ClassID:

30928

B01D2325/22 - CPC Classification

Classification description:

Details relating to properties of membranes Thermal or heat-resistance properties

Recent Application in this class:
#1
20260066475
2026-03-05

IMPROVED STRENGTH MICROPOROUS MEMBRANES, SEPARATOR MEMBRANES, BASE FILMS, AND BATTERY SEPARATORS

#2
20250352955
2025-11-20

PLASMONIC TITANIUM NITRIDE-CONTAINING MIXED MATRIX MEMBRANES AND RELATED MEMBRANE DISTILLATION METHODS

#3
20250319445
2025-10-16

POLYETHYLENE MICROPOROUS MEMBRANE, METHOD FOR MANUFACTURING THE SAME, AND SEPARATOR INCLUDING MICROPOROUS MEMBRANE

#4
20250288960
2025-09-18

FILTRATION SYSTEM

#5
20250041793
2025-02-06

PROCESS FOR PREPARING A POLYBENZOXAZINE-DERIVED CARBON MEMBRANE, CARBON MEMBRANE, USE OF SAID MEMBRANE FOR SEPARATING INDUSTRIAL GASES AND PERMEATION MODULE

#6
20250001365
2025-01-02

SEPARATION MEMBRANE MODULE

#7
20240382909
2024-11-21

POLYETHYLENE MICROPOROUS MEMBRANE, METHOD FOR MANUFACTURING THE SAME, AND SEPARATOR INCLUDING MICROPOROUS MEMBRANE

#8
20240351876
2024-10-24

THERMALLY STABLE POROUS MEMBRANE AND ITS MANUFACTURING METHOD

#9
20240261736
2024-08-08

CARBON MOLECULAR SIEVE MEMBRANE PREPARED FROM HYDROQUINONE AND THE METHOD OF MANUFACTURING

#10
20240261733
2024-08-08

FLUORINATED FILTER MEMBRANE, FILTERS, AND METHODS

#11
20240253287
2024-08-01

MICROLAYER MEMBRANES, BATTERY SEPARATORS, BATTERIES, AND RELATED METHODS

#12
20240158589
2024-05-16

HEAT STABILIZED MEMBRANE

#13
20240100488
2024-03-28

High Temperature-Resistant Composite Nanofiltration Membrane And Preparation Method Thereof

#14
20230415101
2023-12-28

METAL-ORGANIC FRAMEWORK MATERIAL SEPARATION MEMBRANE, PREPARATION METHOD THEREFOR, AND USE THEREOF

#15
20230211296
2023-07-06

POROUS MEMBRANE OF POLYTETRAFLUOROETHYLENE AND/OR MODIFIED POLYTETRAFLUOROETHYLENE HAVING HIGH STRENGTH AND SMALL PORE DIAMETER

#16
20230191333
2023-06-22

SPIRAL WOUND MEMBRANE ELEMENT FOR HIGH TEMPERATURE FILTRATION

#17
20230166219
2023-06-01

CATION EXCHANGE MEMBRANE AND METHOD FOR PRODUCING SAME

#18
20230073866
2023-03-09

SEPARATION MEMBRANE MODULE

#19
20230032023
2023-02-02

Fe-Al-based metal porous membrane and preparation method thereof

#20
20220379267
2022-12-01

SYSTEMS AND METHODS FOR PURIFYING AQUEOUS SOLUTIONS

#21
20220288529
2022-09-15

Ammonia separation method and zeolite

#22
20220226784
2022-07-21

Hollow Fiber Membrane

#23
20220152584
2022-05-19

GAS-TIGHT, HEAT-PERMEABLE MULTILAYER CERAMIC COMPOSITE TUBE

#24
20220072483
2022-03-10

MEMBRANE AND METHOD OF PRODUCING THE SAME

#25
20220037047
2022-02-03

Diffusion window for radioactive heat source

#26
20220023804
2022-01-27

Intrinsically microporous ladder-type Tröger's base polymers

#27
20210245112
2021-08-12

MIXED MATRIX MEMBRANES, AND RELATED GAS SEPARATION MEMBRANE APPARATUSES, GASEOUS FLUID TREATMENT SYSTEMS, AND METHODS

#28
20210237000
2021-08-05

Perfluoropolymer hollow fiber composite membrane preparation method

#29
20210218108
2021-07-15

POLYOLEFIN COMPOSITE POROUS FILM, METHOD OF PRODUCING SAME, BATTERY SEPARATOR, AND BATTERY

#30
20210194095
2021-06-24

Microlayer membranes, battery separators, batteries, and related methods

#31
20210178338
2021-06-17

ULTRATHIN-FILM COMPOSITE MEMBRANE BASED ON THERMALLY REARRANGED POLY(BENZOXAZOLE-IMIDE) COPOLYMER, AND PRODUCTION METHOD THEREFOR

