ATE219140T1 - Filtervorrichtung - Google Patents

Filtervorrichtung

Info

Publication number
ATE219140T1
ATE219140T1 AT96908752T AT96908752T ATE219140T1 AT E219140 T1 ATE219140 T1 AT E219140T1 AT 96908752 T AT96908752 T AT 96908752T AT 96908752 T AT96908752 T AT 96908752T AT E219140 T1 ATE219140 T1 AT E219140T1
Authority
AT
Austria
Prior art keywords
filter device
hepatocytes
entrapped
single cells
hollow fibers
Prior art date
Application number
AT96908752T
Other languages
English (en)
Inventor
Wei-Shou Hu
Frank Bernard Cerra
Original Assignee
Univ Minnesota
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univ Minnesota filed Critical Univ Minnesota
Application granted granted Critical
Publication of ATE219140T1 publication Critical patent/ATE219140T1/de

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M21/00—Bioreactors or fermenters specially adapted for specific uses
    • C12M21/08—Bioreactors or fermenters specially adapted for specific uses for producing artificial tissue or for ex-vivo cultivation of tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/022—Artificial gland structures using bioreactors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
    • A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
    • A61M1/1621—Constructional aspects thereof
    • A61M1/1623—Disposition or location of membranes relative to fluids
    • A61M1/1625—Dialyser of the outside perfusion type, i.e. blood flow outside hollow membrane fibres or tubes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/34—Filtering material out of the blood by passing it through a membrane, i.e. hemofiltration or diafiltration
    • A61M1/3472—Filtering material out of the blood by passing it through a membrane, i.e. hemofiltration or diafiltration with treatment of the filtrate
    • A61M1/3475—Filtering material out of the blood by passing it through a membrane, i.e. hemofiltration or diafiltration with treatment of the filtrate with filtrate treatment agent in the same enclosure as the membrane
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/34—Filtering material out of the blood by passing it through a membrane, i.e. hemofiltration or diafiltration
    • A61M1/3472—Filtering material out of the blood by passing it through a membrane, i.e. hemofiltration or diafiltration with treatment of the filtrate
    • A61M1/3486—Biological, chemical treatment, e.g. chemical precipitation; treatment by absorbents
    • A61M1/3489—Biological, chemical treatment, e.g. chemical precipitation; treatment by absorbents by biological cells, e.g. bioreactor
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M25/00—Means for supporting, enclosing or fixing the microorganisms, e.g. immunocoatings
    • C12M25/10—Hollow fibers or tubes
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
    • C12M29/16—Hollow fibers
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N5/00—Undifferentiated human, animal or plant cells, e.g. cell lines; Tissues; Cultivation or maintenance thereof; Culture media therefor
    • C12N5/06—Animal cells or tissues; Human cells or tissues
    • C12N5/0602—Vertebrate cells
    • C12N5/067—Hepatocytes
    • C12N5/0671—Three-dimensional culture, tissue culture or organ culture; Encapsulated cells
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K35/00—Medicinal preparations containing materials or reaction products thereof with undetermined constitution
    • A61K35/12—Materials from mammals; Compositions comprising non-specified tissues or cells; Compositions comprising non-embryonic stem cells; Genetically modified cells
    • A61K2035/126—Immunoprotecting barriers, e.g. jackets, diffusion chambers
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N2500/00—Specific components of cell culture medium
    • C12N2500/02—Atmosphere, e.g. low oxygen conditions
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N2500/00—Specific components of cell culture medium
    • C12N2500/90—Serum-free medium, which may still contain naturally-sourced components
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N2510/00—Genetically modified cells
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N2533/00—Supports or coatings for cell culture, characterised by material
    • C12N2533/30—Synthetic polymers
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N2533/00—Supports or coatings for cell culture, characterised by material
    • C12N2533/50—Proteins
    • C12N2533/54—Collagen; Gelatin

