ClassID:

30886

B01D2323/20 - CPC Classification

Classification description:

Details relating to membrane preparation; Use of additives Plasticizers

Recent Application in this class:
#1
20260054229
2026-02-26

SEPARATION MEMBRANE AND MANUFACTURING METHOD THEREFOR

#2
20250161883
2025-05-22

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

#3
20240344006
2024-10-17

METHOD OF MANUFACTURE FOR EDIBLE, POROUS CROSS-LINKED HOLLOW FIBERS AND MEMBRANES BY PH INDUCED PHASE SEPARATION AND USES THEREOF

#4
20240342665
2024-10-17

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

#5
20240139689
2024-05-02

Microporous polyolefin membranes from bespoke solvents

#6
20240042394
2024-02-08

MICROPOROUS POLYOLEFIN MEMBRANES FROM BESPOKE SOLVENTS

#7
20230155247
2023-05-18

Method of making a microporous material

#8
20230032023
2023-02-02

Fe-Al-based metal porous membrane and preparation method thereof

#9
20200359952
2020-11-19

Device for whole blood cross flow filtration using a cannula needle

#10
20200289041
2020-09-17

Device for cross flow filtration

#11
20200206693
2020-07-02

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

#12
20200023321
2020-01-23

Separation film and production method therefor

#13
20190046931
2019-02-14

Separation membrane

#14
20180029276
2018-02-01

Method of making a microporous material

#15
20160106353
2016-04-21

Device for cross flow filtration

#16
20150028259
2015-01-29

Proton conducting membranes for hydrogen production and separation

#17
20140361457
2014-12-11

Process for producing microporous polyolefin film

#18
20130252067
2013-09-26

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

#19
20130025459
2013-01-31

Hollow ceramic fibers, precursors for manufacture thereof utilizing pore formers, methods of making the same, and methods of using the same

#20
20130025458
2013-01-31

Hollow ceramic fibers, precursors for manufacture thereof utilizing nanoparticles, methods of making the same, and methods of using the same

#21
20130000488
2013-01-03

Composite hollow ceramic fibers, precursors for, methods of making the same, and methods of using the same

#22
20120160764
2012-06-28

POROUS VINYLIDENE FLUORIDE RESIN MEMBRANE AND PROCESS FOR PRODUCING SAME

#23
20120135289
2012-05-31

POLYOLEFIN MICROPOROUS MEMBRANE AND SEPARATOR FOR LITHIUM ION BATTERY

#24
20120080147
2012-04-05

Thin film composite membranes and their method of preparation and use

#25
20110290716
2011-12-01

Vinylidene fluoride resin porous film and manufacturing method therefor

#26
20110084237
2011-04-14

Proton conducting membranes for hydrogen production and separation

#27
20100212504
2010-08-26

Gas separation membrane

#28
20100044901
2010-02-25

Porous vinylidene fluoride resin membrane for water treatment and process for producing the same

#29
20090305127
2009-12-10

Microporous material and a method of making same

#30
20090261034
2009-10-22

Vinylidene Fluoride Resin Hollow Fiber Porous Membrane and Method for Production Thereof

#31
20090208842
2009-08-20

SEPARATOR, METHOD FOR MANUFACTURING SEPARATOR, AND NONAQUEOUS ELECTROLYTE BATTERY

#32
20090208807
2009-08-20

SOLID ELECTROLYTE MEMBRANE, METHOD AND APPARATUS FOR PRODUCING THE SAME, MEMBRANE ELECTRODE ASSEMBLY AND FUEL CELL

#33
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

#34
20090186280
2009-07-23

Polyolefin microporous membrane

#35
20090131544
2009-05-21

Extrusion of a thermoplastic polymer bearing acid ionic groupings

#36
20090039014
2009-02-12

Porous Vinylidene Fluoride Resin Membrane for Water Treatment and Process for Producing the Same

#37
20080315447
2008-12-25

Method of making a microporous material

#38
20080300332
2008-12-04

MICROPOROUS MATERIAL AND A METHOD OF MAKING SAME

#39
20080156722
2008-07-03

Porous hollow-yarn membrane of vinylidene fluoride resin

#40
20080078718
2008-04-03

Porous Membrane for Water Treatment and Method of Manufacturing the Same

#41
20070241050
2007-10-18

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

#42
20070221568
2007-09-27

Microporous membrane made of polyolefins

#43
20070215540
2007-09-20

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

#44
20070148552
2007-06-28

Microporous membrane made from polyolefin

#45
20070044662
2007-03-01

Method for fabricating dense thin film cermet hydrogen separation membrane

#46
20070039872
2007-02-22

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

#47
20060263659
2006-11-23

Polymer electrolyte membrane and fuel cell using the polymer electrolyte membrane

#48
20060229421
2006-10-12

Powders or manufactured articles having a surface hydrophilicity

#49
20060177643
2006-08-10

Microporous polyethylene film

#50
20060148912
2006-07-06

Porous film of vinylidene fluoride resin and method for producing same

#51
20060121269
2006-06-08

Method of making microporous material

#52
20060103055
2006-05-18

Polyolefin microporous membrane

#53
20060046134
2006-03-02

Polymer electrolyte membrane and fuel cell employing the same

#54
20050263918
2005-12-01

Process for the manufacturing of filter elements as well as filter elements obtained in a such process