ClassID:

29928

B01D67/002 - CPC Classification

Classification description:

Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus; Organic membrane manufacture from melts

Recent Application in this class:
#1
20260102743
2026-04-16

BITUMINOUS WATERPROOFING MEMBRANE COMPRISING A RECYCLED BITUMINOUS BINDER, A REINFORCEMENT AND A REJUVENATOR

#2
20260054229
2026-02-26

SEPARATION MEMBRANE AND MANUFACTURING METHOD THEREFOR

#3
20250375743
2025-12-11

POROUS POLYETHYLENE FILTER MEMBRANE WITH ASYMMETRIC PORE STRUCTURE, AND RELATED FILTERS AND METHODS

#4
20250319445
2025-10-16

POLYETHYLENE MICROPOROUS MEMBRANE, METHOD FOR MANUFACTURING THE SAME, AND SEPARATOR INCLUDING MICROPOROUS MEMBRANE

#5
20250296051
2025-09-25

GAS SEPARATION MEMBRANE, AND METHOD OF MANUFACTURING GAS SEPARATION MEMBRANE

#6
20250205637
2025-06-26

GAS SEPARATION MEMBRANE

#7
20250105340
2025-03-27

MEMBRANE MADE OF A BLEND OF UHMW POLYOLEFINS

#8
20240382909
2024-11-21

POLYETHYLENE MICROPOROUS MEMBRANE, METHOD FOR MANUFACTURING THE SAME, AND SEPARATOR INCLUDING MICROPOROUS MEMBRANE

#9
20240299878
2024-09-12

CROSSLINKED POLYMER MEMBRANES AND METHODS OF THEIR PRODUCTION

#10
20240189778
2024-06-13

SEPARATION MEMBRANE AND MANUFACTURING METHOD THEREFOR

#11
20240181402
2024-06-06

POROUS COMPOSITE MEMBRANE FORMED BY BLENDING PERFLUOROALKOXY ALKANE (PFA) AND ORGANIC MATERIAL, AND MANUFACTURING METHOD THEREOF

#12
20240151472
2024-05-09

Systems and methods for periodic nodal surface based reactors, distributors, contractors and heat exchangers

#13
20240017241
2024-01-18

PPO BASED FILM WITH HIGH SURFACE AREA AND PROCEDURES FOR THE OBTAINMENT THEREOF

#14
20240017219
2024-01-18

POLYMER COMPOSITION AND METHOD FOR MANUFACTURING MEMBRANES THEREFROM

#15
20230390709
2023-12-07

POROUS POLYETHYLENE FILTER MEMBRANE WITH ASYMMETRIC PORE STRUCTURE, AND RELATED FILTERS AND METHODS

#16
20230381742
2023-11-30

POROUS MEMBRANE INCLUDING PERFLUOROALKOXY ALKANE (PFA)-BASED MELT-EXTRUDED FILM AND HAVING PORES CONTROLLED BY BIAXIAL STRETCHING, AND MANUFACTURING METHOD THEREFOR

#17
20230381720
2023-11-30

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

#18
20230191336
2023-06-22

Method for preparing block copolymer hollow fiber membrane by melt spinning-stretching and selective swelling

#19
20230008479
2023-01-12

SPIRAL WOUND-TYPE SEPARATION MEMBRANE MODULE AND METHOD OF MANUFACTURING SAME

#20
20220331746
2022-10-20

Light-driven filtration antibacterial composite membrane and preparation method and use thereof

#21
20220267587
2022-08-25

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

#22
20220040646
2022-02-10

Porous membranes for high pressure filtration

#23
20220003503
2022-01-06

Systems and methods for periodic nodal surface based reactors, distributors, contactors and heat exchangers

#24
20210379537
2021-12-09

Hollow-fiber membrane and hollow-fiber membrane module

#25
20210261893
2021-08-26

MASH FILTER MEMBRANE

#26
20210229045
2021-07-29

Separation of gases via carbonized vinylidene chloride copolymer gas separation membranes and processes therefor

