ClassID:

30028

B01D71/68 - page 4 - CPC Classification

Classification description:

Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor; Organic material; Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only Polysulfones; Polyethersulfones

Recent Application in this class:
#901
20070163951
2007-07-19

Chlorine resistant desalination membranes based on directly sulfonated poly(arylene ether sulfone) copolymers

#902
20070163950
2007-07-19

High-flux dialysis membrane with improved separation behaviour

#903
20070163949
2007-07-19

Dialysis membrane having improved ability for removal of middle molecules

#904
20070114167
2007-05-24

Bundle of selectively permeable polysulfone-based hollow fiber membranes and process for manufacturing same

#905
20070102350
2007-05-10

Method for producing polymeric membranes with high-recovery rate

#906
20070084794
2007-04-19

Porous membrane and method for manufacturing the same

#907
20070084788
2007-04-19

Ultrafiltration membranes and methods of making and use of ultrafiltration membranes

#908
20070080108
2007-04-12

Hollow fiber membrane for blood purification and blood purification apparatus using the same

#909
20070029256
2007-02-08

Composite porous membrane and process for producing the same

#910
20060283323
2006-12-21

Polyoxometalate material for gaseous stream purification at high temperature

#911
20060276602
2006-12-07

Sulfonated aryl sulfonate matrices and method of production

#912
20060275637
2006-12-07

ELECTROLYTE MEMBRANE AND PREPARING METHOD THEREOF

#913
20060251969
2006-11-09

Block copolymers with acidic groups

#914
20060249444
2006-11-09

Triblock copolymers with acidic groups

#915
20060234582
2006-10-19

Permselective membrane and process for manufacturing thereof

#916
20060228483
2006-10-12

Method of producing membranes for filtration modules which are intended, for example, for water treatment

#917
20060205309
2006-09-14

Polysulfone-based hollow-fiber membrane with selective permeability

#918
20060196830
2006-09-07

PRE-METERED, UNSUPPORTED MULTILAYER MICROPOROUS MEMBRANE

#919
20060191844
2006-08-31

Highly water-permeable blood purifier of hollow-fiber membrane type

#920
20060180544
2006-08-17

Process of forming multilayered structures

#921
20060180543
2006-08-17

Process of forming multilayered structures

#922
20060172084
2006-08-03

Composites and composite membranes

#923
20060166048
2006-07-27

Polyarylene ether compound containing sulfonic acid group, composition containing same, and method for manufacturing those

#924
20060138044
2006-06-29

Membrane and use thereof

#925
20060124530
2006-06-15

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

#926
20060096913
2006-05-11

Organic-inorganic membranes

#927
20060086657
2006-04-27

Process of forming multilayered structures

#928
20060076288
2006-04-13

Hydrophilic polyethersulfone membrane and method for preparing same

#929
20060043344
2006-03-02

Sulfonic group-containing polyarylene block copolymer, process for production thereof, solid polymer electrolyte and proton conductive membrane

#930
20060032812
2006-02-16

Pre-metered, unsupported multilayer microporous membrane

#931
20050288482
2005-12-29

Process for the production of sulfoalkyl-containing polymers

#932
20050287515
2005-12-29

Removal of bacterial DNA from therapeutic fluid formulations

#933
20050287410
2005-12-29

Polymer electrolyte membrane and fuel cell using the same

#934
20050273031
2005-12-08

Modified substrate and process for producing modified substrate

#935
20050260381
2005-11-24

Laminates of asymmetric membranes

#936
20050252377
2005-11-17

Air dehydration membrane

#937
20050242021
2005-11-03

Hollow fibres

#938
20050165172
2005-07-28

Oligomers and polymers containing sulfinate groups, and method for producing the same

#939
20050139545
2005-06-30

Photo-processing and cleaning of pes and psf membranes

#940
20050126987
2005-06-16

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

#941
20050124769
2005-06-09

Functionalized main chain polymers

#942
20050121384
2005-06-09

Specialized hollow fiber membranes for in-vivo plasmapheresis and ultrafiltration

#943
20050106469
2005-05-19

Proton conductive composition and proton conductive membrane

#944
20050103716
2005-05-19

Method of making and using a hollow fiber microfiltration membrane

#945
20050103193
2005-05-19

Oxygen and nitrogen enriched atmospheres in aircraft

#946
20050092676
2005-05-05

Porous silicon composite structure as large filtration array

#947
20050074654
2005-04-07

Method for producing a membrane from a crosslinked polymer blend, and corresponding fuel cell

#948
20050069745
2005-03-31

Polymer electrolyte membranes for use in fuel cells

#949
20050040100
2005-02-24

Process of forming multilayered structures

#950
20050034602
2005-02-17

Air dehydration membrane

#951
20050032982
2005-02-10

Modified membranes

#952
20050031925
2005-02-10

Composite solid polymer electrolyte membranes

#953
20050029186
2005-02-10

Modified membranes

#954
20050029185
2005-02-10

Modified membranes

#955
20050011834
2005-01-20

Highly asymmetric, hydrophilic, microfiltration membranes having large pore diameters

#956
20050006302
2005-01-13

Process for the preparation of porous membrane

#957
19243757
2025-10-07

Porous self-cleaning photocatalytic membrane

#958
18419569
2024-12-03

Seawater desalination reverse osmosis membrane with both water flux and boron removal rate and its preparation method thereof

#959
14519743
2017-03-21

Surface functionalization of metal organic frameworks for mixed matrix membranes

#960
14108321
2015-04-07

Aromatic poly (ether sulfone imide) membranes for gas separations

#961
13206038
2015-08-04

Non-reactive process for fixing nanotubes in a membrane in through-passage orientation