Patents-Review.com
ClassID:

28895 ⎘

B01D24/4636 - CPC Classification

Classification description:

Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof; Regenerating the filtering material in the filter; Counter-current flushing, e.g. by air with backwash shoes; with nozzles

Recent Application in this class:
#1
20260042038
2026-02-12

Portable Filter Cleaning System And Method Of Cleaning A Filter

 #2
20240252962
2024-08-01

Filter Apparatus

 #3
20240050875
2024-02-15

Portable Filter Cleaning System And Method Of Cleaning A Filter

 #4
20230321563
2023-10-12

Portable Pool Filter Cleaning System And Method Of Cleaning A Pool Filter

 #5
20230105431
2023-04-06

SUPPORT GRID ASSEMBLY FOR PRESSURE VESSEL

 #6
20230069293
2023-03-02

Environmentally friendly water intake and pretreatment system

 #7
20220402776
2022-12-22

Water filtration and aeration unit

 #8
20220370932
2022-11-24

Portable pool filter cleaning system and method of cleaning a pool filter

 #9
20220274035
2022-09-01

Automatic sand filter system controller

 #10
20220267167
2022-08-25

AUTOMATIC SAND FILTER BACKWASH CONTROLLER

 #11
20210354056
2021-11-18

SUPPORT GRID ASSEMBLY FOR PRESSURE VESSEL

 #12
20210229003
2021-07-29

Underdrain assembly and method of manufacturing same

 #13
20210188660
2021-06-24

Modular underdrain systems

 #14
20210031125
2021-02-04

INTEGRATED UNIT FOR INTAKE AND PRETREATMENT WITH LOCAL BACKWASHING

 #15
20200290891
2020-09-17

Modular underdrain systems

 #16
20200269163
2020-08-27

Filter apparatus and method

 #17
20200246728
2020-08-06

Underdrain assembly and method of manufacturing same

 #18
20200122060
2020-04-23

Fiber filtering apparatus

 #19
20200095150
2020-03-26

Automated waste water recycling system using advanced electro-coagulation unit

 #20
20200095149
2020-03-26

Automated waste water recycling system using advanced electro-coagulation unit

 #21
20200054970
2020-02-20

Integrated unit for intake and pretreatment with local backwashing

 #22
20190263677
2019-08-29

Environmentally friendly water intake and pretreatment system

 #23
20190217224
2019-07-18

Underdrain assembly and method of manufacturing same

 #24
20190118119
2019-04-25

Integrated unit for intake and pretreatment with local backwashing

 #25
20190083907
2019-03-21

INTEGRATED UNIT FOR INTAKE AND PRETREATMENT WITH LOCAL BACKWASHING

 #26
20190039000
2019-02-07

Underdrain system using one-piece cell dividers

 #27
20180339246
2018-11-29

Underdrain for a filter system for filtering water or wastewater and a method of washing a filter system

 #28
20180333660
2018-11-22

Filter media retainer and underdrain system having a filter media retainer

 #29
20180333659
2018-11-22

Self-cleaning, groutless, filter underdrain

 #30
20180296947
2018-10-18

Mechanical filter element, apparatus and method

 #31
20180214796
2018-08-02

Underdrain assembly and method of manufacturing same

 #32
20180133624
2018-05-17

Embedded influent diffuser for floating media filter

 #33
20180093231
2018-04-05

Apparatus and method for removing impurities from water or wastewater

 #34
20180056213
2018-03-01

Infiltration intake system for revetment wall

 #35
20180028945
2018-02-01

Fiber filtering apparatus

 #36
20170239595
2017-08-24

Underdrain assembly and method of manufacturing the same

 #37
20170204596
2017-07-20

Water treatment system

 #38
20170043282
2017-02-16

Embedded influent diffuser for floating media filter

 #39
20160354711
2016-12-08

Embedded Influent Diffuser for Floating Media Filter

 #40
20160339361
2016-11-24

WATER TREATMENT APPARATUS AND WATER TREATMENT METHOD USING THE SAME

 #41
20160193550
2016-07-07

Underdrain assembly and method of manufacturing the same

 #42
20160158672
2016-06-09

BIOFILM FILTRATION DEVICE AND BACKWASH METHOD FOR BIOFILM FILTRATION DEVICE

 #43
20150343336
2015-12-03

Sanitization and regeneration of porous filter media with ozone in backwash

 #44
20150314221
2015-11-05

CLEANING SYSTEM FOR SAND FILTRATION LAYER

 #45
20150034548
2015-02-05

System for treating water and/or wastewater having a plurality of laterals that can be readily cleaned without damaging or sacrificing the laterals

 #46
20150008195
2015-01-08

Method for washing a filter having at least two layers of filtering media, in particular for filtering seawater, and equipment for implementing said method

 #47
20140356066
2014-12-04

Underdrain assembly and method of manufacturing the same

 #48
20140332473
2014-11-13

Multistage filtrating pre-treatment for desalination of oilfield produced water

 #49
20140231356
2014-08-21

Water treatment apparatus incorporating walnut shell filter media and a draft tube system

 #50
20140190907
2014-07-10

Upper-layer cleaning device for water treatment device, and method for cleaning water treatment device filter layer

 #51
20140166593
2014-06-19

Gas-liquid distribution technique for water or wastewater filters using underdrains

 #52
20140097143
2014-04-10

Servo-controlled backwash filter system

 #53
20120292245
2012-11-22

Filtration media cleaning apparatus

 #54
20120037730
2012-02-16

Variable flow screen nozzle

 #55
20110174746
2011-07-21

Water Treatment Methods

 #56
20110163049
2011-07-07

Water filter apparatus incorporating walnut shell filter media and a draft tube system

 #57
20100102010
2010-04-29

Vortex generator for a fluid filter

 #58
20070125694
2007-06-07

Filtration device

 #59
20050127011
2005-06-16

Liquid filtration method embodying superbuoyant filtration particles

 #60
20050029204
2005-02-10

Liquid filtration apparatus embodying super-buoyant filtration particles

 #61
15359494
2019-09-10

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

 #62
15282550
2020-01-07

Continuous water filtration, disinfection and conservation system

 #63
12799856
2015-09-01

Method and apparatus for longitudinally disposed, sharp pulse of liquid