ClassID:

30750

B01D2311/2642 - CPC Classification

Classification description:

Details relating to membrane separation process operations and control; Further operations combined with membrane separation processes Aggregation, sedimentation, flocculation, precipitation or coagulation

Recent Application in this class:
#1
20260092000
2026-04-02

Methods and Systems for Treating Phosphogypsum-Containing Water

#2
20260042798
2026-02-12

CHROMATOGRAPHY-FREE ANTIBODY PURIFICATION METHOD

#3
20260001791
2026-01-01

METHOD AND SYSTEM OF REMOVING ENVIRONMENTAL CONTAMINANTS FROM WATER

#4
20250377371
2025-12-11

Systems, Methods, And Devices For Automated Nucleic Acid And Protein Isolation

#5
20250361167
2025-11-27

SYSTEMS AND METHODS FOR REMOVING PHOSPHORUS FROM WATER

#6
20250340472
2025-11-06

Salt Separation and Destruction of PFAS Utilizing Reverse Osmosis and Salt Separation

#7
20250230074
2025-07-17

CHEMICAL FREE EXTRACTION OF LITHIUM FROM BRINE

#8
20250153104
2025-05-15

Method and Apparatus for Mineral Extraction

#9
20240392464
2024-11-28

TREATMENT SYSTEM AND METHOD

#10
20240361348
2024-10-31

Systems, Methods, And Devices For Automated Nucleic Acid And Protein Isolation

#11
20240308888
2024-09-19

ELECTRODIALYSIS PROCESSES USING AN ORGANIC SOLVENT FOR SEPARATING DISSOLVED SPECIES

#12
20240294395
2024-09-05

PROCESSES FOR PREPARING HYDROXIDES AND OXIDES OF VARIOUS METALS AND DERIVATIVES THEREOF

#13
20240293776
2024-09-05

COMMERCIAL PURIFICATION METHOD FOR HIGH-PURITY BACTERIAL EXTRACELLULAR VESICLES

#14
20240182341
2024-06-06

Salt Separation and Destruction of PFAS Utilizing Reverse Osmosis and Salt Separation

#15
20240140847
2024-05-02

SYSTEMS AND METHODS FOR REMOVING PHOSPHORUS FROM WATER

#16
20240132389
2024-04-25

Treatment of saline water for agricultural and potable use

#17
20240124340
2024-04-18

DECOMPOSITION OF GAS FIELD CHEMICALS

#18
20230332322
2023-10-19

Treatment system and method

#19
20230242807
2023-08-03

Methods for removing sulfate ions from seawater to form injection fluids

#20
20230241555
2023-08-03

Wastewater treatment method and wastewater treatment apparatus

#21
20230241532
2023-08-03

NUTRIENT CONCENTRATION AND WATER RECOVERY SYSTEM AND ASSOCIATED METHODS

#22
20230183113
2023-06-15

Cerium-lanthanum treatment method for reduction of contaminants in wastewater membrane bioreactors

#23
20230159348
2023-05-25

Processes for preparing hydroxides and oxides of various metals and derivatives thereof

#24
20230111991
2023-04-13

Methods for isolating compounds

#25
20230047367
2023-02-16

Salt separation and destruction of PFAS utilizing reverse osmosis and salt separation

#26
20230014345
2023-01-19

APPARATUS SYSTEM AND METHOD TO DESALINATE WATER

#27
20230009795
2023-01-12

METHOD AND SYSTEM OF REMOVING ENVIRONMENTAL CONTAMINANTS FROM WATER

#28
20220348487
2022-11-03

Methods and systems for zero liquid discharge recycling of waste generated from manufacturing operations

#29
20220324896
2022-10-13

Method for separation and purification of n-acetylglucosamine

#30
20220298029
2022-09-22

A PROCESS FOR REMOVAL OF PFAS FROM WATER

#31
20220243120
2022-08-04

Methods for removing sulfate ions from seawater to form injection fluids

#32
20220240538
2022-08-04

DIAFILTRATION

#33
20220227649
2022-07-21

ELECTROHYDROMODULATING PROCESS FOR RECOVERING NUTRIENTS, MINERALIZING ORGANICS, AND INACTIVATING PATHOGENS IN WASTEWATER

#34
20220144655
2022-05-12

Method for concentrating and purifying eluate brine for the production of a purified lithium compound