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Zoology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Organic Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Genetics & Genomics (AREA)
  • Biotechnology (AREA)
  • Public Health (AREA)
  • Vascular Medicine (AREA)
  • General Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Veterinary Medicine (AREA)
  • Microbiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Anesthesiology (AREA)
  • Hematology (AREA)
  • Sustainable Development (AREA)
  • Cell Biology (AREA)
  • Molecular Biology (AREA)
  • Urology & Nephrology (AREA)
  • Transplantation (AREA)
  • Cardiology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Immunology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Emergency Medicine (AREA)
  • Gastroenterology & Hepatology (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
  • Surgical Instruments (AREA)
  • Centrifugal Separators (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Materials For Medical Uses (AREA)
AT96908752T 1995-03-31 1996-03-21 Filtervorrichtung ATE219140T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/414,499 US5595909A (en) 1988-05-23 1995-03-31 Filter device
PCT/US1996/003316 WO1996030492A1 (en) 1995-03-31 1996-03-21 Filter device

Publications (1)

Publication Number Publication Date
ATE219140T1 true ATE219140T1 (de) 2002-06-15

Family

ID=23641714

Family Applications (1)

Application Number Title Priority Date Filing Date
AT96908752T ATE219140T1 (de) 1995-03-31 1996-03-21 Filtervorrichtung

Country Status (7)

Country Link
US (1) US5595909A (de)
EP (1) EP0817833B1 (de)
JP (1) JP3692147B2 (de)
AT (1) ATE219140T1 (de)
CA (1) CA2215071A1 (de)
DE (1) DE69621790T2 (de)
WO (1) WO1996030492A1 (de)

