ClassID:

29999

B01D71/10 - CPC Classification

Classification description:

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

Recent Application in this class:
#1
20260115668
2026-04-30

PREPARATION METHOD FOR TUBULAR GAS-PERMEABLE MEMBRANE AND WASTEWATER TREATMENT OF AMMONIA NITROGEN REMOVAL PROCESS

#2
20260102742
2026-04-16

MULTI-SCALED CELLULOSIC NETWORKS

#3
20260102479
2026-04-16

METHOD FOR THE PURIFICATION OF CAPSULAR POLYSACCHARIDES

#4
20260070023
2026-03-12

AFFINITY MEMBRANE AND METHOD OF PREPARATION

#5
20260042798
2026-02-12

CHROMATOGRAPHY-FREE ANTIBODY PURIFICATION METHOD

#6
20260034518
2026-02-05

GRAPHENE OXIDE COMPOSITE MEMBRANES

#7
20250375724
2025-12-11

FILTER SYSTEM USABLE AS CELL CULTURE CLARIFICATION FILTER IN PROTEIN PURIFICATION

#8
20250235830
2025-07-24

CELLULOSE ULTRAFILTRATION MEMBRANE AND PREPARATION METHOD THEREOF

#9
20250187948
2025-06-12

ALGINATE-GRAPHENE OXIDE HYDROGEL

#10
20250073644
2025-03-06

COMPOSITE NANOFILTRATION MEMBRANE CAPABLE OF EFFICIENTLY INTERCEPTING AMMONIUM SULFATE AND AMMONIUM NITRATE WHILE ADSORBING AND REMOVING MERCURY IONS AND PREPARATION METHOD THEREOF

#11
20250073636
2025-03-06

Membrane-based processing for ambient water-group species captured on the Moon and in space

#12
20250050281
2025-02-13

Preparation Method of Nanofiltration Membrane with Tree-Like Structure and Use

#13
20250033001
2025-01-30

MEMBRANE HAVING A HIGH POROUS SOLID CONTENT

#14
20250011829
2025-01-09

MEMBRANE FOR MICROBIOLOGICAL ANALYSIS

#15
20240400995
2024-12-05

METHOD FOR ISOLATING EXOSOMES WITH HIGH EFFICIENCY AND HIGH PURITY

#16
20240390862
2024-11-28

AFFINITY MEMBRANE AND METHOD OF PREPARATION

#17
20240342665
2024-10-17

CELLULOSE NANOFIBER (CNF) STABILIZED MEMBRANES AND METHODS OF MAKING THEREOF

#18
20240309118
2024-09-19

METHODS OF MODIFYING CELLULOSE CRYSTALLINITY

#19
20240175005
2024-05-30

PURIFICATION AND RECYCLING OF mRNA NUCLEOTIDE CAPS

#20
20240109041
2024-04-04

Semipermeable composite membrane, method of producing same, and semipermeable composite membrane element

#21
20240100489
2024-03-28

Carbon-based Systems for Simultaneous Adsorption and Release of Small Molecules

#22
20240058766
2024-02-22

METHOD FOR IMPROVING THE AIRTIGHTNESS OF BUILDINGS USING A BIOPOLYMER-BASED MEMBRANE

#23
20240025777
2024-01-25

SYSTEM AND METHOD FOR REDOX POLYMER ELECTRODIALYSIS

#24
20240009244
2024-01-11

DEVICES AND METHODS FOR PREPARING HUMAN MILK ORIGIN FORTIFIER COMPOSITIONS

#25
20240001309
2024-01-04

POROUS HOLLOW-FIBER MEMBRANE AND METHOD FOR TESTING INTEGRITY

#26
20230383013
2023-11-30

POROUS POLYMERIC CELLULOSE PREPARED VIA CELLULOSE CROSSLINKING

#27
20230321574
2023-10-12

Reduction of leachable beta-glucan levels from cellulose-containing filter materials