#32
20210138408
2021-05-13

FLAT SHEET POROUS MEMBRANE

#33
20210138393
2021-05-13

Ammonia separation method and zeolite

#34
20210060492
2021-03-04

Thermally reflective membrane apparatuses, and related fluid treatment systems and methods

#35
20210039053
2021-02-11

Fluorine-based resin porous membrane and method for preparing the same

#36
20200384420
2020-12-10

Spiral wound membrane element for high temperature filtration

#37
20200368688
2020-11-26

Black liquor concentration by a membrane comprising graphene oxide on porous polymer

#38
20200238223
2020-07-30

NANOFILTRATION OR REVERSE OSMOSIS MEMBRANE MADE OF HARD CARBON FILM, FILTERING FILTER, TWO-LAYER-BONDED-TYPE FILTERING FILTER, AND METHODS FOR MANUFACTURING SAME

#39
20200122092
2020-04-23

Composite reverse osmosis membrane and preparation method thereof

#40
20200114307
2020-04-16

Ammonia separation method and zeolite

#41
20200078724
2020-03-12

Polymer blended membranes for sour gas separation

#42
20190282961
2019-09-19

Fluorinated filter membrane, filters, and methods

#43
20190267594
2019-08-29

Nanoporous ultra-high molecular weight polyethylene membrane

#44
20190252664
2019-08-15

Microporous membrane lithium ion secondary battery and method of producing the microporous membrane

#45
20190203002
2019-07-04

Ion exchange membrane, method for producing ion exchange membrane, and electrolyzer

#46
20190083942
2019-03-21

Method for manufacturing gas separation membrane

#47
20190060843
2019-02-28

Composite membranes and applications thereof

#48
20190039016
2019-02-07

Plasticization-resistant polyurethane membrane and preparation method thereof

#49
20190015794
2019-01-17

Power distribution system with self-learning low power standby reduction

#50
20180369757
2018-12-27

Porous hollow fiber membrane

#51
20180345211
2018-12-06

Polymer blended membranes for sour gas separation

#52
20180272288
2018-09-27

Method of preparing perm-selective porous membrane and method of separating gases using porous membrane prepared thereby

#53
20180237301
2018-08-23

Carbon nanotube laminates

#54
20180163089
2018-06-14

Porous air permeable polytetrafluoroethylene composites with improved mechanical and thermal properties

#55
20180141006
2018-05-24

Carbon-containing membrane for water and gas separation

#56
20180079929
2018-03-22

Porous air permeable polytetrafluoroethylene composites with improved mechanical and thermal properties

#57
20170312702
2017-11-02

Porous calcium-silicates and method of synthesis

#58
20170239627
2017-08-24

Process for making membranes

#59
20170203262
2017-07-20

COMPOSITE SEMIPERMEABLE MEMBRANE

#60
20170189865
2017-07-06

Filtration material

#61
20170149038
2017-05-25

Polyolefin multilayer microporous membrane and battery separator

#62
20170100697
2017-04-13

Catalytic layer and use thereof in oxygen-permeable membranes

#63
20170092920
2017-03-30

Polyolefin microporous membrane and production method thereof

#64
20170001154
2017-01-05

Separation membrane, sheet channel material, and separation membrane element

#65
20160236151
2016-08-18

High temperature resistant epoxy resins for producing hollow fiber membrane modules for high temperature gas separation applications

#66
20160096152
2016-04-07

Substrate for liquid filter

#67
20160082398
2016-03-24

Substrate for liquid filter

#68
20160082397
2016-03-24

Substrate for liquid filter

#69
20160075915
2016-03-17

Porous air permeable polytetrafluoroethylene composites with improved mechanical and thermal properties

