ClassID:

30845

B01D2321/16 - CPC Classification

Classification description:

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

Sub-classes:
Recent Application in this class:
#1
20260091356
2026-04-02

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

#2
20250387756
2025-12-25

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

#3
20250296050
2025-09-25

MEMBRANE MONITORING AND CLEAN-IN-PLACE CONTROL SYSTEMS AND TECHNIQUES

#4
20250153111
2025-05-15

BIOFOULING PROTECTION OF ELEVATED VOLUME/VELOCITY FLOWS

#5
20250145496
2025-05-08

HYBRID FILTER AND CHEMICAL CLEANING ASSEMBLY AND METHOD

#6
20240269617
2024-08-15

METHOD FOR OPERATING MEMBRANE-SEPARATION ACTIVATED SLUDGE TREATMENT DEVICE, AND MEMBRANE-SEPARATION ACTIVATED SLUDGE TREATMENT DEVICE

#7
20240207789
2024-06-27

PREVENTIVE CONTROL METHOD AND SYSTEM FOR PREVENTING THE FOULING OF A MEMBRANE SEPARATION UNIT

#8
20240190747
2024-06-13

MOBILE WATER TREATMENT PLANT FOR THE REMOVAL OF PFAS CHEMICALS

#9
20240109106
2024-04-04

Air separation module (ASM) contamination apparatus and removal process

#10
20230398498
2023-12-14

SYSTEMS, METHODS, AND DEVICES FOR OPTIMIZATION OF ULTRA FILTRATION MEMBRANE PERFORMANCE FOR WATER TREATMENT USING ARTIFICIAL INTELLIGENCE AND OPTIMIZATION ALGORITHMS

#11
20230390706
2023-12-07

WATER TREATMENT DEVICE AND ESTIMATION METHOD

#12
20230356151
2023-11-09

FILTER DEVICE, PURIFICATION DEVICE, CHEMICAL SOLUTION PRODUCTION METHOD

#13
20230227342
2023-07-20

WATER TREATMENT METHOD AND WATER TREATMENT APPARATUS

#14
20230211291
2023-07-06

Continuous diafiltration by means of tank cycling

#15
20230140839
2023-05-04

Techniques for managing scale formation in water filtration systems and a reverse osmosis (RO) and nanofiltration (NF) system implementing same

#16
20230121715
2023-04-20

METHOD AND PROGRAM FOR DETERMINING CLEANING TROUBLE IN FRESH WATER GENERATOR

#17
20220331743
2022-10-20

BIOFOULING PROTECTION OF ELEVATED VOLUME/VELOCITY FLOWS

#18
20220226782
2022-07-21

Systems and techniques for cleaning pressure membrane systems using a water-in-air cleaning stream

#19
20220212961
2022-07-07

WATER TREATMENT SYSTEM AND WATER TREATMENT METHOD

#20
20220161193
2022-05-26

DIGITAL SEAWATER PROCESSING

#21
20220089959
2022-03-24

Process for molecular separation of hydrocarbons using nanopore membranes

#22
20220064021
2022-03-03

TECHNIQUES FOR MANAGING SCALE FORMATION IN WATER FILTRATION SYSTEMS AND A REVERSE OSMOSIS (RO) AND NANOFILTRATION (NF) SYSTEM IMPLEMENTING SAME

#23
20210402353
2021-12-30

TECHNIQUES FOR MANAGING SCALE FORMATION IN REVERSE OSMOSIS (RO) AND NANOFILTRATION (NF) SYSTEMS AND A HYBRID FILTRATION ARCHITECTURE IMPLEMENTING THE SAME

#24
20210363028
2021-11-25

MODULAR PRESSURIZED WATER FILTRATION SYSTEM

#25
20210309543
2021-10-07

System and process for removing polyfluorinated pollutants from water

#26
20210292189
2021-09-23

Techniques for managing scale formation in water filtration systems and a reverse osmosis (RO) and nanofiltration (NF) system implementing same

#27
20210291118
2021-09-23

CLEANING-IN-PLACE METHOD AND FILTER DEVICE

#28
20210270723
2021-09-02

Method and device for the detection and monitoring of surface fouling

#29
20210214244
2021-07-15

Containerized desalination system

#30
20210213392
2021-07-15

High-performance thin-film composite polyamide membrane upcylcled from biopolymer-fouled substrates and preparation method thereof

#31
20210171378
2021-06-10

METHOD AND APPARATUS FOR HIGH WATER EFFICIENCY MEMBRANE FILTRATION TREATING HARD WATER

#32
20210171362
2021-06-10

Predictive tool for monitoring RO and NF membranes

#33
20210170336
2021-06-10

Continuous diafiltration by means of tank cycling

#34
20210162347
2021-06-03

Electrodialysis Process With Active Foulant Removal Sequence

#35
20210069652
2021-03-11

Management device for water treatment facility, cleaning chemical solution order placement system for water treatment facility, chemical solution order placement method for water treatment facility, and chemical solution cleaning planning method for water treatment facility

