CA2253248A1 - Water treatment device with fill-counting cartridge - Google Patents

Water treatment device with fill-counting cartridge

Info

Publication number
CA2253248A1
CA2253248A1 CA002253248A CA2253248A CA2253248A1 CA 2253248 A1 CA2253248 A1 CA 2253248A1 CA 002253248 A CA002253248 A CA 002253248A CA 2253248 A CA2253248 A CA 2253248A CA 2253248 A1 CA2253248 A1 CA 2253248A1
Authority
CA
Canada
Prior art keywords
water treatment
filter cartridge
cartridge
treatment device
fill
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002253248A
Other languages
French (fr)
Other versions
CA2253248C (en
Inventor
John D. Tanner
David J. Emmons
Erik G. Orwoll
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pur Water Purification Products Inc
Original Assignee
Recovery Engineering, Inc.
John D. Tanner
David J. Emmons
Erik G. Orwoll
Pur Water Purification Products, Inc.
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 Recovery Engineering, Inc., John D. Tanner, David J. Emmons, Erik G. Orwoll, Pur Water Purification Products, Inc. filed Critical Recovery Engineering, Inc.
Publication of CA2253248A1 publication Critical patent/CA2253248A1/en
Application granted granted Critical
Publication of CA2253248C publication Critical patent/CA2253248C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C02F1/003—Processes for the treatment of water whereby the filtration technique is of importance using household-type filters for producing potable water, e.g. pitchers, bottles, faucet mounted devices
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C02F2201/006—Cartridges
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/44—Time
    • C02F2209/445—Filter life
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2307/00—Location of water treatment or water treatment device
    • C02F2307/04—Location of water treatment or water treatment device as part of a pitcher or jug

Abstract

A filter cartridge end-of-life mechanism and a filter cartridge assembly for a water treatment device. The end-of-life mechanism comprises a float which is moved along an escapement path each time the device is filled. A counting mechanism connected to the float provides a continuous visual indication of the amount of useful life remaining in the filter cartridge. The cartridge assembly includes a tray detachably connected to a filter cartridge. The tray is positioned beneath the outlet end of the cartridge to remove water treatment particles from the treated water.
CA002253248A 1996-04-30 1997-04-10 Water treatment device with fill-counting cartridge Expired - Fee Related CA2253248C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/640,205 1996-04-30
US08/640,205 US5882507A (en) 1996-04-30 1996-04-30 Water filter cartridge end-of-life mechanism
PCT/US1997/005851 WO1997041066A2 (en) 1996-04-30 1997-04-10 Water treatment device with fill-counting cartridge

Publications (2)

Publication Number Publication Date
CA2253248A1 true CA2253248A1 (en) 1997-11-06
CA2253248C CA2253248C (en) 2004-11-09

Family

ID=24567296

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002253248A Expired - Fee Related CA2253248C (en) 1996-04-30 1997-04-10 Water treatment device with fill-counting cartridge

Country Status (12)

Country Link
US (4) US5882507A (en)
EP (1) EP0900174B1 (en)
JP (1) JP2000508972A (en)
KR (1) KR100463005B1 (en)
CN (1) CN1101784C (en)
BR (1) BR9709441A (en)
CA (1) CA2253248C (en)
DE (1) DE69738959D1 (en)
HK (1) HK1018769A1 (en)
RU (1) RU2185330C2 (en)
TW (1) TW337493B (en)
WO (1) WO1997041066A2 (en)

