ClassID:

29932

B01D67/003 - CPC Classification

Classification description:

Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus; Organic membrane manufacture by inducing porosity into non porous precursor membranes by selective elimination of components, e.g. by leaching

Recent Application in this class:
#1
20250161883
2025-05-22

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

#2
20240399314
2024-12-05

A MEMBRANE (M) COMPRISING A SULFONATED POLY(ARYLENE ETHER SULFONE) POLYMER (SP) AND A NON-SULFONATED POLY(ARYLENE SULFONE) POLYMER (P)

#3
20240342665
2024-10-17

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

#4
20240238737
2024-07-18

PEEK MEMBRANES AND RELATED METHODS AND DEVICES

#5
20240207790
2024-06-27

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

#6
20240097277
2024-03-21

METHOD OF MAKING A MICROPOROUS MATERIAL

#7
20240084091
2024-03-14

POROUS FILM

#8
20240017219
2024-01-18

POLYMER COMPOSITION AND METHOD FOR MANUFACTURING MEMBRANES THEREFROM

#9
20230416486
2023-12-28

MICROPOROUS ARTICLES AND CORRESPONDING FORMATION METHODS

#10
20230390710
2023-12-07

MEMBRANES MADE USING FINE POWDERS

#11
20230381720
2023-11-30

MICROPOROUS MEMBRANES, UNDERLAYMENT, ROOFING, FLASHING, WRAP, AND METHODS FOR MAKING AND USING THE SAME

#12
20230182085
2023-06-15

POROUS MEMBRANE LAMINATE, FILTER ELEMENT AND METHOD OF MANUFACTURING POROUS MEMBRANE LAMINATE

#13
20230155247
2023-05-18

Method of making a microporous material

#14
20230138216
2023-05-04

Filter membrane and method for making the same

#15
20220410075
2022-12-29

SOLVENT-FREE PRODUCTION OF POROUS POLYMER STRUCTURES

#16
20220267587
2022-08-25

MEMBRANE COMPRISING A BLEND OF POLYARYLETHERSULFONE AND POLYARYLETHERKETONE AND METHOD FOR MANUFACTURING THEREOF

#17
20220242821
2022-08-04

Production method for resist composition purified product, resist pattern forming method, and resist composition purified product

#18
20220203305
2022-06-30

Room-temperature selective swelling method of pore-forming used for preparing separation membranes

#19
20210346846
2021-11-11

Polymer membranes

#20
20210331119
2021-10-28

Porous membrane for water treatment and method for preparing the same

#21
20210197133
2021-07-01

POROUS MEMBRANE

#22
20210113970
2021-04-22

Microporous membranes, underlayment, roofing, flashing, wrap, and methods for making and using the same

#23
20200346169
2020-11-05

Porous film and method for producing same

#24
20200269191
2020-08-27

PROCESS FOR PREPARATION OF A POROUS MEMBRANE FROM AT LEAST ONE THERMOPLASTIC POLYMER AND AT LEAST ONE WATER SOLUBLE POLYMER

#25
20200129931
2020-04-30

Thin film composite membrane with nano-sized bubbles having enhanced membrane permeability, preparation methods and uses thereof

#26
20190105611
2019-04-11

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

#27
20190046931
2019-02-14

Separation membrane

#28
20190022595
2019-01-24

A METHOD OF FORMING A THIN FILM THROUGH-HOLE MEMBRANE

#29
20190001281
2019-01-03

Grafted islands-in-the-sea nonwoven for high capacity ion exchange bioseparation

#30
20180371687
2018-12-27

Waterproof and breathable, porous membranes

#31
20180311622
2018-11-01

Purification method for purifying liquid, purification method for purifying silicon compound-containing liquid, method for producing silylating agent liquid, film forming material or diffusing agent composition, filter medium and filter device

#32
20180272286
2018-09-27

PROCESS FOR MAKING MEMBRANES

#33
20180250640
2018-09-06

POROUS FILM AND METHOD FOR PRODUCING SAME

#34
20180179352
2018-06-28

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

#35
20180085713
2018-03-29

Hollow fiber membrane and method of preparing the same

#36
20180043313
2018-02-15

Fluoropolymers and membranes comprising fluoropolymers (I)

#37
20180029276
2018-02-01

Method of making a microporous material

#38
20170274377
2017-09-28

Micro nanoporous membrane, preparing method thereof and microfluidic device using thereof

#39
20170266626
2017-09-21

Porous membrane

#40
20170256766
2017-09-07

Method for producing porous polyimide film

#41
20170174857
2017-06-22

Method of manufacturing porous fluorine-containing polymer membrane

#42
20170167025
2017-06-15

Fluid permeable anodic oxide film and fluid permeable body using anodic oxide film

