Patents-Review.com
ClassID:

29931 ⎘

B01D67/0027 - CPC Classification

Classification description:

Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus; Organic membrane manufacture by inducing porosity into non porous precursor membranes by mechanical treatment, e.g. pore-stretching by stretching

Recent Application in this class:
#1
20260077316
2026-03-19

Microporous Hollow Fiber Webs and Methods of Making Same

 #2
20260070024
2026-03-12

Asymmetric Hollow Fiber Membrane

 #3
20260061373
2026-03-05

Block Copolymer Templated Crazing for Membrane Separation

 #4
20250319445
2025-10-16

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

 #5
20250161883
2025-05-22

POROUS HOLLOW FIBER MEMBRANE AND METHOD FOR PRODUCING POROUS HOLLOW FIBER MEMBRANE

 #6
20250108340
2025-04-03

POROUS MEMBRANE, POROUS MEMBRANE LAMINATE, AND METHOD OF MANUFACTURING POROUS MEMBRANE

 #7
20250074032
2025-03-06

BIAXIALLY ORIENTED MICROPOROUS MEMBRANE

 #8
20250025840
2025-01-23

High-Efficiency Degassing Polyolefin Hollow Fiber Membrane and Preparation Therefor and Use Thereof

 #9
20240382909
2024-11-21

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

 #10
20240367114
2024-11-07

MEMBRANE WITH REACTED NETWORKS

 #11
20240207790
2024-06-27

CLOSED LOOP AZEOTROPE-BASED SOLVENT EXTRACTION AND RECOVERY METHOD IN THE PRODUCTION OF MICROPOROUS MEMBRANES

 #12
20240189778
2024-06-13

SEPARATION MEMBRANE AND MANUFACTURING METHOD THEREFOR

 #13
20240158589
2024-05-16

HEAT STABILIZED MEMBRANE

 #14
20240139689
2024-05-02

Microporous polyolefin membranes from bespoke solvents

 #15
20240097277
2024-03-21

METHOD OF MAKING A MICROPOROUS MATERIAL

 #16
20240042394
2024-02-08

MICROPOROUS POLYOLEFIN MEMBRANES FROM BESPOKE SOLVENTS

 #17
20240024825
2024-01-25

POLYOLEFIN RESIN COMPOSITION FOR POROUS FILM

 #18
20230381742
2023-11-30

POROUS MEMBRANE INCLUDING PERFLUOROALKOXY ALKANE (PFA)-BASED MELT-EXTRUDED FILM AND HAVING PORES CONTROLLED BY BIAXIAL STRETCHING, AND MANUFACTURING METHOD THEREFOR

 #19
20230356155
2023-11-09

TRANSPARENT REUSABLE ULTRAHIGH MOLECULAR WEIGHT POLYETHYLENE AIR FILTER

 #20
20230347299
2023-11-02

COMPOSITE FLUOROPOLYMER MEMBRANES HAVING DIFFERENT SURFACE ENERGIES

 #21
20230347297
2023-11-02

POLYAMIDE POROUS MEMBRANE AND METHOD FOR PRODUCING SAME

 #22
20230264147
2023-08-24

NANOPARTICLE FILTRATION MEMBRANE AND THE MANUFACTURING METHOD THEREOF

 #23
20230211296
2023-07-06

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

 #24
20230191336
2023-06-22

Method for preparing block copolymer hollow fiber membrane by melt spinning-stretching and selective swelling

 #25
20230182085
2023-06-15

POROUS MEMBRANE LAMINATE, FILTER ELEMENT AND METHOD OF MANUFACTURING POROUS MEMBRANE LAMINATE

 #26
20230155247
2023-05-18

Method of making a microporous material

 #27
20230138216
2023-05-04

Filter membrane and method for making the same

 #28
20230102962
2023-03-30

MICROPOROUS MEMBRANES, BATTERY SEPARATORS, COATED SEPARATORS, BATTERIES, AND RELATED METHODS

 #29
20230081107
2023-03-16

Lightweight expanded polytetrafluoroethylene membranes having high instrinsic strength and optical transparency

