ClassID:

29926

B01D67/0016 - CPC Classification

Classification description:

Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus; Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching Coagulation

Recent Application in this class:
#1
20260108851
2026-04-23

POLYELECTROLYTE COACERVATE MEMBRANES AND METHODS FOR THE MANUFACTURE THEREOF

#2
20260070021
2026-03-12

ECO-FRIENDLY MEMBRANES FOR SEPARATIONS

#3
20260054228
2026-02-26

MIXED-MATRIX MEMBRANES WITH ASYMMETRIC FILLER DENSITY

#4
20250375739
2025-12-11

POLYMERIC MEMBRANE AND METHODS FOR THE PRODUCTION OF SAME

#5
20250256247
2025-08-14

COMPOSITE SEMIPERMEABLE MEMBRANE AND METHOD FOR PRODUCING COMPOSITE SEMIPERMEABLE MEMBRANE

#6
20250229233
2025-07-17

Virus-Removal Composite Membrane and Preparation Process Thereof

#7
20250196072
2025-06-19

POLY(QUINOLINE) MEMBRANES

#8
20250186951
2025-06-12

VENTING REINFORCED MEMBRANE, ESPECIALLY INTENDED FOR THE PROTECTION OF MEMS PACKAGES, MANUFACTURING METHOD THEREOF AND DIE CUT PART MADE WITH SUCH VENTING MEMBRANE

#9
20250108337
2025-04-03

PH-RESPONSIVE ADSORPTIVE COMPOSITE POLYMERIC MEMBRANES

#10
20250091015
2025-03-20

LARGE-SCALE FABRICATION TECHNIQUE FOR PIM-1 ASYMMETRIC MEMBRANES DOPED WITH LOW-MOLECULAR-WEIGHT POLYETHYLENE GLYCOL FOR GAS SEPARATION

#11
20250033002
2025-01-30

Porous Polybenzimidazole Membrane Supports for Composite Membranes

#12
20250001366
2025-01-02

POROUS MEMBRANE AND METHOD FOR MANUFACTURING POROUS MEMBRANE

#13
20240408553
2024-12-12

HOLLOW FIBER MEMBRANE, HOLLOW FIBER MEMBRANE MODULE AND VESICLE-CONTAINING SOLUTION

#14
20240325977
2024-10-03

CONCENTRATION METHOD FOR ANALYSIS SOLUTION USING FORWARD OSMOSIS MEMBRANE, AND ANALYSIS METHOD

#15
20240278185
2024-08-22

COMPOSITE HOLLOW FIBER AND RELATED METHODS AND PRODUCTS

#16
20240238737
2024-07-18

PEEK MEMBRANES AND RELATED METHODS AND DEVICES

#17
20240207794
2024-06-27

ASYMMETRIC POLYETHER SULFONE (PES) FILTER MEMBRANE FOR REMOVING VIRUS AND PREPARATION METHOD THEREFOR

#18
20240165566
2024-05-23

BICONTINUOUS HIGHLY INTERCONNECTED POROUS POLYMER ULTRAFILTRATION MEMBRANE AS WELL AS PREPARATION METHOD AND APPLICATION THEREOF

#19
20240157306
2024-05-16

HOLLOW-FIBER MEMBRANE AND METHOD MAKING THEREOF

#20
20240149225
2024-05-09

Fabrication of filtration membranes

#21
20240082790
2024-03-14

FILTRATION MEMBRANE FROM A BLEND COMPRISING POLYSULFONE AND POLYOXAZOLINE AND METHOD MAKING THEREOF

#22
20240024824
2024-01-25

METHOD FOR PRODUCING ASYMMETRIC POROUS MEMBRANE

#23
20240002609
2024-01-04

SOLUTION OF SULFONE POLYMERS IN N-TERT.-BUTYL-2-PYRROLIDONE FOR THE USE OF MEMBRANES

#24
20230381719
2023-11-30

Photothermal photocatalytic membrane for seawater desalination and uranium extraction and preparation method therefor