Families Citing this family (107)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5882507A (en) * 1996-04-30 1999-03-16 Recovery Engineering, Inc. Water filter cartridge end-of-life mechanism
WO1999036115A2 (en) * 1998-01-16 1999-07-22 1263152 Ontario Inc. Indicating device for use with a dispensing device
US6042725A (en) * 1998-04-20 2000-03-28 Matscorp Ltd. Water filter cartridge
US6729330B2 (en) 1998-05-05 2004-05-04 Trudell Medical International Indicating device for aerosol container
US6082358A (en) * 1998-05-05 2000-07-04 1263152 Ontario Inc. Indicating device for aerosol container
US6336453B1 (en) 1999-04-30 2002-01-08 Trudell Medical International Indicating device for aerosol container
US6287456B1 (en) * 1998-10-30 2001-09-11 Kimberly-Clark Worldwide, Inc. Filtration system with filtrate volume indicator
CA2374219A1 (en) * 1999-05-20 2000-11-30 The Procter & Gamble Company Method for removal of nano-sized pathogens from liquids
USD450531S1 (en) 1999-06-29 2001-11-20 Kimberly-Clark Worldwide, Inc. Carafe for filtered water
USD444987S1 (en) 1999-06-29 2001-07-17 Kimberly-Clark Worldwide, Inc. Filtered water carafe
WO2001016029A1 (en) * 1999-08-31 2001-03-08 Kimberly-Clark Worldwide, Inc. Portable purification system
IL132316A0 (en) * 1999-10-11 2001-03-19 Fitoussi Mayer Water purification device
USD444662S1 (en) 1999-11-09 2001-07-10 Kimberly-Clark Worldwide, Inc. Filtered water pitcher
FR2806897B1 (en) * 2000-03-29 2003-05-30 Moulinex Sa HOUSEHOLD APPLIANCE COMPRISING A REMOVABLE WATER TREATMENT CARTRIDGE
EP1354857B1 (en) * 2000-12-25 2008-02-20 Mitsubishi Rayon Co., Ltd. Pitcher type water purifier and purification cartridge for the water purifier
US6745760B2 (en) 2001-05-15 2004-06-08 Trudell Medical International Medicament applicator
US20030034283A1 (en) * 2001-08-17 2003-02-20 Tsataros Eddie J. Fluid treatment device and counter mechanism
US20050279696A1 (en) * 2001-08-23 2005-12-22 Bahm Jeannine R Water filter materials and water filters containing a mixture of microporous and mesoporous carbon particles
US7614507B2 (en) 2001-08-23 2009-11-10 Pur Water Purification Products Inc. Water filter materials, water filters and kits containing particles coated with cationic polymer and processes for using the same
US7614508B2 (en) * 2001-08-23 2009-11-10 Pur Water Purification Products Inc. Water filter materials, water filters and kits containing silver coated particles and processes for using the same
KR100777951B1 (en) 2001-08-23 2007-11-28 더 프록터 앤드 갬블 캄파니 Water filter materials, corresponding water filters and processes for using the same
US20030217967A1 (en) * 2001-08-23 2003-11-27 The Procter & Gamble Company Processes for manufacturing water filter materials and water filters
US7615152B2 (en) 2001-08-23 2009-11-10 Pur Water Purification Products, Inc. Water filter device
ITPD20010234A1 (en) * 2001-10-02 2003-04-02 Struttura Srl FILTER CARAFE FOR WATER PURIFICATION, FOR DOMESTIC USE.
US7004164B2 (en) * 2002-03-21 2006-02-28 Trudell Medical International Indicating device for aerosol container
