ClassID:

29406

B01D39/2062 - CPC Classification

Classification description:

Filtering material for liquid or gaseous fluids; Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires; Carbonaceous material the material being particulate Bonded, e.g. activated carbon blocks

Recent Application in this class:
#1
20260115637
2026-04-30

GAS TREATMENT APPARATUS FOR VENT

#2
20260098676
2026-04-09

REFRIGERATING APPLIANCE

#3
20250383097
2025-12-18

RANGE HOOD

#4
20250288928
2025-09-18

FILTER MATERIAL COMPRISING NANOFIBER LAYER AND FILTER ELEMENT COMPOSED OF SUCH FILTER MATERIAL

#5
20250207784
2025-06-26

COOKING APPLIANCE WITH A FILTER

#6
20250083080
2025-03-13

HYBRID METHOD FOR CARBON CAPTURE

#7
20250010240
2025-01-09

SYSTEM FOR CAPTURING AND REDIRECTING CARBON EMISSIONS TO A GREENHOUSE

#8
20250001397
2025-01-02

PORUS BLOCK ARTICLE

#9
20240151413
2024-05-09

AIR PURIFIER WITH FILTER RETAINER

#10
20230372851
2023-11-23

Solid carbon products comprising compressed carbon nanotubes in a container and methods of forming same

#11
20230339156
2023-10-26

Method for manufacturing carbon block filter

#12
20230242414
2023-08-03

WATER PURIFIER FILTER AND WATER PURIFIER COMPRISING SAME

#13
20230233970
2023-07-27

ACTIVATED CARBON-COMPOSITE MATERIALS, FILTERS, AND PREPARATION METHODS THEREOF

#14
20230227328
2023-07-20

WATER PURIFIER FILTER AND WATER PURIFIER COMPRISING SAME

#15
20230218463
2023-07-13

Containment, Treatment, and Removal of Aerosolized Viral Contamination

#16
20230137195
2023-05-04

A COMPRESSED AIR SYSTEM

#17
20230120229
2023-04-20

DEPTH FILTERS AND RELATED METHODS

#18
20230108396
2023-04-06

A PROCESS FOR SYNTHESIS OF CARBON BEADS

#19
20220356082
2022-11-10

Device for Removing Fats, Oils and/or Grease (FOGs) from Water

#20
20220347612
2022-11-03

Hybrid method for carbon capture

#21
20220242737
2022-08-04

Carbonaceous material, method for producing same, filter for water purification and water purifier

#22
20220134267
2022-05-05

Reusable exoskeleton frame with U-shaped locking members and eco-friendly air filter element

#23
20220111314
2022-04-14

A WATER FILTRATION DEVICE

#24
20220097493
2022-03-31

CABIN FILTER UNIT

#25
20220096981
2022-03-31

Pelletized activated carbon and methods of production

#26
20220032232
2022-02-03

Filter medium for separating nitrogen oxides

#27
20210252752
2021-08-19

Equipment for manufacturing carbon block filter and method for manufacturing carbon block filter

#28
20210198137
2021-07-01

Drinking water treatment system

#29
20210101129
2021-04-08

IMMOBILIZED MEDIA DEVICE WITH A THERMOPLASTIC POLYMER BINDER SYSTEM

#30
20210039028
2021-02-11

Filter reinforcing material and filter medium for deodorizing filter comprising same

#31
20210039026
2021-02-11

Treatment module and operating method therefor

#32
20210024421
2021-01-28

METHOD FOR REFINING METAL MELTS OR SLAGS

#33
20210001256
2021-01-07

Method for modifying surface of activated carbon and filter for water purifier

#34
20200406178
2020-12-31

PROCESS FOR FORMING POROUS FILTER MEDIA

#35
20200339437
2020-10-29

Eco-friendly water filtration apparatus

#36
20200261839
2020-08-20

FILTER ELEMENT WITH HONEYCOMB BODY FOR AIR CLEANING

#37
20200198992
2020-06-25

Water-purification cartridge and water purifier

#38
20200188825
2020-06-18

FILTER, FILTER ASSEMBLY, FILTER DEVICE AND WATER PURIFICATION SYSTEM

#39
20200078714
2020-03-12

Water treatment device

#40
20200047095
2020-02-13

Filtration system with rotating core driving thimble opening and closing water passage