#70
20160074815
2016-03-17

Separation membranes formed from perforated graphene and methods for use thereof

#71
20150328582
2015-11-19

Electrode-support type of gas-separation membrane module, tubular structure of same, production method for tubular structure, and hydrocarbon reforming method using same

#72
20150217240
2015-08-06

Membranes for dewatering acid mixtures

#73
20150174548
2015-06-25

Catalytic microchannel reformer

#74
20150068978
2015-03-12

ENHANCMENT OF MEMBRANE ROBUSTNESS BY TREATMENT WITH IONIC MATERIALS

#75
20150041386
2015-02-12

Filter element with improved testability after dry steaming

#76
20150020686
2015-01-22

Heat resistant hydrogen separation membrane and method for manufacturing same

#77
20140217013
2014-08-07

Polyketone porous film

#78
20140158610
2014-06-12

Composite mixed matrix membranes for membrane distillation and related methods of manufacture

#79
20140137740
2014-05-22

Carbon dioxide separation member, method for producing same, and carbon dioxide separation module

#80
20140083929
2014-03-27

Microporous modified-polytetrafluoroethylene membrane, porous-modified-polytetrafluoroethylene-membrane composite and production process thereof, and separation membrane element

#81
20140050856
2014-02-20

Membrane for separating methane or carbon dioxide, and production thereof

#82
20130252067
2013-09-26

Method of producing polyolefin microporous membrane and separator for lithium ion battery

#83
20130126420
2013-05-23

Ceramic filter

#84
20130053467
2013-02-28

Porous ABPBI [poly (2, 5-benzimidazole)] membrane and process of preparing the same

#85
20130045412
2013-02-21

Microporous membranes and methods for producing and using such membranes

#86
20130022509
2013-01-24

Silica-based hydrogen separation material and manufacturing method therefor, as well as hydrogen separation module and hydrogen production apparatus having the same

#87
20120318145
2012-12-20

Oxygen separation membrane

#88
20120308807
2012-12-06

Porous Materials

#89
20120251868
2012-10-04

LAMINATED FILM AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

#90
20120234750
2012-09-20

THERMALLY, HEAT AND CHEMICALLY RESISTANT ULTRAFILTRATION POLYIMIDE MEMBRANE AND METHOD FOR ITS PRODUCTION

#91
20120223017
2012-09-06

Oil purification method and apparatus with porous membrane

#92
20120201974
2012-08-09

METHOD FOR THE HIGH-TEMPERATURE-RESISTANT BONDING OF OXYGEN-PERMEABLE OXIDE CERAMICS BASED ON SUBSTITUTED ALKALINE-EARTH COBALTATES BY MEANS OF DOPING-SUPPORTED DIFFUSIVE REACTIVE SINTERING

#93
20120193285
2012-08-02

Method for producing resin porous membrane with adhesive layer, resin porous membrane with adhesive layer, and filter member

#94
20120138535
2012-06-07

Perforated membranes

#95
20120135289
2012-05-31

POLYOLEFIN MICROPOROUS MEMBRANE AND SEPARATOR FOR LITHIUM ION BATTERY

#96
20120103904
2012-05-03

SEPARATION MEMBRANE MODULE FOR OIL-CONTAINING WASTEWATER TREATMENT, OIL-CONTAINING WASTEWATER TREATMENT METHOD, AND OIL-CONTAINING WASTEWATER TREATMENT APPARATUS

#97
20120070644
2012-03-22

Microporous Polyolefin Multilayer Film Possessing Good Mechanical Properties and Thermal Stability

#98
20120067548
2012-03-22

POLYMERIC MEMBRANE FOR HEAT EXCHANGE APPLICATIONS AND METHOD OF FABRICATION THEREOF

#99
20120058403
2012-03-08

Hydrogen purification membranes, components and fuel processing systems containing the same

#100
20120042777
2012-02-23

GAS SEPARATION USING MEMBRANES COMPRISING POLYBENZOXAZOLES PREPARED BY THERMAL REARRANGEMENT

#101
20120003524
2012-01-05

Metal oxide ultrafine fiber-based composite separator with heat resistance and secondary battery using same

