ClassID:

29998

B01D71/08 - CPC Classification

Classification description:

Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor; Organic material Polysaccharides

Sub-classes:
Recent Application in this class:
#1
20250332552
2025-10-30

MIXED MATRIX MEMBRANES

#2
20250325945
2025-10-23

ADSORPTIVE MEMBRANES FOR RECOVERY OF LITHIUM AND SOLAR-DRIVEN RECYCLING OF WATER FROM GEOTHERMAL BRINES

#3
20250187948
2025-06-12

ALGINATE-GRAPHENE OXIDE HYDROGEL

#4
20250170532
2025-05-29

BETA-CYCLODEXTRIN THIN FILM COMPOSITE MEMBRANES FOR NANOFILTRATION

#5
20240375059
2024-11-14

METAL-ORGANIC FRAMEWORK (MOF)-801@CHITOSAN (CS) PERVAPORATION MEMBRANE AND USE THEREOF IN METHANOL/DIMETHYL CARBONATE SEPARATION

#6
20240344006
2024-10-17

METHOD OF MANUFACTURE FOR EDIBLE, POROUS CROSS-LINKED HOLLOW FIBERS AND MEMBRANES BY PH INDUCED PHASE SEPARATION AND USES THEREOF

#7
20240075433
2024-03-07

MEMBRANE WITH IMMOBILIZED ANTICOAGULANT AND PROCESS FOR PRODUCING SAME

#8
20230311069
2023-10-05

GREEN MEMBRANES FOR ORGANIC SOLVENT NANOFILTRATION AND PERVAPORATION

#9
20230271145
2023-08-31

ROBUST NANOFILMS PREPARED FROM SUSTAINABLE MATERIALS

#10
20230110094
2023-04-13

HOLLOW FIBER FILTRATION CARTRIDGE AND METHODS THEREOF

#11
20220193617
2022-06-23

METHOD FOR MANUFACTURING A MEMBRANE WITH HIGH PERCOLATION POWER

#12
20220134292
2022-05-05

IONICALLY CONDUCTIVE THIN FILM COMPOSITE MEMBRANES FOR ENERGY STORAGE APPLICATIONS

#13
20220072484
2022-03-10

CHITOSAN BASED MEMBRANE AND ASSOCIATED METHOD OF USE

#14
20220062815
2022-03-03

SYSTEM AND METHOD FOR RECOVERING CARBON MONOXIDE CONTAINED IN INDUSTRIAL BY-PRODUCT GAS

#15
20210403850
2021-12-30

SEMIPERMEABLE MEMBRANE AND USES THEREOF

#16
20210354079
2021-11-18

Replenishing liquid material to a membrane within a multi-module system

#17
20210346839
2021-11-11

Gas Permeation Process Through Crosslinked Membrane

#18
20210283550
2021-09-16

Gas separation membrane module

#19
20210268447
2021-09-02

GRAVITY-DRIVEN CHITOSAN-ENHANCED MELAMINE SPONGE FOR STABLE ULTRAFAST FILTRATION

#20
20210245108
2021-08-12

Microporous membrane and methods to make same

#21
20210164951
2021-06-03

Gas detector

#22
20200406200
2020-12-31

GREEN MEMBRANES FOR ORGANIC SOLVENT NANOFILTRATION AND PERVAPORATION

#23
20200368696
2020-11-26

Agarose ultrafiltration membrane composites for size based separations

#24
20200269193
2020-08-27

Deeply grooved nanoparticle-coated nanofibers

#25
20200254396
2020-08-13

Precise fabrication of activated-hydrophilic-hydrophobic MXenes-based multidimensional nanosystems for efficient and prompt water purification from petroleum wastes and desalination process under ambient conditions

#26
20200215495
2020-07-09

Advanced filtration membranes using chitosan and graphene oxide

#27
20200215494
2020-07-09

Chitosan-graphene oxide membranes

#28
20200129932
2020-04-30

HIGH PERMSELECTIVITY OF PVA/GA/CS-M+ MEMBRANE FOR DEHYDRATION OF ORGANIC SOLVENT AND PREPARATION METHOD THEREOF

#29
20200103165
2020-04-02

SYSTEMS AND METHODS OF DEBOTTLENECKING PROPANE FEED

#30
20200087656
2020-03-19

Sample preparation device and methods of use

#31
20190292074
2019-09-26

Methods for preparing porous nanocomposite polymer hydrogel beads for water treatment

#32
20190247793
2019-08-15

Ultrafiltration membrane based on bacterial nanocellulose and graphene oxide

#33
20190193022
2019-06-27

Gas Separation Membrane

#34
20190139664
2019-05-09

Composition for removing radionuclide and method for removing radionuclide using the same

#35
20190105607
2019-04-11

Composite reverse osmosis membrane, a water filtration system and a method of manufacturing same

#36
20190076787
2019-03-14

Microporous membrane and methods to make same

#37
20190060844
2019-02-28

High flux reverse osmosis membrane comprising polyethersulfone/polyethylene oxide-polysilsesquioxane blend membrane for water purification

#38
20190060841
2019-02-28

High selectivity facilitated transport membrane comprising polyethersulfone/polyethylene oxide-polysilsesquioxane blend membrane for olefin/paraffin separations