#25
20230372901
2023-11-23

DUAL-LAYER HOLLOW FIBER MEMBRANES AND METHODS OF MAKING AND USE

#26
20230347297
2023-11-02

POLYAMIDE POROUS MEMBRANE AND METHOD FOR PRODUCING SAME

#27
20230321610
2023-10-12

HOLLOW FIBER MEMBRANE FOR SEPARATING BLOOD PLASMA FROM BLOOD

#28
20230191340
2023-06-22

SUPERHYDROPHOBIC MEMBRANES AND METHODS OF MAKING AND USING SAME

#29
20230191339
2023-06-22

SUPERHYDROPHOBIC MEMBRANES AND METHODS OF MAKING AND USING SAME

#30
20230182083
2023-06-15

METHOD FOR PRODUCING A POLYELECTROLYTE COMPLEX MEMBRANE

#31
20230026019
2023-01-26

VIRUS REMOVAL MEMBRANE AND METHOD FOR MANUFACTURING VIRUS REMOVAL MEMBRANE

#32
20230024915
2023-01-26

Porous polybenzimidazole membrane supports for composite membranes

#33
20220410081
2022-12-29

Mechanically stable ultrafiltration membrane, and method for producing same

#34
20220410080
2022-12-29

Hollow fibre membrane with improved separating efficiency, and production of a hollow fibre membrane with improved separating efficiency

#35
20220401893
2022-12-22

POLY(QUINOLINE) MEMBRANES

#36
20220362719
2022-11-17

Filtration Filter And Method For Producing The Same

#37
20220362717
2022-11-17

POLYMERIC MEMBRANE AND METHODS FOR THE PRODUCTION OF SAME

#38
20220251366
2022-08-11

Isoporous self-assembled block copolymer films containing high molecular weight hydrophilic additives and methods of making the same

#39
20220152558
2022-05-19

Desalination membranes

#40
20220152557
2022-05-19

Desalination membranes

#41
20220118409
2022-04-21

METHOD OF PREPARTING MEMBRANES

#42
20220096964
2022-03-31

MEMBRANE, MEMBRANE CONTACTOR, APPARATUS AND METHOD FOR REMOVAL OF DISSOLVED OXYGEN FROM FLUID

#43
20220081379
2022-03-17

Continuous preparation method of 2,3,3,3-tetrafluoropropene

#44
20220056235
2022-02-24

Porous membrane, composite membrane, and method for producing porous membrane

#45
20220002508
2022-01-06

Method for creating a porous film through aqueous phase separation

#46
20210394125
2021-12-23

Crosslinked hollow-fibre membranes and new process for manufacturing the same

#47
20210354093
2021-11-18

MEMBRANES FOR MEMBRANE DISTILLATION DESALINATION TECHNOLOGY

#48
20210308627
2021-10-07

Dual-layer membrane and method for preparing same

#49
20210252458
2021-08-19

Alkali-Stable Nanofiltration Composite Membrane and Method of Manufacture Thereof

#50
20210245108
2021-08-12

Microporous membrane and methods to make same

#51
20210237000
2021-08-05

Perfluoropolymer hollow fiber composite membrane preparation method

#52
20210197135
2021-07-01

Hollow fiber membrane and its preparation method and application

#53
20210197134
2021-07-01

Filter membrane and device

#54
20210179450
2021-06-17

MEMBRANE FOR WATER PURIFICATION

#55
20210147628
2021-05-20

HYDROPHILIC POLYIMIDE, MEMBRANES PREPARED THEREFROM, AND USES THEREOF

#56
20210106953
2021-04-15

Porous polymeric membrane and related filters and methods

#57
20210040281
2021-02-11

FREE STANDING PLEATABLE BLOCK COPOLYMER MATERIALS AND METHOD OF MAKING THE SAME

#58
20210039051
2021-02-11

COMPOSITE SEMIPERMEABLE MEMBRANE AND PRODUCTION METHOD FOR COMPOSITE SEMIPERMEABLE MEMBRANE

#59
20200376445
2020-12-03

Polymer composition containing sulfonated carbon nanotube and sulfonated graphene oxide for fabricating hydrophilic separation membrane