 #30
20230019449
2023-01-19

STRETCHED POROUS POLYTETRAFLUOROETHYLENE MEMBRANE, AIR-PERMEABLE MEDIUM USING THE SAME, AND FILTER MEMBER USING THE SAME

 #31
20230015482
2023-01-19

POROUS POLYTETRAFLUOROETHYLENE MEMBRANE HAVING A MACRO-TEXTURED SURFACE AND METHOD OF MAKING THE SAME

 #32
20220410078
2022-12-29

HOLLOW FIBER MEMBRANES WITH POLYDIORGANOSILOXANE POLYOXAMIDE COPOLYMER SKIN LAYER AND METHODS OF MAKING AND USING THE SAME

 #33
20220355525
2022-11-10

PTFE porous membrane with a high strength and small pore size

 #34
20220241731
2022-08-04

Block Copolymer Templated Crazing for Membrane Separation

 #35
20220234008
2022-07-28

Highly oriented expanded polytetrafluoroethylene with superior stiffness

 #36
20210379537
2021-12-09

Hollow-fiber membrane and hollow-fiber membrane module

 #37
20210346848
2021-11-11

Unsintered expanded polytetrafluoroethylene composite membranes having dimensional stability

 #38
20210331120
2021-10-28

Hollow fiber membranes with nucleating agent and methods of making and using the same

 #39
20210331119
2021-10-28

Porous membrane for water treatment and method for preparing the same

 #40
20210260536
2021-08-26

Micro or nano porous membrane, manufacturing method of same, porous resin membrane complex, and filter element

 #41
20210218108
2021-07-15

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

 #42
20210205764
2021-07-08

Asymmetric polytetrafluoroethylene composite having a macro-textured surface and method for making the same

 #43
20210187428
2021-06-24

Uniformly structured high-permeability microporous membrane for filtering and method for preparing the same, flat filtering element and gas filtering article

 #44
20210162706
2021-06-03

Biaxially oriented microporous membrane

 #45
20210126319
2021-04-29

NEW OR IMPROVED MICROPOROUS MEMBRANES, BATTERY SEPARATORS, COATED SEPARATORS, BATTERIES, AND RELATED METHODS

 #46
20210043903
2021-02-11

MICROPOROUS MEMBRANES, BATTERY SEPARATORS, AND METHODS FOR MAKING AND USING THE SAME

 #47
20210039053
2021-02-11

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

 #48
20200360870
2020-11-19

Method for synthesis of flexible multifunctional high-voidage ultrathin PE membranes

 #49
20200360866
2020-11-19

Composite porous membrane and preparation method therefor and use thereof

 #50
20200298184
2020-09-24

Method for preparing porous membrane of fluorine-based resin

 #51
20200246756
2020-08-06

Porous hollow-fiber membrane and production process therefor

 #52
20200001241
2020-01-02

DRAWN SILICONE MEMBRANES

 #53
20190322820
2019-10-24

Processes for forming fluoropolymer articles

 #54
20190262778
2019-08-29

Fabrication of Microfilters and Nanofilters and Their Applications

 #55
20190252664
2019-08-15

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

 #56
20190247805
2019-08-15

POROUS MEMBRANE AND METHOD FOR MANUFACTURING POROUS MEMBRANE

 #57
20190224631
2019-07-25

Acrylonitrile-based membrane with low thrombogenicity

 #58
20190168168
2019-06-06

SUPERHYDROPHOBIC MICROFILTRATION MEMBRANE FOR MEMBRANE DISTILLATION, FILTRATION MODULE FOR MEMBRANE DISTILLATION COMPRISING THE SAME, AND METHOD FOR MANUFACTURING THE SAME

 #59
20190168167
2019-06-06

Composite porous hollow fiber membrane, production method for composite porous hollow fiber membrane, composite porous hollow fiber membrane module, and operation method for composite porous hollow fiber membrane module