#41
20190389740
2019-12-26

Water purifier filter, and water purifier comprising same

#42
20190345040
2019-11-14

Water-purification cartridge and water purifier

#43
20190240604
2019-08-08

Solid carbon products comprising compressed carbon nanotubes in a container and methods of forming same

#44
20190127238
2019-05-02

A PRODUCTION METHOD

#45
20190126178
2019-05-02

Filter and Method of Preparing the Same

#46
20190071356
2019-03-07

REACTIVE MATERIAL BASED ON CALCIUM ALUMINATE AND CARBON, ITS PROCESS OF PREPARATION AND ITS USES FOR REFINING METAL MELTS OR SLAGS

#47
20190001253
2019-01-03

Filter medium

#48
20180305228
2018-10-25

Filtration system and methods of using such system for improved water filtration

#49
20180280931
2018-10-04

Filter apparatus for the treatment of hydrocarbon contaminated water

#50
20180104670
2018-04-19

Porous article having polymer binder sub-micron particle

#51
20170334742
2017-11-23

MORINGA OLEIFERA AUGMENTED FILTER MEDIA

#52
20170259195
2017-09-14

Filter cartridge

#53
20170167421
2017-06-15

Engine control sysstem configured to adjust present operation pursuant to predicted duty cycle operating conditions

#54
20170136403
2017-05-18

FILTER ELEMENT AND MANUFACTURING METHOD THEREOF

#55
20160361675
2016-12-15

COMMODITY WATER PURIFIER

#56
20160121249
2016-05-05

BLOCK PRODUCTS INCORPORATING SMALL PARTICLE THERMOPLASTIC BINDERS AND METHODS OF MAKING SAME

#57
20150266751
2015-09-24

Water processing filter and manufacturing method therefor

#58
20150129484
2015-05-14

Vented filter cartridge for water treatment device

#59
20140190353
2014-07-10

Filter media with improved conductivity

#60
20130277299
2013-10-24

Composite blocks with void spaces

#61
20130118997
2013-05-16

Fluid purification media and cartridge

#62
20130056428
2013-03-07

Fluid purification media and systems and methods of using same

#63
20130032529
2013-02-07

RARE EARTH-CONTAINING FILTER BLOCK AND METHOD FOR MAKING AND USING THE SAME

#64
20130008006
2013-01-10

Formed filter element

#65
20120251414
2012-10-04

Porous bodies and methods

#66
20120167889
2012-07-05

Gas mask filter canister

#67
20120167769
2012-07-05

Respirator filter canister

#68
20120082603
2012-04-05

Porous bodies and methods

#69
20120079941
2012-04-05

Porous bodies and methods

#70
20120037560
2012-02-16

Porous block nanofiber composite filters

#71
20110284006
2011-11-24

Filter cartridge having central plenum and housing sidewall

#72
20110278243
2011-11-17

Fluid purification media and systems and methods of using same

#73
20110278242
2011-11-17

Fluid purification media and systems and methods of using same

#74
20110265312
2011-11-03

Filter media with improved conductivity

#75
20110229390
2011-09-22

Porous bodies and methods

#76
20110229389
2011-09-22

Porous bodies and methods

#77
20110203991
2011-08-25

Carbon block filter

#78
20110155661
2011-06-30

Water filter materials and water filters containing a mixture of microporous and mesoporous carbon particles

