ClassID:

30003

B01D71/18 - 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; Esters of organic acids Mixed esters, e.g. cellulose acetate-butyrate

Recent Application in this class:
#1
20260145140
2026-05-28

MECHANICALLY STABLE ULTRAFILTRATION MEMBRANE, AND METHOD FOR PRODUCING SAME

#2
20230277980
2023-09-07

High free volume membrane for gas separation

#3
20230055555
2023-02-23

METHOD FOR PREPARING PEPTIDE EMULSION FORMULATION

#4
20220410081
2022-12-29

Mechanically stable ultrafiltration membrane, and method for producing same

#5
20220212139
2022-07-07

High free volume membrane for gas separation

#6
20210139611
2021-05-13

Cellulose ester and molded article thereof

#7
20200270368
2020-08-27

CELLULOSE MIXED ESTER AND MOLDED ARTICLE OF SAME

#8
20200261751
2020-08-20

3-DIMENSIONAL NASAL FILTER POD

#9
20200246759
2020-08-06

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

#10
20200197880
2020-06-25

Separation membrane

#11
20200038814
2020-02-06

Separating membrane and method for manufacturing separating membrane

#12
20200023321
2020-01-23

Separation film and production method therefor

#13
20190161557
2019-05-30

Cellulose ester and molded article thereof

#14
20190151806
2019-05-23

Semipermeable membrane

#15
20180280893
2018-10-04

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

#16
20180133663
2018-05-17

HIGH SELECTIVITY CHEMICALLY CROSS-LINKED RUBBERY MEMBRANES AND THEIR USE FOR SEPARATIONS

#17
20180133661
2018-05-17

HIGH FLUX, CROSS-LINKED, FUMED SILICA REINFORCED POLYORGANOSILOXANE MEMBRANES FOR SEPARATIONS

#18
20180065093
2018-03-08

Separation membrane

#19
20170296984
2017-10-19

Separation membrane

#20
20120175300
2012-07-12

TWO-LAYER MEMBRANE

#21
20120174791
2012-07-12

Gas separation membrane

#22
20120000846
2012-01-05

POLYMER COATED HYDROLYZED MEMBRANE

#23
20100244306
2010-09-30

ASYMMETRIC GAS SEPARATION MEMBRANES WITH SUPERIOR CAPABILITIES FOR GAS SEPARATION

#24
20080143014
2008-06-19

Asymmetric Gas Separation Membranes with Superior Capabilities for Gas Separation

#25
20060226067
2006-10-12

Asymmetric forward osmosis membranes

#26
20050164025
2005-07-28

Semipermeable hydrophilic membrane