#43
20170151584
2017-06-01

Porous resin structures

#44
20170149038
2017-05-25

Polyolefin multilayer microporous membrane and battery separator

#45
20170129789
2017-05-11

Hydrocarbon waste stream purification processes using microporous materials having filtration and adsorption properties

#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
20160375385
2016-12-29

METHOD FOR PREPARING A POROUS FLUOROPOLYMER AND PREPARING AN ARTICLE OF SAME

#48
20160200632
2016-07-14

Method of making nanoporous structures

#49
20160193385
2016-07-07

MESOSTRUCTURED POLYMER MEMBRANES AND OTHER ARTICLES

#50
20160141574
2016-05-19

Method of manufacturing separator for electrochemical device and separator for electrochemical device manufactured thereby

#51
20160096152
2016-04-07

Substrate for liquid filter

#52
20160072110
2016-03-10

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

#53
20160038883
2016-02-11

POROUS FILM MANUFACTURING METHOD AND APPARATUS

#54
20150336058
2015-11-26

NANOPOROUS FILTRATION MEMBRANES

#55
20150298030
2015-10-22

Method for preparing a porous fluoropolymer and preparing an article of same, a rigid porous fluoropolymer flow sleeve and a method of controlling flow

#56
20150246328
2015-09-03

Composite porous polymeric membrane with high void volume

#57
20150246326
2015-09-03

Porous polymeric membrane with high void volume

#58
20150246325
2015-09-03

Hollow fiber membrane having hexagonal voids

#59
20150246324
2015-09-03

Charged hollow fiber membrane having hexagonal voids

#60
20150246323
2015-09-03

Charged porous polymeric membrane with high void volume

#61
20150246322
2015-09-03

Porous polymeric membrane with high void volume

#62
20150246321
2015-09-03

Porous polymeric membrane with high void volume

#63
20150240045
2015-08-27

Microporous and hydrophobic polymeric hollow fiber membranes and methods for preparation thereof

#64
20150232506
2015-08-20

Porous hollow fiber membrane

#65
20150217219
2015-08-06

Processes for forming composite structures with a two-dimensional material using a porous, non-sacrificial supporting layer

#66
20150056399
2015-02-26

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

#67
20140363572
2014-12-11

Composite membrane

#68
20140361457
2014-12-11

Process for producing microporous polyolefin film

#69
20140339166
2014-11-20

High throughput membrane with channels

#70
20140332462
2014-11-13

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

#71
20140311968
2014-10-23

Preparation method of perfluorinated polymer hollow fiber membrane

#72
20140251377
2014-09-11

Process for continuously washing a hollow fiber membrane for depleting residuals

#73
20140246356
2014-09-04

Fluid emulsion purification processes using microporous materials having filtration and adsorption properties

#74
20140163124
2014-06-12

Porous film manufacturing method and apparatus

#75
20140048477
2014-02-20

Hybrid porous structured material, membrane including the same, and method of preparing hybrid porous structured material

#76
20130252067
2013-09-26

Method of producing polyolefin microporous membrane and separator for lithium ion battery

#77
20130248442
2013-09-26

METHOD FOR PRODUCING POROUS EPOXY RESIN SHEET

#78
20130180920
2013-07-18

Nanoporous materials, manufacture of nanoporous materials and applications of nanoporous materials

#79
20130134081
2013-05-30

Hybrid porous structure, method of preparing hybrid porous structure, separation membrane including hybrid porous structure, and water treatment device including membrane

#80
20130112613
2013-05-09

Hybrid porous structured material, membrane including the same, and method of preparing hybrid porous structure material

#81
20130049246
2013-02-28

Process for production of porous membrane

#82
20130047844
2013-02-28

Polymers, polymer membranes and methods of producing the same

#83
20130041055
2013-02-14

Nanoporous linear polyethylene membranes and block copolymer precursors for same

#84
20120308807
2012-12-06

Porous Materials

#85
20120252912
2012-10-04

Process for producing microporous polymeric object, and microporous polymeric object and separation membrane

#86
20120228238
2012-09-13

Nozzle device and nozzle for atomisation and/or filtration and methods for using the same

#87
20120201988
2012-08-09

Thin wall expandable polymer tubes having improved axial and radial strength, and a method of manufacturing thereof

#88
20120160764
2012-06-28

POROUS VINYLIDENE FLUORIDE RESIN MEMBRANE AND PROCESS FOR PRODUCING SAME

#89
20120153544
2012-06-21

Melt processable poly (vinyl alcohol) blends and poly (vinyl alcohol) based membranes