#28
20230285910
2023-09-14

CELLULOSE MEMBRANE AND METHOD OF MANUFACTURING SAME

#29
20230226499
2023-07-20

Ion-Selective Composite Membrane

#30
20230211295
2023-07-06

Device for Producing Energy by Salinity Gradient Through a Membrane Based on Crosslinked Cellulose Fibres

#31
20230149894
2023-05-18

SORBENT MATERIAL FOR REMOVING CONTAMINANTS FROM WATER

#32
20230026019
2023-01-26

VIRUS REMOVAL MEMBRANE AND METHOD FOR MANUFACTURING VIRUS REMOVAL MEMBRANE

#33
20220332755
2022-10-20

Virus filtration

#34
20220152561
2022-05-19

PREPARATION AND USE OF CELLULOSE NANOFIBER MEMBRANE

#35
20220143552
2022-05-12

FILTRATION

#36
20220023805
2022-01-27

Ultrafiltration/nanofiltration membrane with tunable pore size

#37
20210371457
2021-12-02

CHROMATOGRAPHY-FREE ANTIBODY PURIFICATION METHOD

#38
20210301035
2021-09-30

Methods of modifying cellulose crystallinity

#39
20210283556
2021-09-16

Semipermeable composite membrane, method of producing same, and semipermeable composite membrane element

#40
20210253790
2021-08-19

Method for separating organic zinc catalyst using filtering membrane

#41
20210236973
2021-08-05

Reduction of leachable beta-glucan levels from cellulose-containing filter materials

#42
20210178337
2021-06-17

Double-layered cellulose nanofiber material, method of manufacturing, membranes, and use thereof

#43
20210171665
2021-06-10

Porous polymeric cellulose prepared via cellulose crosslinking

#44
20210008506
2021-01-14

HYBRID MATERIALS FOR ORGANIC SOLVENT NANOFILTRATION AND PERVAPORATION MEMBRANES

#45
20200376444
2020-12-03

Modified Filter Membrane and Method

#46
20200346172
2020-11-05

FIBRILLATED FIBERS FOR LIQUID FILTRATION MEDIA

#47
20200298182
2020-09-24

Virus removal membrane and method for manufacturing virus removal membrane

#48
20200261854
2020-08-20

Self-supporting highly moisture-permeable heat-insulating aerogel film and preparation method thereof

#49
20200246758
2020-08-06

Porous body and process for manufacturing same

#50
20200238226
2020-07-30

FIBRILLATED FIBERS FOR LIQUID FILTRATION MEDIA

#51
20200230557
2020-07-23

Crosslinked unreinforced cellulose hydrate membrane, method for the production thereof, and use thereof

#52
20200191741
2020-06-18

Strip structure for measuring potassium ions

#53
20200188859
2020-06-18

Affinity membrane and method of preparation

#54
20200156964
2020-05-21

Membrane-based processing for ambient water-group species captured on the moon and in space

#55
20200061542
2020-02-27

METHODS FOR IMPROVING FILTERABILITY OF POLYSACCHARIDE-PROTEIN CONJUGATE REACTIONS

#56
20200047131
2020-02-13

High-flux thin-film nanocomposite reverse osmosis membrane for desalination

#57
20190388847
2019-12-26

Fibrillated fibers for liquid filtration media

#58
20190330383
2019-10-31

Polymer and method for producing polymer membrane

#59
20190329242
2019-10-31

Biomarker detection device

#60
20190257032
2019-08-22

FINE CELLULOSE FIBER SHEET

#61
20190247793
2019-08-15

Ultrafiltration membrane based on bacterial nanocellulose and graphene oxide

#62
20190224600
2019-07-25

Reduction of leachable beta-glucan levels from cellulose-containing filter materials

#63
20190218523
2019-07-18

REMOVAL OF CONTAMINATING VIRUSES FROM AAV PREPARATIONS

#64
20190218111
2019-07-18

Filtration medium for removal or inactivation of microorganisms from water

#65
20190209976
2019-07-11

Methods of filtering hydrocarbons from an aqueous mixture

#66
20190194627
2019-06-27

Method for purifying viruses or virus-like particles using a crosslinked cellulose hydrate membrane