Families Citing this family (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5605835A (en) * 1988-05-23 1997-02-25 Regents Of The University Of Minnesota Bioreactor device with application as a bioartificial liver
CA2279996A1 (en) * 1997-01-16 1998-07-16 Yissum Research Development Company Of The Hebrew University In Jerusale M A device and method for performing a biological modification of a fluid
US5955353A (en) * 1997-05-22 1999-09-21 Excorp Medical, Inc. Hollow fiber bioreactor with an extrafilament flow plug
US6653105B2 (en) * 1998-02-11 2003-11-25 Vitagen, Inc. Clonal cells and cell lines derived from C3A cells and methods of making and using them
DE69903800T2 (de) 1998-03-18 2003-10-02 Massachusetts Institute Of Technology, Cambridge Vaskularisierte perfundierte anordnungen für mikrogewebe und mikroorgane
US6068775A (en) * 1998-04-13 2000-05-30 Circe Biomedical, Inc. Removal of agent from cell suspension
EP0953633A1 (de) * 1998-04-28 1999-11-03 Livercell L.L.C. Zellkulturverfahren und Medium zur Herstellung von vermehrungsfähige, normale, differenzierte Humane Leberzellen
JP4222658B2 (ja) * 1998-06-23 2009-02-12 テルモ株式会社 細胞支持基材、培養装置および液体処理装置
US6080178A (en) * 1999-04-20 2000-06-27 Meglin; Allen J. Vena cava filter
US6436120B1 (en) 1999-04-20 2002-08-20 Allen J. Meglin Vena cava filter
DE10023505A1 (de) * 2000-05-13 2001-11-22 Fraunhofer Ges Forschung Reaktormodul mit Kapillarmembranen
AU2002213197A1 (en) * 2000-10-12 2002-04-22 Massachusetts General Hospital Plasma supplement and use in liver assist systems
JP4077722B2 (ja) * 2000-10-12 2008-04-23 リナル・ソリューションズ・インコーポレーテッド 体外流体処理時における体液の流れを制御する装置及び方法
US7033498B2 (en) * 2000-11-28 2006-04-25 Renal Solutions, Inc. Cartridges useful in cleaning dialysis solutions
US6627164B1 (en) * 2000-11-28 2003-09-30 Renal Solutions, Inc. Sodium zirconium carbonate and zirconium basic carbonate and methods of making the same
ATE458039T1 (de) 2001-07-06 2010-03-15 Inst Nat Sante Rech Med Menschliche hepatomazellinien, deren gewinung und deren verwendungen
GB0121986D0 (en) * 2001-09-11 2001-10-31 Isis Innovation Method and structure for growing living organic tissue
US20040058309A1 (en) * 2001-10-12 2004-03-25 Junji Washizu Plasma supplement and use in liver assist systems
US6878283B2 (en) * 2001-11-28 2005-04-12 Renal Solutions, Inc. Filter cartridge assemblies and methods for filtering fluids
WO2003080649A2 (en) * 2002-03-20 2003-10-02 Regents Of The University Of Minnesota Induction of hepatocyte proliferation in vitro by inhibition of cell cycle inhibitors
US7160719B2 (en) * 2002-06-07 2007-01-09 Mayo Foundation For Medical Education And Research Bioartificial liver system
US7998101B2 (en) * 2003-07-28 2011-08-16 Renal Solutions, Inc. Devices and methods for body fluid flow control in extracorporeal fluid treatment
US7056286B2 (en) * 2003-11-12 2006-06-06 Adrian Ravenscroft Medical device anchor and delivery system
CA2557046A1 (en) 2004-03-05 2005-10-13 John Crowley Process for cell culturing by continuous perfusion and alternating tangential flow
CN101061213B (zh) * 2004-05-19 2012-12-19 麻省理工学院 灌注的三维细胞/组织疾病模型
EP1743522A1 (de) * 2005-07-13 2007-01-17 ID-Lelystad, Instituut voor Dierhouderij en Diergezondheid B.V. Tiermodelle für Typ-II Diabetes und X-Syndrom
EP1913126B1 (de) 2005-08-12 2019-09-25 Clemson University Research Foundation Kokultur-bioreaktor-system
KR101685246B1 (ko) 2006-07-14 2016-12-09 디피엑스 홀딩스 비.브이. 개선된 세포 배양 방법
US20100185156A1 (en) * 2007-06-13 2010-07-22 Pervasis Therapeutics, Inc. Methods and Devices for Minimally-Invasive Delivery of Cell-Containing Flowable Compositions
WO2009108654A2 (en) * 2008-02-25 2009-09-03 Clemson University Differential pressure pump system
CN102421467B (zh) 2009-03-13 2015-04-22 梅约医学教育与研究基金会 生物人工肝
WO2011056981A2 (en) * 2009-11-04 2011-05-12 Nitinol Devices And Components, Inc. Alternating circumferential bridge stent design and methods for use thereof
WO2012047308A1 (en) * 2010-10-08 2012-04-12 Nitinol Devices And Components, Inc. Alternating circumferential bridge stent design and methods for use thereof
WO2012048276A2 (en) 2010-10-08 2012-04-12 Caridianbct, Inc. Customizable methods and systems of growing and harvesting cells in a hollow fiber bioreactor system
WO2015073913A1 (en) 2013-11-16 2015-05-21 Terumo Bct, Inc. Expanding cells in a bioreactor
WO2015148704A1 (en) 2014-03-25 2015-10-01 Terumo Bct, Inc. Passive replacement of media
EP3198006B1 (de) 2014-09-26 2021-03-24 Terumo BCT, Inc. Geplante fütterung
WO2017004592A1 (en) 2015-07-02 2017-01-05 Terumo Bct, Inc. Cell growth with mechanical stimuli
US11965175B2 (en) 2016-05-25 2024-04-23 Terumo Bct, Inc. Cell expansion
US11685883B2 (en) 2016-06-07 2023-06-27 Terumo Bct, Inc. Methods and systems for coating a cell growth surface
US11104874B2 (en) 2016-06-07 2021-08-31 Terumo Bct, Inc. Coating a bioreactor
WO2018029970A1 (ja) * 2016-08-10 2018-02-15 Cyberdyne株式会社 細胞の立体構造化方法及び立体構造化システム
US11624046B2 (en) 2017-03-31 2023-04-11 Terumo Bct, Inc. Cell expansion
CN117247899A (zh) 2017-03-31 2023-12-19 泰尔茂比司特公司 细胞扩增
US12234441B2 (en) 2017-03-31 2025-02-25 Terumo Bct, Inc. Cell expansion
WO2019244044A1 (en) * 2018-06-20 2019-12-26 Novoheart Limited Ex vivo methods of screening for, and characterizing, cardiac therapeutics using preloaded cardiac tissues
EP3705564A1 (de) 2019-03-06 2020-09-09 Cherry Biotech SAS Verfahren und vorrichtung zur umgebungskontrolle in biologischen proben, die in zellkulturschalen enthalten sind
EP4314244B1 (de) 2021-03-23 2025-07-23 Terumo BCT, Inc. Zellerfassung und -erweiterung
US12209689B2 (en) 2022-02-28 2025-01-28 Terumo Kabushiki Kaisha Multiple-tube pinch valve assembly
USD1099116S1 (en) 2022-09-01 2025-10-21 Terumo Bct, Inc. Display screen or portion thereof with a graphical user interface for displaying cell culture process steps and measurements of an associated bioreactor device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0131822B1 (ko) * 1988-05-23 1998-04-11 죤 에프. 튜은트 바이오 반응기 장치
JPH0271755A (ja) * 1988-09-07 1990-03-12 Terumo Corp 人工肝臓装置
JPH0292270A (ja) * 1988-09-30 1990-04-03 Terumo Corp 細胞培養装置
DE4206585C2 (de) * 1992-03-03 1994-11-24 Augustinus Dr Med Bader Vorrichtung zur Massenkultur von Zellen
DE4322746A1 (de) * 1993-07-08 1995-01-12 Augustinus Dr Med Bader Verfahren und Vorrichtung zur Behandlung von Zellkulturen

