ClassID:

28839

B01D24/001 - CPC Classification

Classification description:

Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof Making filter elements not provided for elsewhere

Recent Application in this class:
#1
20260151717
2026-06-04

BIOCHAR MATERIALS FOR ABATEMENT OF POLLUTANTS

#2
20260138055
2026-05-21

Method and System for Anchoring an Underdrain

#3
20260054205
2026-02-26

COMPOSITE FOR CHEMICAL FILTER, PREPARING METHOD THEREOF, AND OUTDOOR AIR CONDITIONER INCLUDING THE SAME

#4
20250296020
2025-09-25

MODULAR FILTER SYSTEM

#5
20250186908
2025-06-12

MEDIA RETENTION PLATE FOR A BLOCK UNDERDRAIN SYSTEM

#6
20240335770
2024-10-10

Media retention plate for a block underdrain system

#7
20240307804
2024-09-19

KINETIC FILTRATION DEVICE

#8
20240286067
2024-08-29

PURIFICATION OF OIL

#9
20240091677
2024-03-21

METHOD FOR MANUFACTURING FILTER PLATES WASTEWATER FILTER ASSEMBLIES

#10
20230105431
2023-04-06

SUPPORT GRID ASSEMBLY FOR PRESSURE VESSEL

#11
20220167664
2022-06-02

CIGARETTES AND CIGARETTE FILTERS INCLUDING ACTIVATED CARBON FOR REMOVING NITRIC OXIDE

#12
20210370200
2021-12-02

WATER TREATMENT DEVICE CONSTRUCTION STRUCTURE HAVING GRATING ROOM AND METHOD FOR CONSTRUCTING VARIOUS WATER SPACES/WATERSCAPING FACILITIES HAVING SAME COUPLED THERETO

#13
20210354056
2021-11-18

SUPPORT GRID ASSEMBLY FOR PRESSURE VESSEL

#14
20210138375
2021-05-13

Modular filtration system and method

#15
20200179828
2020-06-11

SECONDARY TUBULAR COMPOSITE FILTER SOCK SEAM FILLING DEVICE AND METHOD OF USING SAME AND COMPOSITE FILTER SOCK ASSEMBLY INCORPORATING A SEAM FILLING DEVICE

#16
20200016517
2020-01-16

APPARATUS FOR REMOVING IMPURITIES FROM WATER OR WASTEWATER AND A METHOD OF INSTALLING A FLUID DISTRIBUTION SYSTEM THEREIN

#17
20190388806
2019-12-26

Method of forming a compost filter sock

#18
20190209962
2019-07-11

Cartridge for airflow scrubbing systems and methods of manufacture thereof

#19
20190110516
2019-04-18

Cigarettes and cigarette filters including activated carbon for removing nitric oxide

#20
20180333659
2018-11-22

Self-cleaning, groutless, filter underdrain

#21
20180296947
2018-10-18

Mechanical filter element, apparatus and method

#22
20180272254
2018-09-27

Secondary tubular composite filter sock seam filling device and method of using same and composite filter sock assembly incorporating a seam filling device

#23
20180071661
2018-03-15

Filter bag sealing method and a filter bag sealed therewith

#24
20170304748
2017-10-26

Apparatus for removing impurities from water or wastewater

#25
20170296945
2017-10-19

Grout bridge for filter underdrain blocks

#26
20160236117
2016-08-18

Liquid filter device

#27
20160121240
2016-05-05

Wall adaptor for filter underdrain

#28
20150343335
2015-12-03

Apparatus for securing underdrain filter block

#29
20150266751
2015-09-24

Water processing filter and manufacturing method therefor

#30
20150190737
2015-07-09

Grout support installation method for filter underdrain system

#31
20150101980
2015-04-16

Household water filter element for removing radioactive substances

#32
20150068989
2015-03-12

Apparatus for removing impurities from water or wastewater and a method of installing a fluid distribution system therein

#33
20150068988
2015-03-12

Method for washing a filter for filtering water or wastewater

#34
20150033788
2015-02-05

Receiver dryer, method of manufacturing receiver dryer and air-conditioning system

#35
20140084518
2014-03-27

Method of making a filter media with an enriched binder

#36
20130255051
2013-10-03

Assembly machine for disposable syringe-driven filter

#37
20130062275
2013-03-14

PROCESS FOR PRODUCTION OF HONEYCOMB STRUCTURE, HONEYCOMB STRUCTURE, AND PARTICULATE FILTER

#38
20130032516
2013-02-07

Unitary filter tank and an underdrain for filtering a body of water

#39
20120111777
2012-05-10

Method of installing an air scour system into a filter bed

#40
20120105622
2012-05-03

Coffee filter qualification apparatus and methodology

#41
20110210062
2011-09-01

Method of making a filter media with an enriched binder

#42
20110174719
2011-07-21

Underdrain filter block including a grout chamber

#43
20100260644
2010-10-14

System for purifying air through germicidal irradiation and method of manufacture

#44
20070023346
2007-02-01

Filter having a filter layer that forms a protective barrier to prevent clogging of a gravel-less underdrain and method of making the same

#45
20060201524
2006-09-14

Cigarettes and cigarette filters including activated carbon for removing nitric oxide

#46
20050133434
2005-06-23

Underdrain apparatus and method of manufacturing same

#47
20050109706
2005-05-26

Filter underdrain system for backwash flow and method for measuring same

#48
19241332
2025-12-09

Method of making a filter with ground animal bone granules and filtering therewith

#49
15684486
2020-03-17

Filtration gels and related processes

#50
15359494
2019-09-10

Modular distribution and collection assemblies, filter assemblies, and related methods

#51
14622823
2017-04-18

Coffee filter fabrication method

#52
14545417
2018-08-21

Method and apparatus for filtering stormwater

#53
13080651
2019-07-16

Espresso filter including hole uniformity enhancement region