ClassID:

29404

B01D39/2055 - 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

Sub-classes:
Recent Application in this class:
#1
20260015236
2026-01-15

USES OF A CARBON PRODUCED FROM A METHOD FOR THE MATERIAL TREATMENT OF RAW MATERIALS

#2
20250388757
2025-12-25

KILN WITH ROTARY TUBE REACTOR FOR HYDROGEN TREATMENT AND ASSOCIATED METHODS

#3
20250367586
2025-12-04

HONEYCOMB FILTER

#4
20250367579
2025-12-04

FULLY SUBMERSED BLOCK STYLE PRIMARY WATER FILTER

#5
20250346503
2025-11-13

SYNERGISTIC GREEN SORPTION MEDIA FOR CYANOBACTERIAL TOXIN REMEDIATION

#6
20250327612
2025-10-23

SOLAR POWERED COOLER WITH WATER FILTRATION SYSTEM

#7
20250262578
2025-08-21

WATER FILTER ASSEMBLY AND METHOD FOR FLOW RECOVERY

#8
20250262572
2025-08-21

METHODS AND APPARATUS FOR REPLACEABLE WATER FILTRATION CARTRIDGE

#9
20250249430
2025-08-07

Water filter and medium therefor

#10
20250136365
2025-05-01

FOOD WASTE MANAGEMENT SYSTEM

#11
20250135381
2025-05-01

WATER FILTRATION APPARATUS

#12
20250082131
2025-03-13

PORTABLE KITCHEN VENTILATOR USED FOR POT BODY

#13
20250034047
2025-01-30

CERAMIC OBJECTS AND METHODS FOR MANUFACTURING THE SAME

#14
20250026666
2025-01-23

SYNERGISTIC GREEN SORPTION MEDIA FOR CYANOBACTERIAL TOXIN REMEDIATION

#15
20250025814
2025-01-23

INTERNAL PERFORMANCE MONITORING FOR WATER FILTER

#16
20240367079
2024-11-07

Water Filter and Medium Therefor

#17
20240367078
2024-11-07

A FILTER AND A METHOD OF MAKING A FILTER

#18
20240294396
2024-09-05

WATER TREATMENT SYSTEM

#19
20240278181
2024-08-22

WATER PURIFIER

#20
20240228698
2024-07-11

RENEWABLE AND SUSTAINABLE PROCESS FOR EXTRACTION OF PHA FROM MICROBIAL BIOMASS

#21
20240226849
2024-07-11

Preparation Method of High-Absorptivity Chitosan/Bamboo Activated Carbon Composite Aerogel

#22
20240131492
2024-04-25

Preparation Method of High-Absorptivity Chitosan/Bamboo Activated Carbon Composite Aerogel

#23
20240101457
2024-03-28

GREYWATER TREATMENT SYSTEMS

#24
20240076190
2024-03-07

Graphene Oxide Scaffold and Process of Making and Using Same

#25
20240075415
2024-03-07

Modular Graphene Oxide-Based Microbial Fuel Filter and Process of Making and Using Same