 #60
20190070565
2019-03-07

Porous hollow fiber membrane

 #61
20190015786
2019-01-17

Hollow fiber membrane module and method for operating same

 #62
20180369757
2018-12-27

Porous hollow fiber membrane

 #63
20180326361
2018-11-15

FILTRATION MATERIAL HAVING ePTFE AND METHOD OF MAKING

 #64
20180291530
2018-10-11

Multi-stage drawing technique for forming porous fibers

 #65
20180221828
2018-08-09

Acrylonitrile-based membrane with improved performance

 #66
20180085713
2018-03-29

Hollow fiber membrane and method of preparing the same

 #67
20180079114
2018-03-22

Film-stretching apparatus and method of producing film

 #68
20180079113
2018-03-22

Film-stretching apparatus and method of producing film

 #69
20180029276
2018-02-01

Method of making a microporous material

 #70
20170266865
2017-09-21

BIAXIALLY ORIENTED POROUS MEMBRANES, COMPOSITES, AND METHODS OF MANUFACTURE AND USE

 #71
20170216832
2017-08-03

Ion exchange membrane and production process therefor

 #72
20170214021
2017-07-27

Microporous sheet product and methods for making and using the same

 #73
20170165893
2017-06-15

PRODUCTION METHOD OF MICROPOROUS PLASTIC FILM

 #74
20170151534
2017-06-01

SUBSTRATE FOR LIQUID FILTER AND METHOD FOR PRODUCING THE SAME

 #75
20170149038
2017-05-25

Polyolefin multilayer microporous membrane and battery separator

 #76
20170129789
2017-05-11

Hydrocarbon waste stream purification processes using microporous materials having filtration and adsorption properties

 #77
20170092920
2017-03-30

Polyolefin microporous membrane and production method thereof

 #78
20170028362
2017-02-02

Hydrophilic porous polytetrafluoroethylene membrane (II)

 #79
20170002156
2017-01-05

BIAXIALLY-STRETCHED POROUS MEMBRANE

 #80
20160367947
2016-12-22

Asymmetric polytetrafluoroethylene composite having a macro-textured surface and method for making the same

 #81
20160325235
2016-11-10

METHOD FOR PRODUCING POROUS POLYTETRAFLUOROETHYLENE MEMBRANE, METHOD FOR PRODUCING WATERPROOF GAS-PERMEABLE MEMBER, AND METHOD FOR PRODUCING AIR FILTER MEDIUM

 #82
20160257049
2016-09-08

Device for biaxially-oriented stretching polytetrafluoroethylene hollow fiber membranes and method thereof

 #83
20160141574
2016-05-19

Method of manufacturing separator for electrochemical device and separator for electrochemical device manufactured thereby

 #84
20160122484
2016-05-05

Polyolefin film for use in packaging

 #85
20160118639
2016-04-28

Multilayer, microporous polyolefin membrane, and production method thereof

 #86
20160115291
2016-04-28

Polyolefin material having a low density

 #87
20160114071
2016-04-28

Absorbent article containing a porous polyolefin film

 #88
20160096152
2016-04-07

Substrate for liquid filter

 #89
20160096149
2016-04-07

NANOCOMPOSITE MIXED-MATRIX MEMBRANE

 #90
20160082398
2016-03-24

Substrate for liquid filter

 #91
20160082397
2016-03-24

Substrate for liquid filter

 #92
20160068643
2016-03-10

Nanoscale β-nucleating agent for polypropylene

 #93
20160032069
2016-02-04

Porous articles formed from polyparaxylylene and processes for forming the same

 #94
20160030974
2016-02-04

Manufacturing method of porous multilayered polyolefin

 #95
20150376360
2015-12-31

MODIFICATION OF DRAWN FILM

 #96
20150353694
2015-12-10

Method for producing porous polytetrafluoroethylene film and porous polytetrafluoroethylene film