#102
20110269900
2011-11-03

Polypropylene resin composition for use in formation of microporous membrane

#103
20110240553
2011-10-06

Crystalline polymer microporous membrane and filtration filter

#104
20110227006
2011-09-22

Acidic ion exchange membrane and method for making and using the same

#105
20110178193
2011-07-21

PROCESS FOR PRODUCING ETHYLENE/TETRAFLUOROETHYLENE COPOLYMER POROUS MATERIAL, AND ETHYLENE/TETRAFLUOROETHYLENE COPOLYMER POROUS MATERIAL

#106
20110159343
2011-06-30

MICROPOROUS POLYMERIC MEMBRANES, METHODS FOR MAKING SUCH MEMBRANES, AND THE USE OF SUCH MEMBRANES AS BATTERY SEPARATOR FILM

#107
20110139007
2011-06-16

Hydrogen separator and process for production thereof

#108
20110116985
2011-05-19

Hydrogen purification membranes, components and fuel processing systems containing the same

#109
20110009506
2011-01-13

Preparation method of polybenzoxazoles by thermal rearrangement, polybenzoxazoles prepared thereby, and gas separation membrane comprising the same

#110
20100305217
2010-12-02

High performance membrane

#111
20100282668
2010-11-11

FUSED NANOSTRUCTURE MATERIAL

#112
20100212504
2010-08-26

Gas separation membrane

#113
20100202939
2010-08-12

NOVEL NANOPOROUS MATERIALS

#114
20100190093
2010-07-29

Hollow fiber membrane for humidifier and method for manufacturing the same

#115
20100178544
2010-07-15

Polyolefin microporous membrane base for nonaqueous secondary battery separator, method for producing the same, nonaqueous secondary battery separator and nonaqueous secondary battery

#116
20100151334
2010-06-17

Microporous Polyolefin Membrane, Its Production Method, And Battery Separator

#117
20100132546
2010-06-03

Composite structures with porous anodic oxide layers and methods of fabrication

#118
20100122627
2010-05-20

MEMBRANE-BASED SYSTEMS AND METHODS FOR HYDROGEN SEPARATION

#119
20100104805
2010-04-29

Transparent film

#120
20100069596
2010-03-18

MICROPOROUS POLYOLEFIN MEMBRANE, ITS PRODUCTION METHOD, BATTERY SEPARATOR AND BATTERY

#121
20100055534
2010-03-04

Electrolyte membrane, methods of manufacture thereof and articles comprising the same

#122
20100051535
2010-03-04

Crystalline polymer microporous membrane, method for producing the same, and filter for filtration

#123
20100032368
2010-02-11

Method for producing resin porous membrane with adhesive layer, resin porous membrane with adhesive layer, and filter member

#124
20090317631
2009-12-24

Braid-reinforced hollow fiber membrane

#125
20090314708
2009-12-24

Hollow fiber membrane for feeding mixture into hollow space thereof

#126
20090274955
2009-11-05

Multi-layer microporous polyolefin membrane and battery separator

#127
20090269672
2009-10-29

Production method of microporous polyethylene membrane and battery separator

#128
20090266237
2009-10-29

Membrane for Gas Phase Separation and Suitable Method for Production Thereof

#129
20090226814
2009-09-10

Microporous membrane, battery separator and battery

#130
20090208842
2009-08-20

SEPARATOR, METHOD FOR MANUFACTURING SEPARATOR, AND NONAQUEOUS ELECTROLYTE BATTERY

#131
20090208807
2009-08-20

SOLID ELECTROLYTE MEMBRANE, METHOD AND APPARATUS FOR PRODUCING THE SAME, MEMBRANE ELECTRODE ASSEMBLY AND FUEL CELL

#132
20090202874
2009-08-13

Hydrogen purification membranes, components and fuel processing systems containing the same

#133
20090202873
2009-08-13

Hydrogen purification membranes, components and fuel processing systems containing the same

#134
20090193975
2009-08-06

Device for gas separation and method for producing such a system

#135
20090178969
2009-07-16

Polymer separation membrane and process for producing the same

#136
20090131248
2009-05-21

NOVEL NANOPOROUS MATERIALS

#137
20090130525
2009-05-21

Solid electrolyte multilayer membrane, method and apparatus for producing the same, membrane electrode assembly, and fuel cell