#27
20210229044
2021-07-29

SEPARATION OF GASES VIA CARBONIZED VINYLIDENE CHLORIDE COPOLYMER GAS SEPARATION MEMBRANES AND PROCESSES THEREFORE

#28
20210170345
2021-06-10

Crosslinked polymer membranes and methods of their production

#29
20210113970
2021-04-22

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

#30
20210093768
2021-04-01

HIGHLY-PERMEABLE DENSE HOLLOW FIBER MEMBRANE FOR BLOOD OXYGENATION

#31
20210043903
2021-02-11

MICROPOROUS MEMBRANES, BATTERY SEPARATORS, AND METHODS FOR MAKING AND USING THE SAME

#32
20210013477
2021-01-14

Membrane made of a blend of UHMW polyolefins

#33
20200398230
2020-12-24

Functional fibrous membrane, method for manufacturing the same, filter comprising the same

#34
20200346169
2020-11-05

Porous film and method for producing same

#35
20200197880
2020-06-25

Separation membrane

#36
20200188863
2020-06-18

POLYOLEFIN MICROPOROUS MEMBRANE, SEPARATOR FOR BATTERIES, AND METHODS RESPECTIVELY OF PRODUCING THE MEMBRANE AND THE SEPARATOR

#37
20200139309
2020-05-07

POROUS POLYETHYLENE FILTER MEMBRANE WITH ASYMMETRIC PORE STRUCTURE, AND RELATED FILTERS AND METHODS

#38
20200122097
2020-04-23

METHOD OF MANUFACTURING POROUS POLYVINYLIDENE DIFLUORIDE MEMBRANE

#39
20200023321
2020-01-23

Separation film and production method therefor

#40
20190241712
2019-08-08

POROUS ARTICLE COMPRISING A POLYMER AND AN ADDITIVE, PROCESSES FOR THEIR PREPARATION AND USE THEREOF

#41
20190083939
2019-03-21

Separation of gases via carbonized vinylidene chloride copolymer gas separation membranes and processes therefor

#42
20190076793
2019-03-14

Separation of gases via carbonized vinylidene chloride copolymer gas separation membranes and processes therefor

#43
20190055327
2019-02-21

Method for manufacturing filter membrane for inhibiting microorganisms

#44
20190022634
2019-01-24

Ion exchange membrane and method for manufacturing same

#45
20190015533
2019-01-17

Removal of microorganisms from fluid samples using nanofiber filtration media

#46
20180318774
2018-11-08

Crosslinked polymer membranes and methods of their production

#47
20180304207
2018-10-25

MEMBRANE FILTER

#48
20180257043
2018-09-13

POLYVINYLIDENE DIFLUORIDE MEMBRANE, MANUFACTURING METHOD THEREOF, AND PURIFYING BRINE METHOD THEREOF

#49
20180141254
2018-05-24

Very thin tube made from TPU and its production process

#50
20180065093
2018-03-08

Separation membrane

#51
20170360971
2017-12-21

Removal of microorganisms from fluid samples using nanofiber filtration media

#52
20170360970
2017-12-21

Removal of microorganisms from fluid samples using nanofiber filtration media

#53
20170360969
2017-12-21

Removal of microorganisms from fluid samples using nanofiber filtration media

#54
20170189850
2017-07-06

Sour gas feed separations and helium recovery from natural gas using block co-polyimide membranes

#55
20170183242
2017-06-29

Water runoff treatment apparatus

#56
20170173511
2017-06-22

Method for retrovirus removal

#57
20170149038
2017-05-25

Polyolefin multilayer microporous membrane and battery separator

#58
20170143034
2017-05-25

HOLLOW/POROUS FIBERS AND APPLICATIONS THEREOF

#59
20170129789
2017-05-11

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

#60
20170092920
2017-03-30

Polyolefin microporous membrane and production method thereof

#61
20160375412
2016-12-29

Self-wetting porous membranes (II)

#62
20160263554
2016-09-15

Nanofibrous materials for heavy metal adsorption

#63
20160263529
2016-09-15

Improving the chemical stability of filtration membranes

#64
20160243506
2016-08-25

Process for manufacturing fluoropolymer membranes

#65
20160151745
2016-06-02

Membrane modules utilizing innovative geometries of net-type feed spacers for improved performance in separations and spacer-fabrication methods therein

