ClassID:

30843

B01D2321/12 - CPC Classification

Classification description:

Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling Use of permeate

Recent Application in this class:
#1
20260138093
2026-05-21

DIRECT WATER PURIFICATION SYSTEM WITH AUTOMATIC BACKWASH FUNCTION

#2
20260097365
2026-04-09

WATER PURIFIER

#3
20260091356
2026-04-02

SYSTEMS AND METHODS FOR EXTENDING WATER FILTRATION MEMBRANE LIFETIME IN SELF-MEDIATED SALTLESS WHOLE HOME WATER TREATMENT SYSTEMS

#4
20250387756
2025-12-25

CONTROL METHOD FOR RO SYSTEM, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM

#5
20250360464
2025-11-27

METHOD OF FILTERING SOLIDS FROM A SOLUTION DERIVED FROM PLASMA

#6
20250332548
2025-10-30

METHOD FOR OPERATING MEMBRANE FILTRATION UNIT AND MEMBRANE FILTRATION UNIT

#7
20250281883
2025-09-11

MULTISTAGE CROSS-FLOW MEMBRANE FILTRATION SYSTEM AND A METHOD FOR CLEANING SUCH A SYSTEM

#8
20250269330
2025-08-28

ADAPTIVE CLEANING-IN-PLACE METHOD FOR A MEMBRANE FILTRATION SYSTEM

#9
20250122103
2025-04-17

Fluid Purification Methods, Devices, and Systems

#10
20250032993
2025-01-30

FORWARD OSMOTIC AND WATER HAMMER METHOD OF MEMBRANE CLEANING

#11
20250025839
2025-01-23

A METHOD FOR USE IN CLEANING A PROCESSING SYSTEM AND A PROCESSING SYSTEM

#12
20240352065
2024-10-24

IMPROVED PROTEIN SORPTION AND FILTRATION APPARATUS

#13
20240335776
2024-10-10

FILTRATION SYSTEM AND METHOD

#14
20240278181
2024-08-22

WATER PURIFIER

#15
20240217855
2024-07-04

SELF-MEDIATED SALTLESS WHOLE HOME WATER TREATMENT SYSTEMS AND METHODS

#16
20240166534
2024-05-23

METHOD OF USING NANOFILTRATION AND REVERSE OSMOSIS TO REMOVE CHEMICAL CONTAMINANTS

#17
20240042388
2024-02-08

LIQUID PURIFICATION SYSTEM

#18
20230390706
2023-12-07

WATER TREATMENT DEVICE AND ESTIMATION METHOD

#19
20230285903
2023-09-14

METHOD FOR OPERATING DESALTING DEVICE

#20
20230277983
2023-09-07

Membrane gas separator with a built-in valve and the method of its opening and closing

#21
20230182080
2023-06-15

HIGH RECOVERY INTEGRATED UF/RO SYSTEM

#22
20230109082
2023-04-06

Method of using nanofiltration and reverse osmosis to remove chemical contaminants

#23
20230074110
2023-03-09

LIQUID PURIFICATION SYSTEM

#24
20220331725
2022-10-20

FILTRATION SYSTEM AND METHOD

#25
20220331724
2022-10-20

Filtration system with selective flow reversal

#26
20220176323
2022-06-09

Apparatus and a method for using permeate to flush a reverse osmosis filter

#27
20220111336
2022-04-14

Membrane filtration device and method for cleaning membrane filtration device

#28
20220032234
2022-02-03

METHOD FOR OPERATING MEMBRANE FILTRATION UNIT AND MEMBRANE FILTRATION UNIT

#29
20210395124
2021-12-23

Membrane separation pretreatment apparatus including underwater plasma discharge unit

#30
20210370234
2021-12-02

System for treating tetraalkylammonium hydroxide-containing liquid and method for treating same

#31
20210339204
2021-11-04

Apparatus for using permeate to flush a reverse osmosis filter

#32
20210268440
2021-09-02

DIRECT WATER PURIFIER

#33
20210268439
2021-09-02

Method of using nanofiltration and reverse osmosis to remove chemical contaminants

#34
20210261900
2021-08-26

System for Filtration and Associated Method Thereof

#35
20210260533
2021-08-26

Method for fouling reduction on the surface of ceramic membranes using steam fast-flushing