#60
20200368696
2020-11-26

Agarose ultrafiltration membrane composites for size based separations

#61
20200298182
2020-09-24

Virus removal membrane and method for manufacturing virus removal membrane

#62
20200289990
2020-09-17

Composite hollow fiber and related methods and products

#63
20200269194
2020-08-27

POROUS MEMBRANE CONTAINING METAL-ORGANIC FRAMEWORKS

#64
20200238220
2020-07-30

Polyimide composition

#65
20200222858
2020-07-16

Filter membrane and device

#66
20200188857
2020-06-18

Membrane Manufacturing With A Cosolvent In The Polymer Dope Solution

#67
20200172694
2020-06-04

MICROPOROUS MATERIAL AND SYSTEMS AND METHODS FOR MAKING THE SAME

#68
20200156011
2020-05-21

Fabrication of green polymeric membranes

#69
20200129933
2020-04-30

Polyamide flat sheet membranes with microporous surface structure for nanoparticle retention

#70
20200078724
2020-03-12

Polymer blended membranes for sour gas separation

#71
20200070105
2020-03-05

Microporous polyamide-imide membranes

#72
20200070100
2020-03-05

VARIABLE-DIAMETER SPINNING NOZZLE AND PROCESSING DEVICES FOR HOLLOW FIBER MEMBRANE BUNDLE AND MEMBRANE MODULE

#73
20190381462
2019-12-19

Hollow fibre membrane with improved separating efficiency, and production of a hollow fibre membrane with improved separating efficiency

#74
20190367723
2019-12-05

Isoporous self-assembled block copolymer films containing high molecular weight hydrophilic additives and methods of making the same

#75
20190329183
2019-10-31

USE OF A SOLUTION OF POLYSULFONE IN N-ACYL-MORPHOLINE FOR THE FABRICATION OF UF MEMBRANES

#76
20190314767
2019-10-17

Porous hollow fiber membrane and method for producing porous hollow fiber membrane

#77
20190299166
2019-10-03

Macroporous or mesoporous polymer films in hollow fiber geometry

#78
20190276628
2019-09-12

Porous polyether sulfone film and production method therefor

#79
20190262781
2019-08-29

Fabrication of filtration membranes

#80
20190262777
2019-08-29

Macroporous polyvinylidene fluoride (PVDF) membranes

#81
20190255489
2019-08-22

Highly retentive polyamide hollow fiber membranes produced via controlled shrinkage

#82
20190247801
2019-08-15

Porous membrane and process for producing porous membrane

#83
20190177539
2019-06-13

Composition comprising aromatic and fluorinated polymers and use thereof

#84
20190176092
2019-06-13

Process for the production of solvent stable polymeric membranes

#85
20190168174
2019-06-06

Porous membranes

#86
20190168172
2019-06-06

Preparation of hand-carry gravity-driven water filter with high throughput and water disinfection performance

#87
20190168167
2019-06-06

Composite porous hollow fiber membrane, production method for composite porous hollow fiber membrane, composite porous hollow fiber membrane module, and operation method for composite porous hollow fiber membrane module

#88
20190097196
2019-03-28

Method for preparing aromatic polyamide porous membrane and aromatic polyamide porous membrane prepared thereby

#89
20190083941
2019-03-21

Method for producing laminated complex, and laminated complex

#90
20190083940
2019-03-21

Method for preparing membrane and associated membrane and filter element

#91
20190083937
2019-03-21

FILTER ELEMENT AND A METHOD OF MANUFACTURING THEREOF

#92
20190076790
2019-03-14

Porous membrane, porous membrane module, method for producing porous membrane, method for producing clarified liquid, and method for producing beer

#93
20190076787
2019-03-14

Microporous membrane and methods to make same

#94
20190070565
2019-03-07

Porous hollow fiber membrane

#95
20190015547
2019-01-17

Semipermeable membrane and method of manufacturing the same

#96
20190009222
2019-01-10

Liquid membrane conveying apparatus for preparing porous membrane

#97
20190009214
2019-01-10

Preparation, regeneration and application of a chelating microfiltration membrane

#98
20180345226
2018-12-06

Method of preparing membranes

#99
20180345211
2018-12-06

Polymer blended membranes for sour gas separation

#100
20180333675
2018-11-22

Co-cast thin film composite flat sheet membranes for gas separations and olefin/paraffin separations