#66
20160151743
2016-06-02

POTTED FLAT SHEET MEMBRANE FILTRATION MODULE

#67
20160136588
2016-05-19

ZWITTERIONIC SULFONE POLYMER BLEND AND HOLLOW-FIBER MEMBRANE

#68
20160136586
2016-05-19

MEMBRANE AND METHOD OF MANUFACTURING THE SAME

#69
20160096149
2016-04-07

NANOCOMPOSITE MIXED-MATRIX MEMBRANE

#70
20160043372
2016-02-11

Membrane made of a blend of UHMW polyolefins

#71
20150375176
2015-12-31

MEMBRANE FILTER

#72
20150343394
2015-12-03

HOLLOW FIBER MEMBRANE MODULE, METHOD FOR PRODUCING HOLLOW FIBER MEMBRANE, AND METHOD FOR PRODUCING HOLLOW FIBER MEMBRANE MODULE

#73
20150240045
2015-08-27

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

#74
20150217219
2015-08-06

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

#75
20150165386
2015-06-18

Black porous polytetrafluoroethylene membrane, method for producing same, gas-permeable membrane and ventilation member using same

#76
20150144551
2015-05-28

POLYMER RESIN COMPOSITION FOR PREPARING HOLLOW FIBER MEMBRANE, PREPARATION METHOD OF HOLLOW FIBER MEMBRANE, AND HOLLOW FIBER MEMBRANE

#77
20150096934
2015-04-09

Preparation method of homogeneous-reinforced PVDF hollow fiber membrane

#78
20150090126
2015-04-02

Vapour-barrier membrane based on a PA666/EVOH blend

#79
20150079392
2015-03-19

FLUORORESIN MICROPOROUS MEMBRANE, METHOD FOR PRODUCING THE SAME, AND FILTER ELEMENT USING THE FLUORORESIN MICROPOROUS MEMBRANE

#80
20150037653
2015-02-05

Multilayered microporous polyolefin film

#81
20150020685
2015-01-22

Hollow fiber membranes and methods for forming same

#82
20140246356
2014-09-04

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

#83
20140083929
2014-03-27

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

#84
20140058007
2014-02-27

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

#85
20130252067
2013-09-26

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

#86
20130005845
2013-01-03

Microporous film

#87
20120276367
2012-11-01

CAST FILMS, MICROPOROUS MEMBRANES, AND METHOD OF PREPARATION THEREOF

#88
20120201988
2012-08-09

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

#89
20120178835
2012-07-12

USE OF BRANCHED ADDITION COPLYMERS IN FILMS AND MEMBRANES

#90
20120160764
2012-06-28

POROUS VINYLIDENE FLUORIDE RESIN MEMBRANE AND PROCESS FOR PRODUCING SAME

#91
20120153544
2012-06-21

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

#92
20120135289
2012-05-31

POLYOLEFIN MICROPOROUS MEMBRANE AND SEPARATOR FOR LITHIUM ION BATTERY

#93
20120103895
2012-05-03

Vinylidene fluoride resin porous membrane, manufacturing method therefor, and method for manufacturing filtrate water

#94
20120091072
2012-04-19

Removal of microorganisms from fluid samples using nanofiber filtration media

#95
20120061332
2012-03-15

Method for retrovirus removal

#96
20120025414
2012-02-02

Formation and encapsulation of molecular bilayer and monolayer membranes

#97
20120012521
2012-01-19

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

#98
20110297612
2011-12-08

POROUS MEMBRANES WITH MULTIPLE ZONES HAVING DIFFERENT PORE SIZES

#99
20110290716
2011-12-01

Vinylidene fluoride resin porous film and manufacturing method therefor

#100
20110278159
2011-11-17

Cation exchange membrane, production process thereof and electrolytic cell using the same

#101
20110269900
2011-11-03

Polypropylene resin composition for use in formation of microporous membrane

#102
20110268959
2011-11-03

POROUS MEMBRANE

#103
20110253040
2011-10-20

Apparatus For Forming Composite Membrane With Porous Coating Layer

#104
20110244013
2011-10-06

Microporous material from ethylene-chlorotrifluoroethylene copolymer and method for making same

