ClassID:

30885

B01D2323/18 - CPC Classification

Classification description:

Details relating to membrane preparation; Use of additives Pore-control agents or pore formers

Recent Application in this class:
#1
20260014523
2026-01-15

METHODS FOR MANUFACTURING AN APPARATUS FOR BIOLOGICAL FLUID PURIFICATION WITH BIOCOMPATIBLE MEMBRANES

#2
20250382728
2025-12-18

DOUBLE-LAYER FUNCTIONALIZED HOLLOW FIBER MEMBRANE AND PREPARATION METHOD THEREOF

#3
20250235828
2025-07-24

LIGHT- AND OXYGEN-PERMEABLE MEMBRANE AND PREPARATION METHOD AND USE THEREOF

#4
20250153112
2025-05-15

THREE-DIMENSIONAL FILTRATION COMPOSITES AND METHODS OF MANUFACTURING

#5
20240342665
2024-10-17

CELLULOSE NANOFIBER (CNF) STABILIZED MEMBRANES AND METHODS OF MAKING THEREOF

#6
20240293777
2024-09-05

BIOLOGICAL FLUID PURIFICATION WITH BIOCOMPATIBLE MEMBRANES

#7
20230347295
2023-11-02

METHOD OF MANUFACTURING PVDF COMPOSITE SEPARATION MEMBRANE AND PVDF COMPOSITE SEPARATION MEMBRANE MANUFACTURED USING THE SAME

#8
20230302411
2023-09-28

ASYMMETRIC HYDROPHOBIC POLYOLEFIN HOLLOW FIBER MEMBRANE, PREPARING METHOD, AND USE OF THE SAME

#9
20230024252
2023-01-26

POROUS SEPARATION MEMBRANE

#10
20220410077
2022-12-29

Method for Producing a Gas Separation Membrane

#11
20220274069
2022-09-01

CONDUCTIVE MEMBRANE AND PREPARATION METHOD THEREOF

#12
20220267497
2022-08-25

Membrane and polymer for the manufacture thereof

#13
20220226784
2022-07-21

Hollow Fiber Membrane

#14
20220152564
2022-05-19

Nanofiltration composite membranes

#15
20220118409
2022-04-21

METHOD OF PREPARTING MEMBRANES

#16
20220002508
2022-01-06

Method for creating a porous film through aqueous phase separation

#17
20210354093
2021-11-18

MEMBRANES FOR MEMBRANE DISTILLATION DESALINATION TECHNOLOGY

#18
20210331119
2021-10-28

Porous membrane for water treatment and method for preparing the same

#19
20210138408
2021-05-13

FLAT SHEET POROUS MEMBRANE

#20
20210023508
2021-01-28

Graphene membrane filter for gas separation

#21
20200222860
2020-07-16

METHOD FOR PREPARING MEMBRANE SELECTIVE LAYERS BY INTERFACIAL FREE RADICAL POLYMERIZATION

#22
20200206693
2020-07-02

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

#23
20200197877
2020-06-25

Composite body

#24
20200023321
2020-01-23

Separation film and production method therefor

#25
20190299166
2019-10-03

Macroporous or mesoporous polymer films in hollow fiber geometry

#26
20190252664
2019-08-15

Microporous membrane lithium ion secondary battery and method of producing the microporous membrane

#27
20190176097
2019-06-13

Thin-sheet zeolite membrane and methods for making the same

#28
20190126209
2019-05-02

Reinforced oil-absorptive membrane material, unit and preparation method thereof

#29
20190105611
2019-04-11

Polyvinylidene fluoride/ultra-high molecular weight polyethylene blend microporous membrane and preparation method thereof

#30
20190022596
2019-01-24

Catalyst-containing oxygen transport membrane

#31
20190009214
2019-01-10

Preparation, regeneration and application of a chelating microfiltration membrane

#32
20190001276
2019-01-03

COMPOSITE CARBON MOLECULAR SIEVE MEMBRANES HAVING ANTI-SUBSTRUCTURE COLLAPSE PARTICLES LOADED IN A CORE THEREOF

#33
20180345226
2018-12-06

Method of preparing membranes

#34
20180305827
2018-10-25

Hierarchically structured, nitrogen-doped carbon membranes

#35
20180272286
2018-09-27

PROCESS FOR MAKING MEMBRANES

#36
20180179352
2018-06-28

Ultra-thin polymer film and porous ultra-thin polymer film

#37
20180154315
2018-06-07

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

#38
20180154314
2018-06-07

Method for preparing the network-pore polyvinylidene fluoride membrane based on polyvinyl alcohol gel

