ClassID:

30030

B01D71/72 - CPC Classification

Classification description:

Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor; Organic material Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of the groups - and -

Recent Application in this class:
#1
20250345757
2025-11-13

CO2 PURIFICATION WITH ELECTROACTIVE POLYMERS

#2
20250177927
2025-06-05

SUPPORTED MEMBRANES BY THERMAL AND UV INITITATED MASS POLYMERIZATION

#3
20240342699
2024-10-17

ANIONIC MEMBRANES INCORPORATING FUNCTIONAL ADDITIVES

#4
20240337026
2024-10-10

ULTRA-THIN FILM OF THERMOSETTING RESIN

#5
20240218114
2024-07-04

ANION EXCHANGE RESIN AND ELECTROLYTE MEMBRANE

#6
20240216875
2024-07-04

Supported membranes by thermal and UV initiated mass polymerization

#7
20240052080
2024-02-15

MATERIALS FOR REDUCING ACIDS FROM LIQUID PHASES

#8
20240002584
2024-01-04

POLYMER AND METHOD FOR PRODUCING SAME, SEPARATION MEMBRANE, ELECTROLYTE MEMBRANE, FUEL CELL, WATER ELECTROLYSIS, AND ELECTROLYSIS TECHNIQUE

#9
20230415104
2023-12-28

CO2 PURIFICATION WITH ELECTROACTIVE POLYMERS

#10
20220118402
2022-04-21

CARBON DIOXIDE ENVIRONMENTAL CONTROL SYSTEM

#11
20220056181
2022-02-24

Materials for reducing acids from liquid phases

#12
20220040647
2022-02-10

POROUS MEMBRANES FOR HIGH PRESSURE FILTRATION

#13
20220040646
2022-02-10

Porous membranes for high pressure filtration

#14
20220008869
2022-01-13

Electrically conductive membrane assembly and related systems and methods

#15
20210268450
2021-09-02

COMPOSITION USEFUL FOR PRODUCTION OF ACIDIC GAS SEPARATION MEMBRANE

#16
20200406248
2020-12-31

Anionic membranes incorporating functional additives

#17
20200398222
2020-12-24

CONTROL OF COMPOSITE COVALENT ORGANIC FRAMEWORK BY VARYING FUNCTIONAL GROUPS INSIDE THE PORE

#18
20200163314
2020-05-28

System and method for non-invasively determining egg properties

#19
20200094198
2020-03-26

Composite membranes having intrinsic microporosity

#20
20200070107
2020-03-05

Fluorinated polytriazole membrane materials for gas separation technology

#21
20190321787
2019-10-24

Composite Membrane and Method of Separating Gas Using the Same

#22
20190151796
2019-05-23

Carbon dioxide environmental control system

#23
20190148085
2019-05-16

Apparatus for generating electrical energy based on hydrophilic fiber membrane and method of fabricating same

#24
20190022594
2019-01-24

Ultrathin, conductive and fouling-resistant zwitterionic polymer films

#25
20180044205
2018-02-15

DEVICE FOR REMOVING MICROPARTICLES CONTAINED IN WATER AND ULTRAPURE-WATER PROUCTION AND SUPPLY SYSTEM

#26
20170072369
2017-03-16

Carbon nanotube immobilized super-absorbing membranes

#27
20170028363
2017-02-02

Hydrophilic porous polytetrafluoroethylene membrane (I)

#28
20160367948
2016-12-22

Crosslinked polymer, method for producing the same, molecular sieve composition and material separation membranes

#29
20160263533
2016-09-15

Treated mixed matrix polymeric membranes

#30
20150344655
2015-12-03

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

#31
20150344654
2015-12-03

Self-assembled structure and membrane comprising block copolymer and process for producing the same by spin coating (IIIa)

#32
20150343397
2015-12-03

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

#33
20150343396
2015-12-03

Membrane comprising self-assembled block copolymer and process for producing the same by hybrid casting (Ib)

#34
20150343395
2015-12-03

Membrane comprising self-assembled block copolymer and process for producing the same by hybrid casting (IIb)

#35
20140345456
2014-11-27

Gas separation composite membrane and method of producing the same, and gas separating module, gas separation apparatus and gas separation method using the same

#36
20140299538
2014-10-09

Antifouling and chlorine-resistant ultrathin coatings on reverse osmosis membranes

#37
20140251897
2014-09-11

Composite membranes having intrinsic microporosity

#38
20140230654
2014-08-21

Gas separation membrane

#39
20140217013
2014-08-07

Polyketone porous film

#40
20130264209
2013-10-10

Ion exchanger, method of manufacturing the same, and ion exchange filter device and electro-deionization device including the same

#41
20120301813
2012-11-29

Solid polymer electrolyte material, liquid composition, solid polymer fuel cell and fluoropolymer

#42
20120142865
2012-06-07

Nanostructured polymer membranes for selective alcohol transport

#43
20120119410
2012-05-17

Highly basic ionomers and membranes and anion/hydroxide exchange fuel cells comprising the ionomers and membranes

#44
20120067734
2012-03-22

Phenol crosslink for sensor membrane

#45
20110305971
2011-12-15

Solid polymer electrolyte material, liquid composition, solid polymer fuel cell and fluoropolymer

#46
20110111412
2011-05-12

Uses of parylene membrane filters

#47
20100304273
2010-12-02

Proton conducting membranes for fuel cells having a proton gradient and methods for preparing said membranes

#48
20100224560
2010-09-09

Ethanol water solution concentrating method

#49
20100222489
2010-09-02

COPOLYMER COMPOSITION, MEMBRANE ARTICLE, AND METHODS THEREOF

#50
20090004526
2009-01-01

Proton exchange membrane for fuel cell

#51
20090001009
2009-01-01

Composite membranes and methods for their preparation

#52
20080014490
2008-01-17

Solid polymer electrolyte material, liquid composition, solid polymer fuel cell and fluoropolymer

#53
20080004360
2008-01-03

Polyarylene Polymer And Use Thereof

#54
20070265426
2007-11-15

Synthesis of polyphosphazenes with sulfonimide side groups

#55
20070209505
2007-09-13

High Flux Mixed Matrix Membranes for Separations

#56
20070025883
2007-02-01

Uses of parylene membrane filters

#57
20060254972
2006-11-16

Membrane filter for capturing circulating tumor cells

#58
20060127728
2006-06-15

Membrane-electrode assembly for fuel cell

#59
20060106190
2006-05-18

Polyphenylene-type polymers, preparation method thereof, membranes and fuel cell device comprising said membranes

#60
20060068668
2006-03-30

Microfiber supported nanofiber membrane

#61
20060043344
2006-03-02

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

#62
20050260475
2005-11-24

Polymer electrolyte membrane, method for producing same, and membrane electrode assembly and polymer electrolyte fuel cell comprising same

#63
20050260474
2005-11-24

Polymer electrolyte membrane and polymer electrolyte fuel cell comprising same

#64
20050244695
2005-11-03

Proton-conducting polymer membrane comprising a polymer with sulphonic acid groups and use thereof in fuel cells