ClassID:

30893

B01D2323/283 - CPC Classification

Classification description:

Details relating to membrane preparation; Pore treatments Reducing the pores

Recent Application in this class:
#1
20250153169
2025-05-15

TRANSPORT OF LIQUIDS AND SOLUTE MATERIALS IN NANOCHANNELS

#2
20240149242
2024-05-09

POLYMER COMPOSITE ARTICLE HAVING RETAINED SOLIDS AND METHODS OF FORMATION

#3
20220152561
2022-05-19

PREPARATION AND USE OF CELLULOSE NANOFIBER MEMBRANE

#4
20220134289
2022-05-05

Hollow fiber membrane and method for producing hollow fiber membrane

#5
20220023805
2022-01-27

Ultrafiltration/nanofiltration membrane with tunable pore size

#6
20210299654
2021-09-30

Transport of Liquids and Solute Materials in Nanochannels

#7
20210268451
2021-09-02

CERAMIC NANOFILTRATION MEMBRANE WITH POLYMERS GRAFTED INTO THE PORES AND METHOD OF PRODUCING SAME

#8
20210023508
2021-01-28

Graphene membrane filter for gas separation

#9
20200376444
2020-12-03

Modified Filter Membrane and Method

#10
20200316528
2020-10-08

Mitigating leaks in membranes

#11
20200261852
2020-08-20

Metal coated polymembrane

#12
20180318773
2018-11-08

COMPOSITE MATERIAL COMPRISING A NON-CROSSLINKED GEL POLYMER

#13
20180185791
2018-07-05

Mitigating leaks in membranes

#14
20180065092
2018-03-08

Preparation and use of cellulose nanofiber membrane

#15
20170239623
2017-08-24

Method for forming perforated graphene with uniform aperture size

#16
20170095777
2017-04-06

Method for the production of a filtration membrane having a mean molecular weight cut-off of < 1000 g/mol

#17
20170007964
2017-01-12

Metal coated polymembrane and method of electrofiltration and electrosorption using a metal coated polymembrane

#18
20160243545
2016-08-25

Transport of liquids and solute materials in nanochannels

#19
20160136572
2016-05-19

Acidic gas separation laminate and acidic gas separation module provided with laminate

#20
20150246319
2015-09-03

Water-proof air-permeable filter and use of the same

#21
20150122727
2015-05-07

Mitigating leaks in membranes

#22
20140263035
2014-09-18

Method for forming perforated graphene with uniform aperture size

#23
20140250669
2014-09-11

Crosslinked cellulosic nanofiltration membranes

#24
20140048477
2014-02-20

Hybrid porous structured material, membrane including the same, and method of preparing hybrid porous structured material

#25
20130087042
2013-04-11

Water-proof air-permeable filter and use of the same

#26
20120292255
2012-11-22

Filtration and use of metal nanoparticles as non-optical tags in chemical-, bio-chemical sensors and micro-electromechanical devices

#27
20120273362
2012-11-01

Surface charge enabled nanoporous semi-permeable membrane for desalination

#28
20120267249
2012-10-25

SURFACE CHARGE ENABLED NANOPOROUS SEMI-PERMEABLE MEMBRANE FOR DESALINATION

#29
20120196376
2012-08-02

Nanofilter devices using elastomeric micro to nanochannel interfaces and methods based thereon

#30
20120152843
2012-06-21

Ceramic membranes

#31
20120080058
2012-04-05

Application of rejection enhancing agents (REAs) that do not have cloud point limitations on desalination membranes

#32
20120055879
2012-03-08

Porous membrane and method of making the same

#33
20120006747
2012-01-12

Methods of dynamic filtration using centrifugal force and methods of making a dynamic filtration device

#34
20110290717
2011-12-01

Membrane post treatment

#35
20110127212
2011-06-02

CRYSTALLINE POLYMER MICROPOROUS MEMBRANE, METHOD FOR PRODUCING THE SAME, AND FILTRATION FILTER

#36
20110120935
2011-05-26

CRYSTALLINE POLYMER MICROPOROUS MEMBRANE, METHOD FOR PRODUCING THE SAME, AND FILTRATION FILTER

#37
20110094884
2011-04-28

Surface charge enabled nanoporous semi-permeable membrane for desalination

#38
20110094380
2011-04-28

ULTRA-THIN CO2 SELECTIVE ZEOLITE MEMBRANE FOR CO2 SEPARATION FROM POST-COMBUSTION FLUE GAS

#39
20110033617
2011-02-10

Method of making a composite porous material

#40
20100294132
2010-11-25

Asymmetric membrane and air-conditioning system using the same

#41
20100244306
2010-09-30

ASYMMETRIC GAS SEPARATION MEMBRANES WITH SUPERIOR CAPABILITIES FOR GAS SEPARATION

#42
20100213117
2010-08-26

Membrane post treatment

#43
20100203400
2010-08-12

Humidifier membrane

#44
20100051561
2010-03-04

Porous membrane and method of making the same

#45
20100044309
2010-02-25

Dynamic filtration device using centrifugal force

#46
20090280304
2009-11-12

Method for defining regions of differing porosity of a nitrocellulose film on a substrate

#47
20090252871
2009-10-08

Method for producing a membrane comprising micropassages made from porous material by chemical mechanical polishing

#48
20090233351
2009-09-17

Method for controlling pressure-difference bubble transfer

#49
20090184047
2009-07-23

Functionalized nanopore membranes and related methods of use

#50
20090176052
2009-07-09

COMPOSITE MATERIAL COMPRISING A NON-CROSSLINKED GEL POLYMER

#51
20090139925
2009-06-04

Multizone polymer membrane and dialyzer

#52
20090112075
2009-04-30

Selectively permeable coated membrane

#53
20090101560
2009-04-23

HYDROFLUORIC ACID TREATMENT APPARATUS

#54
20090087605
2009-04-02

Composite porous materials and methods of making and using the same

#55
20090007532
2009-01-08

Composite ceramic body, method of manufacturing the same and ceramic filter assembly

#56
20080272050
2008-11-06

Multi-Barrier Water Purification System and Method

#57
20080245736
2008-10-09

Crosslinked cellulosic nanofiltration membranes

#58
20080203011
2008-08-28

Support Having an Altered Porosity and Membrane for the Tangential Flow Filtration

#59
20080143014
2008-06-19

Asymmetric Gas Separation Membranes with Superior Capabilities for Gas Separation

#60
20070190880
2007-08-16

Porous substrates, articles, systems and compositions comprising nanofibers and methods of their use and production

#61
20070102347
2007-05-10

Temperature-responsive membrane, temperature-responsive membrane module, and membrane filtration system in which the same are used

#62
20070080107
2007-04-12

Nanoporous membrane and method of fabricating the same

#63
20060269735
2006-11-30

Composite membrane and method for forming the same

#64
20060167120
2006-07-27

Carbon nanotube-containing catalysts, methods of making, and reactions catalyzed over nanotube catalysts

#65
20060157404
2006-07-20

Membrane post treatment

#66
20060014010
2006-01-19

Composite membrane having oleophobic properties

#67
20050170159
2005-08-04

Composite porous materials and methods of making and using the same

#68
20050040090
2005-02-24

Carbon nanotube-containing structures, methods of making, and processes using same

#69
15273445
2018-11-20

Biomimetic membranes and methods of making biomimetic membranes

#70
13253964
2016-11-08

Biomimetic membranes and methods of making biomimetic membranes