#26
20240075414
2024-03-07

Spacer Tool and Process of Making and Using Same

#27
20240066442
2024-02-29

REPLACEMENT FAUCET FILTER FOR FAUCET MOUNTED FILTER UNIT

#28
20240024809
2024-01-25

Porous Materials For Treating Contaminants

#29
20240019161
2024-01-18

AIR POLLUTION PREVENTION SYSTEM

#30
20230311045
2023-10-05

FILTER ELEMENT PAPER COMPONENT AND AIR FILTER MESH

#31
20230292826
2023-09-21

Personal Smoke Filter Device comprising a Pre-Filter

#32
20230233045
2023-07-27

VACUUM CLEANER FOR AIR POLLUTION PREVENTION

#33
20230173419
2023-06-08

Laser-induced graphene filters and methods of making and using same

#34
20230099596
2023-03-30

SYSTEM AND METHOD FOR A WEARABLE AIR FILTRATION DEVICE

#35
20230072618
2023-03-09

MULTI-LAYER, OIL-RESISTANT, ELECTRO-MECHANICAL SYNTHETIC HEPA MEDIA

#36
20230060091
2023-02-23

MYCOTOXIN REMOVAL FROM THE BUILT ENVIRONMENT

#37
20230041569
2023-02-09

METHOD FOR DRYING A SMOKE FILTER UNIT

#38
20220410054
2022-12-29

Smoke and dust treatment apparatus for welding

#39
20220338532
2022-10-27

Smoke filter apparatus

#40
20220323554
2022-10-13

POLYSACCHARIDE-PEPTIDE COMPLEX FOR LOWERING BLOOD SUGAR, BLOOD LIPID AND GLYCOSYLATED HEMOGLOBIN LEVELS, AND PREPARATION METHOD

#41
20220314042
2022-10-06

Personal Air Filter Utilizing Mechanical, Chemical and Electrostatic Filter Media

#42
20220268466
2022-08-25

Collapsible Smoke Containment Apparatus

#43
20220175185
2022-06-09

FILTER APPARATUS FOR A KITCHEN APPLIANCE AND KITCHEN APPLIANCE

#44
20220152520
2022-05-19

Apparatus and method for solvent recovery from drying process

#45
20220096979
2022-03-31

PREPARATION METHOD OF CARBON BLACK SYNTHETIC FILTER MATERIALS AND APPLICATION THEREOF

#46
20220088421
2022-03-24

Air Purification System

#47
20220073395
2022-03-10

Industrial wastewater treatment system and method for garment finishing, jeans and denim industry

#48
20220072345
2022-03-10

FACE MASK

#49
20220023828
2022-01-27

Electrostatic adsorption mask

#50
20220018109
2022-01-20

Nested Infiltration Surfaces, Treatment Media, and Distribution Media

#51
20210394118
2021-12-23

Method and device for water priming microporous-carbon water filters using negative pressure

#52
20210394103
2021-12-23

Apparatus and method for irradiating air in an air circulation system of a vehicle

#53
20210387126
2021-12-16

POROUS MATERIALS FOR TREATING CONTAMINANTS

#54
20210323836
2021-10-21

WATER DISPENSING AND FILTRATION SYSTEM

#55
20210301234
2021-09-30

PROCESS FOR THE PRODUCTION OF VODKA

#56
20210229008
2021-07-29

In situ filter rejuvenation system

#57
20210188050
2021-06-24

Gas detection and purification device

#58
20210171382
2021-06-10

SWRO and MCDI coupled seawater desalination device system with energy recovery

#59
20210164929
2021-06-03

GAS DETECTOR

#60
20210121824
2021-04-29

IMPROVED FILTER CORE STRUCTURE

#61
20210121803
2021-04-29

FILTER CORE WATER FLOW CHANNEL

#62
20210060463
2021-03-04

In situ rejuvenation of contaminated mechanical filtration medium

#63
20200353393
2020-11-12

Nucleic acid purification device and nucleic acid purification method

#64
20200325670
2020-10-15

Toilet odor elimination device

#65
20200238206
2020-07-30

METHOD OF MANUFACTURING A CARBON-BASED STRUCTURE USING LASER RADIATION AND CORRESPONDING DEVICE

#66
20200206667
2020-07-02

Adsorption/absorption filter media and method of making same

#67
20200189932
2020-06-18

Apparatus and method for filtering water

#68
20200156015
2020-05-21

CARBON NANOTUBE MEMBRANE

#69
20200123332
2020-04-23

Carbon fiber composite, a medium incorporating the carbon fiber composite, and a related method

#70
20200047095
2020-02-13

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

#71
20190382296
2019-12-19

Multi-stage medical sewage sterilization device and method based on graphene nano technologies