#138
20090130517
2009-05-21

SOLID ELECTROLYTE MEMBRANE, METHOD AND APPARATUS OF PRODUCING THE SAME, MEMBRANE ELECTRODE ASSEMBLY, AND FUEL CELL

#139
20090127187
2009-05-21

CRYSTALLINE POLYMER MICROPOROUS FILM, MANUFACTURING METHOD OF THE SAME, AND FILTRATION FILTER

#140
20090123822
2009-05-14

Multi-layer microporous membrane, battery separator and battery

#141
20090117455
2009-05-07

Multi-layer, microporous polyethylene membrane, its production method, and battery separator

#142
20090107908
2009-04-30

Thermally, heat and chemically resistant ultrafiltration polyimide membrane and method for its production

#143
20090087750
2009-04-02

Microporous membrane and manufacturing method

#144
20090000480
2009-01-01

Composite Palladium Membrane Having Long-Term Stability for Hydrogen Separation

#145
20080317953
2008-12-25

MESOPOROUS MATERIALS AND METHODS

#146
20080317946
2008-12-25

FUEL CELL MEMBRANES, GELS, AND METHODS OF FABRICATION

#147
20080241383
2008-10-02

METHOD FOR PRODUCING HYDROGEN GAS SEPARATION MATERIAL

#148
20080210087
2008-09-04

Membranes for separation of carbon dioxide

#149
20080148636
2008-06-26

Catalytic microchannel reformer

#150
20080134895
2008-06-12

Gas separator apparatus

#151
20080113177
2008-05-15

Aromatic polyamide porous film, process for producing the same and secondary battery

#152
20080057388
2008-03-06

Multi-layer, microporous membrane, battery separator and battery

#153
20070264483
2007-11-15

Microporous polyolefin membrane, its production method, and battery separator

#154
20070251389
2007-11-01

COMPOSITE INORGANIC MEMBRANE FOR SEPARATION IN FLUID SYSTEMS

#155
20070251387
2007-11-01

Hydrogen purification membranes, components and fuel processing systems containing the same

#156
20070246366
2007-10-25

Composite Oxygen-Permeable Membrane

#157
20070240566
2007-10-18

Durable pd-based alloy and hydrogen generation membrane thereof

#158
20070221568
2007-09-27

Microporous membrane made of polyolefins

#159
20070178227
2007-08-02

Epitaxial thin films

#160
20070112189
2007-05-17

High silica cds-1 zeolite

#161
20070072949
2007-03-29

Methods and apparatus for hydrogen gas production

#162
20070017861
2007-01-25

Carbon nanocomposite membranes and methods for their fabrication

#163
20070012617
2007-01-18

Method for producing micro-porous film of thermoplastic resin

#164
20070001323
2007-01-04

Multi-layered membrane for air diffuser

#165
20060283323
2006-12-21

Polyoxometalate material for gaseous stream purification at high temperature

#166
20060272499
2006-12-07

Gas filtration media

#167
20060213369
2006-09-28

Hydrogen purification membranes, components and fuel processing systems containing the same

#168
20060213368
2006-09-28

Hydrogen permeable membrane

#169
20060191408
2006-08-31

Composite mixed oxide ionic and electronic conductors for hydrogen separation

#170
20060177643
2006-08-10

Microporous polyethylene film

#171
20060138042
2006-06-29

Heat-resistant film and composite ion-exchange membrane

#172
20060115643
2006-06-01

Hydrogen separator and process for production thereof

#173
20060016332
2006-01-26

Method for fabricating a composite gas separation module

#174
20060011063
2006-01-19

High temperature gas separation membrane suitable for OBIGGS applications

#175
20050145561
2005-07-07

Porous membrane

#176
20050118479
2005-06-02

Electrolyte film and solid polymer fuel cell using the same

#177
20050106439
2005-05-19

Controlled heating and cooling of mixed conducting metal oxide materials

#178
20050072304
2005-04-07

Composite structures of membranes that are selectively permeable to hydrogen and combustible gas processors using same

#179
20050023735
2005-02-03

Method for producing a silicon nitride filter

#180
20050019594
2005-01-27

Epitaxial thin films