
2024-02-08

Personal protective equipment face coverings with inherently ionic material

 #9
20230381697
2023-11-30

TUBULAR FILTER WITH NONWOVEN MEDIA AND METHOD

 #10
20230356124
2023-11-09

INTAKE FILTER FOR VEHICLE AND MANUFACTURING METHOD THEREOF

 #11
20230285876
2023-09-14

OIL AND FUEL COLLECTOR

 #12
20230032052
2023-02-02

NANOFIBER BEARING PERMEABLE FILTER LAMINAE

 #13
20220105453
2022-04-07

ELECTRET-CONTAINING FILTER MEDIA

 #14
20210178304
2021-06-17

Electret-containing filter media

 #15
20210031129
2021-02-04

CLEANABLE FILTER MEDIUM

 #16
20210008476
2021-01-14

INTAKE FILTER FOR VEHICLE AND MANUFACTURING METHOD THEREOF

 #17
20200324234
2020-10-15

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

 #18
20200164295
2020-05-28

BAG FILTER FABRIC AND PRODUCTION METHOD THEREFOR

 #19
20180345190
2018-12-06

Catalytic filter material

 #20
20180236389
2018-08-23

Electret-containing filter media

 #21
20180236385
2018-08-23

ELECTRET-CONTAINING FILTER MEDIA

 #22
20180154290
2018-06-07

Gravity-fed water purification system

 #23
20180028953
2018-02-01

Pre-air-filter for internal combustion engine

 #24
20180001247
2018-01-04

MULTI-LAYERED ELECTRET-CONTAINING FILTRATION MEDIA

 #25
20170225110
2017-08-10

Long-life air filter for automobiles and method of manufacturing the long-life air filter

 #26
20170120175
2017-05-04

Geosynthetic composite for filtration and drainage of fine-grained geomaterials

 #27
20160175753
2016-06-23

Filtering medium for deodorizing filter

 #28
20150328401
2015-11-19

Pivoting joint infusion system with seal

 #29
20140255100
2014-09-11

Geosynthetic composite for filtration and drainage of fine-grained geomaterials

 #30
20140174934
2014-06-26

Filter medium

 #31
20140000229
2014-01-02

Composite microporous filter material

 #32
20120067220
2012-03-22

Filtration media and applications thereof

 #33
20120017763
2012-01-26

Filtration media and applications thereof

 #34
20110173938
2011-07-21

Multi-layered filter web

 #35
20110112481
2011-05-12

Pivoting joint infusion system with seal

 #36
20110108487
2011-05-12

Methods of using geotextile composite for filtration of contaminated liquids and sediments

 #37
20110031191
2011-02-10

Filter material for removing aggregates and method of filtering blood product

 #38
20110011044
2011-01-20

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

 #39
20100236202
2010-09-23

Filter medium

 #40
20090277836
2009-11-12

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

 #41
20090176295
2009-07-09

Use of mosses and/or lichens, element and method for reducing the particulate matter content of air

 #42
20090134089
2009-05-28

Fish tank filter

 #43
20090114597
2009-05-07

Geotextile composite for filtration of contaminated liquids and sediments

 #44
20090056548
2009-03-05

Dust collection device for sanding tool

 #45
20080274658
2008-11-06

Needlepunched nanoweb structures

 #46
20080274312
2008-11-06

Bag house filters and media

 #47
20080166938
2008-07-10

MICROFIBER SPLIT FILM FILTER FELT AND METHOD OF MAKING SAME

 #48
20080070022
2008-03-20

Air filter material

 #49
20070227981
2007-10-04

Contaminant-reactive geocomposite mat and method of manufacture and use

 #50
20070059542
2007-03-15

Contaminant-reactive geocomposite mat and method of manufacture and use

 #51
20060286888
2006-12-21

Contaminant-reactive geocomposite mat and method of manufacture and use

 #52
20060241551
2006-10-26

Pivoting joint infusion system with steal

 #53
20060172639
2006-08-03

Filter medium

 #54
20060163152
2006-07-27

Porous composite materials comprising a plurality of bonded fiber component structures

 #55
20060096910
2006-05-11

Hybrid fabric filtration device

 #56
20060049100
2006-03-09

Medium and high viscosity hydrocarbon collecting net

 #57
20050103707
2005-05-19

Contaminant-reactive geocomposite mat and method of manufacture and use

 #58
20050087286
2005-04-28

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