#35
20220111318
2022-04-14

METHOD FOR EXTRACTING MICROVESICLES FROM BIOLOGICAL SAMPLE

#36
20220105467
2022-04-07

PRECIPITATION SYSTEM AND PRECIPITATION METHOD

#37
20220080357
2022-03-17

Method and system for refining long chain dicarboxylic acid

#38
20220073393
2022-03-10

Methods and Systems for Treating Phosphogypsum-Containing Water

#39
20220041483
2022-02-10

Salt separation and destruction of PFAS utilizing reverse osmosis and salt separation

#40
20220041460
2022-02-10

Preparation method of lithium hydroxide

#41
20220016576
2022-01-20

Removal of Al-salts, HCl, NaCl and organic by-product from strong alkaline DIOPAT suspension by means of alkaline stable nanofiltration followed by separation of salts and byproducts after neutralization of DIOPAT solution by means of ultrafiltration

#42
20220002168
2022-01-06

Processes for preparing hydroxides and oxides of various metals and derivatives thereof

#43
20210403843
2021-12-30

System and Method for the Production of a Physically Stable High Gravity Beer

#44
20210395124
2021-12-23

Membrane separation pretreatment apparatus including underwater plasma discharge unit

#45
20210388524
2021-12-16

Treatment system and method

#46
20210371457
2021-12-02

CHROMATOGRAPHY-FREE ANTIBODY PURIFICATION METHOD

#47
20210363032
2021-11-25

Sour water treatment

#48
20210352943
2021-11-18

Sweetening composition and preparation method and use thereof

#49
20210323852
2021-10-21

Methods and Systems for Treating Phosphogypsum-Containing Water

#50
20210276901
2021-09-09

Cerium-lanthanum treatment method for reduction of contaminants in wastewater membrane bioreactors

#51
20210276892
2021-09-09

Electrodialysis processes using an organic solvent for separating dissolved species

#52
20210190809
2021-06-24

Systems, methods, and devices for automated nucleic acid and protein isolation

#53
20210187443
2021-06-24

Method and system for extracting long chain dicarboxylic acid

#54
20210101116
2021-04-08

Apparatus system and method to seperate brine from water using heat energy recovery

#55
20210094855
2021-04-01

Methods of separating and isolating water and other desired constituents from oilfield produced brines

#56
20200407243
2020-12-31

Membrane separation method and device provided with particle sorting device

#57
20200407237
2020-12-31

Processes for preparing hydroxides and oxides of various metals and derivatives thereof

#58
20200407229
2020-12-31

Method of production of a silica concentrate

#59
20200398221
2020-12-24

Method for purifying and recovering solvent from ion exchange processes

#60
20200385299
2020-12-10

Treatment of saline water for agricultural and potable use

#61
20200331777
2020-10-22

Method for treating produced water

#62
20200330923
2020-10-22

Vapor condenser enhanced by membrane evaporation

#63
20200317553
2020-10-08

Treatment of fluoride-containing wastewater

#64
20200270156
2020-08-27

Membrane wastewater treatment of combined sewer overflows and sanitary sewer overflows

#65
20200246844
2020-08-06

Waste and/or hazardous liquid containment and collection system

#66
20200215454
2020-07-09

System and method for removal of scale forming components

#67
20200095150
2020-03-26

Automated waste water recycling system using advanced electro-coagulation unit

#68
20200095149
2020-03-26

Automated waste water recycling system using advanced electro-coagulation unit

#69
20200095144
2020-03-26

Cerium-lanthanum treatment method for reduction of contaminants in wastewater membrane bioreactors

#70
20200079699
2020-03-12

Phosphorus extraction and recovery system (PEARS)

#71
20200070064
2020-03-05

Protein crystallization method and crystallization device

#72
20200023293
2020-01-23

NUTRIENT CONCENTRATION AND WATER RECOVERY SYSTEM AND ASSOCIATED METHODS

#73
20200001237
2020-01-02

Membrane filtration method

#74
20190274332
2019-09-12

Methods for isolating compounds

#75
20190270660
2019-09-05

Methods of separating and isolating water and other desired constituents from oilfield produced brines for reuse

