ClassID:

30216

B01D2239/0672 - 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 welding

Recent Application in this class:
#1
20260138067
2026-05-21

FILTER ASSEMBLIES UTILIZING FULL CROSS-SECTION

#2
20250339799
2025-11-06

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

#3
20250325929
2025-10-23

FILTER MEDIA FOR WATER FILTRATION

#4
20250276263
2025-09-04

ULTRASONICALLY BONDED COMPOSITE MATERIALS

#5
20250090985
2025-03-20

ULTRASONICALLY BONDED ELECTRET FILTER MEDIA

#6
20240358100
2024-10-31

MASK AND METHOD FOR PRODUCING MASKS

#7
20240082609
2024-03-14

FILTRATION ELEMENT AND USES THEREOF

#8
20230405497
2023-12-21

Method and apparatus for producing a filter device

#9
20230337772
2023-10-26

METHOD AND TEXTILE USED FOR COLLECTING MICROPLASTICS FROM WATER

#10
20230330454
2023-10-19

METHOD FOR PRODUCING A RESPIRATORY PROTECTION MASK

#11
20230249010
2023-08-10

MASK AND MANUFACTURING METHOD THEREOF

#12
20230201637
2023-06-29

RESPIRATOR MASK

#13
20230086347
2023-03-23

REUSABLE RESPIRATION FILTERING MASK USING A FLUID FILTER WITH PERSISTENT ANTI-MICROBIAL PROPERTIES AND FLUID FILTER WITH PERSISTENT ANTI-MICROBIAL PROPERTIES.

#14
20220118386
2022-04-21

FILTER ASSEMBLIES UTILIZING FULL CROSS-SECTION

#15
20220080342
2022-03-17

FILTER MATERIAL USED FOR AUTOMOBILE AIR CONDITIONING AND CAPABLE OF FILTERING OUT VOLATILE ORGANIC COMPOUND (VOC) GAS, AND PROCESS THEREOF

#16
20220072457
2022-03-10

VACUUM CLEANER FILTER BAG HAVING IMPROVED WELD SEAM STRENGTH

#17
20210069622
2021-03-11

Eco-friendly air filter element having fixation slits and reusable exoskeleton frame

#18
20200346148
2020-11-05

Method for producing a filter medium, and a filter medium

#19
20190168143
2019-06-06

FILTER MEDIA WITH A MULTI-LAYER STRUCTURE

#20
20190143253
2019-05-16

Mask and Method for Manufacturing Same

#21
20190076767
2019-03-14

FILTER DEVICE AND METHOD MANUFACTURING THE SAME

#22
20180178150
2018-06-28

Method for producing a filter medium, and a filter medium

#23
20170128866
2017-05-11

Filter for molten polymer filtration

#24
20170036218
2017-02-09

SELF-SUPPORT ELECTROSTATIC FILTER AND A FILTERING DEVICE THEREOF

#25
20170036151
2017-02-09

Recirculation filter for an electronics enclosure

#26
20170016157
2017-01-19

Nonwoven fabric sheet, and extraction filter and extraction bag using the same

#27
20170007952
2017-01-12

Interlaced Filtration Barrier

#28
20170007950
2017-01-12

Interlaced filtration barrier

#29
20160184751
2016-06-30

Filter media with a multi-layer structure

#30
20150352469
2015-12-10

Method for producing composite filter tube and filter element made of multilayer metal mesh and metal powders

#31
20150211153
2015-07-30

Metal fiber web based filter

#32
20150157971
2015-06-11

Interlaced filtration barrier

#33
20140190353
2014-07-10

Filter media with improved conductivity

#34
20140144113
2014-05-29

Filter media with a multi-layer structure

#35
20130174736
2013-07-11

Waterproof and salt repellant media and filter

#36
20130112611
2013-05-09

Disc shaped filter element

#37
20110265312
2011-11-03

Filter media with improved conductivity

#38
20110259813
2011-10-27

Filter media with a multi-layer structure

#39
20110107732
2011-05-12

FILTER ELEMENTS

#40
20100206802
2010-08-19

WELDED STRUCTURE OF SYNTHETIC RESIN MESH, WOVEN FABRIC, KNITTED FABRIC, AND NON-WOVEN CLOTH; FUEL FILTER BODY; AND WELDING METHOD

#41
20090301308
2009-12-10

Filter Arrangement for Fuel Cell

#42
20090247970
2009-10-01

Enclosure ventilation filter and assembly method

#43
20080308497
2008-12-18

Filter Element

#44
20080148945
2008-06-26

Filter layer for an, in particular conical, honeycomb body for exhaust gas treatment, method for manufacturing the filter layer, honeycomb body and exhaust gas purification device

#45
20070289919
2007-12-20

Filter medium and method for preparing same

#46
20070090045
2007-04-26

Multidiameter wire cloth

#47
20070028767
2007-02-08

Filter media with improved conductivity