#72
20190381434
2019-12-19

CARBON FILM MANUFACTURING METHOD AND FILM MANUFACTURING METHOD

#73
20190366270
2019-12-05

Device and method for water priming microporous-carbon water filters using negative pressure

#74
20190359502
2019-11-28

BEAUTY WATER GENERATOR WITH HIGH PERFORMANCE FILTERING FUNCTION

#75
20190270652
2019-09-05

COMPOSITE FILTER CARTRIDGE

#76
20190233306
2019-08-01

Systems and methods for controlling waterborne pathogens

#77
20190211056
2019-07-11

METHOD FOR PURIFYING PROTEIN USING ACTIVATED CARBON

#78
20190168164
2019-06-06

Water purifier and water preparation method thereof

#79
20190070533
2019-03-07

Drinking water filtration device and filtration method based on graphene technologies

#80
20190009192
2019-01-10

Composite filter cartridge

#81
20180346609
2018-12-06

Alkylated cyclodextrin compositions and processes for preparing and using the same

#82
20180264481
2018-09-20

Fine particulate compositions comprising non-composted coconut coir pith and process for their preparation

#83
20180237301
2018-08-23

Carbon nanotube laminates

#84
20180216868
2018-08-02

Liquid dispenser

#85
20180057646
2018-03-01

Carbon fiber composite, a medium incorporating the carbon fiber composite, and a related method

#86
20170313741
2017-11-02

Activated carbon for the removal of leachables and/or extractables

#87
20170259211
2017-09-14

REVERSE OSMOSIS FILTRATION SYSTEM WITHOUT PRESSURE TANKS

#88
20170189847
2017-07-06

Vehicular air filter providing high efficiency particle and gas filtration

#89
20170151516
2017-06-01

Method for manufacturing porous graphene filter, porous graphene filter manufactured using same, and filter apparatus using porous graphene filter

#90
20170110857
2017-04-20

Apparatus for Collecting and Filtering Arc By-Products

#91
20160288024
2016-10-06

Filter cartridge

#92
20150217219
2015-08-06

Processes for forming composite structures with a two-dimensional material using a porous, non-sacrificial supporting layer

#93
20150111449
2015-04-23

Method for preparing graphene oxide films and fibers

#94
20150093293
2015-04-02

System for purifying air having a catalyst filter

#95
20140154464
2014-06-05

GRAPHENE MEMBRANE WITH SIZE-TUNABLE NANOSCALE PORES

#96
20140138302
2014-05-22

Water treatment cartridge

#97
20140131923
2014-05-15

Method and apparatus for use in manufacturing a filter element

#98
20140044756
2014-02-13

Multilayer nanofiber filter

#99
20140008290
2014-01-09

Filtration filter and production method therefor

#100
20130206698
2013-08-15

Filter having spiral-shaped distributor channels

#101
20120292247
2012-11-22

Complex filter and water purifier including complex filter

#102
20120234694
2012-09-20

Electrochemical carbon nanotube filter and method

#103
20120160747
2012-06-28

Method and Device for Marking Objects, Particularly Components of a Motor Vehicle, with an Embossed Hologram and Objects Marked in this Way