#39
20180142075
2018-05-24

Microporous polymeric composition

#40
20170312699
2017-11-02

Polyvinylidene fluoride hollow fiber membrane of in-situ pore-forming agent and preparation method therefor

#41
20170274327
2017-09-28

Composite nanoparticle stabilized core carbon molecular sieve hollow fiber membranes having improved permeance

#42
20170232402
2017-08-17

Hydrophobic-oleophilic hollow fiber composite membrane and preparing method thereof

#43
20170216780
2017-08-03

High toughness hollow fiber membranes based on vinylidene fluoride polymers

#44
20170203257
2017-07-20

Composite perfluorohydrocarbon membranes, their preparation and use

#45
20170174857
2017-06-22

Method of manufacturing porous fluorine-containing polymer membrane

#46
20170090293
2017-03-30

Filtration filter, filtration method, production method of purified liquid chemical product for lithography, and method of forming resist pattern

#47
20160354729
2016-12-08

MEMBRANES COMPRISING GRAPHENE

#48
20160310912
2016-10-27

Polyimide membranes made of polymerization solutions

#49
20160151747
2016-06-02

Porous Nanomembranes

#50
20160151746
2016-06-02

Composite carbon molecular sieve membranes having anti-substructure collapse particles loaded in a core thereof

#51
20160072110
2016-03-10

Method for producing porous polyimide film, porous polyimide film and separator using same

#52
20150336059
2015-11-26

Method for producing a filter intended to filter nanoparticles, obtained filter and associated method for the collection and quantitative analysis of nanoparticles

#53
20150274598
2015-10-01

Method of making a hydrogen transport membrane and article

#54
20150265975
2015-09-24

Thin-sheet zeolite membrane and methods for making the same

#55
20150246328
2015-09-03

Composite porous polymeric membrane with high void volume

#56
20150246326
2015-09-03

Porous polymeric membrane with high void volume

#57
20150246325
2015-09-03

Hollow fiber membrane having hexagonal voids

#58
20150246324
2015-09-03

Charged hollow fiber membrane having hexagonal voids

#59
20150246323
2015-09-03

Charged porous polymeric membrane with high void volume

#60
20150246322
2015-09-03

Porous polymeric membrane with high void volume

#61
20150246321
2015-09-03

Porous polymeric membrane with high void volume

#62
20150218334
2015-08-06

POROUS MEMBRANES MADE OF CROSS-LINKABLE SILICONE COMPOSITIONS

#63
20150190756
2015-07-09

Asymmetric membranes

#64
20150056399
2015-02-26

Ultra-thin polymer film, and porous ultra-thin polymer film

#65
20140339166
2014-11-20

High throughput membrane with channels

#66
20140332462
2014-11-13

Flux-enhanced hierarchical porous membrane for oil-water nanoemulsion separation

#67
20140311968
2014-10-23

Preparation method of perfluorinated polymer hollow fiber membrane

#68
20140182334
2014-07-03

Porous waste glass membrane

#69
20140008291
2014-01-09

Forward osmosis membrane and method of forming a forward osmosis membrane

#70
20140007772
2014-01-09

Method of making a hydrogen transport membrane, and article

#71
20130193075
2013-08-01

Asymmetric membranes

#72
20130171499
2013-07-04

Porous membrane and method for manufacturing the same

#73
20130047844
2013-02-28

Polymers, polymer membranes and methods of producing the same

#74
20120123079
2012-05-17

POLYIMIDE MEMBRANES MADE OF POLYMERIZATION SOLUTIONS

#75
20120111790
2012-05-10

Preparation of high performance ultra filtration hollow fiber membrane

#76
20110298165
2011-12-08

Addition of (A) blocking agent(s) in a ceramic membrane for blocking crystalline growth of grains during atmospheric sintering

#77
20110297612
2011-12-08

POROUS MEMBRANES WITH MULTIPLE ZONES HAVING DIFFERENT PORE SIZES

#78
20110192788
2011-08-11

Method for producing porous thermosetting resin sheet, porous thermosetting resin sheet and composite semipermeable membrane using same

#79
20110189472
2011-08-04

Uniaxially and Biaxially-Oriented Polytetrafluoroethylene Structures

#80
20110155662
2011-06-30

Thin, porous metal sheets and methods for making the same

#81
20110120307
2011-05-26

Composite perfluorohydrocarbon membranes, their preparation and use

#82
20100243556
2010-09-30

High-throughput asymmetric membrane

#83
20100219079
2010-09-02

METHODS FOR MAKING MEMBRANES BASED ON ANODIC ALUMINUM OXIDE STRUCTURES

#84
20100156002
2010-06-24

High-throughput asymmetric membrane

#85
20100070026
2010-03-18

STENT WITH POROUS MEMBRANE AND MANUFACTURING METHOD THEREOF

#86
20100050875
2010-03-04

Gas exchange membrane in particular for use in an artificial lung and method for the production of a gas exchange membrane of this type