#36
20210214244
2021-07-15

Containerized desalination system

#37
20210163320
2021-06-03

Fluid purification methods, devices, and systems

#38
20210138406
2021-05-13

Method and apparatus for forward and reverse flushable filter system

#39
20210069647
2021-03-11

Filtration device

#40
20210053014
2021-02-25

MEMBRANE CLEANING DEVICE AND MEMBRANE CLEANING METHOD

#41
20210047207
2021-02-18

Device and method for purifying drinking water

#42
20210024382
2021-01-28

Water treatment system

#43
20210008265
2021-01-14

Adaptive system for blood fluid removal

#44
20200331777
2020-10-22

Method for treating produced water

#45
20200197872
2020-06-25

Water treatment membrane washing apparatus and water treatment membrane washing method

#46
20200047126
2020-02-13

High recovery integrated UF/RO system

#47
20200038812
2020-02-06

DEVICE AND METHOD FOR WATER FILTRATION USING DISCARDED DIALYZERS

#48
20190262747
2019-08-29

Water purifying system and backwash module control method thereof

#49
20190168164
2019-06-06

Water purifier and water preparation method thereof

#50
20190092660
2019-03-28

Fluid purification methods, devices, and systems

#51
20190015786
2019-01-17

Hollow fiber membrane module and method for operating same

#52
20190001277
2019-01-03

METHOD AND APPARATUS FOR TREATING COMMERCIAL AND INDUSTRIAL LAUNDRY WASTEWATER

#53
20180361324
2018-12-20

Forward osmotic and water hammer method of membrane cleaning

#54
20180312412
2018-11-01

Containerized desalination system

#55
20180304205
2018-10-25

Forward osmotic and water hammer method of membrane cleaning

#56
20180304204
2018-10-25

SYSTEM FOR OPERATING A CERAMIC MEMBRANE AND RELATED METHODS

#57
20180155218
2018-06-07

Osmotic separation systems and methods

#58
20180098704
2018-04-12

Method and device to monitor patients with kidney disease

#59
20180016173
2018-01-18

Chemical free and energy efficient desalination system

#60
20170361006
2017-12-21

Adaptive system for blood fluid removal

#61
20170216777
2017-08-03

Method and apparatus for cleaning filter membrane, and water treatment system

#62
20170216776
2017-08-03

Forward osmotic and water hammer method of membrane cleaning

#63
20170174528
2017-06-22

WATER PURIFIER

#64
20170113167
2017-04-27

Water purifying system and backwash module control method thereof

#65
20170100529
2017-04-13

Precision blood fluid removal therapy based on patient monitoring

#66
20170001887
2017-01-05

Fluid purification methods, devices, and systems

#67
20160340214
2016-11-24

Fluid purification methods, devices, and systems

#68
20160272512
2016-09-22

Water purification device

#69
20160206801
2016-07-21

Blood fluid removal system performance monitoring

#70
20160200597
2016-07-14

Hyperfiltration system suitable for household use

#71
20150367054
2015-12-24

Electrolyte and pH monitoring for fluid removal processes

#72
20150352269
2015-12-10

Electrolyte and pH monitoring for fluid removal processes

#73
20150344340
2015-12-03

Chemical free and energy efficient desalination system

#74
20150321934
2015-11-12

WATER PRODUCTION METHOD

#75
20150151033
2015-06-04

Fluid volume monitoring for patients with renal disease

#76
20150088047
2015-03-26

Monitoring fluid volume for patients with renal disease

#77
20150080682
2015-03-19

Monitoring fluid volume for patients with renal disease

#78
20140299532
2014-10-09

Filtration with internal fouling control

#79
20140190877
2014-07-10

Electricity-free water purification installation with a membrane filter and a system of automatic backwashing of the filter