#67
20190076777
2019-03-14

Gas separation membrane, gas separation membrane module, and gas separation device

#68
20190062458
2019-02-28

Porous polymeric cellulose prepared via cellulose crosslinking

#69
20190015547
2019-01-17

Semipermeable membrane and method of manufacturing the same

#70
20190009223
2019-01-10

Gas separation membrane

#71
20190001272
2019-01-03

Silk Solution Purification System, Concentrating System, and Methods Thereof

#72
20180345230
2018-12-06

High permeance and high selectivity facilitated transport membranes for olefin/paraffin separations

#73
20180333675
2018-11-22

Co-cast thin film composite flat sheet membranes for gas separations and olefin/paraffin separations

#74
20180280832
2018-10-04

Integrated membrane device

#75
20180273582
2018-09-27

SMALL MOLECULE AFFINITY MEMBRANE PURIFICATION SYSTEMS AND USES THEREOF

#76
20180264414
2018-09-20

Membranes and methods of use thereof

#77
20180186664
2018-07-05

Method of synthesizing cellulose nano-crystals from date palm seeds

#78
20180147327
2018-05-31

Printed article having a cellulose thermoplastic alloy composition and molding thereof

#79
20180147320
2018-05-31

Injectable homogeneous aqueous solution of chitosan having a pH close to the physiological pH

#80
20180141009
2018-05-24

Process and device for manufacturing a laminated material comprising a fibrillated cellulose layer

#81
20180104652
2018-04-19

REVERSE OSMOSIS MEMBRANE CLEANING METHOD AND REVERSE OSMOSIS MEMBRANE CLEANING APPARATUS

#82
20180100143
2018-04-12

Removal of contaminating viruses from AAV preparations

#83
20180072769
2018-03-15

VIRUS FILTRATION

#84
20180065092
2018-03-08

Preparation and use of cellulose nanofiber membrane

#85
20180021741
2018-01-25

Gas separation membrane, gas separation module, gas separation apparatus, and gas separation method

#86
20170333835
2017-11-23

Gas separation membrane, gas separation module, gas separation apparatus, gas separation method, and method for producing asymmetric gas separation membrane

#87
20170239626
2017-08-24

Permeation side flow path material for spiral membrane element and method for manufacturing same

#88
20170128892
2017-05-11

Fibrillated fibers for liquid filtration media

#89
20170106334
2017-04-20

Highly porous fibrous network materials for gas filtration

#90
20170096661
2017-04-06

CONCENTRATING NUCLEIC ACIDS IN URINE

#91
20170028360
2017-02-02

Virus removal membrane

#92
20170007957
2017-01-12

Removal of carbon dioxide from air

#93
20160325239
2016-11-10

COMPOSITE POLYAMIDE MEMBRANE INCLUDING CELLULOSE-BASED QUATERNARY AMMONIUM COATING

#94
20160304416
2016-10-20

Fermentation hydrocarbon gas products separation via membrane

#95
20160263554
2016-09-15

Nanofibrous materials for heavy metal adsorption

#96
20160177512
2016-06-23

Fine cellulose fiber sheet

#97
20160115647
2016-04-28

METHOD OF MAKING AND USING AN ELECTRICALLY CONDUCTIVE COMPOSITE MEMBRANE

#98
20150333306
2015-11-19

Porous separation film for secondary battery including cellulose fiber and silica, and method for manufacturing same

#99
20150273405
2015-10-01

FLUID SEPARATION UNIT

#100
20150232506
2015-08-20

Porous hollow fiber membrane

#101
20150204767
2015-07-23

Method for producing cell concentrate

#102
20150182909
2015-07-02

Apparatus for dehumidifying gas and methods of use

#103
20150141711
2015-05-21

Graphene oxide-based composite membranes

#104
20150080616
2015-03-19

Polymeric nanofibrous composite membranes for energy efficient ethanol dehydration

#105
20150075406
2015-03-19

POROUS BODY AND PROCESS FOR MANUFACTURING SAME

#106
20150068973
2015-03-12

Method for preparing a membrane from fibril cellulose and fibril, cellulose membrane