Also Published As

Publication number Publication date
JP3692147B2 (ja) 2005-09-07
JPH11502712A (ja) 1999-03-09
DE69621790T2 (de) 2003-02-20
EP0817833A4 (de) 1998-11-04
EP0817833A1 (de) 1998-01-14
WO1996030492A1 (en) 1996-10-03
EP0817833B1 (de) 2002-06-12
US5595909A (en) 1997-01-21
DE69621790D1 (de) 2002-07-18
CA2215071A1 (en) 1996-10-03

Similar Documents

Publication Publication Date Title
DE69621790D1 (de) Filtervorrichtung
DE59505730D1 (de) Polymerelektrolyt-membran-brennstoffzelle
KR890700699A (ko) 폴리프로필렌 다공질막 및 그의 제조방법
AU6743287A (en) Membrane cell culture device
DE69322573D1 (de) Zellkultureinsatz
ITTO930942A0 (it) Membrane porose rivestite gas-permeabili.
DE69319983D1 (de) Zellkultureinsatz
FI951456L (fi) Rei'itettyjä soluikkunoita sisältävä solupolymeeri ja menetelmä sen valmistamiseksi
AU532530B2 (en) Polymeric diffusion matrix
BE891620A (fr) Adhesifs anaerobies, leur preparation et leur utilisation
DE69519855D1 (de) Ionenleitende membran enthaltende brennstoffzelle
DE59605850D1 (de) Lithium-ionen-zelle
DE69735551D1 (de) Protonenloser dünn-elektrolytefilm, immobilisierter flüssigfilmleiter und polymerzelle
DE59306542D1 (de) Elektrodenmembran
AU542380B2 (en) Porous glass membrane
DE69507690D1 (de) Absorbierende biokatalysator enthaltende poröse perlen
DE69025215D1 (de) Elektrochemische Feststoffzelle
DE69311792D1 (de) Hochdruck elektrochemische zelle afbau
DE69637390D1 (de) Poröser film
DE69634735D1 (de) Brennstoffzelle
GB2104832B (en) Mofifying porous polymeric membrane
KR900007928A (ko) 다공성 중합체 물질
FI892824A7 (fi) Orgaaninen polymeerimateriaali ja siitä valmistettu ioninvaihtomembraani
JPS5640156A (en) Porous membrane and its manufacture
BR9610196A (pt) Pilha eletroquímica

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties