ClassID:

30850

B01D2321/18 - CPC Classification

Classification description:

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

Sub-classes:
Recent Application in this class:
#1
20250332548
2025-10-30

METHOD FOR OPERATING MEMBRANE FILTRATION UNIT AND MEMBRANE FILTRATION UNIT

#2
20240351923
2024-10-24

WATER TREATMENT APPARATUS, METHOD FOR WASHING BIOLOGICAL MEMBRANE IN WATER TREATMENT APPARATUS, AND METHOD FOR EVALUATING THICKNESS OF BIOLOGICAL MEMBRANE IN WATER TREATMENT APPARATUS

#3
20240307824
2024-09-19

Method for controlling hollow fiber nanofiltration membrane system with controllable power consumption

#4
20240293781
2024-09-05

Membrane filter and filtering method

#5
20240228277
2024-07-11

Systems and methods for increasing the hydrogen permeance of hydrogen separation membranes in situ

#6
20240216867
2024-07-04

BIOCHAR-ANAEROBIC MEMBRANE BIOLOGICAL TREATMENT SYSTEM AND PROCESS

#7
20240181399
2024-06-06

PROCESSING METHOD OF SEPARATION MEMBRANE COMPLEX AND PROCESSING APPARATUS FOR SEPARATION MEMBRANE COMPLEX

#8
20240009628
2024-01-11

METHOD FOR WASHING HOLLOW FIBER MEMBRANE MODULE

#9
20240009595
2024-01-11

ELECTROCHEMICAL MEMBRANE DEGASSING APPARATUS

#10
20230390706
2023-12-07

WATER TREATMENT DEVICE AND ESTIMATION METHOD

#11
20230340399
2023-10-26

Biological and algae harvesting and cultivation systems and methods

#12
20230264151
2023-08-24

Regenerable organic contaminant controller in space application

#13
20230242865
2023-08-03

BIOLOGICAL AND ALGAE HARVESTING AND CULTIVATION SYSTEMS AND METHODS

#14
20230192487
2023-06-22

Systems and methods for increasing the hydrogen permeance of hydrogen-separation membranes in situ

#15
20230017068
2023-01-19

High flux anaerobic membrane bioreactor

#16
20230009754
2023-01-12

MEMBRANE DISTILLER AND OPERATION METHOD THEREFORE

#17
20220288537
2022-09-15

Modular manifold for filtration modules

#18
20220219123
2022-07-14

FILTRATION MEMBRANE TREATMENT DEVICE, MEMBRANE FILTRATION DEVICE, AND FILTRATION MEMBRANE TREATMENT METHOD

#19
20220203304
2022-06-30

CIRCULATING WATER PREPARATION SYSTEM, COOLING SYSTEM AND METHOD FOR OPERATING A COOLING SYSTEM

#20
20220127142
2022-04-28

Systems and methods for increasing the hydrogen permeance of hydrogen-separation membranes in situ

#21
20220111336
2022-04-14

Membrane filtration device and method for cleaning membrane filtration device

#22
20220032234
2022-02-03

METHOD FOR OPERATING MEMBRANE FILTRATION UNIT AND MEMBRANE FILTRATION UNIT

#23
20220023805
2022-01-27

Ultrafiltration/nanofiltration membrane with tunable pore size

#24
20210316254
2021-10-14

Non-hydrocarbon gas separation device and inorganic separation membrane regeneration method

#25
20210268466
2021-09-02

Gradient induced particle motion in suspensions

#26
20210253811
2021-08-19

Methods and compositions relating to tunable nanoporous coatings

#27
20210146312
2021-05-20

PROCESS FOR CLEANING A MEMBRANE COMPRISING DRYING THE MEMBRANE

#28
20200376437
2020-12-03

FILTRATION APPARATUS

#29
20200299636
2020-09-24

Biological and algae harvesting and cultivation systems and methods

#30
20200269188
2020-08-27

Gas separation device

#31
20200255472
2020-08-13

Systems and methods for exchange of buffer solutions

#32
20200248134
2020-08-06

Biological and algae harvesting and cultivation systems and methods

#33
20200197872
2020-06-25

Water treatment membrane washing apparatus and water treatment membrane washing method

#34
20200101421
2020-04-02

Compact high-throughput device for water treatment

#35
20190358352
2019-11-28

Acoustically excited encapsulated microbubbles and mitigation of biofouling

#36
20190330587
2019-10-31

Biological and algae harvesting and cultivation systems and methods

#37
20190185630
2019-06-20

Methods and compositions relating to tunable nanoporous coatings

#38
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

#39
20190151799
2019-05-23

Filter membrane with bi-directional flow enhancing features

#40
20180340143
2018-11-29

Automatic off-line gas-water combined-washing membrane bioreactor (MBR)

#41
20180333681
2018-11-22

Hollow fiber membrane module and method of cleaning same

#42
20180333680
2018-11-22

Method of liquid filter wetting

#43
20180257054
2018-09-13

Gradient induced particle motion in suspensions

#44
20180111095
2018-04-26

Pressure dew point-controlled purge air regulating unit

#45
20180028981
2018-02-01

FILTRATION UNIT

#46
20170321184
2017-11-09

BIOLOGICAL AND ALGAE HARVESTING AND CULTIVATION SYSTEMS AND METHODS

#47
20170321182
2017-11-09

Biological and algae harvesting and cultivation systems and methods

#48
20170321181
2017-11-09

Biological and algae harvesting and cultivation systems and methods

#49
20170312694
2017-11-02

FILTRATION MODULE AND FILTRATION APPARATUS

#50
20170305576
2017-10-26

On-board inert gas generating air separation module recovery apparatus and method

#51
20170281850
2017-10-05

Artificial dialysis device

#52
20170259212
2017-09-14

Cyclic filtration system

#53
20170096448
2017-04-06

Systems and methods for exchange of buffer solutions

#54
20170056831
2017-03-02

Intermittent-bubbling equipment

#55
20170044029
2017-02-16

Filtration treatment system and filtration treatment method

#56
20170043298
2017-02-16

METHOD FOR OPERATING CLARIFYING-FILM MODULE

#57
20170015569
2017-01-19

Membrane casing and membrane component

#58
20160339393
2016-11-24

Maintenance of gas layers for fouling prevention on submerged surfaces

#59
20160256832
2016-09-08

Method for lifting membrane separation apparatus

#60
20160207004
2016-07-21

Membrane filter and filtering method

#61
20160206997
2016-07-21

Osmotic separation systems and methods

#62
20160121260
2016-05-05

COrecovery device and method for cleaning filtration membrane device of COrecovery device

#63
20160107124
2016-04-21

FILTRATION DEVICE AND FILTRATION METHOD USING SAME

#64
20160023166
2016-01-28

SYSTEM FOR CLEANING A MEMBRANE

#65
20150344337
2015-12-03

Separation membrane module

#66
20150343386
2015-12-03

Compositions and methods of cleaning polyvinyl pyrrolidone-based hemodialysis filtration membrane assemblies

#67
20150144555
2015-05-28

Filtration apparatus

#68
20150007719
2015-01-08

Method for treating impurities contained in exhaust gases of ships, ship with exhaust gas scrubber, and purification unit

#69
20140332467
2014-11-13

Method for cleaning a filter

#70
20140262984
2014-09-18

Determining biofilm thickness in a membrane supported biofilm reactor

#71
20140110338
2014-04-24

Water treatment apparatus and method

#72
20140048482
2014-02-20

Method for cleaning ceramic filter

#73
20130319957
2013-12-05

Method of purifying filter, and method of cleaning or drying object to be treated

#74
20130092618
2013-04-18

SEPARATION MEMBRANE, WATER TREATMENT UNIT AND WATER TREATMENT APPARATUS

#75
20130092617
2013-04-18

WATER TREATMENT UNIT AND WATER TREATMENT APPARATUS

#76
20130043187
2013-02-21

Hollow fiber membrane module for use in a tubular pressure vessel

#77
20120267306
2012-10-25

Osmotic separation systems and methods

#78
20120187043
2012-07-26

IMMERSION MEMBRANE APPARATUS CLEANING PROCESS AND IMMERSION MEMBRANE APPARATUS

#79
20120094361
2012-04-19

Method of Separation of Algal Biomass from Aqueous or Marine Culture

#80
20120048814
2012-03-01

Method for cleaning filter structures in filtration installations for filtering liquid products, and a filtration installation

#81
20110266218
2011-11-03

Determining biofilm thickness in a membrane supported biofilm reactor

#82
20110263009
2011-10-27

METHOD FOR THE FILTRATION OF A BIOREACTOR LIQUID FROM A BIOREACTOR; CROSS-FLOW MEMBRANE MODULE, AND BIOREACTOR MEMBRANE SYSTEM

#83
20110210067
2011-09-01

Use of porous hollow-fiber membrane for producing clarified biomedical culture medium

#84
20110195002
2011-08-11

Advanced particulate matter control apparatus and methods

#85
20110139715
2011-06-16

Membrane system backwash energy efficiency

#86
20110132827
2011-06-09

Composite filtration and demineralization apparatus

#87
20110114551
2011-05-19

SUBMERGED HOLLOW FIBER MEMBRANE MODULE

#88
20110100910
2011-05-05

CERAMIC DEAD-END FILTER, A FILTER SYSTEM, A METHOD OF FILTERING AND A METHOD OF PRODUCING A CERAMIC DEAD-END FILTER

#89
20110031192
2011-02-10

Filtration of corn starch followed by washing and collection of the resultant corn starch cake

#90
20100320137
2010-12-23

Hollow fiber membrane element, frame for hollow fiber membrane element, and membrane filtration apparatus

#91
20100224558
2010-09-09

Water Filtration System

#92
20100219137
2010-09-02

Water treatment apparatus and method

#93
20100219130
2010-09-02

System and Method of Fluid Filtration Utilizing Cross-Flow Currents

#94
20100200504
2010-08-12

Method and device for the purification of an aqueous fluid

#95
20100176070
2010-07-15

FILTER RENEWAL SYSTEM AND A METHOD THEREOF

#96
20100170847
2010-07-08

MEMBRANE CLEANING USING AN AIRLIFT PUMP

#97
20100140191
2010-06-10

METHOD AND APPARATUS FOR SEPARATION OF SOLIDS AND LIQUID SUSPENSIONS BY FILTER UNCLOGGING AIDED FILTRATION

#98
20100025320
2010-02-04

BACKWASH AND CLEANING METHOD

#99
20090206019
2009-08-20

WATER TREATMENT APPARATUS

#100
20090107916
2009-04-30

MODULE CLEANING METHOD

#101
20080105605
2008-05-08

Water treating apparatus

#102
20080099399
2008-05-01

Filtration system

#103
20070292935
2007-12-20

Method and Apparatus for Separation of Solids and Liquid Suspensions by Filter Unclogging Aided Filtration

#104
20070210002
2007-09-13

CHEMICAL AND PROCESS FOR CLEANING MEMBRANES

#105
20070163941
2007-07-19

System and method of fluid filtration utilizing cross-flow currents

#106
20070075021
2007-04-05

Module cleaning method

#107
20070056905
2007-03-15

Continuous pressure decay test

#108
20060180548
2006-08-17

Liquid depletion in solid phase separation processes

#109
20050115891
2005-06-02

Device and method for cleaning a fluid, such as water