 #97
20150337098
2015-11-26

Porous polytetrafluoroethylene film and method for producing same

 #98
20150298436
2015-10-22

Gas separation membrane

 #99
20150270521
2015-09-24

Process for producing polyethylene porous film and polyethylene porous film

 #100
20150238909
2015-08-27

Porous polytetrafluoroethylene membrane, method for producing the same, gas-permeable membrane and ventilation member using the same

 #101
20150165386
2015-06-18

Black porous polytetrafluoroethylene membrane, method for producing same, gas-permeable membrane and ventilation member using same

 #102
20150079392
2015-03-19

FLUORORESIN MICROPOROUS MEMBRANE, METHOD FOR PRODUCING THE SAME, AND FILTER ELEMENT USING THE FLUORORESIN MICROPOROUS MEMBRANE

 #103
20150069675
2015-03-12

Manufacturing methods for a porous fluororesin composite

 #104
20150050464
2015-02-19

Porous polytetrafluoroethylene membrane and waterproof air-permeable member

 #105
20150037653
2015-02-05

Multilayered microporous polyolefin film

 #106
20140361457
2014-12-11

Process for producing microporous polyolefin film

 #107
20140332998
2014-11-13

Methods of producing and using microporous membranes

 #108
20140302374
2014-10-09

Biaxially oriented microporous membrane

 #109
20140287322
2014-09-25

Biaxially oriented microporous membrane

 #110
20140246356
2014-09-04

Fluid emulsion purification processes using microporous materials having filtration and adsorption properties

 #111
20140232033
2014-08-21

Porous Membrane

 #112
20140134518
2014-05-15

Microporous PVDF films

 #113
20140130470
2014-05-15

Porous polytetrafluoroethylene membrane and air filter medium

 #114
20140120286
2014-05-01

Fluoropolymer articles having a high surface roughness and high coarseness

 #115
20140102984
2014-04-17

Fuel filter monitor for fuel streams

 #116
20140083929
2014-03-27

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

 #117
20130319924
2013-12-05

ASYMMETRIC ePTFE MEMBRANE

 #118
20130291729
2013-11-07

Gas separation membrane

 #119
20130267621
2013-10-10

Polytetrafluoroethylene mixture

 #120
20130252067
2013-09-26

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

 #121
20130171499
2013-07-04

Porous membrane and method for manufacturing the same

 #122
20130092618
2013-04-18

SEPARATION MEMBRANE, WATER TREATMENT UNIT AND WATER TREATMENT APPARATUS

 #123
20130068689
2013-03-21

Membrane distillation modules using oleophobically and antimicrobially treated microporous membranes

 #124
20130045412
2013-02-21

Microporous membranes and methods for producing and using such membranes

 #125
20130032530
2013-02-07

Composite semipermeable membrane

 #126
20130005845
2013-01-03

Microporous film

 #127
20130000180
2013-01-03

Fuel deoxygenation using surface-modified porous membranes

 #128
20120288618
2012-11-15

Gas diffusion electrode material and production method thereof

 #129
20120276367
2012-11-01

CAST FILMS, MICROPOROUS MEMBRANES, AND METHOD OF PREPARATION THEREOF

 #130
20120202905
2012-08-09

Nanoscale β-nucleating agent for polypropylene

 #131
20120201988
2012-08-09

Thin wall expandable polymer tubes having improved axial and radial strength, and a method of manufacturing thereof

