ClassID:

29384

B01D39/1676 - CPC Classification

Classification description:

Filtering material for liquid or gaseous fluids; Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres; Cellular material of synthetic origin

Recent Application in this class:
#1
20250357621
2025-11-20

Battery Pack and Device Including the Same

#2
20250214015
2025-07-03

AIR FILTER PRECLEANER

#3
20250093813
2025-03-20

IMAGE FORMING APPARATUS

#4
20240399631
2024-12-05

FILTER MEDIA AND RELATED FOAM FORMING METHODS

#5
20240390830
2024-11-28

FILTER FOR AN AIR-CONDITIONING SYSTEM OF A VEHICLE AND A METHOD OF INSTALLING SUCH A FILTER

#6
20240325952
2024-10-03

INHERENTLY STABLE, FLOW-POROUS FILTER ELEMENT AND METHOD FOR PRODUCING SUCH A FILTER ELEMENT

#7
20240307808
2024-09-19

Air Filter and Method for Manufacturing an Air Filter

#8
20240216843
2024-07-04

Chemical liquid purification method and chemical liquid

#9
20240207765
2024-06-27

VIRAL FILTRATION MEDIA, ARTICLES, AND METHODS

#10
20240066439
2024-02-29

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

#11
20240042363
2024-02-08

GAS FILTERS COMPRISING A MATRIX MATERIAL AND A CARBON DIOXIDE SORBENT

#12
20240024809
2024-01-25

Porous Materials For Treating Contaminants

#13
20230382608
2023-11-30

POURER FOR POURING A LIQUID FROM A BOTTLE, AND PRODUCT OF THE POURER, THE LIQUID, AND THE BOTTLE

#14
20230364543
2023-11-16

Air filter precleaner

#15
20230356186
2023-11-09

Polymer matrix composites comprising functional particles and methods of making the same

#16
20230272605
2023-08-31

Protector for a drain

#17
20230201800
2023-06-29

AIR PERMEABLE FILTER MATERIAL COMPRISING A POLYMER AEROGEL

#18
20230190978
2023-06-22

ANTI-MICROBIAL FILTER

#19
20230093340
2023-03-23

Face Aerogel Cover Equipment

#20
20230087746
2023-03-23

Chemical liquid purification method and chemical liquid

#21
20220362700
2022-11-17

Device for collecting particulate matter

#22
20220040670
2022-02-10

Beta-cyclodextrin-based monoliths through emulsion templating

#23
20220010659
2022-01-13

Filtration media including porous polymeric material and degradable shape memory material

#24
20220003083
2022-01-06

Filtration of fluids using conformable porous shape memory media

#25
20220001319
2022-01-06

Dust filter

#26
20220001318
2022-01-06

Dust filter

#27
20210393481
2021-12-23

SYSTEMS AND METHODS FOR PRESERVATIVE REMOVAL FROM OPHTHALMIC FORMULATIONS COMPRISING COMPLEXING AGENTS

#28
20210387126
2021-12-16

POROUS MATERIALS FOR TREATING CONTAMINANTS

#29
20210387122
2021-12-16

CATALYST-ADSORBENT FILTER FOR AIR PURIFICATION

#30
20210370208
2021-12-02

FILTER MEDIA COMPRISING POLYAMIDE FIBERS

#31
20210362916
2021-11-25

Product with a non-alcohol drink and method for preserving said drink

#32
20210331107
2021-10-28

FILTRATION ARTICLE FOR PERSONAL PROTECTIVE EQUIPMENT

#33
20210324713
2021-10-21

SWELLABLE DEVICES BASED ON RENEWABLE RAW MATERIALS AND METHODS OF USING IN WELLBORES

#34
20210260514
2021-08-26

Air filter precleaner

#35
20210187423
2021-06-24

Adapter and air filter cartridge being adapted for use with such an adapter

#36
20210106976
2021-04-15

Air-permeable sheet filter material, methods for the production and use thereof

#37
20210101816
2021-04-08

Pond filter and method for operating the pond filter

#38
20210039033
2021-02-11

HYBRID FILTER FOR FILTERING OUT FINE AND ULTRAFINE DUST

#39
20210001255
2021-01-07

Electretized sheet and filter

#40
20200368107
2020-11-26

PRESERVATIVE REMOVAL FROM EYE DROPS

#41
20200330958
2020-10-22

Polymer matrix composites comprising functional particles and methods of making the same

#42
20200246222
2020-08-06

Systems and Methods for Preservative Removal from Ophthalmic Formulations Comprising Complexing Agents

#43
20200172695
2020-06-04

FLUORORESIN POROUS FILM AND PREPARATION METHOD THEREOF

#44
20200164294
2020-05-28

Chemical liquid purification method and chemical liquid

#45
20200109548
2020-04-09

Erosion and sediment control above grate based inlet filter system including high traffic embodiments

#46
20190388815
2019-12-26

MULTILAYER CELLULAR MEMBRANES FOR FILTRATION APPLICATIONS

#47
20190314750
2019-10-17

Filter media for filtration of cooking fumes

#48
20190255474
2019-08-22

Device for collecting particulate matter

#49
20190247277
2019-08-15

Preservative removal from eye drops

#50
20190201823
2019-07-04

Composite material for air purification, preparation method therefor and application thereof