#105
20110240553
2011-10-06

Crystalline polymer microporous membrane and filtration filter

#106
20110240552
2011-10-06

CRYSTALLINE POLYMER MICROPOROUS MEMBRANE, METHOD FOR PRODUCING THE SAME, AND FILTRATION FILTER USING THE SAME

#107
20110240551
2011-10-06

CRYSTALLINE POLYMER MICROPOROUS MEMBRANE, METHOD FOR PRODUCING THE SAME, AND FILTRATION FILTER USING THE SAME

#108
20110223407
2011-09-15

Method of producing microporous polymer membrane and microporous polymer membrane produced by the method

#109
20110215045
2011-09-08

HIGH FIDELITY THROUGH HOLE FILM, AND ASSOCIATED METHOD

#110
20110198764
2011-08-18

AERATION SYSTEM WITH ANTIMICROBIAL PROPERTIES

#111
20110178193
2011-07-21

PROCESS FOR PRODUCING ETHYLENE/TETRAFLUOROETHYLENE COPOLYMER POROUS MATERIAL, AND ETHYLENE/TETRAFLUOROETHYLENE COPOLYMER POROUS MATERIAL

#112
20110147300
2011-06-23

Composition for preparation of hollow fiber porous membrane and preparation method using the same

#113
20110076197
2011-03-31

Nano-fibered membrane for western blot and manufacturing method of the same

#114
20110049746
2011-03-03

Method of manufacturing reinforced electrolyte membrane and membrane electrode assembly

#115
20110024355
2011-02-03

ANTIMICROBIAL MEMBRANES

#116
20110014459
2011-01-20

Expandable polymer membrane and tubes, and a method of manufacturing thereof

#117
20100313753
2010-12-16

Polyethylene membrane and method of its production

#118
20100272941
2010-10-28

DURABLE WATER- AND OIL- RESISTANT, BREATHABLE MICROPOROUS MEMBRANE

#119
20100212504
2010-08-26

Gas separation membrane

#120
20100181697
2010-07-22

Process for producing a proton-conducting, polyazole-containing membrane

#121
20100069596
2010-03-18

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

#122
20090293893
2009-12-03

Hollow/porous fibers and applications thereof

#123
20090280262
2009-11-12

METHOD FOR FORMING COMPOSITE MEMBRANE WITH POROUS COATING LAYER AND APPARATUS THEREOF

#124
20090269672
2009-10-29

Production method of microporous polyethylene membrane and battery separator

#125
20090226731
2009-09-10

Method for producing a reflective membrane and the membrane produced therewith

#126
20090203805
2009-08-13

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

#127
20090174105
2009-07-09

METHOD OF MANUFACTURING REINFORCED ELECTROLYTE MEMBRANE AND MEMBRANE ELECTRODE ASSEMBLY

#128
20090159840
2009-06-25

Hydrogen-containing carbon film

#129
20090131544
2009-05-21

Extrusion of a thermoplastic polymer bearing acid ionic groupings

#130
20090127733
2009-05-21

METHOD FOR PRODUCING MICROPOROUS THERMOPLASTIC RESIN MEMBRANE

#131
20090117455
2009-05-07

Multi-layer, microporous polyethylene membrane, its production method, and battery separator

#132
20080227880
2008-09-18

Porous body and filter

#133
20070221567
2007-09-27

Membrane made of a blend of UHMW polyolefins

#134
20070185264
2007-08-09

Polymer composite, film thereof and separation membrane made therefrom

#135
20070039872
2007-02-22

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

#136
20070012617
2007-01-18

Method for producing micro-porous film of thermoplastic resin

#137
20060148912
2006-07-06

Porous film of vinylidene fluoride resin and method for producing same

#138
20060138044
2006-06-29

Membrane and use thereof

#139
20050251198
2005-11-10

Intravascular filter membrane and method of forming

#140
20050087487
2005-04-28

Porous polyolefin membrane