ClassID:

29927

B01D67/0018 - 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 Thermally induced processes [TIPS]

Recent Application in this class:
#1
20260103568
2026-04-16

POLYARYLETHERSULFONE COPOLYMER HAVING IMPROVED HYDROPHILICITY

#2
20250249410
2025-08-07

HIGHLY SELECTIVE ACID-RESISTANT POLYAMIDE NANOFILTRATION MEMBRANE CONTAINING TROGER'S BASE AND PREPARATION METHOD THEREOF

#3
20250177925
2025-06-05

Hollow Fiber Membranes and Preparation Method and Use Thereof

#4
20250161883
2025-05-22

POROUS HOLLOW FIBER MEMBRANE AND METHOD FOR PRODUCING POROUS HOLLOW FIBER MEMBRANE

#5
20250145769
2025-05-08

CROSS-LINKED ARYLIMIDAZOLIUM POLYMERS AND USES THEREOF

#6
20240216871
2024-07-04

HOLLOW FIBER MEMBRANE AND MANUFACTURING METHOD THEREFOR

#7
20240207790
2024-06-27

CLOSED LOOP AZEOTROPE-BASED SOLVENT EXTRACTION AND RECOVERY METHOD IN THE PRODUCTION OF MICROPOROUS MEMBRANES

#8
20230398504
2023-12-14

Acryloyloxy-terminated polydimethylsiloxane (AC-PDMS)-based thin-film composite (TFC) membrane, and preparation method and use thereof

#9
20230390710
2023-12-07

MEMBRANES MADE USING FINE POWDERS

#10
20220390335
2022-12-08

A Multi-Layered Membrane And A Method Of Preparing The Same

#11
20220288538
2022-09-15

POROUS MEMBRANE, PRODUCTION METHOD THEREFOR, SEPARATION MEMBRANE, LAYERED MODULE, AND GAS PERMEATION MODULE

#12
20220062827
2022-03-03

CO-CASTING ULTRAFILTRATION MEMBRANES WITH DISORDERED BLOCK POLYMER SELECTIVE LAYERS

#13
20210178338
2021-06-17

ULTRATHIN-FILM COMPOSITE MEMBRANE BASED ON THERMALLY REARRANGED POLY(BENZOXAZOLE-IMIDE) COPOLYMER, AND PRODUCTION METHOD THEREFOR

#14
20210095122
2021-04-01

Thermally-rearranged polymer blends for gas separation membranes

#15
20200261855
2020-08-20

ASYMMETRIC COMPOSITE MEMBRANES AND USES THEREOF

#16
20200246756
2020-08-06

Porous hollow-fiber membrane and production process therefor

#17
20200129933
2020-04-30

Polyamide flat sheet membranes with microporous surface structure for nanoparticle retention

#18
20200055005
2020-02-20

Method of preparing hybrid membrane

#19
20200030753
2020-01-30

Zeolite membrane having AFX structure, membrane structure, and method for manufacturing membrane structure

#20
20190284321
2019-09-19

Heat-Induced Grafting Of Nonwovens For High Capacity Ion Exchange Separation

#21
20190217253
2019-07-18

Self-coiling hollow fibre membrane

#22
20190201822
2019-07-04

ELECTROSPUN HIGH TEMPERATURE ELASTOMER MATERIALS FOR WATER FILTER MEDIA

#23
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

#24
20190060787
2019-02-28

Hollow-fiber membrane for fuel degassing

#25
20190022601
2019-01-24

POROUS HOLLOW FIBER MEMBRANE, METHOD FOR PRODUCING THE SAME, AND FILTRATION METHOD

#26
20180369757
2018-12-27

Porous hollow fiber membrane

#27
20180284107
2018-10-04

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

#28
20180056247
2018-03-01

PVDF POWDER FOR LIQUID SLURRIES

#29
20170312703
2017-11-02

Microporous polyvinyl fluoride planar membrane and production thereof

#30
20170296977
2017-10-19

Development of nanofiltration system with La/SnO—TiOnanoparticles

#31
20170136421
2017-05-18

Ultrafiltration membranes and methods of making

#32
20160310907
2016-10-27

Multilayer separation membrane

#33
20160114295
2016-04-28

METHOD FOR MANUFACTURING ASYMMETRIC POLYVINLYLIDENEFLUORIDE HOLLOW FIBER MEMBRANE AND HOLLOW FIBER MEMBRANE MANUFACTURED THEREFROM

#34
20160089638
2016-03-31

Microporous polyvinylidene fluoride membrane

#35
20150343398
2015-12-03

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

#36
20150306539
2015-10-29

MICROPOROUS LAMINATED MEMBRANE AND METHOD FOR PRODUCING THE SAME

#37
20150258499
2015-09-17

Ultrafiltration membranes and methods of making

#38
20150209736
2015-07-30

Composite separation membrane

#39
20150182913
2015-07-02

Ultrafiltration membranes and methods of making

#40
20150165390
2015-06-18

Carbon-dioxide-separating membrane

#41
20140335421
2014-11-13

Microporous membrane of polyethylene-based composite material and preparation method thereof

#42
20140221629
2014-08-07

Ultrafiltration membranes and methods of making

#43
20140220246
2014-08-07

Ultrafiltration membranes and methods of making

#44
20140083929
2014-03-27

Microporous modified-polytetrafluoroethylene membrane, porous-modified-polytetrafluoroethylene-membrane composite and production process thereof, and separation membrane element

#45
20140048486
2014-02-20

MEMBRANE WITH MULTIPLE SIZE FIBERS

#46
20130284664
2013-10-31

Separation membrane for water treatment and production method for same

#47
20130256229
2013-10-03

Large pore polymeric membrane

#48
20130184503
2013-07-18

Membrane having a pore-free separating layer and use and method of manufacturing a membrane