#101
20180326360
2018-11-15

A POLYVINYL ALCOHOL POROUS SUPPORT AND METHOD

#102
20180318775
2018-11-08

Aqueous phase separation method

#103
20180290110
2018-10-11

Porous membrane

#104
20180284107
2018-10-04

Method for the production of poly(methyl methacrylate) (PMMA) membranes and uses thereof

#105
20180280889
2018-10-04

Doping of inorganic minerals to hydrophobic membrane surface

#106
20180272286
2018-09-27

PROCESS FOR MAKING MEMBRANES

#107
20180169593
2018-06-21

Agarose ultrafiltration membrane composites for size based separations

#108
20180169592
2018-06-21

Hollow fiber structures, methods of use thereof, methods of making, and pressure-retarded processes

#109
20180169590
2018-06-21

Hollow fiber membrane, and method for producing hollow fiber membrane

#110
20180169587
2018-06-21

Method for preparing an asymmetric membrane

#111
20180154315
2018-06-07

Method for making porous asymmetric membranes and associated membranes and separation modules

#112
20180142075
2018-05-24

Microporous polymeric composition

#113
20180085713
2018-03-29

Hollow fiber membrane and method of preparing the same

#114
20170348644
2017-12-07

METHOD FOR PRODUCING HOLLOW FIBER MEMBRANE AND HOLLOW FIBER MEMBRANE-SPINNING NOZZLE

#115
20170291147
2017-10-12

Mixed matrix membranes for olefin/paraffin separation and method of making thereof

#116
20170291146
2017-10-12

Polyimide composition and preparation method of separation membrane

#117
20170239627
2017-08-24

Process for making membranes

#118
20170216781
2017-08-03

Solvent-resistant separation membrane

#119
20170216779
2017-08-03

Carbon membrane for fluid separation, fluid separation membrane module, and method for producing carbon membrane for fluid separation

#120
20170165613
2017-06-15

HOLLOW FIBER MEMBRANES FORMED FROM TRANS-1,3,3,3-TETRAFLUOROPROPENE AND VINYLIDENE DIFLUORIDE FLUOROPOLYMERS

#121
20170144110
2017-05-25

COMPOSITE SEMI-PERMEABLE MEMBRANE USEFUL FOR WATER DESALINATION

#122
20170136421
2017-05-18

Ultrafiltration membranes and methods of making

#123
20170095775
2017-04-06

Antibacterial and antifouling polymeric separation membrane and preparation method thereof

#124
20170056835
2017-03-02

Porous asymmetric polyphenylene ether membranes and associated separation modules and methods

#125
20170043301
2017-02-16

Composite membrane with support comprising poly(phenylene ether) and amphilphilic polymer; method of making; and separation module thereof

#126
20170043297
2017-02-16

ASYMMETRIC POLY(PHENYLENE ETHER) CO-POLYMER MEMBRANE, SEPARATION MODULE THEREOF; AND METHODS OF MAKING

#127
20170021311
2017-01-26

Skinned, asymmetric poly(phenylene ether) co-polymer membrane; gas separation unit, and preparation method thereof

#128
20170021310
2017-01-26

Porous asymmetric polyphenylene ether membranes and associated separation modules and methods

#129
20160375412
2016-12-29

Self-wetting porous membranes (II)

#130
20160375409
2016-12-29

Self-wetting porous membranes (I)

#131
20160288056
2016-10-06

POLYMERIC ANTIFOULING ADDITIVES FOR MEMBRANES

#132
20160220965
2016-08-04

Porous membrane, blood purifying module incorporating porous membrane, and method for producing porous membrane

#133
20160138129
2016-05-19

Chelating polymeric membranes

#134
20160129399
2016-05-12

Doping of inorganic minerals to hydrophobic membrane surface

#135
20160121273
2016-05-05

Hydrophilised vinylidene fluoride-based porous hollow fibre membrane, and manufacturing method therefor

#136
20160059190
2016-03-03

LIQUID FILTERING STRUCTURE

#137
20160051939
2016-02-25

NANOCOMPOSITE ULTRA-THIN SEPARATION MEMBRANE AND METHOD FOR MANUFACTURING THE SAME

#138
20160038883
2016-02-11

POROUS FILM MANUFACTURING METHOD AND APPARATUS

#139
20160030892
2016-02-04

Polymer membrane for water treatment and method for manufacture of same, and water treatment method