 #132
20120183946
2012-07-19

Fabrication of microfilters and nanofilters and their applications

 #133
20120175299
2012-07-12

HOLLOW FIBER MEMBRANES AND RELATED APPARATUSES AND METHODS

 #134
20120160764
2012-06-28

POROUS VINYLIDENE FLUORIDE RESIN MEMBRANE AND PROCESS FOR PRODUCING SAME

 #135
20120135289
2012-05-31

POLYOLEFIN MICROPOROUS MEMBRANE AND SEPARATOR FOR LITHIUM ION BATTERY

 #136
20120088095
2012-04-12

Modification of drawn film

 #137
20120058302
2012-03-08

FABRICATION OF ANTI-FOULING SURFACES COMPRISING A MICRO- OR NANO-PATTERNED COATING

 #138
20120012521
2012-01-19

VINYLIDENE FLUORIDE RESIN HOLLOW FIBER POROUS MEMBRANE AND PROCESS FOR PRODUCING SAME

 #139
20110290716
2011-12-01

Vinylidene fluoride resin porous film and manufacturing method therefor

 #140
20110274961
2011-11-10

MICROPOROUS MEMBRANES AND METHODS FOR PRODUCING AND USING SUCH MEMBRANES

 #141
20110272345
2011-11-10

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

 #142
20110269900
2011-11-03

Polypropylene resin composition for use in formation of microporous membrane

 #143
20110268959
2011-11-03

POROUS MEMBRANE

 #144
20110254186
2011-10-20

PTFE membrane

 #145
20110236764
2011-09-29

MICROPOROUS MEMBRANES AND METHODS FOR PRODUCING AND USING SUCH MEMBRANES

 #146
20110223486
2011-09-15

BIAXIALLY ORIENTED POROUS MEMBRANES, COMPOSITES, AND METHODS OF MANUFACTURE AND USE

 #147
20110223407
2011-09-15

Method of producing microporous polymer membrane and microporous polymer membrane produced by the method

 #148
20110192283
2011-08-11

Polytetrafluoroethylene porous membrane, method for producing same, and waterproof air-permeable filter

 #149
20110169201
2011-07-14

METHODS OF MAKING A MIXTURE FOR A PTFE MEMBRANE WITH INORGANIC MATERIALS, AND COMPOSITIONS RELATED THERETO

 #150
20110117439
2011-05-19

MICROPOROUS MEMBRANES AND METHODS FOR PRODUCING AND USING SUCH MEMBRANES

 #151
20110104472
2011-05-05

Porous membrane

 #152
20110049044
2011-03-03

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

 #153
20110014459
2011-01-20

Expandable polymer membrane and tubes, and a method of manufacturing thereof

 #154
20110000846
2011-01-06

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

 #155
20100313753
2010-12-16

Polyethylene membrane and method of its production

 #156
20100295511
2010-11-25

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

 #157
20100236410
2010-09-23

Layered filtration membrane and methods of making same

 #158
20100230843
2010-09-16

Microfiltration membrane with improved filtration properties

 #159
20100221522
2010-09-02

Microporous membranes having a relatively large average pore size and the methods of making the same

 #160
20100212504
2010-08-26

Gas separation membrane

 #161
20100203310
2010-08-12

FLUORORESIN THIN FILM, FLUORORESIN COMPOSITE, POROUS FLUORORESIN COMPOSITE, MANUFACTURING METHODS THEREOF, AND SEPERATION MEMBRANE ELEMENT

 #162
20100151334
2010-06-17

Microporous Polyolefin Membrane, Its Production Method, And Battery Separator

 #163
20100112199
2010-05-06

Method of transferring nanoparticles using a microporous article having metallic nanoparticle coating

 #164
20100108494
2010-05-06

Microporous article having metallic nanoparticle coating

 #165
20100069596
2010-03-18

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

 #166
20100051535
2010-03-04

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

 #167
20100028779
2010-02-04

Porous Polyimide Membrane, Battery Separator, Battery, and Method

 #168
20100018852
2010-01-28

Process for Producing a Porous Track Membrane

 #169
20100006497
2010-01-14

Expanded PFTE membrane and method of making

 #170
20090305127
2009-12-10

Microporous material and a method of making same

 #171
20090277141
2009-11-12

Porous polytetrafluoroethylene membrane and method of producing the same, and filter medium

