ClassID:

29954

B01D67/0081 - CPC Classification

Classification description:

Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus After-treatment of organic or inorganic membranes

Sub-classes:
Recent Application in this class:
#1
20250269332
2025-08-28

Modular Membrane Materials for Separation Systems and Methods of Use thereof

#2
20250222407
2025-07-10

HOT MELT MEMBRANE SPACERS

#3
20240424450
2024-12-26

BACTERIOPHAGE-DERIVED NANOPORE SENSORS

#4
20240017217
2024-01-18

SPACERS COMPATIBLE WITH ACTIVE LAYER IN FLUID FILTRATION ELEMENTS

#5
20240002609
2024-01-04

SOLUTION OF SULFONE POLYMERS IN N-TERT.-BUTYL-2-PYRROLIDONE FOR THE USE OF MEMBRANES

#6
20230311469
2023-10-05

Methods for depositing spacers on a membrane

#7
20230014014
2023-01-19

Independent spacers and methods

#8
20210086141
2021-03-25

Bacteriophage-derived nanopore sensors

#9
20210039054
2021-02-11

Zwitterion-containing membranes

#10
20190351372
2019-11-21

High separation performance polydialkylsiloxane pervaporation membranes

#11
20190099722
2019-04-04

Method of making carbon molecular sieve membranes

#12
20180369761
2018-12-27

Method of making carbon molecular sieve membranes

#13
20170296981
2017-10-19

Gas separation membranes with intermixed layers

#14
20170239623
2017-08-24

Method for forming perforated graphene with uniform aperture size

#15
20170065939
2017-03-09

Membrane based on graphene and method of manufacturing same

#16
20160303523
2016-10-20

Zwitterion-containing membranes

#17
20150343389
2015-12-03

Curable compositions and membranes

#18
20150298071
2015-10-22

Composite gas separation membranes with dialkysiloxane intermediate layer

#19
20150258506
2015-09-17

Layer-by-layer assembly of graphene oxide membranes via electrostatic interaction and eludication of water and solute transport mechanisms

#20
20150224450
2015-08-13

Electrically conducting reverse osmosis membranes

#21
20150209733
2015-07-30

Process for preparing membranes

#22
20150165369
2015-06-18

Process for preparing membranes

#23
20150143995
2015-05-28

Gas separation membranes with intermixed layers

#24
20150040764
2015-02-12

Method for producing air-permeable composite sheet

#25
20140263035
2014-09-18

Method for forming perforated graphene with uniform aperture size

#26
20140041699
2014-02-13

DEVICE FOR CLEANING POROUS HOLLOW FIBER MEMBRANE

#27
20130307171
2013-11-21

WASHING DEVICE FOR POROUS HOLLOW FIBER MEMBRANES, AND POROUS HOLLOW FIBER MEMBRANE PRODUCTION METHOD

#28
20130292867
2013-11-07

WASHING APPARATUS, AND PROCESS FOR PRODUCING POROUS MEMBRANE

#29
20130026088
2013-01-31

Membrane and membrane separation system

#30
20120018370
2012-01-26

Silica membrane and method for manufacturing the same

#31
20110268961
2011-11-03

Method for producing air-permeable composite sheet

#32
20100176052
2010-07-15

PROCESS FOR PRODUCING COMPOSITE SEMIPERMEABLE MEMBRANE

#33
20100173083
2010-07-08

SEMIPERMEABLE COMPOSITE MEMBRANE AND PROCESS FOR PRODUCING THE SAME

#34
20080053893
2008-03-06

Semipermeable Composite Membrane and Process for Producing the Same

#35
20070181497
2007-08-09

RO membrane cleaning method

#36
20060119015
2006-06-08

Method for producing hollow fibres

#37
16881220
2022-06-21

CNT-based reverse osmosis desalination