#140
20160023171
2016-01-28

Multiblock copolymers and methods of use

#141
20160008772
2016-01-14

Long chain branched fluoropolymer membranes

#142
20150375180
2015-12-31

Separation of nanoparticles

#143
20150344655
2015-12-03

Membrane comprising self-assembled block copolymer and process for producing the same by spin coating (IIa)

#144
20150344654
2015-12-03

Self-assembled structure and membrane comprising block copolymer and process for producing the same by spin coating (IIIa)

#145
20150343397
2015-12-03

Membrane comprising self-assembled block copolymer and process for producing the same by spray coating (Ic)

#146
20150343396
2015-12-03

Membrane comprising self-assembled block copolymer and process for producing the same by hybrid casting (Ib)

#147
20150343395
2015-12-03

Membrane comprising self-assembled block copolymer and process for producing the same by hybrid casting (IIb)

#148
20150328593
2015-11-19

Microporous membrane and manufacturing process therefor

#149
20150298067
2015-10-22

Porous membrane and method for manufacturing the same

#150
20150266222
2015-09-24

Method for manufacturing hydrophilized hollow fiber membrane by continuous process using extruder

#151
20150258499
2015-09-17

Ultrafiltration membranes and methods of making

#152
20150217225
2015-08-06

Polyimide-based macromolecular compound and gas-separation asymmetrical hollow-fibre membrane comprising the same

#153
20150209735
2015-07-30

Porous polyamide hollow fiber membrane having very small pore diameter, and method for producing same

#154
20150190759
2015-07-09

Composite semipermeable membrane

#155
20150190756
2015-07-09

Asymmetric membranes

#156
20150182913
2015-07-02

Ultrafiltration membranes and methods of making

#157
20150075027
2015-03-19

Method for producing porous membrane and drying device of porous membrane

#158
20150014244
2015-01-15

COMPOSITE SEMIPERMEABLE MEMBRANE

#159
20140284267
2014-09-25

Abrasion-proof filtration membrane and method of producing said membrane

#160
20140163124
2014-06-12

Porous film manufacturing method and apparatus

#161
20140158610
2014-06-12

Composite mixed matrix membranes for membrane distillation and related methods of manufacture

#162
20140134518
2014-05-15

Microporous PVDF films

#163
20140048486
2014-02-20

MEMBRANE WITH MULTIPLE SIZE FIBERS

#164
20140008291
2014-01-09

Forward osmosis membrane and method of forming a forward osmosis membrane

#165
20130292867
2013-11-07

WASHING APPARATUS, AND PROCESS FOR PRODUCING POROUS MEMBRANE

#166
20130256229
2013-10-03

Large pore polymeric membrane

#167
20130224379
2013-08-29

Method for manufacturing sheet-shaped separation membrane

#168
20130193075
2013-08-01

Asymmetric membranes

#169
20130056420
2013-03-07

Multilayer microfiltration membrane

#170
20120325746
2012-12-27

POLYMER MEMBRANE FOR WATER TREATMENT AND METHOD FOR MANUFACTURE OF SAME, AND WATER TREATMENT METHOD

#171
20120296062
2012-11-22

Method for producing porous silicon molded bodies

#172
20120267304
2012-10-25

Membrane, method for manufacturing the same, and composite membrane including the same

#173
20120225202
2012-09-06

METHOD OF PRODUCING A POROUS MEMBRANE AND WATERPROOF, HIGHLY BREATHABLE FABRIC INCLUDING THE MEMBRANE

#174
20120076934
2012-03-29

Ultrafiltration membranes and methods of making

#175
20120065284
2012-03-15

Method of producing porous polymer film and porous polymer film produced by the method

#176
20120055867
2012-03-08

Doping of inorganic minerals to hydrophobic membrane surface

#177
20120045580
2012-02-23

Method for manufacturing a porous composite membrane

#178
20100330691
2010-12-30

Apparatus for producing surface enhanced membrane

#179
20100289174
2010-11-18

Method for removing diluent from a polymer extrudate, and its applications

#180
20100273032
2010-10-28

Method for removing diluent from an extrudate of a polymer solution

#181
20100230843
2010-09-16

Microfiltration membrane with improved filtration properties

#182
20100224553
2010-09-09

Ultrafiltration membrane

#183
20100176537
2010-07-15

Solution casting process

#184
20100089820
2010-04-15

Dialysis membrane with improved removal of middle molecules

#185
20090127186
2009-05-21

Separation membrane for use in treatment of liquid comprising aromatic ether polymer hydrophilized with hydrophilizing agent

