ClassID:

29388

B01D39/20 - 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

Sub-classes:
Recent Application in this class:
#1
20250326670
2025-10-23

SELF-CONTAINED HEXAVALENT CHROMIUM PRECIPITATION AND FILTRATION SYSTEM

#2
20250282697
2025-09-11

METHOD FOR PRODUCING HYDROCARBON AND METHOD FOR PRODUCING SILICON CARBIDE

#3
20240280038
2024-08-22

Particulate filter

#4
20240262732
2024-08-08

CLEAN WATER EXTRACTION AND PURIFICATION SYSTEM AND METHOD

#5
20240173658
2024-05-30

HYDROCARBON FLUID-WATER SEPARATION

#6
20240157294
2024-05-16

COMPACT, MICROCOMPOSITE GAS FILTER

#7
20240066448
2024-02-29

Activated hemp filters and method of making activated hemp filters

#8
20240018462
2024-01-18

METALLIC POROUS MEMBRANE, CLASSIFYING METHOD USING THE SAME, AND CLASSIFYING DEVICE

#9
20240001271
2024-01-04

Particulate Filter Having A Centralized-Distributed Functional Material Layer And Process For Preparing The Same

#10
20230414958
2023-12-28

PLASMA TREATMENT APPARATUS

#11
20230356152
2023-11-09

AIR FILTER MEDIUM, FILTER PLEAT PACK, AND AIR FILTER UNIT

#12
20230311023
2023-10-05

RAW MATERIAL SUPPLY DEVICE AND RAW MATERIAL SUPPLY METHOD

#13
20230285879
2023-09-14

Micro-machined filter for magnetic particles

#14
20230173423
2023-06-08

USE OF PHOTOTHERMAL AGENTS IN AIR FILTERS

#15
20230016077
2023-01-19

Scavenged pre-chamber using oxygen generated by a molecular sieve process

#16
20220340466
2022-10-27

Laundry Wastewater Treatment Methods and Systems

#17
20220220059
2022-07-14

PROCESS FOR CRYSTALLIZATION OF HIGH PURITY LUTEIN ESTERS FROM MARIGOLD EXTRACTS

#18
20220186162
2022-06-16

METHOD AND SYSTEM FOR THE FILTRATION AND STABILIZATION OF ULTRA-HIGH GRAVITY ALCOHOLIC BEVERAGES

#19
20220176285
2022-06-09

FILTRATION FILTER

#20
20220152536
2022-05-19

Hydrocarbon fluid-water separation

#21
20210387119
2021-12-16

FILTRATION FILTER, FILTER-EQUIPPED CONTAINER, AND METHOD FOR REMOVING FOREIGN MATTER IN CELL SUSPENSION

#22
20210339175
2021-11-04

Activated hemp filters and method of making activated hemp filters

#23
20210146286
2021-05-20

Planar filtering device with differently sized through holes

#24
20210106933
2021-04-15

Micro-machined filter for magnetic particles

#25
20210071132
2021-03-11

METALLIC POROUS MEMBRANE, CLASSIFYING METHOD USING THE SAME, AND CLASSIFYING DEVICE

#26
20200346144
2020-11-05

FILTRATION FILTER AND FILTRATION DEVICE

#27
20200086246
2020-03-19

Micro-machined filter for magnetic particles

#28
20200030730
2020-01-30

Honeycomb filter

#29
20200001267
2020-01-02

Ultra-high performance and high purify biogenic silica filtration media

#30
20190344204
2019-11-14

Filter medium for air filter, filter pack, air filter unit and method for producing the filter medium for air filter

#31
20190314745
2019-10-17

Hydrocarbon fluid-water separation

#32
20190270042
2019-09-05

Ceramic foam filter and manufacturing method thereof

#33
20190224606
2019-07-25

Honeycomb structural body, method for manufacturing the same, and exhaust gas purification filter

#34
20190185804
2019-06-20

Cell filtration filter

#35
20190184187
2019-06-20

Plasma treatment apparatus

#36
20190073406
2019-03-07

Processing of computer log messages for visualization and retrieval

#37
20190071954
2019-03-07

Perforated pipe system and method of use

#38
20190063027
2019-02-28

Mobile microalgae harvesting

#39
20180362917
2018-12-20

Metallic porous membrane, classifying method using the same, and classifying device

#40
20180257008
2018-09-13

Method for thickening a cryogenic slurry using a cross-flow filter

#41
20180243672
2018-08-30

Filter with adjacent, similarly-shaped, differently-sized, through holes and through-hole clusters