 #172
20090274955
2009-11-05

Multi-layer microporous polyolefin membrane and battery separator

 #173
20090269656
2009-10-29

Microporous polyethylene membrane, its production method, and battery separator

 #174
20090264550
2009-10-22

MANUFACTURING METHOD OF A MEMBRANE AND A MEMBRANE THEREOF, FOR EMULSIFICATION

 #175
20090263591
2009-10-22

Multi-component composite film method for preparing the same

 #176
20090261034
2009-10-22

Vinylidene Fluoride Resin Hollow Fiber Porous Membrane and Method for Production Thereof

 #177
20090230585
2009-09-17

Methods of making a mixture for a PTFE membrane with metal oxides, and compositions related thereto

 #178
20090226814
2009-09-10

Microporous membrane, battery separator and battery

 #179
20090212469
2009-08-27

Methods of making a mixture for a PTFE membrane with inorganic materials, and compositions related thereto

 #180
20090208842
2009-08-20

SEPARATOR, METHOD FOR MANUFACTURING SEPARATOR, AND NONAQUEOUS ELECTROLYTE BATTERY

 #181
20090184037
2009-07-23

MEMBRANE STRUCTURE FOR GAS SEPARATION

 #182
20090159526
2009-06-25

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

 #183
20090146334
2009-06-11

METHOD FOR PRODUCING MICROPOROUS POLYOLEFIN MEMBRANE AND MICROPOROUS MEMBRANE

 #184
20090131544
2009-05-21

Extrusion of a thermoplastic polymer bearing acid ionic groupings

 #185
20090127733
2009-05-21

METHOD FOR PRODUCING MICROPOROUS THERMOPLASTIC RESIN MEMBRANE

 #186
20090127187
2009-05-21

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

 #187
20090117433
2009-05-07

Gas diffusion electrode material and production method thereof

 #188
20090098449
2009-04-16

Microporous polyolefin membrane, and method of producing the same

 #189
20090098341
2009-04-16

MICROPOROUS POLYOLEFIN MEMBRANE AND METHOD FOR PRODUCING THE SAME

 #190
20090087750
2009-04-02

Microporous membrane and manufacturing method

 #191
20090081543
2009-03-26

Microporous polyolefin membrane and manufacturing method

 #192
20090079102
2009-03-26

METHOD FOR PRODUCING MICROPOROUS POLYOLEFIN MEMBRANE

 #193
20090071339
2009-03-19

Method of manufacturing porous polytetrafluoroethylene membrane, filter medium, and filter unit

 #194
20090061205
2009-03-05

Crystalline polymer microporous film, manufacturing method of the same, and filtration filter