#104
20120085695
2012-04-12

Carbon nanotube wetlaid depth media

#105
20110272343
2011-11-10

Cardiopulmonary bypass circuit including a filtration device

#106
20110265656
2011-11-03

Method and apparatus for air purification

#107
20110201041
2011-08-18

Encapsulation of nano-materials for fluid purification/separation

#108
20110155661
2011-06-30

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

#109
20110146697
2011-06-23

Method and apparatus for the plasma processing of filter material

#110
20110129603
2011-06-02

Air-permeable filtration media, methods of manufacture and methods of use

#111
20110114555
2011-05-19

FILTRATION MEDIA

#112
20110005394
2011-01-13

MEDIA FOR REMOVAL OF ORGANIC COMPOUNDS

#113
20100307119
2010-12-09

Multilayer nanofiber filter

#114
20100050872
2010-03-04

FILTER AND METHODS OF MAKING AND USING THE SAME

#115
20100040861
2010-02-18

Ordered Mesoporous Free-Standing Carbon Films And Form Factors

#116
20100024643
2010-02-04

COATING PROCESS AND COATED PRODUCT

#117
20100011720
2010-01-21

Apparatus and system for filtering air

#118
20090308800
2009-12-17

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

#119
20090218292
2009-09-03

Methods of treating water

#120
20090121182
2009-05-14

CARBON NANOTUBE FOAM AND METHOD OF MAKING AND USING THEREOF

#121
20090084726
2009-04-02

MULTI-FUNCTIONAL DUAL FILTERING KETTLE

#122
20090008323
2009-01-08

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

#123
20080292842
2008-11-27

Carbon Fiber Substrate and Method for Forming the Same

#124
20080274312
2008-11-06

Bag house filters and media

#125
20080271605
2008-11-06

Air-permeable filtration media and related systems

#126
20080251446
2008-10-16

"PRE-FILLED AND SEALED FILTER BAG"

#127
20080093310
2008-04-24

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

#128
20080053051
2008-03-06

Method of producing heat-resistant inorganic textile and heat-resistant inorganic textile produced using the method

#129
20080017036
2008-01-24

Absorbing agent, dust collection chamber and method for adsorbing odours

#130
20070295667
2007-12-27

Water filter apparatus and methodology

#131
20070267014
2007-11-22

Sterilizing facemask with a multi-layer filter

#132
20070267013
2007-11-22

Sterilizing facemask with a multi-layer filter

#133
20070241051
2007-10-18

Nanocrystal-containing filtration media

#134
20070240576
2007-10-18

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

#135
20070096372
2007-05-03

Method of manufacturing melt blown carbon fiber filter element and apparatus used therein

#136
20070039858
2007-02-22

Nanocarpets for trapping particulates, bacteria and spores

#137
20070004301
2007-01-04

Textile composite material comprising activated carbon fibres and production thereof

#138
20060207925
2006-09-21

Water purification apparatus and system

#139
20060196818
2006-09-07

Filter for filtering mutagens from an engine oil

#140
20060191416
2006-08-31

Vacuum cleaner and dust bag for vacuum cleaner

#141
20060151382
2006-07-13

Contact devices with nanostructured materials

#142
20060150599
2006-07-13

EMI-absorbing air filter

#143
20060137529
2006-06-29

Vacuum filter bag with odor removing effect

#144
20060073089
2006-04-06

Carbon nanotube foam and method of making and using thereof

#145
20060054023
2006-03-16

Air-permeable filtration media, methods of manufacture and methods of use

#146
20060027499
2006-02-09

Carbon nanotube filter

#147
20050279696
2005-12-22

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

#148
20050263453
2005-12-01

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

#149
20050258093
2005-11-24

Antimicrobial activated carbon and method of making

#150
20050252379
2005-11-17

Adsorption filter material and its use

#151
20050221089
2005-10-06

Filtration media comprising granules of binder-agglomerated active component

#152
20050211642
2005-09-29

Filtering medium and use of the said filtering medium for pollution removal from lagoons

#153
20050211635
2005-09-29

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

#154
20050167358
2005-08-04

Carbon Block Filters

#155
20050163689
2005-07-28

Filter elements

#156
20050148268
2005-07-07

Non-woven composite fabric and product made therefrom

#157
20050126395
2005-06-16

Filter element

#158
20050098495
2005-05-12

Purification materials and method of filtering using the same

#159
20050075238
2005-04-07

Activated carbon mesh fiber matrix embedded with lithium hydroxide and zeolite crystals

#160
16546611
2020-07-14

Aquarium filter housing unit

#161
15401838
2017-12-05

Exhaust gas clean-up system for fossil fuel fired power plant

#162
14606359
2017-10-31

Cigarette smoke-filtering device