#51
20190119462
2019-04-25

Porous Polymer Scaffolds, and Methods of Making and Using the Same

#52
20190040618
2019-02-07

Erosion and sediment control above grate based inlet filter system

#53
20180369730
2018-12-27

Filter material and filter element produced therefrom

#54
20180250636
2018-09-06

Discharge member with filter

#55
20180126024
2018-05-10

Microporous material

#56
20180057630
2018-03-01

Polyurethane filter foam

#57
20180043291
2018-02-15

MULTILAYER CELLULAR MEMBRANES FOR FILTRATION APPLICATIONS

#58
20170260351
2017-09-14

Porous material and methods of making and of using the same

#59
20170254063
2017-09-07

Erosion and sediment control above grate based inlet filter system

#60
20170157544
2017-06-08

Hybrid felts of electrospun nanofibers

#61
20170056802
2017-03-02

Method of manufactring an antibacterial filter comprising copper-based compound particles

#62
20160332104
2016-11-17

Antibacterial filter comprising copper-based sulfur compound

#63
20160175799
2016-06-23

Cross-linked carbon nanotube networks

#64
20160166953
2016-06-16

FILTER MEDIA INCLUDING FINE STAPLE FIBERS

#65
20160159666
2016-06-09

Removing sulfur contaminants from water using a silicone-based chemical filter

#66
20160158710
2016-06-09

Removing sulfur contaminants from a fluid using a silicone-based chemical filter

#67
20150360158
2015-12-17

Hybrid felts of electrospun nanofibers

#68
20150151228
2015-06-04

Filter

#69
20150018306
2015-01-15

Chitosan based high performance filter with self-regenerating ability

#70
20140364519
2014-12-11

Method of making ligand functionalized substrates

#71
20140302981
2014-10-09

Activated carbon with a metal based component

#72
20140291224
2014-10-02

Filter medium layer and filter device provided with same

#73
20140256834
2014-09-11

Non-particulate organic porous material having optical resolution capability and method for manufacturing same

#74
20140250669
2014-09-11

Crosslinked cellulosic nanofiltration membranes

#75
20140087445
2014-03-27

Method of making ligand functionalized substrates

#76
20140037922
2014-02-06

Microporous material

#77
20140012034
2014-01-09

Cross-linked carbon nanotube networks

#78
20140004595
2014-01-02

Ligand graft functionalized substrates

#79
20130272935
2013-10-17

Method and apparatus for purging unwanted substances from air

#80
20130263738
2013-10-10

High temperature filter

#81
20130263736
2013-10-10

Silicone-based chemical filter and silicone-based chemical bath for removing sulfur contaminants

#82
20130192739
2013-08-01

Silicone-based chemical filter and silicone-based chemical bath for removing sulfur contaminants

#83
20120231242
2012-09-13

MICROPOROUS MATERIAL

#84
20120187046
2012-07-26

Silicone-based chemical filter and silicone-based chemical bath for removing sulfur contaminants

#85
20120160254
2012-06-28

CRYOTROPIC HYDROGELS AND THEIR USE AS FILTERS

#86
20120037560
2012-02-16

Porous block nanofiber composite filters

#87
20110259191
2011-10-27

Method and apparatus for purging unwanted substances from air

#88
20110256364
2011-10-20

Microporous material

#89
20110147302
2011-06-23

Oil/Water Separator

#90
20110114573
2011-05-19

Devices and Methods for Removing Contaminants and Other Elements, Compounds, and Species from Fluids

#91
20110034579
2011-02-10

POLYURETHANE FILTERS FOR AIR PURIFICATION

#92
20110033633
2011-02-10

Method of making ligand functionalized substrates

#93
20110011793
2011-01-20

Porous member

#94
20100294313
2010-11-25

USE OF MODIFIED OPEN-CELL FOAM MATERIALS IN VACUUM CLEANERS

#95
20100173107
2010-07-08

TUBE FILLED WITH AN OPEN-CELL MELAMINE/FORMALDEHYDE RESIN FOAM AND USE AS A FILTER OR STATIC MIXER

#96
20100162888
2010-07-01

MAT-SHAPED FOAM MATERIAL FOR CLEANING AND/OR FILTERING AIR

#97
20100125109
2010-05-20

Use of nanoporous polymer foams as filter materials

#98
20100075560
2010-03-25

Ligand graft functionalized substrates

#99
20100075131
2010-03-25

Ligand graft functionalized substrates

#100
20090301043
2009-12-10

Filter bag

#101
20090211963
2009-08-27

Particle Interceptor

#102
20090087641
2009-04-02

Porous nanosheath networks, method of making and uses thereof

#103
20090078643
2009-03-26

Low off-gassing polyurethanes

#104
20090078639
2009-03-26

Biofilter media and biofiltration apparatus employing same

#105
20080286166
2008-11-20

Filter element

#106
20080245736
2008-10-09

Crosslinked cellulosic nanofiltration membranes

#107
20080184684
2008-08-07

Multilayered long life filter using convoluted foam

#108
20080017036
2008-01-24

Absorbing agent, dust collection chamber and method for adsorbing odours

#109
20070155860
2007-07-05

Non-particulate organic porous material having optical resolution capability and method for manufacturing same

#110
20070095748
2007-05-03

Pore size controlled materials for wet/dry filtration

#111
20060266700
2006-11-30

Porous structures with engineered wettability properties and methods of making them

#112
20060201883
2006-09-14

Polymer matrixes having nanoscale channels and uses

#113
20050155927
2005-07-21

Non-particulate organic porous material having optical resolution capability and method for manufacturing same

#114
20050146063
2005-07-07

Aerator

#115
20050132886
2005-06-23

Air filter for removing particulate matter and volatile organic compounds

#116
20050123736
2005-06-09

Reticulated open cell filling material

#117
20050095178
2005-05-05

Filter element

#118
20050044826
2005-03-03

High volume air filter for computers and other electronic mechanisms

#119
18322060
2024-04-02

Filter for an air-conditioning system of a vehicle and a method of installing such a filter

#120
17164735
2021-11-23

Polyurethane-based materials