US6786136B2 (en) * 2002-06-25 2004-09-07 Unilever Bestfoods, North America, Division Of Conopco, Inc. Apparatus for preventing passing off of a brewed beverage
GB0218318D0 (en) 2002-08-07 2002-09-11 Strix Ltd Water treatment apparatus
US7227714B2 (en) * 2003-07-22 2007-06-05 Matsushita Electric Industrial Co., Ltd. Methods for conditional servowriting
US7368412B2 (en) * 2003-09-04 2008-05-06 Battelle Energy Alliance, Llc High capacity adsorption media and method of producing
US7807606B2 (en) * 2003-09-04 2010-10-05 Battelle Energy Alliance, Llc High capacity adsorption media and method of producing
US7882705B2 (en) * 2003-09-05 2011-02-08 Gary Errol Flax Water cooler
US7441665B2 (en) * 2003-10-01 2008-10-28 Halosource, Inc. Water purification cartridge
US7621273B2 (en) 2003-10-28 2009-11-24 Trudell Medical International Indicating device with warning dosage indicator
US7438799B2 (en) * 2003-12-03 2008-10-21 Headwaters R & D, Inc. Portable, refillable water dispenser serving batches of water purified of organic and inorganic pollutants
US7100530B2 (en) * 2003-12-15 2006-09-05 Trudell Medical International, Inc. Dose indicating device
US7378015B2 (en) * 2003-12-18 2008-05-27 The Clorox Company Filtered water enhancements
US7713482B2 (en) * 2003-12-18 2010-05-11 The Clorox Company Control scheme for enhanced filtered water systems
CN1918073B (en) * 2004-02-13 2011-06-15 Pur水纯化产品公司 Water treatment cartridge shutoff
ITPD20040095A1 (en) * 2004-04-08 2004-07-08 Laica Srl REPLACEABLE CARTRIDGE FILTER CARAFE
US7487677B2 (en) * 2004-04-19 2009-02-10 Fook Tin Technologies Ltd. Apparatus and methods for monitoring water consumption and filter usage
US7107838B2 (en) * 2004-04-19 2006-09-19 Fook Tin Technologies Ltd. Apparatus and methods for monitoring water consumption and filter usage
US7316323B2 (en) * 2004-05-06 2008-01-08 The Procter & Gamble Company Filters having improved permeability and virus removal capabilities
US20050258082A1 (en) * 2004-05-24 2005-11-24 Lund Mark T Additive dispensing system and water filtration system
US8893927B2 (en) * 2004-05-24 2014-11-25 Pur Water Purification Products, Inc. Cartridge for an additive dispensing system
US7670479B2 (en) 2004-05-24 2010-03-02 PUR Water Purification, Inc. Fluid container having an additive dispensing system
US8556127B2 (en) 2004-05-24 2013-10-15 Pur Water Purification Products, Inc. Additive dispensing system for a refrigerator
DE102004026167A1 (en) * 2004-05-28 2005-12-22 Brita Gmbh Filter cartridge and device for the filtration of liquids
DE102004026166B3 (en) * 2004-05-28 2006-02-09 Brita Gmbh Filter cartridge and device for the filtration of liquids
US7543582B2 (en) * 2004-09-20 2009-06-09 Trudell Medical International Dose indicating device with display elements attached to container
WO2006077486A1 (en) 2005-01-20 2006-07-27 Trudell Medical International Dispensing device
CA2533609C (en) * 2005-01-21 2011-12-20 Tersano Inc. Drinking water pitcher having a removable upper reservoir