#87
20100031822
2010-02-11

Hydrogen separation membrane on a porous substrate

#88
20090308805
2009-12-17

Preparation of high performance ultra filtration hollow fiber membrane

#89
20090252948
2009-10-08

Method of manufacturing membranes and the resulting membranes

#90
20090173687
2009-07-09

Extruded porous substrate and products using the same

#91
20090136709
2009-05-28

Extruded porous substrate having inorganic bonds

#92
20090131244
2009-05-21

Inorganic structure for molecular separations

#93
20080299377
2008-12-04

Method for preparing a porous inorganic coating on a porous support using certain pore formers

#94
20080277632
2008-11-13

Method of preparing a thin ceramic composition with two materials, the composition thus obtained and the constituent electrochemical cell and membrane

#95
20080261017
2008-10-23

Hollow Fiber Membrane and Preparing Method Thereof

#96
20080216650
2008-09-11

Synthesis of zeolites and zeolite membranes using multiple structure directing agents

#97
20080210626
2008-09-04

Porous cured epoxy resin

#98
20080199369
2008-08-21

Extruded porous substrate and products using the same

#99
20080171156
2008-07-17

POROUS MEMBRANE AND RECORDING MEDIUM COMPRISING SAME

#100
20080063794
2008-03-13

Mesoporous permeation layers for use on active electronic matrix devices

#101
20080020192
2008-01-24

Multilayer porous membrane and process

#102
20070270301
2007-11-22

Thermal method for fabricating a hydrogen separation membrane on a porous substrate

#103
20070256969
2007-11-08

Composite Perfluorohydrocarbon Membranes, Their Preparation and Use

#104
20070228323
2007-10-04

Addition of (a) blocking agent(s) in a ceramic membrane for clocking crystalline growth of grains during atmospheric sintering

#105
20070216057
2007-09-20

Poly(ethylene chlorotrifluoroethylene) membranes

#106
20070187319
2007-08-16

High-throughput asymmetric membrane

#107
20070157812
2007-07-12

Gas transfer membrane

#108
20070152364
2007-07-05

Process for extruding a porous substrate

#109
20070111878
2007-05-17

Extrudable mixture for forming a porous block

#110
20070110645
2007-05-17

Extruded porous substrate having inorganic bonds

#111
20070108647
2007-05-17

Method of forming a porous substrate having inorganic bonds

#112
20070107395
2007-05-17

Extruded porous substrate and products using the same

#113
20070087120
2007-04-19

Fluid diffusion layers

#114
20070042225
2007-02-22

Supported ceramic membranes and electrochemical cells including the same

#115
20060292324
2006-12-28

Uniaxially and biaxially-oriented polytetrafluoroethylene structures

#116
20060211567
2006-09-21

Method and slip for production of a moulded body from ceramic material ceramic moulded body and use of such a moulded body

#117
20060208377
2006-09-21

Method of making a ceramic composite

#118
20060201342
2006-09-14

Use of porous metal membrane for treating liquid foods

#119
20060096922
2006-05-11

Lyotropic liquid crystal nanofiltration membranes

#120
20060033243
2006-02-16

Fabricating structures in micro-fluidic channels based on hydrodynamic focusing

#121
20050258578
2005-11-24

Method for producing high purity low dielectric constant ceramic and hybrid ceramic films

#122
20050253312
2005-11-17

Process for manufacturing of ceramic catalytic membrane reactors by co-extrusion

#123
20050247621
2005-11-10

Method of manufacturing membranes and the resulting membranes

#124
20050212160
2005-09-29

Method of processing colloidal size polytetrafluoroethylene resin particles to produce biaxially-oriented structures

#125
20050167354
2005-08-04

Porous membrane microstructure devices and methods of manufacture

#126
20050164283
2005-07-28

Mesoporous permeation layers for use on active electronic matrix devices

#127
20050098494
2005-05-12

Poly(ethylene chlorotrifluoroethylene) membranes

#128
20050023735
2005-02-03

Method for producing a silicon nitride filter

#129
20050019302
2005-01-27

Polymer based permeable membrane for removal of ions

#130
17862810
2022-11-29

Composite covalent organic framework membranes