ClassID:

30913

B01D2325/022 - page 2 - CPC Classification

Classification description:

Details relating to properties of membranes; Details relating to pores or porosity of the membranes Asymmetric membranes

Recent Application in this class:
#301
20090126566
2009-05-21

Polymer Functionalized Molecular Sieve/Polymer Mixed Matrix Membranes

#302
20090117433
2009-05-07

Gas diffusion electrode material and production method thereof

#303
20090110900
2009-04-30

Polymeric porous hollow fiber membrane

#304
20090087750
2009-04-02

Microporous membrane and manufacturing method

#305
20090078644
2009-03-26

Membrane bags with seamless membrane substance, uses thereof, filtration units therewith and manufacturing processes

#306
20090071896
2009-03-19

Membrane bags with seamless membrane substance, uses thereof and filtration units therewith

#307
20080300336
2008-12-04

UV CROSS-LINKED POLYMER FUNCTIONALIZED MOLECULAR SIEVE/POLYMER MIXED MATRIX MEMBRANES

#308
20080296527
2008-12-04

UV CROSS-LINKED POLYMER FUNCTIONALIZED MOLECULAR SIEVE/POLYMER MIXED MATRIX MEMBRANES

#309
20080261017
2008-10-23

Hollow Fiber Membrane and Preparing Method Thereof

#310
20080241503
2008-10-02

Process for forming microporous membranes

#311
20080214687
2008-09-04

Cross Linking Treatment of Polymer Membranes

#312
20080203011
2008-08-28

Support Having an Altered Porosity and Membrane for the Tangential Flow Filtration

#313
20080197072
2008-08-21

Microfiltration Membrane With Improved Filtration Properties

#314
20080156191
2008-07-03

Hollow fiber membrane contact apparatus and process

#315
20080149571
2008-06-26

Porous sintered composite materials

#316
20080143014
2008-06-19

Asymmetric Gas Separation Membranes with Superior Capabilities for Gas Separation

#317
20080134883
2008-06-12

Highly microporous thermoplastic/bismaleimide semi-interpenetrating polymer network

#318
20080114087
2008-05-15

Method for fabrication of elastomeric asymmetric membranes from hydrophobic polymers

#319
20080113242
2008-05-15

Microporous PVDF films

#320
20080105613
2008-05-08

CERAMIC FILTER

#321
20080083697
2008-04-10

POROUS SILICON COMPOSITE STRUCTURE AS LARGE FILTRATION ARRAY

#322
20080061001
2008-03-13

Method of stably producing microporous membrane and use thereof in method of separating and purifying nucleic acid

#323
20080060651
2008-03-13

Process and device for separating carbon dioxide from a breathing gas mixture by means of a fixed site carrier membrane

#324
20080044643
2008-02-21

Polysulfone type selectively permeable hollow fiber membrane module and process for manufacturing the same

#325
20080038567
2008-02-14

Method of making sulfur-resistant composite metal membranes

#326
20080020192
2008-01-24

Multilayer porous membrane and process

#327
20080004205
2008-01-03

Ultrafiltration membranes and methods of making

#328
20080000830
2008-01-03

Highly Water Permeable Hollow Fiber Membrane Type Blood Purifier and Process for Manufacturing the Same

#329
20070216057
2007-09-20

Poly(ethylene chlorotrifluoroethylene) membranes

#330
20070180994
2007-08-09

SOLVENT RESISTANT ASYMMETRIC INTEGRALLY SKINNED MEMBRANES

#331
20070163950
2007-07-19

High-flux dialysis membrane with improved separation behaviour

#332
20070157812
2007-07-12

Gas transfer membrane

#333
20070102350
2007-05-10

Method for producing polymeric membranes with high-recovery rate

#334
20070084794
2007-04-19

Porous membrane and method for manufacturing the same

#335
20070082128
2007-04-12

Method for coating a substrate

#336
20070056256
2007-03-15

Electrostatic air filter

#337
20070039299
2007-02-22

Porous sintered composite materials

#338
20070026219
2007-02-01

Cellulose-based microporous membrane

#339
20070017861
2007-01-25

Carbon nanocomposite membranes and methods for their fabrication

#340
20060276602
2006-12-07

Sulfonated aryl sulfonate matrices and method of production

#341
20060234582
2006-10-19

Permselective membrane and process for manufacturing thereof

#342
20060226067
2006-10-12

Asymmetric forward osmosis membranes

#343
20060205309
2006-09-14

Polysulfone-based hollow-fiber membrane with selective permeability

#344
20060196830
2006-09-07

PRE-METERED, UNSUPPORTED MULTILAYER MICROPOROUS MEMBRANE

#345
20060188737
2006-08-24

Process for preparing palladium alloy composite membranes for use in hydrogen separation, palladium alloy composite membranes and products incorporating or made from the membranes

#346
20060180544
2006-08-17

Process of forming multilayered structures

#347
20060180543
2006-08-17

Process of forming multilayered structures

#348
20060175256
2006-08-10

Ceramic membrane water filtration

#349
20060156920
2006-07-20

Separation membrane made from blends of polyimide with polyamide or polyimide-amide polymers

#350
20060141238
2006-06-29

Porous membrane of poly(metaphenylene isophthalamide) and process for producing the same

#351
20060124530
2006-06-15

Anticoagulant and thrombo-resistant hollow fiber membranes for in-vivo plasmapheresis and ultrafiltration

#352
20060117955
2006-06-08

Solvent resistant asymmetric integrally skinned membranes

#353
20060086657
2006-04-27

Process of forming multilayered structures

#354
20060032812
2006-02-16

Pre-metered, unsupported multilayer microporous membrane

#355
20060016748
2006-01-26

Microporous hydrophilic membrane

#356
20050247621
2005-11-10

Method of manufacturing membranes and the resulting membranes

#357
20050242021
2005-11-03

Hollow fibres

#358
20050230856
2005-10-20

Hollow fiber membrane contact apparatus and process

#359
20050172811
2005-08-11

Hydrogen-selective silica-based membrane

#360
20050145107
2005-07-07

Process for producing polyolefin membrane with integrally asymmetrical structure

#361
20050126987
2005-06-16

Use of hydrophobically modified copolymers based on N-vinyl monomers for the production of membranes

#362
20050121384
2005-06-09

Specialized hollow fiber membranes for in-vivo plasmapheresis and ultrafiltration

#363
20050098494
2005-05-12

Poly(ethylene chlorotrifluoroethylene) membranes

#364
20050092676
2005-05-05

Porous silicon composite structure as large filtration array

#365
20050082717
2005-04-21

Methods of making stretched filtering membranes and modules

#366
20050069700
2005-03-31

Manufacture of polyimide-hollow fibres

#367
20050058821
2005-03-17

Microporous PVDF films

#368
20050051479
2005-03-10

Hollow fiber membrane and braided tubular support therefor

#369
20050040100
2005-02-24

Process of forming multilayered structures

#370
20050011834
2005-01-20

Highly asymmetric, hydrophilic, microfiltration membranes having large pore diameters

#371
20050011826
2005-01-20

Asymmetric gel-filled microporous membranes

#372
20050000899
2005-01-06

Dithiolene functionalized polymer membrane for olefin/paraffin separation

#373
17836575
2022-11-08

Mesoporous poly (aryl ether ketone) hollow fiber membranes and use thereof in mass transfer processes

#374
16387418
2020-03-03

Method of making an asymmetric polyvinylidene difluoride membrane