US20060175317A1 (en) * 2005-02-09 2006-08-10 Senno Technology Inc. Lifespan monitoring apparatus and method for a filter of an unboiled water pitcher
US20060226064A1 (en) * 2005-03-23 2006-10-12 Beckman Robert C Multiple cartridge carafe filtration
AU2006232547A1 (en) * 2005-04-01 2006-10-12 Applica Consumer Products, Inc. Water filtration system with improved performance
WO2006126237A2 (en) * 2005-05-25 2006-11-30 Laica S.P.A. Filtering device for filtering water and liquids in general
US20060273000A1 (en) * 2005-06-07 2006-12-07 Chung Liao I Portable water filtering device
US7537695B2 (en) * 2005-10-07 2009-05-26 Pur Water Purification Products, Inc. Water filter incorporating activated carbon particles with surface-grown carbon nanofilaments
US7297283B2 (en) * 2005-12-09 2007-11-20 Yakima Filters, Inc. Container having fluid purification system
JP5222149B2 (en) * 2005-12-23 2013-06-26 ライカ・エス・ピー・エー Filter container for liquid containers
US7987770B2 (en) * 2005-12-30 2011-08-02 General Electric Company Water pitcher and cover therefore
AU2007249638A1 (en) * 2006-03-09 2007-11-22 Fka Distributing Co. D/B/A Homedics, Inc. Water purifier
US8141550B2 (en) 2006-08-01 2012-03-27 Trudell Medical International Dispensing device
ES2390709T3 (en) * 2006-10-08 2012-11-15 Strauss Water Ltd Fluid filter monitoring device
MX2010000825A (en) * 2007-07-31 2010-05-21 Selwyn Corporate Ltd Percolation filtering system.
US20090057241A1 (en) * 2007-08-29 2009-03-05 Phillip Nauta Filter assembly
US8043502B2 (en) 2007-08-29 2011-10-25 Uv Corporation Water pitcher filter
MD3805C2 (en) * 2007-12-26 2009-08-31 ШКИЛЁВ Думитру Владимир Water-purifying filter
US8082873B2 (en) * 2008-05-05 2011-12-27 Trudell Medical International Drive mechanism for an indicating device
US8181591B1 (en) 2008-05-23 2012-05-22 Trudell Medical International Domed actuator for indicating device
ITPD20080152A1 (en) * 2008-05-27 2009-11-28 Laica Spa CARTRIDGE FILTER REPLACEABLE FOR FILTERING SYSTEMS AND FILTERING SYSTEM INCORPORATING THE FILTER
EP2128515A1 (en) * 2008-05-30 2009-12-02 Koninklijke Philips Electronics N.V. A water appliance having a flow control unit and a filter assembly
DE102008002727B4 (en) * 2008-06-27 2020-12-17 Brita Gmbh Device for treating water, in particular a filter device, and cartridge
CN102099090A (en) * 2008-07-21 2011-06-15 3M创新有限公司 Apparatus for dispersing additive into a fluid stream
ES2402241T3 (en) * 2008-10-22 2013-04-30 Trudell Medical International Modular Spray Supply System
US8128820B2 (en) * 2009-02-25 2012-03-06 Mr. Chiaphua Industries Limited UV liquid storage and dispensing device
US8177966B2 (en) * 2009-02-25 2012-05-15 Mr. Chiaphua Industries Limited UV liquid storage and dispensing device
AP2012006131A0 (en) * 2009-07-28 2012-02-29 Tata Chemicals Ltd End of life system for a water filter.
BR112012005295B1 (en) 2009-09-09 2019-07-02 Strauss Water Ltd LIQUID FILTERING DEVICE
EP2512652B1 (en) * 2009-12-14 2018-03-21 Helen of Troy Limited Method for producing an activated carbon coated with cationic polymer