#49
20120276294
2012-11-01

Method for making liquid separation membrane

#50
20120160771
2012-06-28

Separation material

#51
20120076934
2012-03-29

Ultrafiltration membranes and methods of making

#52
20110318671
2011-12-29

Proton-conducting membrane and use thereof

#53
20110290717
2011-12-01

Membrane post treatment

#54
20110168630
2011-07-14

Graft copolymers, methods for grafting hydrophilic chains onto hydrophobic polymers, and articles thereof

#55
20110168628
2011-07-14

Polyamide hollow fiber membrane, and production method thereof

#56
20110130611
2011-06-02

Process for membrane separation of an olefin that is contained in a hydrocarbon mixture

#57
20110091717
2011-04-21

METHOD FOR IN SITU FORMATION OF METAL NANOCLUSTERS WITHIN A POROUS SUBSTRATE FIELD

#58
20100294713
2010-11-25

Separation membrane comprising polyethersulfone, process for producing thereof, and dope solution for membrane production

#59
20100261801
2010-10-14

METHOD FOR MAKING A FUNCTIONALIZED MEMBRANE

#60
20100221522
2010-09-02

Microporous membranes having a relatively large average pore size and the methods of making the same

#61
20100213117
2010-08-26

Membrane post treatment

#62
20100210160
2010-08-19

HYDROPHILIC POROUS SUBSTRATES

#63
20100189915
2010-07-29

METHOD OF MAKING FUNCTIONALIZED SUBSTRATES

#64
20100093879
2010-04-15

High selectivity polymer-nano-porous particle membrane structures

#65
20090283469
2009-11-19

Polyvinylidene fluoride hollow fiber microporous membrane and process for production of the same

#66
20090252948
2009-10-08

Method of manufacturing membranes and the resulting membranes

#67
20090214921
2009-08-27

Proton-conducting membrane and use thereof

#68
20090214920
2009-08-27

Proton-conducting membrane and use thereof

#69
20090206035
2009-08-20

Vinylidene Fluoride Resin Hollow Filament Porous Membrane, Water Filtration Method Using the Same, and Process for Producing Said Vinylidene Fluoride Resin Hollow Filament Porous Membrane

#70
20090023825
2009-01-22

Microporous polyethylene film and method of producing the same

#71
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

#72
20080156722
2008-07-03

Porous hollow-yarn membrane of vinylidene fluoride resin

#73
20080156191
2008-07-03

Hollow fiber membrane contact apparatus and process

#74
20080020192
2008-01-24

Multilayer porous membrane and process

#75
20080004205
2008-01-03

Ultrafiltration membranes and methods of making

#76
20070241050
2007-10-18

Porous water filtration membrane of vinylidene fluoride resin hollow fiber and process for production thereof

#77
20070219322
2007-09-20

Graft copolymers, methods for grafting hydrophilic chains onto hydrophobic polymers, and articles thereof

#78
20070216057
2007-09-20

Poly(ethylene chlorotrifluoroethylene) membranes

#79
20070215540
2007-09-20

Hollow-fiber porous water filtration membrane of vinylidene fluoride resin and process for producing the same

#80
20070182791
2007-08-09

Polyelectrolyte composition for humidity senser, polyelectrolyte ink and preparation method of poly electrolyte membrane for sensor by inkjet printing

#81
20070157812
2007-07-12

Gas transfer membrane

#82
20070154703
2007-07-05

Functionalized substrates

#83
20070154651
2007-07-05

METHOD OF MAKING FUNCTIONALIZED SUBSTRATES

#84
20070148552
2007-06-28

Microporous membrane made from polyolefin

#85
20070090051
2007-04-26

Hollow fiber membrane and method of producing the same

#86
20070007197
2007-01-11

System and method for synthesizing a polymeric membrane

#87
20060264355
2006-11-23

Separating material

#88
20060229421
2006-10-12

Powders or manufactured articles having a surface hydrophilicity

#89
20060196830
2006-09-07

PRE-METERED, UNSUPPORTED MULTILAYER MICROPOROUS MEMBRANE

#90
20060177643
2006-08-10

Microporous polyethylene film

#91
20060157404
2006-07-20

Membrane post treatment

#92
20060148915
2006-07-06

Microporous materials and methods of making

#93
20060099414
2006-05-11

Functional porous fibres

#94
20060032812
2006-02-16

Pre-metered, unsupported multilayer microporous membrane

#95
20060009538
2006-01-12

Microporous polyethylene film and method of producing the same

#96
20060008636
2006-01-12

Microporous polyethylene film and method of producing the same

#97
20050258101
2005-11-24

Hollow fiber membrane and method of producing the same

#98
20050247621
2005-11-10

Method of manufacturing membranes and the resulting membranes

#99
20050242021
2005-11-03

Hollow fibres

#100
20050230856
2005-10-20

Hollow fiber membrane contact apparatus and process

#101
20050155926
2005-07-21

System and method for synthesizing a polymer membrane

#102
20050145107
2005-07-07

Process for producing polyolefin membrane with integrally asymmetrical structure

#103
20050142280
2005-06-30

System and method for synthesizing a polymer membrane

#104
20050098494
2005-05-12

Poly(ethylene chlorotrifluoroethylene) membranes

#105
20050032982
2005-02-10

Modified membranes

#106
20050029186
2005-02-10

Modified membranes

#107
20050029185
2005-02-10

Modified membranes

#108
20050003033
2005-01-06

Extruder with condenser

#109
18134194
2023-09-26

Hydrophobic novel biofilm membrane modified with a spiropolyurethane