#80
20140088442
2014-03-27

Method and device to monitor patients with kidney disease

#81
20130313190
2013-11-28

Chemical free and energy efficient desalination system

#82
20130274642
2013-10-17

Multimodal dialysis system

#83
20120277722
2012-11-01

Adaptive system for blood fluid removal

#84
20120277655
2012-11-01

Fluid volume monitoring for patients with renal disease

#85
20120277650
2012-11-01

Cardiovascular monitoring for fluid removal processes

#86
20120277604
2012-11-01

Monitoring fluid volume for patients with renal disease

#87
20120277552
2012-11-01

Chronic pH or electrolyte monitoring

#88
20120277551
2012-11-01

Intersession monitoring for blood fluid removal therapy

#89
20120273420
2012-11-01

Electrolyte and pH monitoring for fluid removal processes

#90
20120273415
2012-11-01

Blood fluid removal system performance monitoring

#91
20120211418
2012-08-23

Slurry Concentration System and Method

#92
20110290723
2011-12-01

METHOD AND PLANT FOR MANAGING THE CLOGGING OF MEMBRANE MODULES AND FILTRATION MEMBRANES

#93
20110094964
2011-04-28

MEMBRANE FILTER FOR WATER TREATMENT

#94
20100224558
2010-09-09

Water Filtration System

#95
20100219130
2010-09-02

System and Method of Fluid Filtration Utilizing Cross-Flow Currents

#96
20100200505
2010-08-12

MEMBRANE FILTER FOR WATER TREATMENT

#97
20090314712
2009-12-24

MEMBRANE FILTRATION OF A PRODUCT

#98
20090255873
2009-10-15

LOW PRESSURE BACKWASH

#99
20090223895
2009-09-10

Method of cleaning membrane modules

#100
20090152198
2009-06-18

MEMBRANE FILTER FOR WATER TREATMENT

#101
20090120873
2009-05-14

Filtration with internal fouling control

#102
20090107916
2009-04-30

MODULE CLEANING METHOD

#103
20090057222
2009-03-05

MEMBRANE CARD AND METHOD FOR THE PRODUCTION AND USE THEREOF

#104
20090050555
2009-02-26

Permselective membrane module and method for manufacturing the same

#105
20080257822
2008-10-23

Reduced Backwash Volume Process

#106
20080203005
2008-08-28

Water filter device for use with individual containers

#107
20080179244
2008-07-31

DRAIN-FLUSH SEQUENCE AND SYSTEM FOR FILTER MODULE

#108
20080087607
2008-04-17

Effluent Treatment Installation And Clarification And Filtration Method Using Same

#109
20070215544
2007-09-20

Washing method and apparatus of separation membrane

#110
20070163941
2007-07-19

System and method of fluid filtration utilizing cross-flow currents

#111
20070151916
2007-07-05

NETWORK FOR SUPPORTING SPIRAL WOUND MEMBRANE CARTRIDGES FOR SUBMERGED OPERATION

#112
20070138092
2007-06-21

Method and system for controlling duration of a backwash cycle of a filtration system

#113
20070138070
2007-06-21

Process and energy-efficient biological treatment system with filtration membrane

#114
20070090051
2007-04-26

Hollow fiber membrane and method of producing the same

#115
20070080111
2007-04-12

MEMBRANE FILTER FOR WATER TREATMENT

#116
20070075021
2007-04-05

Module cleaning method

#117
20070007207
2007-01-11

Apparatus for withdrawing permeate using an immersed vertical skein of hollow fibre membranes

#118
20070007206
2007-01-11

Apparatus for withdrawing permeate using an immersed vertical skein of hollow fibre membranes

#119
20060213831
2006-09-28

Energy-efficient biological treatment system with filtration membrane

#120
20060196831
2006-09-07

Membrane filter for water treatment

#121
20060118477
2006-06-08

Immersed membrane apparatus

#122
20060081536
2006-04-20

Ultrafiltration and microfiltration module and system

#123
20060081534
2006-04-20

Energy-efficient biological treatment with membrane filtration

#124
20050258101
2005-11-24

Hollow fiber membrane and method of producing the same

#125
20050178729
2005-08-18

Maintenance cleaning for membranes

#126
20050178728
2005-08-18

Apparatus for withdrawing permeate using an immersed vertical skein of hollow fibre membranes

#127
20050173342
2005-08-11

Apparatus for withdrawing permeate using an immersed vertical skein of hollow fibre membranes

#128
20050161384
2005-07-28

Apparatus for withdrawing permeate using an immersed vertical skein of hollow fibre membranes

#129
20050092674
2005-05-05

Apparatus for withdrawing permeate using an immersed vertical skein of hollow fibre membranes

#130
20050023198
2005-02-03

Fluid treatment system