#36
20210033505
2021-02-04

METHODS OF MEMBRANE-BASED PROTEOMIC SAMPLE PREPARATION

#37
20200376437
2020-12-03

FILTRATION APPARATUS

#38
20200360862
2020-11-19

Filter device, purification device, chemical solution production method

#39
20200238222
2020-07-30

High flux, chlorine resistant coating for sulfate removal membranes

#40
20200216330
2020-07-09

Conversion of media filter into membrane gravity filter

#41
20200206690
2020-07-02

Method and device for flushing diffusiophoretic water filter

#42
20200132639
2020-04-30

Ion suppressor and ion chromatograph

#43
20200086274
2020-03-19

Advancements in osmotically driven membrane systems including multi-stage purification

#44
20190308140
2019-10-10

System of detecting a leak in a heat exchanger of a hemodialysis device

#45
20190299165
2019-10-03

FEED PREPARATION OF FCC SLURRY OIL RETENTATE FOR DOWNSTREAM PROCESSING

#46
20190224627
2019-07-25

Method for permeate flow path sanitization in a reverse osmosis system

#47
20190184343
2019-06-20

Computer-readable recording medium on which clogging location specification program for separation membrane module is recorded, water production system, and water production method

#48
20190168166
2019-06-06

Cleaning method of a water-filtration system under operation

#49
20190112204
2019-04-18

Water treatment device

#50
20190112202
2019-04-18

Method for dosing antiscalant into a membrane-based water treatment system

#51
20190060844
2019-02-28

High flux reverse osmosis membrane comprising polyethersulfone/polyethylene oxide-polysilsesquioxane blend membrane for water purification

#52
20180369756
2018-12-27

High flux, chlorine resistant coating for sulfate removal membranes

#53
20180312412
2018-11-01

Containerized desalination system

#54
20180250638
2018-09-06

Filtration system and method for chemical rinsing a filtration system

#55
20180207588
2018-07-26

Method of detecting a leak in a heat exchanger of a hemodialysis machine

#56
20180037473
2018-02-08

Conversion of media filter into membrane gravity filter

#57
20180021734
2018-01-25

WATER TREATMENT SYSTEM AND METHOD FOR TREATING WATER LOCATED IN A WATER RESERVOIR

#58
20170370813
2017-12-28

METHODS OF MEMBRANE-BASED PROTEOMIC SAMPLE PREPARATION

#59
20170274325
2017-09-28

WATER TREATMENT METHOD

#60
20170240428
2017-08-24

TWO-DIMENSIONAL MATERIALS

#61
20170182466
2017-06-29

PROCESS FOR INHIBITING SCALE FORMATION WITH UV LIGHT

#62
20170182465
2017-06-29

WATER TREATMENT METHOD AND WATER TREATMENT APPARATUS EACH USING MEMBRANE

#63
20170158538
2017-06-08

Systems and methods for treating oilfield wastewater

#64
20170120311
2017-05-04

PORTABLE APPARATUS FOR CLEANING POTABLE WATER DEVICES

#65
20170044473
2017-02-16

Multi-stage filtration apparatus and filtration method for heterogeneous food admixtures

#66
20170043298
2017-02-16

METHOD FOR OPERATING CLARIFYING-FILM MODULE

#67
20170014770
2017-01-19

SEAWATER DESALINATION DEVICE, METHOD FOR DESALINATING SEAWATER USING THE SAME, AND METHOD FOR CLEANING SEAWATER DESALINATION DEVICE

#68
20160375407
2016-12-29

Membrane fouling reduction using chemical micropumps

#69
20160297692
2016-10-13

Purification of oil-polluted water and device suitable therefor

#70
20160271565
2016-09-22

Composition and method for biofouling inhibition of membrane separation device

#71
20160194222
2016-07-07

RO installation for flushing solutions

#72
20160144320
2016-05-26

Filter device, manufacturing device for chemical, and operation method for filter device

#73
20160038880
2016-02-11

Advancements in osmotically driven membrane systems including low pressure control

#74
20160002074
2016-01-07

Advancements in osmotically driven membrane systems including multi-stage purification

#75
20150203927
2015-07-23

Method of producing sugar solution

#76
20150202573
2015-07-23

Membrane filter cleaning apparatus for waste-water treatment process

#77
20150158746
2015-06-11

Method, apparatus and system for desalinating saltwater

#78
20150144555
2015-05-28

Filtration apparatus

#79
20140360937
2014-12-11

Reverse osmosis treatment device and method for cleaning reverse osmosis treatment device

#80
20140332470
2014-11-13

Trimethylolpropane core, phosphonic acid terminated dendrimer and its preparation method