#39
20190039027
2019-02-07

Chitosan-graphene oxide membranes and process of making the same

#40
20190039026
2019-02-07

Advanced filtration membranes using chitosan and graphene oxide

#41
20190038826
2019-02-07

Blood filtration system containing mannose coated substrate

#42
20190030494
2019-01-31

Cryogel for the removal of heparins and heparinoids from aqueous solutions, physiological solutions and biological fluids, preparation process and uses thereof

#43
20180318773
2018-11-08

COMPOSITE MATERIAL COMPRISING A NON-CROSSLINKED GEL POLYMER

#44
20180243697
2018-08-30

REPLENISHING LIQUID MATERIAL TO MEMBRANE

#45
20180169594
2018-06-21

Gas separation memebrane

#46
20180169593
2018-06-21

Agarose ultrafiltration membrane composites for size based separations

#47
20180147543
2018-05-31

Functionalized membranes for bioartificial organs

#48
20180051047
2018-02-22

Technology for extracting and preparing high-purity raffinose from defatted wheat germ

#49
20170354918
2017-12-14

High selectivity facilitated transport membranes and their use for olefin/paraffin separations

#50
20170348648
2017-12-07

Nanocomposite blend membrane

#51
20170274377
2017-09-28

Micro nanoporous membrane, preparing method thereof and microfluidic device using thereof

#52
20170233720
2017-08-17

Sample Preparation Device and Methods of Use

#53
20170157571
2017-06-08

Electrospun cactus mucilage nanofibers

#54
20170043301
2017-02-16

Composite membrane with support comprising poly(phenylene ether) and amphilphilic polymer; method of making; and separation module thereof

#55
20160339395
2016-11-24

Double crosslinked sodium alginate/polyvinyl alcohol composite nanofiltration membrane and preparation method thereof

#56
20160303524
2016-10-20

POLYACRYLONITRILE/CHITOSAN COMPOSITE NANOFILTRATION MEMBRANE CONTAINING GRAPHENE OXIDE AND PREPARATION METHOD THEREOF

#57
20160263554
2016-09-15

Nanofibrous materials for heavy metal adsorption

#58
20160243505
2016-08-25

Seaweed polysaccharide based superhydrophilic foam membrane for energy-efficient oil-water separation

#59
20160207007
2016-07-21

CHITOSAN ULTRA-THIN FILM COMPOSITE NANOFILTRATION MEMBRANES

#60
20160144321
2016-05-26

GRAPHENE FILTERING SHEET AND METHOD OF FABRICATING THE SAME

#61
20160101229
2016-04-14

BLOOD FILTRATION SYSTEM CONTAINING MANNOSE COATED SUBSTRATE

#62
20160023168
2016-01-28

Complex nanofiltration membrane and the preparation thereof

#63
20150353381
2015-12-10

Porous nanocomposite polymer hydrogels for water treatment

#64
20150321146
2015-11-12

Composite membrane utilized in membrane distillation

#65
20150157986
2015-06-11

Electron beam induced modification of membranes by polymers

#66
20150151256
2015-06-04

MEMBRANE WITH AN ISOPOROUS, ACTIVE SEPARATION LAYER, AND METHOD FOR PRODUCING A MEMBRANE

#67
20150040758
2015-02-12

METHOD AND APPARATUS FOR CRYOGEN-FREE CONCENTRATION OF A HYPERPOLARIZED GAS IN A CONTINUOUSLY FLOWING STREAM OF GAS, AND USE

#68
20140260986
2014-09-18

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

#69
20140245884
2014-09-04

Replenishing liquid material to membrane

#70
20130334123
2013-12-19

Microporous membrane and method for forming

#71
20130287958
2013-10-31

Method and apparatus of producing composite for carbon dioxide separation

#72
20130228515
2013-09-05

Facilitated transport membrane for the separation of aromatics from non-aromatics

#73
20130068692
2013-03-21

Electrospun cactus mucilage nanofibers

#74
20120097603
2012-04-26

Process for fabricating membrane filters, and membrane filters

#75
20110244215
2011-10-06

Electron beam induced modification of membranes by polymers

#76
20110244127
2011-10-06

Method of forming coated structures

#77
20110225940
2011-09-22

Microporous membrane and method for forming

#78
20110217539
2011-09-08

Porous interpenetrating polymer network

#79
20110132834
2011-06-09

Composite semipermeable membrane and manufacturing method therefor

#80
20100323573
2010-12-23

High flux and low fouling filtration media

#81
20090255405
2009-10-15

Gas separation membrane

#82
20090176052
2009-07-09

COMPOSITE MATERIAL COMPRISING A NON-CROSSLINKED GEL POLYMER

#83
20080221497
2008-09-11

Use of Arginine and Like Substances and methylglyoxal and Like Substances in Dialysis Machines

#84
20070082245
2007-04-12

Evaporative cooling system for fuel cell systems using cathode product water

#85
20070082141
2007-04-12

Composite membrane for separating organic solvents and the method for fabricating the same

#86
20050272925
2005-12-08

Crosslinked cellulosic membrane

#87
20050191426
2005-09-01

Method of forming coated structures

#88
20050139537
2005-06-30

Negatively charged membrane

#89
20050077232
2005-04-14

Composite membrane for separating organic solvents and the method for fabricating the same

#90
15200224
2017-07-11

Superpolar chromatographic stationary phases and extraction sorbents and their methods of synthesis