ClassID:

30000

B01D71/12 - 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 derivatives

Sub-classes:
Recent Application in this class:
#1
20260061364
2026-03-05

STORAGE AND DELIVERY VESSELS AND RELATED METHODS

#2
20260043019
2026-02-12

METHOD FOR PRODUCING AND PURIFYING RNA, COMPRISING AT LEAST ONE STEP OF TANGENTIAL FLOW FILTRATION

#3
20250129359
2025-04-24

METHOD FOR PRODUCING AND PURIFYING RNA, COMPRISING AT LEAST ONE STEP OF TANGENTIAL FLOW FILTRATION

#4
20250108338
2025-04-03

SYSTEM AND METHOD FOR WATER PURIFICATION VIA A NANOCOMPOSITE MEMBRANE

#5
20240416290
2024-12-19

SEPARATION MEMBRANE

#6
20240335792
2024-10-10

METHOD FOR EXTRACTING EXOSOME

#7
20240247249
2024-07-25

Method for producing and purifying RNA, comprising at least one step of tangential flow filtration

#8
20230287388
2023-09-14

Method for producing and purifying RNA, comprising at least one step of tangential flow filtration

#9
20230234002
2023-07-27

OIL AND WATER SEPARATION MEMBRANE

#10
20230151352
2023-05-18

Method for producing and purifying RNA, comprising at least one step of tangential flow filtration

#11
20230080027
2023-03-16

STORAGE AND DELIVERY VESSELS AND RELATED METHODS

#12
20220325273
2022-10-13

Method for producing and purifying RNA, comprising at least one step of tangential flow filtration

#13
20210040473
2021-02-11

Method for producing and purifying RNA, comprising at least one step of tangential flow filtration

#14
20200277205
2020-09-03

FLUIDIC FLUID PURIFYING DEVICE AND ASSOCIATED PURIFYING METHOD

#15
20200246759
2020-08-06

SEPARATION FILM, CELLULOSE-BASED RESIN COMPOSITION, AND METHOD FOR PRODUCING SEPARATION FILM

#16
20200108355
2020-04-09

POLYMER MEMBRANE WITH ARABIC GUM FOR WATER TREATMENT

#17
20200070106
2020-03-05

DIALYSIS MEMBRANE AND METHOD FOR ITS PRODUCTION

#18
20200023320
2020-01-23

SEPARATION COMPOSITE MEMBRANE, SEPARATION MEMBRANE MODULE, SEPARATOR, COMPOSITION FOR FORMING SEPARATION MEMBRANE, AND METHOD OF PRODUCING SEPARATION COMPOSITE MEMBRANE

#19
20190046931
2019-02-14

Separation membrane

#20
20180298372
2018-10-18

Method for producing and purifying RNA, comprising at least one step of tangential flow filtration

#21
20180298152
2018-10-18

Dispersion liquid used for forming porous film, porous film, power storage element, and method for producing porous film

#22
20180272274
2018-09-27

Separation membrane for olefin separation and olefin separation method using the same

#23
20180186666
2018-07-05

System and method for reducing the dissolved solids of a non-potable aqueous flow

#24
20180085715
2018-03-29

COMPOSITION FOR MEMBRANE, METHOD OF PREPARING MEMBRANE USING THE SAME, MEMBRANE PREPARED THEREFROM AND APPARATUS FOR PURIFYING WATER

#25
20180021741
2018-01-25

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

#26
20170232405
2017-08-17

Dialysis membrane and method for its production

#27
20170209836
2017-07-27

Hollow-fiber membrane blood purification device

#28
20170123310
2017-05-04

METHOD OF FORMING AN ELECTRONIC DEVICE ON A FLEXIBLE SUBSTRATE

#29
20160325239
2016-11-10

COMPOSITE POLYAMIDE MEMBRANE INCLUDING CELLULOSE-BASED QUATERNARY AMMONIUM COATING

#30
20150375177
2015-12-31

Crosslinked cellulosic membranes

#31
20150367288
2015-12-24

Composite polyamide membrane including dissolvable polymer coating

#32
20150328591
2015-11-19

Porous polymer flat-sheet membrane

#33
20150298065
2015-10-22

High flux high efficiency nanofiber membranes and methods of production thereof

#34
20150274891
2015-10-01

MEMBRANES WITH IMPROVED FLUX AND METHOD FOR THEIR PREPARATION

#35
20150246327
2015-09-03

Porous membrane patterning technique

#36
20150122735
2015-05-07

Membrane for filtrating water

#37
20150068978
2015-03-12

ENHANCMENT OF MEMBRANE ROBUSTNESS BY TREATMENT WITH IONIC MATERIALS

#38
20150040758
2015-02-12

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

#39
20150027945
2015-01-29

Membrane filter including bile acid and a method of manufacturing the same

#40
20150013537
2015-01-15

Microencapsulated immobilized liquid membrane for carbon dioxide capture and associated methods

#41
20140319047
2014-10-30

FILTRATION MATERIAL AND METHOD FOR FABRICATING THE SAME

#42
20140042089
2014-02-13

DESALINATION TREATMENT MEMBRANE, DESALINATION TREATMENT METHOD, AND DESALINATION TREATMENT APPARATUS

#43
20130327704
2013-12-12

Electrochemical separation membrane and the manufacturing method thereof

#44
20130327701
2013-12-12

SEPARATION MEMBRANE AND WATER TREATMENT DEVICE INCLUDING A SEPARATION MEMBRANE

#45
20130313185
2013-11-28

FORWARD OSMOSIS MEMBRANE AND METHOD OF MANUFACTURE

#46
20130270177
2013-10-17

Dehydration processes using membranes with hydrophobic coating

#47
20130049246
2013-02-28

Process for production of porous membrane

#48
20110198282
2011-08-18

HIGH FLUX HIGH EFFICIENCY NANOFIBER MEMBRANES AND METHODS OF PRODUCTION THEREOF

#49
20100140162
2010-06-10

Osmosis membrane with improved flux rate and uses thereof

#50
20100104805
2010-04-29

Transparent film

#51
20090255405
2009-10-15

Gas separation membrane

#52
20090216173
2009-08-27

Blood detoxification membrane, method for producing same, and use thereof

#53
20090078640
2009-03-26

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

#54
20090057224
2009-03-05

Dehydration processes using membranes with hydrophobic coating

#55
20080311014
2008-12-18

Permselective membrane type reactor

#56
20080061001
2008-03-13

Method of stably producing microporous membrane and use thereof in method of separating and purifying nucleic acid

#57
20060096912
2006-05-11

Cellulose hydrate ultrafiltration membranes and method for their production

#58
15203514
2018-11-13

Highly selective, ultralight, electro-spun filter media for separating oil-water mixtures