#76
20190256987
2019-08-22

Integrated system for lithium extraction and conversion

#77
20190224623
2019-07-25

Osmotic fluid purification and draw compounds thereof

#78
20190194043
2019-06-27

Treatment of water

#79
20190166865
2019-06-06

Method of producing lactic acid

#80
20190144288
2019-05-16

Method of production of a silica concentrare

#81
20190099329
2019-04-04

AN APPARATUS FOR PRODUCING MICROSPHERES OF CUSTOMIZABLE SIZES EFFICIENTLY

#82
20190062189
2019-02-28

Concentrating aqueous solutions via hybridizing electrodialysis and other desalination techniques

#83
20190060834
2019-02-28

Apparatus system and method to separate brine from water

#84
20190039922
2019-02-07

Process for the preparation of an aqueous solution comprising at least one earth alkali hydrogen carbonate

#85
20190023586
2019-01-24

Recycling automotive phosphate rinse water stream

#86
20180340143
2018-11-29

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

#87
20180304203
2018-10-25

CERAMIC MEMBRANE SYSTEM FOR SILICA REMOVAL AND RELATED METHODS

#88
20180290961
2018-10-11

METHOD AND SYSTEM FOR OBTAINING A CARBOXYLIC ACID WHICH IS PRODUCED IN A FERMENTATION PROCESS

#89
20180265387
2018-09-20

Method for purifying water as well as plant suitable for said method

#90
20180222758
2018-08-09

Process for the recovery of sodium sulfate

#91
20180193800
2018-07-12

Symbiotic reverse osmosis for maximizing desalinated water recovery from saline waters and brines

#92
20180180581
2018-06-28

Method and device for testing the effectiveness of magnetic treatment of feed water for reducing mineral scaling in reverse osmosis processes

#93
20180147531
2018-05-31

Method for producing lithium hydroxide and lithium carbonate

#94
20180141832
2018-05-24

Ion concentration polarization-electrocoagulation hybrid water treatment system

#95
20180118577
2018-05-03

Method of production of a colloidal silica concentrate

#96
20180117531
2018-05-03

Submerged membrane filtration system using reciprocating membrane

#97
20180085709
2018-03-29

WATER TREATMENT DEVICE, AND METHOD OF OPERATING WATER TREATMENT DEVICE

#98
20180036686
2018-02-08

WATER QUALITY MONITORING DEVICE, WATER TREATMENT DEVICE, WATER TREATMENT SYSTEM, WATER QUALITY MONITORING METHOD, AND PROGRAM

#99
20180016171
2018-01-18

Systems and methods for treating dilute wastewater

#100
20170368476
2017-12-28

System and method for removal of scale forming components

#101
20170341028
2017-11-30

ULTRAFILTRATION PURIFICATION OF QUANTUM-DOTS

#102
20170327427
2017-11-16

Phosphorus extraction and recovery system (PEARS)

#103
20170267550
2017-09-21

ULTRAPURE WATER PRODUCING METHOD

#104
20170247770
2017-08-31

Method for purifying oses without adjusting pH

#105
20170217871
2017-08-03

Method and apparatus for concentration and crystallization of fermentable carboxylic acids

#106
20170209834
2017-07-27

Self-adaptive control and optimization of membrane filtration

#107
20170182439
2017-06-29

Filter method for filtering a fluid and adjusting a pre-treatment agent based on a process variable