#42
20180237315
2018-08-23

Portable water-purifying pouch

#43
20180200656
2018-07-19

Anti-corrosion fluid filter system

#44
20180126311
2018-05-10

Three dimensional nanometer filters and methods of use

#45
20170326539
2017-11-16

Honeycomb structure

#46
20170197169
2017-07-13

Honeycomb filter

#47
20170197168
2017-07-13

Honeycomb filter

#48
20170182468
2017-06-29

Tangential filter with a supporting element including a set of channels

#49
20170136443
2017-05-18

Filament web type precursor fabric for activated carbon fiber fabric and method for preparing same

#50
20170028474
2017-02-02

Method for manufacturing micropore filter

#51
20170002205
2017-01-05

Circumferential coating material and circumferentially coated honeycomb structure

#52
20160281280
2016-09-29

FIBER STRUCTURE, AND BIOCHIP, SUBSTRATE FOR CELL CULTURE AND FILTER, EACH OF WHICH USES SAID FIBER STRUCTURE

#53
20160221883
2016-08-04

Sintered porous material and filter element using same

#54
20160220933
2016-08-04

Sintered Fe—Al based porous alloy material with high-temperature oxidization resistance and filtering elements

#55
20160001259
2016-01-07

MATERIAL FOR TRAPPING TARGET SUBSTANCE, FILTER FOR TRAPPING TARGET SUBSTANCE, CONTAINER FOR LIQUID ORGANIC COMPOUND, AND ENGINE OIL

#56
20150059305
2015-03-05

Honeycomb filter and method for producing honeycomb filter

#57
20140370233
2014-12-18

Porous material and honeycomb structure

#58
20140319714
2014-10-30

Green honeycomb molding defect examination method, green honeycomb structure manufacturing method, and green honeycomb molding defect examination device

#59
20140311112
2014-10-23

Sealed honeycomb structure

#60
20140248464
2014-09-04

Ceramic honeycomb structure and its production method

#61
20140047807
2014-02-20

Filter for a fluid-conducting pipe

#62
20130341281
2013-12-26

Surface modified ceramic filter

#63
20130305673
2013-11-21

Porous Metal Body of Sintered Metal Powders and Metal Fibers

#64
20130133313
2013-05-30

Diesel particulate filters having a washcoat that improves filter performance

#65
20130101808
2013-04-25

ARCHITECTURAL CONSTRUCT HAVING A PLURALITY OF IMPLEMENTATIONS

#66
20130064979
2013-03-14

Methods for manufacturing architectural constructs

#67
20120312731
2012-12-13

MATERIAL FOR TRAPPING TARGET SUBSTANCE, FILTER FOR TRAPPING TARGET SUBSTANCE, CONTAINER FOR LIQUID ORGANIC COMPOUND, AND ENGINE OIL

#68
20110127213
2011-06-02

Process for producing a filter, in particular for a rotary separator

#69
20100146922
2010-06-17

Wound Wire Filter Elements

#70
20090133810
2009-05-28

Production method and filter comprising non woven fabric and/or filtering injector structures or sheets which are obtained using said method and which are intended for the filtration and elimination of legionella pneumophila in any installation at risk from legionella pneumophila proliferation

#71
20090071293
2009-03-19

Filter device for molten metal filtration and method for producing such filters

#72
20080203021
2008-08-28

Separation

#73
20080164195
2008-07-10

Prefilter system for biological systems

#74
20070202770
2007-08-30

Production Method and Filter Comprising Non Woven Fabric and/or Filtering Injector Structures or Sheets Which are Obtained Using Said Method and Which are Intended for the Filtration and Which are Intended for the Filtration and Elimination of Legionella Pneumofila in any Installation at Risk From Legionella Pneumofila Proliferation

#75
20070068870
2007-03-29

Separation

#76
20070021021
2007-01-25

High performance filter media with internal nanofiber structure and manufacturing methodology

#77
20060272499
2006-12-07

Gas filtration media

#78
20050205489
2005-09-22

Prefilter system for biological systems

#79
20050196586
2005-09-08

Enhanced porous ceramic article and method of manufacturing the same

#80
20050163689
2005-07-28

Filter elements

#81
20050026526
2005-02-03

High performance filter media with internal nanofiber structure and manufacturing methodology

#82
15841078
2020-03-24

Gas permeable hydrophobic material

#83
14701528
2018-01-09

Three dimensional nanometer filters and methods of use