ClassID:

30014

B01D71/40 - page 2 - CPC Classification

Classification description:

Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor; Organic material Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters

Recent Application in this class:
#301
20070248942
2007-10-25

Method for removing viruses and leukocytes from blood using a surface comprising hydroxyl and polyethylene glycol groups

#302
20070219322
2007-09-20

Graft copolymers, methods for grafting hydrophilic chains onto hydrophobic polymers, and articles thereof

#303
20070207493
2007-09-06

Positively charged membrane

#304
20070185264
2007-08-09

Polymer composite, film thereof and separation membrane made therefrom

#305
20070173549
2007-07-26

Phosphorus-acid-group-containing (meth) acrylamide, its polymer and use thereof, and their production methods

#306
20070166621
2007-07-19

Polymer membrane, method of preparing the same, and fuel cell using the same

#307
20070119774
2007-05-31

Process for removing microbubbles from a liquid

#308
20070093562
2007-04-26

Polymeric Composition, Material Produced and Their Applications

#309
20070080107
2007-04-12

Nanoporous membrane and method of fabricating the same

#310
20070051680
2007-03-08

Hydrophilic cross-linked polymeric membranes and sorbents

#311
20070021569
2007-01-25

Sulfonated block copolymers, method for making same, and various uses for such block copolymers

#312
20060269815
2006-11-30

Blend of ionic (co)polymer resins and matrix (co)polymers

#313
20060264355
2006-11-23

Separating material

#314
20060263659
2006-11-23

Polymer electrolyte membrane and fuel cell using the polymer electrolyte membrane

#315
20060249445
2006-11-09

Positively charged membrane

#316
20060229421
2006-10-12

Powders or manufactured articles having a surface hydrophilicity

#317
20060210785
2006-09-21

Foamed product in a sheet form and method for production thereof

#318
20060166067
2006-07-27

Polymer electrolyte membrane, method for the production thereof, and application thereof in fuel cells

#319
20060121217
2006-06-08

Composite material comprising layered hydrophilic coatings

#320
20060119015
2006-06-08

Method for producing hollow fibres

#321
20060099396
2006-05-11

Nanoporous coatings

#322
20060096922
2006-05-11

Lyotropic liquid crystal nanofiltration membranes

#323
20060068668
2006-03-30

Microfiber supported nanofiber membrane

#324
20060062982
2006-03-23

Carbon-polymer electrochemical systems and methods of fabricating them using layer-by-layer technology

#325
20060058479
2006-03-16

Polymeric composition, material produced thereof and their applications

#326
20060046134
2006-03-02

Polymer electrolyte membrane and fuel cell employing the same

#327
20060029853
2006-02-09

Polymer electrolyte membrane and polymer electrolyte fuel cell

#328
20060000778
2006-01-05

Pervaporation composite membranes

#329
20050239131
2005-10-27

Interactive system for presenting and eliminating substances

#330
20050211624
2005-09-29

Hydrophilic cross-linked polymeric membranes and sorbents

#331
20050211621
2005-09-29

Positively charged membrane

#332
20050175879
2005-08-11

Grafted polymer electrolyte membrane, method for the production thereof, and application thereof in fuel cells

#333
20050173341
2005-08-11

Blended polymer media for treating aqueous fluids

#334
20050139537
2005-06-30

Negatively charged membrane

#335
20050126987
2005-06-16

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

#336
20050121386
2005-06-09

Filter for selectively eliminating leukocytes

#337
20050118479
2005-06-02

Electrolyte film and solid polymer fuel cell using the same

#338
20050032982
2005-02-10

Modified membranes

#339
20050029186
2005-02-10

Modified membranes

#340
20050029185
2005-02-10

Modified membranes

#341
20050014127
2005-01-20

Method for selectively removing virus and leukocytes eliminating material and eliminating apparatus

#342
20050011826
2005-01-20

Asymmetric gel-filled microporous membranes

#343
20050000889
2005-01-06

Membranes and methods of manufacture thereof

#344
18114578
2023-11-21

Energy self-sufficient high-efficiency photo-thermal evaporative nano-particle porous membrane, preparation method and application thereof

#345
17669966
2023-05-30

Integrated membrane and steam reformer for hydrogen production

#346
14292751
2015-10-27

Self-assembling polymers—VI

#347
14292611
2015-10-20

Self-assembling polymers—II