#108
20170158538
2017-06-08

Systems and methods for treating oilfield wastewater

#109
20170066665
2017-03-09

Ion concentration polarization-electrocoagulation hybrid water treatment system

#110
20170057853
2017-03-02

Submerged membrane filtration system using reciprocating membrane

#111
20170015612
2017-01-19

Divalent ion removal from monoethylene glycol (MEG) feed streams

#112
20160355425
2016-12-08

Systems and methods for water filtration

#113
20160318787
2016-11-03

Anaerobic fermentation to produce biogas

#114
20160304371
2016-10-20

Subsurface water purification method

#115
20160206997
2016-07-21

Osmotic separation systems and methods

#116
20160193544
2016-07-07

Crystallization system and process

#117
20160185627
2016-06-30

System and method for treating contaminated wastewater

#118
20160074810
2016-03-17

Draw solute for forward osmosis

#119
20160039685
2016-02-11

Recovery of retrograde soluble solute for forward osmosis water treatment

#120
20160002130
2016-01-07

Divalent ion removal from monoethylene glycol (MEG) feed streams

#121
20150360179
2015-12-17

Crystallization system with frame elements

#122
20150284271
2015-10-08

Apparatus, systems, and methods for removing total dissolved solids from a fluid

#123
20150274562
2015-10-01

Wastewater Refinery

#124
20150203384
2015-07-23

Water treatment process and water treatment system

#125
20150203383
2015-07-23

Water treatment process and water treatment system

#126
20150203382
2015-07-23

Water treatment process and water treatment system

#127
20150203381
2015-07-23

Water treatment process and water treatment system

#128
20150203380
2015-07-23

Water treatment process and water treatment system

#129
20150203379
2015-07-23

Water treatment process and water treatment system

#130
20150119609
2015-04-30

Carboxylic acid salt removal during hydrate inhibitor recovery

#131
20150034556
2015-02-05

Method and apparatus for treating accompanied water from a well

#132
20140197104
2014-07-17

Apparatus and method for generating useful energy

#133
20140091039
2014-04-03

SYSTEM AND METHOD FOR THE TREATMENT OF HYDRAULIC FRACTURING BACKFLOW WATER

#134
20140042029
2014-02-13

System for rinsing electrodialysis electrodes

#135
20140021132
2014-01-23

Water treatment apparatus with circulating flow path and water treatment method using the same

#136
20140017729
2014-01-16

Method for manufacturing a sugar solution by adding a polymer to the starting solution before filtration

#137
20130267684
2013-10-10

Method for preparing aqueous solution containing culture medium and chelating agent

#138
20130248445
2013-09-26

Membrane filtration process with high water recovery

#139
20130134094
2013-05-30

Methods and Apparatus for Removing Impurities from Water

#140
20130048563
2013-02-28

TANNIN POLYMERS AS AIDS FOR REDUCING FOULING OF CERAMIC MEMBRANES

#141
20130048561
2013-02-28

Methods and systems for treating liquids using switchable solvents

#142
20130015132
2013-01-17

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

#143
20130004994
2013-01-03

METHOD FOR PRODUCING PURE SUGAR SOLUTION, AND METHOD FOR PRODUCING CHEMICAL PRODUCT

#144
20120312747
2012-12-13

Method and apparatus for recycling and treating wastes of silicon wafer cutting and polishing processes

#145
20120311822
2012-12-13

Solute crystallizing apparatus

#146
20120298570
2012-11-29

FILTRATION APPARATUS AND WATER TREATMENT APPARATUS

#147
20120279861
2012-11-08

Method for desalinating saltwater using concentration gradient energy

#148
20120267308
2012-10-25

Recovery of retrograde soluble solute for forward osmosis water treatment

#149
20120267306
2012-10-25

Osmotic separation systems and methods

#150
20120220009
2012-08-30

Cross-flow membrane filtration-based process for protein recovery

#151
20120198718
2012-08-09

Thermal treatment system for spent hydroprocessing catalyst

#152
20120160753
2012-06-28

WATER DESALINATION PLANT AND SYSTEM FOR THE PRODUCTION OF PURE WATER AND SALT

#153
20120152855
2012-06-21

SYSTEMS AND APPARATUS FOR SEAWATER ORGANICS REMOVAL

#154
20120149076
2012-06-14

INTEGRATION OF FERMENTAITON WITH MEMBRANE

#155
20120145627
2012-06-14

Anaerobic fermentation to produce biogas

#156
20120103905
2012-05-03

Microfiltration method and system

#157
20120097609
2012-04-26

METHODS AND SYSTEMS FOR TREATMENT OF AQUEOUS OILY SOLUTIONS

#158
20110315631
2011-12-29

Multi-use high water recovery process

#159
20110303607
2011-12-15

Seawater desalination plant and production of high purity salt

#160
20110289847
2011-12-01

Gasification process

#161
20110168629
2011-07-14

Process for recovering heavy oil utilizing one or more membranes

#162
20110155665
2011-06-30

Method and System for High Recovery Water Desalting

#163
20110094963
2011-04-28

MEMBRANE SEPARATION METHOD AND MEMBRANE SEPARATION DEVICE

#164
20110089036
2011-04-21

Method for desalinating saltwater using concentration difference energy

#165
20110062079
2011-03-17

PROCESS FOR TREATING WATER BY A NANOFILTRATION OR REVERSE OSMOSIS MEMBRANE SYSTEM ENABLING HIGH CONVERSION RATES DUE TO THE ELIMINATION OF ORGANIC MATTER