#81
20140326682
2014-11-06

Method and assembly for water filtration using a tube manifold to minimize backwash

#82
20140128554
2014-05-08

Polyurethane resin composition and hollow fiber membrane module produced using same

#83
20140048482
2014-02-20

Method for cleaning ceramic filter

#84
20130248444
2013-09-26

Method for scaling control in a membrane system operation via a control system of a plant

#85
20130092618
2013-04-18

SEPARATION MEMBRANE, WATER TREATMENT UNIT AND WATER TREATMENT APPARATUS

#86
20130092617
2013-04-18

WATER TREATMENT UNIT AND WATER TREATMENT APPARATUS

#87
20130075310
2013-03-28

Device for producing ultrapure water

#88
20130068689
2013-03-21

Membrane distillation modules using oleophobically and antimicrobially treated microporous membranes

#89
20130060384
2013-03-07

Method and system for optimizing membrane cleaning process

#90
20130043190
2013-02-21

High recovery drinking water process

#91
20130032530
2013-02-07

Composite semipermeable membrane

#92
20130015132
2013-01-17

Water purification apparatus and method for using pressure filter and pore control fiber filter

#93
20120255907
2012-10-11

Water producing system and operation method therefor

#94
20120187043
2012-07-26

IMMERSION MEMBRANE APPARATUS CLEANING PROCESS AND IMMERSION MEMBRANE APPARATUS

#95
20120168374
2012-07-05

CLEANING PROCESS FOR IMMERSION-TYPE SEPARATING MEMBRANE DEVICE, AND CLEANING SYSTEM FOR IMMERSION-TYPE SEPARATING MEMBRANE DEVICE

#96
20120103881
2012-05-03

WATER TREATMENT PLANT WITH IMMERSED MEMBRANES

#97
20120058302
2012-03-08

FABRICATION OF ANTI-FOULING SURFACES COMPRISING A MICRO- OR NANO-PATTERNED COATING

#98
20120024789
2012-02-02

Surface modification of polyamide reverse osmosis membranes

#99
20110315632
2011-12-29

MEMBRANE FILTRATION SYSTEM

#100
20110278159
2011-11-17

Cation exchange membrane, production process thereof and electrolytic cell using the same

#101
20110272335
2011-11-10

IMMERSED MEMBRANE CASSETTE AND METHOD OF OPERATION

#102
20110253621
2011-10-20

Method of manufacturing hydrophilic membrane having improved antifouling property and hydrophilic membrane manufactured by the method

#103
20110198288
2011-08-18

Fouling resistant membranes formed with polyacrylonitrile graft copolymers

#104
20110163036
2011-07-07

Method and apparatus for generating fresh water

#105
20110147310
2011-06-23

Method and apparatus for generating fresh water

#106
20110147285
2011-06-23

Reverse-osmosis water desalination plant

#107
20110139716
2011-06-16

Method and apparatus for desalinating sea water

#108
20110139712
2011-06-16

Method and apparatus for desalinating sea water

#109
20110114557
2011-05-19

CLEANING IN MEMBRANE FILTRATION SYSTEMS

#110
20110100914
2011-05-05

Ultrafiltration process

#111
20110067737
2011-03-24

Method and apparatus for cleaning a film seperating device

#112
20110049049
2011-03-03

WATER PURIFICATION SYSTEM SKID

#113
20110049048
2011-03-03

WATER PURIFICATION SYSTEM

#114
20110042312
2011-02-24

Real-time process control for an immersed membrane filtration system using a control hierarchy of discrete-state parameter changes

#115
20110042306
2011-02-24

Method for desalinating sea water

#116
20110005997
2011-01-13

Hybrid TFC RO membranes with nitrogen additives

#117
20110000849
2011-01-06

Water purification apparatus and method for using pressure filter and pore control fiber filter

#118
20100240915
2010-09-23

Pre-Treatment of Crude Alcohol or Furan Feed to a Vapor Permeation Apparatus

#119
20100193435
2010-08-05

Method for the Filtration of a Fluid

#120
20100192976
2010-08-05

APPARATUS FOR CLEANING A MEMBRANE MODULE AND A METHOD THEREFOR

#121
20100025320
2010-02-04

BACKWASH AND CLEANING METHOD

#122
20100000941
2010-01-07

Simple gas scouring method and apparatus

#123
20090314713
2009-12-24

Cross-flow filtration apparatus with biocidal feed spacer

#124
20090308804
2009-12-17

Fouling and scaling resistant nano-structured reverse osmosis membranes

#125
20090230056
2009-09-17

Method of treating wastewater

#126
20090145773
2009-06-11

Membrane Cycle Cleaning

#127
20080217244
2008-09-11

Water treatment method comprising a rapid settling step followed by a filtration step directly on micro- or ultra-filtration membranes, and corresponding device