#186
20090123641
2009-05-14

Reinforced ion-conductive membranes

#187
20090081518
2009-03-26

Solid electrolyte membrane, method and apparatus of producing the same, membrane electrode assembly, and fuel cell

#188
20080317946
2008-12-25

FUEL CELL MEMBRANES, GELS, AND METHODS OF FABRICATION

#189
20080241503
2008-10-02

Process for forming microporous membranes

#190
20080241451
2008-10-02

Reinforced capillary membranes and process for manufacturing thereof

#191
20080210624
2008-09-04

The Preparation Method Of Exo-Pressure Type Poly(Vinylidene Fluoride) Hollow Fiber Membrane Spinned Utilizing A Immersion-Coagulation Method And The Product Thereof

#192
20080197072
2008-08-21

Microfiltration Membrane With Improved Filtration Properties

#193
20080113242
2008-05-15

Microporous PVDF films

#194
20080113177
2008-05-15

Aromatic polyamide porous film, process for producing the same and secondary battery

#195
20080067127
2008-03-20

Method of sewage treatment and sewage treatment apparatus

#196
20080061001
2008-03-13

Method of stably producing microporous membrane and use thereof in method of separating and purifying nucleic acid

#197
20080004457
2008-01-03

Process for producing a polymer membrane, and polymer membrane

#198
20080004205
2008-01-03

Ultrafiltration membranes and methods of making

#199
20070296111
2007-12-27

Process for Producing Hollow Capillary Polymeric Membranes for the Treatment of Blood and Its Derivatives

#200
20070187320
2007-08-16

Polysulfone-base permselective hollow fiber membrane bundle and process for producing the same

#201
20070163950
2007-07-19

High-flux dialysis membrane with improved separation behaviour

#202
20070163949
2007-07-19

Dialysis membrane having improved ability for removal of middle molecules

#203
20070154701
2007-07-05

Polyurethane films and method of fabricating the same

#204
20070128425
2007-06-07

Reinforced ion-conductive membranes

#205
20070102350
2007-05-10

Method for producing polymeric membranes with high-recovery rate

#206
20070102348
2007-05-10

Method of producing a porous membrane and waterproof, highly breathable fabric including the membrane

#207
20070090051
2007-04-26

Hollow fiber membrane and method of producing the same

#208
20070084794
2007-04-19

Porous membrane and method for manufacturing the same

#209
20060276602
2006-12-07

Sulfonated aryl sulfonate matrices and method of production

#210
20060138042
2006-06-29

Heat-resistant film and composite ion-exchange membrane

#211
20060124530
2006-06-15

Anticoagulant and thrombo-resistant hollow fiber membranes for in-vivo plasmapheresis and ultrafiltration

#212
20060121267
2006-06-08

Process for producing porous film and porous film

#213
20060011063
2006-01-19

High temperature gas separation membrane suitable for OBIGGS applications

#214
20050258101
2005-11-24

Hollow fiber membrane and method of producing the same

#215
20050242021
2005-11-03

Hollow fibres

#216
20050202182
2005-09-15

Method for producing fabric-reinforced capillary membranes, in particular for ultrafiltration

#217
20050181147
2005-08-18

Production method of cellulose film, cellulose film, protective film for polarizing plate, optical functional film, polarizing plate, and liquid crystal display

#218
20050164025
2005-07-28

Semipermeable hydrophilic membrane

#219
20050121384
2005-06-09

Specialized hollow fiber membranes for in-vivo plasmapheresis and ultrafiltration

#220
20050118479
2005-06-02

Electrolyte film and solid polymer fuel cell using the same

#221
20050103716
2005-05-19

Method of making and using a hollow fiber microfiltration membrane

#222
20050058821
2005-03-17

Microporous PVDF films

#223
20050011834
2005-01-20

Highly asymmetric, hydrophilic, microfiltration membranes having large pore diameters