US8664150B2 (en) * 2010-03-16 2014-03-04 Battelle Energy Alliance, Llc Methods of producing adsorption media including a metal oxide
US8961781B2 (en) 2011-09-29 2015-02-24 Brita Lp Filter status techniques adapted for use with a container based filtration device
EP2791061B1 (en) 2011-12-16 2022-06-15 Helen of Troy Limited Gravity filter
US9750834B1 (en) 2011-12-29 2017-09-05 Crosstex International, Inc. Water treatment dispensing apparatus
US10669163B2 (en) 2012-10-24 2020-06-02 Paragon Water Systems Universal filter cartridge
RU2527854C2 (en) * 2012-11-30 2014-09-10 Государственное бюджетное образовательное учреждение высшего прфессионального образования "Кировская государственная медицинская академия" Министерства здравоохранения Российской Федерации (ГБОУ ВПО Кировская ГМА Минздрава России) Vokhmyaninovтs method of service life determination for independent devices for treatment of water fed by gravity (versions)
US20140263014A1 (en) * 2013-03-15 2014-09-18 Revelations Water Technologies Holding Company, Inc. Water Filtration Device
WO2014192011A2 (en) * 2013-04-12 2014-12-04 Tata Chemicals Limited An auto shut off device for a water filter
US10178921B1 (en) * 2013-08-06 2019-01-15 Brita Lp Mechanisms and systems for filter seating
US9737834B1 (en) 2014-05-21 2017-08-22 TST Water, INC. Water filter cartridge with slanted nozzles
CA2950318C (en) * 2014-08-29 2019-01-15 Kx Technologies Llc Reverse flow carafe filter cartridge
TWI551337B (en) * 2014-12-30 2016-10-01 Solution purification filter
US10046981B2 (en) 2015-03-23 2018-08-14 Strauss Water Ltd. Water filter and assembly thereof
US9452373B1 (en) 2015-04-29 2016-09-27 Rocker Scientific Co., Ltd. Filter funnel for connection to flask
USD775711S1 (en) 2015-05-13 2017-01-03 Helen Of Troy Limited Water filter pitcher
USD770010S1 (en) 2015-05-13 2016-10-25 Helen Of Troy Limited Water filter pitcher
USD773013S1 (en) 2015-05-13 2016-11-29 Helen Of Troy Limited Water filter pitcher
USD774622S1 (en) 2015-05-13 2016-12-20 Helen Of Troy Limited Water filter pitcher
US20180008916A1 (en) * 2016-07-07 2018-01-11 Haier Us Appliance Solutions, Inc. Performance indication device for a filter
CA3079417A1 (en) 2017-10-24 2019-05-02 Crosstex International, Inc. Water treatment dispensing apparatus
USD858690S1 (en) 2017-10-24 2019-09-03 Crosstex International, Inc. Water treatment cartridge
USD846069S1 (en) * 2017-11-09 2019-04-16 Qingdao Ecopure Filter Co., Ltd. Water filter
US11872506B2 (en) * 2018-07-07 2024-01-16 Paragon Water Systems, Inc. Water filter cartridge having an air vent
US11484386B2 (en) 2018-08-30 2022-11-01 Crosstex International, Inc. Dental instrument water supply filter
RU188338U1 (en) * 2018-10-10 2019-04-08 Павел Павлович Горелов Device for electrochemical activation of water
USD1016969S1 (en) 2019-04-24 2024-03-05 Helen Of Troy Limited Filter cartridge
EP3838848A1 (en) 2019-12-17 2021-06-23 Koninklijke Philips N.V. Device comprising filter with-end-of life mechanism
EP3907188A1 (en) 2020-05-08 2021-11-10 Brita GmbH Drainage plate for fluids