#166
20110000849
2011-01-06

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

#167
20100326912
2010-12-30

PROCESS FOR PRODUCING RECLAIMED WATER

#168
20100300970
2010-12-02

Process for enhanced total organic carbon removal while maintaining optimum membrane filter performance

#169
20100242995
2010-09-30

Method for removing ionic species from desalination unit

#170
20100167912
2010-07-01

Thermal treatment processes for spent hydroprocessing catalyst

#171
20100167910
2010-07-01

Heavy oil upgrade process including recovery of spent catalyst

#172
20100126932
2010-05-27

Method and apparatus for treatment of contaminated liquid

#173
20100108274
2010-05-06

DISPOSAL PROCESS FOR SULFIDE-FREE BLACK LIQUORS

#174
20100101998
2010-04-29

Method for treating ship ballast water with membrane

#175
20100032373
2010-02-11

METHOD FOR THE OPTIMISED MANAGEMENT OF A MEMBRANE FILTRATION UNIT AND EQUIPMENT FOR REALISING THE SAME

#176
20090308745
2009-12-17

Process for enhanced total organic carbon removal while maintaining optimum membrane filter performance

#177
20090255673
2009-10-15

Process for recovering heavy oil utilizing one or more membranes

#178
20090236275
2009-09-24

Water treatment system

#179
20090204419
2009-08-13

Purification of Oil Field Production Water for Beneficial Use

#180
20090127199
2009-05-21

METHOD AND DEVICE FOR FLUORIDE REMOVAL FROM DRINKING WATER

#181
20090101578
2009-04-23

Process for enhanced total organic carbon removal while maintaining optimum membrane filter performance

#182
20090081105
2009-03-26

Silica extraction from geothermal water

#183
20090056940
2009-03-05

Process for recovering heavy oil utilizing one or more membranes

#184
20080314833
2008-12-25

COAGULANT DOSING PROCESS FOR MEMBRANE FILTRATION

#185
20080251457
2008-10-16

Method for reducing fouling in microfiltration systems

#186
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

#187
20080099393
2008-05-01

PROCESS FOR RECYCLING PAINT FLUSH SOLUTION

#188
20070278152
2007-12-06

METHOD OF IMPROVING PERFORMANCE OF ULTRAFILTRATION OR MICROFILTRATION MEMBRANE PROCESS IN LANDFILL LEACHATE TREATMENT

#189
20070278151
2007-12-06

METHOD OF IMPROVING PERFORMANCE OF ULTRAFILTRATION OR MICROFILTRATION MEMBRANE PROCESSES IN BACKWASH WATER TREATMENT

#190
20070256977
2007-11-08

Reverse osmosis water filtering system

#191
20070199896
2007-08-30

Water Treatment Method And Apparatus Using Pretreatment And Membranes

#192
20070175810
2007-08-02

Sludge flocculator-separator for the physico-chemical treatment of water

#193
20070003370
2007-01-04

Method for treating landfill leachate

#194
20060219613
2006-10-05

Water purification system and method

#195
20060151397
2006-07-13

Amine-aldehyde resins and uses thereof in separation processes

#196
20060108289
2006-05-25

Methods for removing metals from water

#197
20060081537
2006-04-20

Method and system for the treatment of liquid effluents containing pollutants in a suspension

#198
20060054552
2006-03-16

Membrane bioreactor, process and aerator

#199
20050145569
2005-07-07

Method for treatment of sludge from waterworks and wastewater treatment plants

#200
20050098499
2005-05-12

Process for pre-treating and desalinating sea water

#201
20050061725
2005-03-24

Membrane bioreactor, process and aerator

#202
20050000895
2005-01-06

Use of polymer as flocculation aid in membrane filtration

#203
17556821
2024-04-30

Use of hollow fiber filtration in conjunction with precipitant technologies to reclaim water from complex aqueous waste streams

#204
17518719
2023-07-04

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

#205
17245333
2021-12-21

Zero liquid discharge recycling system for PCB FAB, general metal finishing, and chemical milling

#206
17245276
2021-12-21

Zero liquid discharge recycling system for PCB FAB, general metal finishing, and chemical milling

#207
16539951
2021-12-21

Use of hollow fiber filtration in conjunction with precipitant technologies to reclaim water from complex aqueous waste streams