 #195
20090057222
2009-03-05

MEMBRANE CARD AND METHOD FOR THE PRODUCTION AND USE THEREOF

 #196
20090042104
2009-02-12

Multi-component composite film method for preparing the same

 #197
20090032470
2009-02-05

Porous PTFE materials and articles produced therefrom

 #198
20090023825
2009-01-22

Microporous polyethylene film and method of producing the same

 #199
20090008816
2009-01-08

METHOD FOR PRODUCING MICROPOROUS POLYOLEFIN MEMBRANE AND MICROPOROUS MEMBRANE

 #200
20080315447
2008-12-25

Method of making a microporous material

 #201
20080300332
2008-12-04

MICROPOROUS MATERIAL AND A METHOD OF MAKING SAME

 #202
20080237116
2008-10-02

Porous PTFE Materials and Articles Produced Therefrom

 #203
20080197072
2008-08-21

Microfiltration Membrane With Improved Filtration Properties

 #204
20080156722
2008-07-03

Porous hollow-yarn membrane of vinylidene fluoride resin

 #205
20080134884
2008-06-12

Porous gas permeable material for gas separation

 #206
20080113242
2008-05-15

Microporous PVDF films

 #207
20080078718
2008-04-03

Porous Membrane for Water Treatment and Method of Manufacturing the Same

 #208
20080067126
2008-03-20

METHOD FOR MEMBRANE FILTRATION PURIFICATION OF SUSPENDED WATER

 #209
20080057389
2008-03-06

Microporous membrane, battery separator and battery

 #210
20080057388
2008-03-06

Multi-layer, microporous membrane, battery separator and battery

 #211
20080053892
2008-03-06

Porous PTFE Materials and Articles Produced Therefrom

 #212
20080011676
2008-01-17

Hydrophilic body and method of manufacture

 #213
20070264483
2007-11-15

Microporous polyolefin membrane, its production method, and battery separator

 #214
20070241050
2007-10-18

Porous water filtration membrane of vinylidene fluoride resin hollow fiber and process for production thereof

 #215
20070221568
2007-09-27

Microporous membrane made of polyolefins

 #216
20070216057
2007-09-20

Poly(ethylene chlorotrifluoroethylene) membranes

 #217
20070215540
2007-09-20

Hollow-fiber porous water filtration membrane of vinylidene fluoride resin and process for producing the same

 #218
20070196638
2007-08-23

Biaxially oriented microporous membrane

 #219
20070157812
2007-07-12

Gas transfer membrane

 #220
20070148552
2007-06-28

Microporous membrane made from polyolefin

 #221
20070138682
2007-06-21

Microporous film of semicrystalline polymers and method for preparing the same

 #222
20070138681
2007-06-21

Microporoous film of semicrystalline polymer and method for preparing the same

 #223
20070090051
2007-04-26

Hollow fiber membrane and method of producing the same

 #224
20070084794
2007-04-19

Porous membrane and method for manufacturing the same

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20070080109
2007-04-12

MANUFACTURING METHOD OF UNIAXIALLY DRAWN POROUS POLYTETRAFLUOROETHYLENE MEMBRANE

 #226
20070039872
2007-02-22

Vinylidene fluoride based resin porous hollow yarn and method for production thereof

 #227
20070012624
2007-01-18

Porous PTFE materials and articles produced therefrom

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20070012617
2007-01-18

Method for producing micro-porous film of thermoplastic resin

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20060251874
2006-11-09

Microporous article having metallic nanoparticle coating

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20060188786
2006-08-24

Separator for secondary battery and porous film made of polyolefin blend and process for preparing the same

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20060178480
2006-08-10

Porous membrane of vinylidene fluoride resin and process for producing the same

 #232
20060177643
2006-08-10

Microporous polyethylene film

 #233
20060157893
2006-07-20

PTFE membrane

 #234
20060148915
2006-07-06

Microporous materials and methods of making

 #235
20060121269
2006-06-08

Method of making microporous material

 #236
20060103055
2006-05-18

Polyolefin microporous membrane

 #237
20060055075
2006-03-16

Porous film and separator for battery using the same

 #238
20060009538
2006-01-12

Microporous polyethylene film and method of producing the same

 #239
20060008636
2006-01-12

Microporous polyethylene film and method of producing the same

 #240
20050258101
2005-11-24

Hollow fiber membrane and method of producing the same

 #241
20050252883
2005-11-17

Process for producing a porous track membrane

 #242
20050202163
2005-09-15

Method of making a composite microporous membrane

 #243
20050145107
2005-07-07

Process for producing polyolefin membrane with integrally asymmetrical structure

 #244
20050098913
2005-05-12

Microporous polyolefin membrane, and method of producing the same

 #245
20050098494
2005-05-12

Poly(ethylene chlorotrifluoroethylene) membranes

 #246
20050087487
2005-04-28

Porous polyolefin membrane

 #247
20050082717
2005-04-21

Methods of making stretched filtering membranes and modules

 #248
20050058823
2005-03-17

Method of producing a microporous polyolefin membrane

 #249
20050058821
2005-03-17

Microporous PVDF films

 #250
20050019665
2005-01-27

Polyolefin microporous membrane and method of evaluating the same

 #251
20050003033
2005-01-06

Extruder with condenser