Family Cites Families (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US150866A (en) * 1874-05-12 Improvement in water coolers and filters
US498967A (en) * 1893-06-06 William b
US165512A (en) * 1875-07-13 Improvement in filters
US815102A (en) * 1905-02-23 1906-03-13 James Edward Lea Liquid-plow measurer and recorder.
US871253A (en) * 1906-02-20 1907-11-19 Charles W Bauman Measuring-faucet.
US1148943A (en) * 1914-11-09 1915-08-03 Earle Young Gasolene-meter.
US1208882A (en) * 1916-04-27 1916-12-19 William Mcgie Young Domestic water-bag.
US1432522A (en) * 1920-08-18 1922-10-17 Barnes Orange Perry Cooler and water filter
US1775355A (en) * 1929-02-16 1930-09-09 John G Peters Water filter
US2669707A (en) * 1950-04-29 1954-02-16 Bowser Inc Filter signal
US3687289A (en) * 1970-09-04 1972-08-29 Ecodyne Corp Water softener system
DE3413948A1 (en) * 1984-04-13 1985-10-24 Heinz 6204 Taunusstein Hankammer DEVICE FOR WATER PURIFICATION
US4698164A (en) * 1985-07-29 1987-10-06 Kinetico, Inc. Filter apparatus
DE8525643U1 (en) * 1985-10-05 1987-01-22 Alhaeuser, Erich, 5412 Ransbach-Baumbach, De
US4650571A (en) * 1985-11-29 1987-03-17 H. R. Black Company Automatic indexer for industrial filters
GB2197647B (en) * 1986-08-12 1990-03-07 Precision Engineering Co Improvements in or relating to water treatment devices
DE3737476C2 (en) * 1987-11-05 1994-12-01 Christoph Goetz & Co Teehandel Device for cleaning a liquid
DE3810441C2 (en) * 1988-03-26 1994-09-08 Brita Wasserfilter Water purification device with an inlet funnel
DE3814683A1 (en) * 1988-04-30 1989-11-09 Brita Wasserfilter SCREEN COVER FOR A CLEANING INSERT IN A WATER TREATMENT DEVICE WITH A HOLLOW TUBE
US4918426A (en) * 1988-05-02 1990-04-17 Amway Corporation Method and apparatus for sensing fluid flow volume to indicate end of filter life
JPH0723597Y2 (en) * 1989-07-20 1995-05-31 株式会社荏原製作所 Self-priming pump device
US5089144B1 (en) * 1989-12-08 1996-11-12 Nartron Corp Filter condition indicator having moveable sensor and aggregate flow counter
US4998228A (en) * 1990-02-09 1991-03-05 Douglas R. Eger Drinking water filter
JPH0655307B2 (en) * 1990-03-30 1994-07-27 松下電器産業株式会社 Filter
US5065901A (en) * 1990-04-09 1991-11-19 Brane Earl P Apparatus for monitoring a flow of fluid through a filter medium
US5139666A (en) * 1991-01-04 1992-08-18 Domotechnica Canada, Inc. Bottle and filter
US5057821A (en) * 1991-02-19 1991-10-15 Card Gary C Filter sentry apparatus
US5128034A (en) * 1991-03-21 1992-07-07 Amway Corporation Pressure vessel for housing a water filter
JP3258353B2 (en) * 1991-11-14 2002-02-18 三菱レイヨン株式会社 Household water purifier with life meter
US5190643A (en) * 1992-01-10 1993-03-02 Mr. Coffee, Inc. Water treatment device having means to count times used and limit useage
US5236578A (en) * 1992-07-07 1993-08-17 American Home Water Products Corporation Filter life indicator for water purification system using magnetically actuated switch
US5328597A (en) * 1992-07-27 1994-07-12 The Clorox Corporation Electronic monitoring unit for monitoring number of uses of cartridge
EP0655938B1 (en) * 1992-08-14 1996-12-27 William Levene Limited Filter jug
JPH0677879U (en) * 1993-04-12 1994-11-01 峻 小山 Water purifier
CA2098127C (en) * 1993-06-10 1997-03-18 Brian Feeney Air inlet valve for water cooler
US5457665A (en) * 1994-03-10 1995-10-10 Innova Pure Water Inc. Elapsed time indicator
US5435909A (en) * 1994-03-14 1995-07-25 Hydrotechnology, Inc. A California Corp. Water quality monitor for a water purification system
US5562824A (en) * 1994-10-12 1996-10-08 Wtc/Ecomaster Corporation Gravity water purifier
US5536394A (en) * 1994-11-17 1996-07-16 Recovery Engineering, Inc. End of life mechanism for water treatment cartridge
US5536396A (en) * 1995-07-24 1996-07-16 Valuedirect Filtration Systems, Inc. Water filtration kit
US5765844A (en) * 1995-11-06 1998-06-16 Trw Inc. Linkage assembly
US5882507A (en) 1996-04-30 1999-03-16 Recovery Engineering, Inc. Water filter cartridge end-of-life mechanism
US6103114A (en) * 1998-01-09 2000-08-15 Recovery Engineering, Inc. Pour-through water treatment carafe

Also Published As

Publication number Publication date
HK1018769A1 (en) 2000-01-07
KR100463005B1 (en) 2005-04-06
US6649045B2 (en) 2003-11-18
DE69738959D1 (en) 2008-10-16
US20040173507A1 (en) 2004-09-09
WO1997041066A3 (en) 1998-03-12
US20020134715A1 (en) 2002-09-26
CA2253248C (en) 2004-11-09
WO1997041066A2 (en) 1997-11-06
BR9709441A (en) 2000-01-11
US6423224B1 (en) 2002-07-23
CN1101784C (en) 2003-02-19
EP0900174B1 (en) 2008-09-03
US6881327B2 (en) 2005-04-19
CN1216970A (en) 1999-05-19
TW337493B (en) 1998-08-01
EP0900174A2 (en) 1999-03-10
KR20000065122A (en) 2000-11-06
JP2000508972A (en) 2000-07-18
RU2185330C2 (en) 2002-07-20
US5882507A (en) 1999-03-16

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MKLA Lapsed

Effective date: 20130410