#79
20110089103
2011-04-21

Vented filter cartridge for water treatment device

#80
20110073551
2011-03-31

FILTER MODULES FOR IMPROVED MEDIA UTILIZATION AND USE IN GENERALLY CYLINDRICAL HOUSING

#81
20110042298
2011-02-24

Filter medium and water filtration system including the same

#82
20100307968
2010-12-09

ACTIVATED CARBON WATER FILTER WITH REDUCED LEACHABLE ARSENIC AND METHOD FOR MAKING THE SAME

#83
20100298124
2010-11-25

Porous bodies and methods

#84
20100219131
2010-09-02

Water purification apparatus and system

#85
20100212071
2010-08-26

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

#86
20100133106
2010-06-03

Porous bodies and methods

#87
20100051536
2010-03-04

FILTER INCLUDING MULTIPLE SPHERES

#88
20100006507
2010-01-14

Water treating methods

#89
20090308800
2009-12-17

Water filter materials and water filters containing a mixture of microporous and mesoporous carbon particles

#90
20090261032
2009-10-22

Filter element with active carbon coating

#91
20090230061
2009-09-17

Methods for treating water

#92
20090218292
2009-09-03

Methods of treating water

#93
20090218291
2009-09-03

Methods for treating water

#94
20090050578
2009-02-26

FORMED FILTER ELEMENT

#95
20090039028
2009-02-12

Liquid filtration systems

#96
20090031855
2009-02-05

Porous bodies and methods

#97
20090008323
2009-01-08

Water filter materials and water filters containing a mixture of microporous and mesoporous carbon particles

#98
20090001011
2009-01-01

Gravity flow filter

#99
20080223797
2008-09-18

FILTERS WITH IMPROVED MEDIA UTILIZATION AND METHODS OF MAKING AND USING SAME

#100
20080105611
2008-05-08

Filters having improved permeability and virus removal capabilities

#101
20080093310
2008-04-24

ANTI-MICROBIAL MEDIA AND METHODS FOR MAKING AND UTILIZING THE SAME

#102
20080053922
2008-03-06

NANOSTRUCTURED MATERIALS COMPRISING SUPPORT FIBERS COATED WITH METAL CONTAINING COMPOUNDS AND METHODS OF USING THE SAME

#103
20080026041
2008-01-31

NON-WOVEN MEDIA INCORPORATING ULTRAFINE OR NANOSIZE POWDERS

#104
20070267341
2007-11-22

Acid-neutralizing filter media

#105
20070251876
2007-11-01

Hybrid filter element and method

#106
20070241051
2007-10-18

Nanocrystal-containing filtration media

#107
20070240576
2007-10-18

Adsorptive filtering material with integrated particle-and/or aerosol-filtering function and use thereof

#108
20070199890
2007-08-30

Antimicrobial activated carbon and use thereof

#109
20070028767
2007-02-08

Filter media with improved conductivity

#110
20060207925
2006-09-21

Water purification apparatus and system

#111
20060163175
2006-07-27

Process and an apparatus for puritification of waste oil or re-refined oil from mineral or synthetic oil

#112
20060150599
2006-07-13

EMI-absorbing air filter

#113
20060032814
2006-02-16

Acid-neutralizing filter media

#114
20060029769
2006-02-09

Plugged honeycomb structure and method of manufacturing the same

#115
20050279696
2005-12-22

Water filter materials and water filters containing a mixture of microporous and mesoporous carbon particles

#116
20050247608
2005-11-10

Filters having improved permeability and virus removal capabilities

#117
20050211635
2005-09-29

Anti-microbial media and methods for making and utilizing the same

#118
20050160911
2005-07-28

Gas mask filter canister

#119
20050155665
2005-07-21

Respirator filter canisters and method of filling same

#120
20050132888
2005-06-23

Fuel tank venting system and an additional filter element therefor

#121
20050098495
2005-05-12

Purification materials and method of filtering using the same

#122
20050016917
2005-01-27

High efficiency filter material and composition

#123
20050004299
2005-01-06

Activated carbon filter

#124
18939596
2025-04-15

Cellulose based biodegradable absorptive filter and method of making

#125
18808127
2024-12-24

Method for making an adsorptive air filter

#126
18665929
2024-10-01

Biodegradable air filter from date palm and method of fabrication thereof

#127
14857769
2016-08-02

Commodity water purifier