#90
20120138535
2012-06-07

Perforated membranes

#91
20120135289
2012-05-31

POLYOLEFIN MICROPOROUS MEMBRANE AND SEPARATOR FOR LITHIUM ION BATTERY

#92
20120097603
2012-04-26

Process for fabricating membrane filters, and membrane filters

#93
20120012521
2012-01-19

VINYLIDENE FLUORIDE RESIN HOLLOW FIBER POROUS MEMBRANE AND PROCESS FOR PRODUCING SAME

#94
20120000852
2012-01-05

Polybenzimidazole based membrane for deacidification

#95
20110269900
2011-11-03

Polypropylene resin composition for use in formation of microporous membrane

#96
20110189472
2011-08-04

Uniaxially and Biaxially-Oriented Polytetrafluoroethylene Structures

#97
20110174728
2011-07-21

Polysulfone polymers and membranes for reverse osmosis, nanofiltration and ultrafiltration

#98
20100294710
2010-11-25

Method for producing a component, in particular a micromechanical and/or microfluidic and/or microelectronic component, and component

#99
20100282684
2010-11-11

LIPOPOLYSACCHARIDE DECONTAMINATION

#100
20100212504
2010-08-26

Gas separation membrane

#101
20100200493
2010-08-12

Process of forming multilayered structures

#102
20100171231
2010-07-08

PRODUCTION METHOD OF POROUS FILM

#103
20100157286
2010-06-24

Nanothin polymer films with selective pores and method of use thereof

#104
20100155325
2010-06-24

PARTICLE-TEMPLATED MEMBRANES, AND RELATED PROCESSES FOR THEIR PREPARATION

#105
20100098992
2010-04-22

Process for the formation of pores in a polymer matrix

#106
20100069596
2010-03-18

MICROPOROUS POLYOLEFIN MEMBRANE, ITS PRODUCTION METHOD, BATTERY SEPARATOR AND BATTERY

#107
20100051583
2010-03-04

Method for preparing porous material using nanostructures and porous material prepared by the same

#108
20100036009
2010-02-11

Process for producing microporous polymeric object, and microporous polymeric object and separation membrane

#109
20100032366
2010-02-11

Process of forming multilayered structures

#110
20090305127
2009-12-10

Microporous material and a method of making same

#111
20090277141
2009-11-12

Porous polytetrafluoroethylene membrane and method of producing the same, and filter medium

#112
20090208842
2009-08-20

SEPARATOR, METHOD FOR MANUFACTURING SEPARATOR, AND NONAQUEOUS ELECTROLYTE BATTERY

#113
20090203805
2009-08-13

Membrane preparation method comprising the extrusion of a thermoplastic polymer bearing alkaline groupings

#114
20090131544
2009-05-21

Extrusion of a thermoplastic polymer bearing acid ionic groupings

#115
20090127733
2009-05-21

METHOD FOR PRODUCING MICROPOROUS THERMOPLASTIC RESIN MEMBRANE

#116
20090098449
2009-04-16

Microporous polyolefin membrane, and method of producing the same

#117
20090088486
2009-04-02

ECONOMICALLY EFFICIENT PROCESS OF SYNTHESIZING POROUS POLYMERIC MATERIALS

#118
20090060969
2009-03-05

Method of forming a tissue structure by introducing cells into an implanted matrix

#119
20090023825
2009-01-22

Microporous polyethylene film and method of producing the same

#120
20080317953
2008-12-25

MESOPOROUS MATERIALS AND METHODS

#121
20080315447
2008-12-25

Method of making a microporous material

#122
20080311375
2008-12-18

Method of Fabricating a Polymeric Membrane Having at Least One Pore

#123
20080300332
2008-12-04

MICROPOROUS MATERIAL AND A METHOD OF MAKING SAME

#124
20080286549
2008-11-20

Nanothin polymer films with selective pores and method of use thereof

#125
20080230514
2008-09-25

Method of producing nanopatterned templates

#126
20080217262
2008-09-11

Nozzle device and nozzle for atomisation and/or filtration and methods for using the same

