ClassID:

29925

B01D67/0013 - page 2 - CPC Classification

Classification description:

Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus; Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching Casting processes

Recent Application in this class:
#301
20080166619
2008-07-10

Electrolytic membrane

#302
20080061001
2008-03-13

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

#303
20080004205
2008-01-03

Ultrafiltration membranes and methods of making

#304
20080000828
2008-01-03

High-flux dialysis membrane with an improved separation behaviour

#305
20070199891
2007-08-30

Separation membrane with selective permeability and process for producing the same

#306
20070182791
2007-08-09

Polyelectrolyte composition for humidity senser, polyelectrolyte ink and preparation method of poly electrolyte membrane for sensor by inkjet printing

#307
20070128425
2007-06-07

Reinforced ion-conductive membranes

#308
20070066691
2007-03-22

Composite ionomeric membrane

#309
20070036959
2007-02-15

Porous films with chemical resistance

#310
20070026219
2007-02-01

Cellulose-based microporous membrane

#311
20060249018
2006-11-09

Nucleophilic modifier functionalized and/or crosslinked solvent-resistant polymide and copolymer membranes

#312
20060234582
2006-10-19

Permselective membrane and process for manufacturing thereof

#313
20060196830
2006-09-07

PRE-METERED, UNSUPPORTED MULTILAYER MICROPOROUS MEMBRANE

#314
20060196825
2006-09-07

Pvc hollow filtration membrane and the preparation method thereof

#315
20060180544
2006-08-17

Process of forming multilayered structures

#316
20060180543
2006-08-17

Process of forming multilayered structures

#317
20060138042
2006-06-29

Heat-resistant film and composite ion-exchange membrane

#318
20060121267
2006-06-08

Process for producing porous film and porous film

#319
20060086657
2006-04-27

Process of forming multilayered structures

#320
20060032812
2006-02-16

Pre-metered, unsupported multilayer microporous membrane

#321
20050252377
2005-11-17

Air dehydration membrane

#322
20050247621
2005-11-10

Method of manufacturing membranes and the resulting membranes

#323
20050238937
2005-10-27

Highly conductive ordered ion exchange membranes

#324
20050184006
2005-08-25

Method for producing a non-porous membrane

#325
20050181147
2005-08-18

Production method of cellulose film, cellulose film, protective film for polarizing plate, optical functional film, polarizing plate, and liquid crystal display

#326
20050040100
2005-02-24

Process of forming multilayered structures

#327
20050034602
2005-02-17

Air dehydration membrane

#328
20050011834
2005-01-20

Highly asymmetric, hydrophilic, microfiltration membranes having large pore diameters

#329
19293356
2026-05-05

Polymers for use as anion exchange membranes

#330
18985644
2025-04-29

Glass supported separation membrane

#331
18910689
2025-01-28

Substrate supported gas separation membrane

#332
18799030
2024-11-26

Gas separation membrane

#333
18657831
2024-10-08

Multifunctional diselenide-based polyimide membrane for gas separation and purification

#334
18581246
2024-09-10

Synthesis of non-ionic hydrogels for non-ionic pollutant removal

#335
16387418
2020-03-03

Method of making an asymmetric polyvinylidene difluoride membrane

#336
15472426
2018-08-21

Super high permeance and high selectivity rubbery polymeric membranes for separations

#337
14292640
2015-10-20

Membrane comprising self-assembled block copolymer and process for producing the same by spin coating (Ia)