#128
20080209709
2008-09-04

Container uncapping mechanism and method

#129
20080203017
2008-08-28

Chemical clean for membrane filter

#130
20080203016
2008-08-28

Cleaning in membrane filtration systems

#131
20080190846
2008-08-14

Assembly for water filtration using a tube manifold to minimise backwash

#132
20080166801
2008-07-10

Filtration system and method for obtaining a cytology layer

#133
20080164200
2008-07-10

Filtration system and method for obtaining a cytology layer

#134
20080149562
2008-06-26

METHODS AND SYSTEMS FOR DELIVERING SCALE INHIBITOR

#135
20080142041
2008-06-19

Process for cleaning an installation

#136
20080135497
2008-06-12

Membrane Filter System Comprising Parallel Cross-Flow Filter Modules

#137
20080099399
2008-05-01

Filtration system

#138
20080087603
2008-04-17

Fluid purification methods and devices

#139
20070215544
2007-09-20

Washing method and apparatus of separation membrane

#140
20070215474
2007-09-20

Electrodialysis system and process

#141
20070163951
2007-07-19

Chlorine resistant desalination membranes based on directly sulfonated poly(arylene ether sulfone) copolymers

#142
20070151916
2007-07-05

NETWORK FOR SUPPORTING SPIRAL WOUND MEMBRANE CARTRIDGES FOR SUBMERGED OPERATION

#143
20070151212
2007-07-05

Specimen vial sealing apparatus and method

#144
20070138096
2007-06-21

SYSTEMS AND METHODS FOR CONTROLLING CONTAMINATE LEVELS OF PROCESSED WATER AND MAINTAINING MEMBRANES

#145
20070138070
2007-06-21

Process and energy-efficient biological treatment system with filtration membrane

#146
20070090050
2007-04-26

METHOD AND APPARATUS FOR TREATMENT OF A FLUID STREAM

#147
20070039888
2007-02-22

Process control for an immersed membrane system

#148
20070039883
2007-02-22

Water separation system

#149
20070021570
2007-01-25

Process for preparing a halogenated polymer and device for its implementation

#150
20060266705
2006-11-30

Refreshing chemicals during membrane cleaning

#151
20060266680
2006-11-30

Method of operating a water treatment plant with immersed membranes

#152
20060231495
2006-10-19

Regeneration of adsorption media within electrical purification apparatuses

#153
20060231406
2006-10-19

Regeneration of adsorption media within electrical purification apparatuses

#154
20060213833
2006-09-28

Method for cleaning separation membrane

#155
20060213831
2006-09-28

Energy-efficient biological treatment system with filtration membrane

#156
20060196819
2006-09-07

External pressure hollow fibre membrane separation system

#157
20060131234
2006-06-22

Scouring method

#158
20060120835
2006-06-08

Article handling system and method

#159
20060120834
2006-06-08

Article handling system and method

#160
20060108275
2006-05-25

Membrane filtration assemblies for sand filter retrofit

#161
20060096920
2006-05-11

System and method for conditioning water

#162
20060091075
2006-05-04

Water filtration using immersed membranes

#163
20060081534
2006-04-20

Energy-efficient biological treatment with membrane filtration

#164
20060060529
2006-03-23

Chemical cleaning backwash for normally immersed membranes

#165
20060054552
2006-03-16

Membrane bioreactor, process and aerator

#166
20060021929
2006-02-02

Removal system for membranes in a membrane filtration system

#167
20060016754
2006-01-26

Water-treating microbicide, water treatment method and water treatment apparatus

#168
20060000775
2006-01-05

Scouring method

#169
20050284814
2005-12-29

Ultrafiltration membrane and process

#170
20050284806
2005-12-29

Nanofiltration system for water softening with internally staged spiral wound modules

#171
20050274674
2005-12-15

Method and apparatus for treatment of a fluid stream

#172
20050195684
2005-09-08

Apparatus and method for mixing specimens in vials

#173
20050178729
2005-08-18

Maintenance cleaning for membranes

#174
20050126963
2005-06-16

Water treatment plant with immersed membranes

#175
20050109692
2005-05-26

Apparatus and method for cleaning membrane filtration modules

#176
20050082227
2005-04-21

Water filtration using immersed membranes

#177
20050067341
2005-03-31

Continuous production membrane water treatment plant and method for operating same

#178
20050061725
2005-03-24

Membrane bioreactor, process and aerator

#179
20050056600
2005-03-17

Nanofilter system and method of use

#180
20050035041
2005-02-17

Hollow fiber membrane filters in various containers

#181
20050000881
2005-01-06

Plate filtration module

#182
17518719
2023-07-04

Stabilized electromagnetic base liquid, formation thereof and application to high-salt wastewater treatment

#183
16156700
2021-01-19

Control process for wastewater treatment system