#127
20080156722
2008-07-03

Porous hollow-yarn membrane of vinylidene fluoride resin

#128
20080156191
2008-07-03

Hollow fiber membrane contact apparatus and process

#129
20080128390
2008-06-05

Fluidic MEMS device

#130
20080124663
2008-05-29

Microfluidic systems including three-dimensionally arrayed channel networks

#131
20080122140
2008-05-29

Microfluidic systems including three-dimensionally arrayed channel networks

#132
20080078718
2008-04-03

Porous Membrane for Water Treatment and Method of Manufacturing the Same

#133
20080067127
2008-03-20

Method of sewage treatment and sewage treatment apparatus

#134
20080067126
2008-03-20

METHOD FOR MEMBRANE FILTRATION PURIFICATION OF SUSPENDED WATER

#135
20080063794
2008-03-13

Mesoporous permeation layers for use on active electronic matrix devices

#136
20080020192
2008-01-24

Multilayer porous membrane and process

#137
20080004457
2008-01-03

Process for producing a polymer membrane, and polymer membrane

#138
20070241050
2007-10-18

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

#139
20070221568
2007-09-27

Microporous membrane made of polyolefins

#140
20070216057
2007-09-20

Poly(ethylene chlorotrifluoroethylene) membranes

#141
20070215540
2007-09-20

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

#142
20070209506
2007-09-13

Flexible template-directed microporous partially pyrolyzed polymeric membranes

#143
20070190641
2007-08-16

MESOSCALE POLYNUCLEOTIDE AMPLIFICATION DEVICE AND METHOD

#144
20070157812
2007-07-12

Gas transfer membrane

#145
20070148552
2007-06-28

Microporous membrane made from polyolefin

#146
20070090051
2007-04-26

Hollow fiber membrane and method of producing the same

#147
20070084794
2007-04-19

Porous membrane and method for manufacturing the same

#148
20070039872
2007-02-22

Vinylidene fluoride based resin porous hollow yarn and method for production thereof

#149
20070007197
2007-01-11

System and method for synthesizing a polymeric membrane

#150
20060292324
2006-12-28

Uniaxially and biaxially-oriented polytetrafluoroethylene structures

#151
20060263548
2006-11-23

Method of producing a sheet comprising through pores and the application thereof in the production of micronic and submicronic filters

#152
20060229421
2006-10-12

Powders or manufactured articles having a surface hydrophilicity

#153
20060188786
2006-08-24

Separator for secondary battery and porous film made of polyolefin blend and process for preparing the same

#154
20060180544
2006-08-17

Process of forming multilayered structures

#155
20060180543
2006-08-17

Process of forming multilayered structures

#156
20060178480
2006-08-10

Porous membrane of vinylidene fluoride resin and process for producing the same

#157
20060177643
2006-08-10

Microporous polyethylene film

#158
20060121269
2006-06-08

Method of making microporous material

#159
20060103055
2006-05-18

Polyolefin microporous membrane

#160
20060102556
2006-05-18

Porous molecularly imprinted polymer membranes

#161
20060099396
2006-05-11

Nanoporous coatings

#162
20060086657
2006-04-27

Process of forming multilayered structures

#163
20060040309
2006-02-23

Mesoscale polynucleotide amplification analysis

#164
20060032494
2006-02-16

Microstructured filter

#165
20060016748
2006-01-26

Microporous hydrophilic membrane

#166
20060009538
2006-01-12

Microporous polyethylene film and method of producing the same

#167
20060008636
2006-01-12

Microporous polyethylene film and method of producing the same

#168
20050258101
2005-11-24

Hollow fiber membrane and method of producing the same

#169
20050252857
2005-11-17

Smart membranes for nitrate removal, water purification, and selective ion transportation

#170
20050230856
2005-10-20

Hollow fiber membrane contact apparatus and process

#171
20050214692
2005-09-29

Method for producing microhole structures

#172
20050212160
2005-09-29

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

#173
20050202163
2005-09-15

Method of making a composite microporous membrane

#174
20050199544
2005-09-15

Process for the preparation of free standing membranes

#175
20050178862
2005-08-18

Nozzle device and nozzle for atomisation and/or filtration and methods for using the same

#176
20050164283
2005-07-28

Mesoporous permeation layers for use on active electronic matrix devices

#177
20050155926
2005-07-21

System and method for synthesizing a polymer membrane

#178
20050145107
2005-07-07

Process for producing polyolefin membrane with integrally asymmetrical structure

#179
20050142280
2005-06-30

System and method for synthesizing a polymer membrane

#180
20050098913
2005-05-12

Microporous polyolefin membrane, and method of producing the same

#181
20050098494
2005-05-12

Poly(ethylene chlorotrifluoroethylene) membranes

#182
20050072689
2005-04-07

Method for etching at least one ion track to a pore in a membrane and electrolyte cell for preparing the membrane

#183
20050058823
2005-03-17

Method of producing a microporous polyolefin membrane

#184
20050040100
2005-02-24

Process of forming multilayered structures

#185
20050019665
2005-01-27

Polyolefin microporous membrane and method of evaluating the same

#186
20050019302
2005-01-27

Polymer based permeable membrane for removal of ions

#187
20050003033
2005-01-06

Extruder with condenser