Patents-Review.com
ClassID:

30005 ⎘

B01D71/22 - 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 Cellulose ethers

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

MECHANICALLY STABLE ULTRAFILTRATION MEMBRANE, AND METHOD FOR PRODUCING SAME

 #2
20250288960
2025-09-18

FILTRATION SYSTEM

 #3
20250073636
2025-03-06

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

 #4
20230053706
2023-02-23

Separation membrane and method for producing separation membrane

 #5
20220410081
2022-12-29

Mechanically stable ultrafiltration membrane, and method for producing same

 #6
20210370238
2021-12-02

Hydrophilic porous membrane and method for producing hydrophilic porous membrane

 #7
20210164951
2021-06-03

Gas detector

 #8
20210086139
2021-03-25

Hydrophilic porous membrane and method for producing hydrophilic porous membrane

 #9
20210023510
2021-01-28

Porous membrane and filter cartridge

 #10
20200238219
2020-07-30

Method for manufacturing gas separation membrane and gas separation membrane manufactured thereby

 #11
20200156964
2020-05-21

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

 #12
20200101416
2020-04-02

Methods of making high selectivity facilitated transport membranes, high selectivity facilitated transport membrane elements and modules

 #13
20150375177
2015-12-31

Crosslinked cellulosic membranes

 #14
20150328591
2015-11-19

Porous polymer flat-sheet membrane

 #15
20150157986
2015-06-11

Electron beam induced modification of membranes by polymers

 #16
20140014518
2014-01-16

Active components and membranes for electrochemical compression

 #17
20130245248
2013-09-19

Acetylated cellulose ether and articles including same

 #18
20130020243
2013-01-24

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

 #19
20120261321
2012-10-18

SEPARATION MEMBRANE, METHOD FOR MANUFACTURING THE SAME, AND FORWARD OSMOSIS DEVICE INCLUDING THE SAME

 #20
20120095202
2012-04-19

Processes for cross-linking cellulose ethers under mild conditions

 #21
20110244215
2011-10-06

Electron beam induced modification of membranes by polymers

 #22
20060157412
2006-07-20

Charged filtration membranes and uses therefor