#107
20140346110
2014-11-27

Semipermeable filtration membrane with integrated producing circuit

#108
20140342434
2014-11-20

Removal of contaminating viruses from AAV preparations

#109
20140250669
2014-09-11

Crosslinked cellulosic nanofiltration membranes

#110
20140224727
2014-08-14

Fibrillated fibers for liquid filtration media

#111
20140116934
2014-05-01

REGENERATED CELLULOSE POROUS MEMBRANE FOR POROUS DIFFUSION AND METHOD OF MANUFACTURING SAME

#112
20140112841
2014-04-24

Device and method for removing a supernatant of a liquid sample, and use of a valve device having a soluble membrane

#113
20140091034
2014-04-03

NANOPARTICULATE FIBER SOLUTION, ITS FABRICATION PROCESS, AND NANOPARTICULATE FIBER MEMBRANE FILTER

#114
20140083930
2014-03-27

Desalination treatment membrane

#115
20130146539
2013-06-13

Membrane with localized asymmetries

#116
20130020243
2013-01-24

SEPARATION MEMBRANE, METHOD FOR MANUFACTURING THE SAME, AND WATER TREATMENT DEVICE INCLUDING THE SAME

#117
20120312737
2012-12-13

Programmable membrane system

#118
20120312691
2012-12-13

Reliable point of use membrane modification

#119
20120298319
2012-11-29

Method for producing cellulose-fiber flat structure

#120
20120292246
2012-11-22

MICROFLUIDIC DEVICES, PARTICULARLY FILTRATION DEVICES COMPRISING POLYMERIC MEMBRANES, AND METHOD FOR THEIR MANUFACTURE AND USE

#121
20120074062
2012-03-29

Microfluidic devices, particularly filtration devices comprising polymeric membranes, and methods for their manufacture and use

#122
20120031840
2012-02-09

Method for reducing amyloid beta concentration in blood

#123
20110253629
2011-10-20

Microfluidic devices, particularly filtration devices comprising polymeric membranes, and method for their manufacture and use

#124
20110168381
2011-07-14

Osmotic Water Transfer System and Related Processes

#125
20110163029
2011-07-07

Method for substance separation using a cellulose hydrate membrane in size exclusion chromatography

#126
20110147292
2011-06-23

Cellulose hydrate membrane, method for the production thereof, and use thereof

#127
20110120947
2011-05-26

Hydrophobic cellulose membrane, method for the production thereof, and use of same in hydrophobic interaction chromatography

#128
20110114559
2011-05-19

Hollow fibre membrane

#129
20110072965
2011-03-31

Carbon membranes from cellulose esters

#130
20100206811
2010-08-19

POLYMERIC MEMBRANES INCORPORATING NANOTUBES

#131
20100190965
2010-07-29

Method for separation of immunoglobulin monomers

#132
20100059440
2010-03-11

Cross-linked cellulose membranes

#133
20090277837
2009-11-12

Fluoropolymer Coated Membranes

#134
20090145831
2009-06-11

Pore diffusion type flat membrane separating apparatus

#135
20090078640
2009-03-26

High flux fluid separation membranes comprising a cellulose or cellulose derivative layer

#136
20080245736
2008-10-09

Crosslinked cellulosic nanofiltration membranes

#137
20070026219
2007-02-01

Cellulose-based microporous membrane

#138
20060157412
2006-07-20

Charged filtration membranes and uses therefor

#139
20060134758
2006-06-22

Process for obtaining a ccellulosic wet sheet and a membrane, the equipment used to obtain the membrane and the membrane obtained

#140
20050272925
2005-12-08

Crosslinked cellulosic membrane

#141
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

#142
18739856
2025-11-18

Graphene oxide composite membranes

#143
18581246
2024-09-10

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

#144
18134194
2023-09-26

Hydrophobic novel biofilm membrane modified with a spiropolyurethane

#145
14519743
2017-03-21

Surface functionalization of metal organic frameworks for mixed matrix membranes