CA2303944A1 - Method and apparatus for improved mixing in fluids - Google Patents

Method and apparatus for improved mixing in fluids Download PDF

Info

Publication number
CA2303944A1
CA2303944A1 CA002303944A CA2303944A CA2303944A1 CA 2303944 A1 CA2303944 A1 CA 2303944A1 CA 002303944 A CA002303944 A CA 002303944A CA 2303944 A CA2303944 A CA 2303944A CA 2303944 A1 CA2303944 A1 CA 2303944A1
Authority
CA
Canada
Prior art keywords
fluid flow
fluid
mixing
present
counter
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
CA002303944A
Other languages
French (fr)
Other versions
CA2303944C (en
Inventor
Donald E. Cormack
Keith G. Bircher
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.)
Trojan Technologies Inc Canada
Original Assignee
Calgon Carbon Corporation
Donald E. Cormack
Keith G. Bircher
Trojan Technologies 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 Calgon Carbon Corporation, Donald E. Cormack, Keith G. Bircher, Trojan Technologies Inc. filed Critical Calgon Carbon Corporation
Publication of CA2303944A1 publication Critical patent/CA2303944A1/en
Application granted granted Critical
Publication of CA2303944C publication Critical patent/CA2303944C/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
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • C02F1/325—Irradiation devices or lamp constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/10—Mixing by creating a vortex flow, e.g. by tangential introduction of flow components
    • B01F25/103—Mixing by creating a vortex flow, e.g. by tangential introduction of flow components with additional mixing means other than vortex mixers, e.g. the vortex chamber being positioned in another mixing chamber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/4316—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being flat pieces of material, e.g. intermeshing, fixed to the wall or fixed on a central rod
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F2025/91—Direction of flow or arrangement of feed and discharge openings
    • B01F2025/913—Vortex flow, i.e. flow spiraling in a tangential direction and moving in an axial direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/43197—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor characterised by the mounting of the baffles or obstructions
    • B01F25/431972—Mounted on an axial support member, e.g. a rod or bar
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/82—Combinations of dissimilar mixers
    • 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
    • C02F2201/32—Details relating to UV-irradiation devices
    • C02F2201/322—Lamp arrangement
    • C02F2201/3227—Units with two or more lamps
    • 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
    • C02F2201/32—Details relating to UV-irradiation devices
    • C02F2201/324—Lamp cleaning installations, e.g. brushes
    • 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
    • C02F2201/32—Details relating to UV-irradiation devices
    • C02F2201/328—Having flow diverters (baffles)

Abstract

The present invention pro-vides an apparatus and method for accomplishing fluid disinfec-tion by passing fluid flow through a uniform array (3B) of ultraviolet lamps having cross sections per-pendicular to the direction of fluid flow that define channels (8) for the fluid flow. Positioned next to the end of each lamp (5) at the entrance of the fluid flow are tri-angular shaped delta wings hav-ing surfaces inclined at an an-gle to the direction of fluid flow.
The interaction of the fluid flow with each delta wing creates a pair of vortices (10) that rotate in the same direction or in direc-tions opposed to each other. The counter-rotating vortices (10) rein-force each other to minimize dissi-pation of their mixing strength as they move down the channel (8).
Due to these co-reinforcing prop-erties these counter-rotating vor-tices (10) more promote efficient mixing of the fluid which is re-quired to achieve more efficient use of the light in the UV
disin-fection systems, along with heat and/or mass transfer in chemical reactions. Although the present invention is described in particularity as embodied in a UV reactor system, it will be understood by those skilled in the art that the present invention has equal applicability to other types of arrayed flow systems in which increased fluid mixing is desired.
CA002303944A 1997-09-19 1998-09-21 Method and apparatus for improved mixing in fluids Expired - Fee Related CA2303944C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/933,573 US6015229A (en) 1997-09-19 1997-09-19 Method and apparatus for improved mixing in fluids
US08/933,573 1997-09-19
PCT/US1998/019650 WO1999013975A1 (en) 1997-09-19 1998-09-21 Method and apparatus for improved mixing in fluids

Publications (2)

Publication Number Publication Date
CA2303944A1 true CA2303944A1 (en) 1999-03-25
CA2303944C CA2303944C (en) 2007-05-29

Family

ID=25464194

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002303944A Expired - Fee Related CA2303944C (en) 1997-09-19 1998-09-21 Method and apparatus for improved mixing in fluids

Country Status (13)

Country Link
US (2) US6015229A (en)
EP (1) EP1024888B1 (en)
JP (1) JP4664496B2 (en)
KR (1) KR100533438B1 (en)
CN (1) CN1148252C (en)
AT (1) ATE258079T1 (en)
BR (1) BR9812824A (en)
CA (1) CA2303944C (en)
DE (1) DE69821253T2 (en)
ES (1) ES2215319T3 (en)
NO (1) NO20001427L (en)
NZ (1) NZ503461A (en)
WO (1) WO1999013975A1 (en)

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5846437A (en) * 1997-01-03 1998-12-08 Trojan Technologies Inc. Increasing turbulent mixing in a UV system
EP1289889B1 (en) 2000-06-06 2008-07-30 Trojan Technologies Inc. Fluid mixing device
US6958213B2 (en) * 2000-12-12 2005-10-25 Alligator Bioscience Ab Method for in vitro molecular evolution of protein function
WO2002048050A2 (en) * 2000-12-15 2002-06-20 Trojan Technologies Inc. Fluid treatment system and radiation source module for use therein
US6886973B2 (en) * 2001-01-03 2005-05-03 Basic Resources, Inc. Gas stream vortex mixing system
WO2002072480A1 (en) * 2001-03-12 2002-09-19 Photoscience Japan Corporation Uv-irradiation water purification apparatus with turbulent flow
WO2003024873A1 (en) * 2001-09-18 2003-03-27 Photoscience Japan Corporation Ultraviolet water treatment apparatus with dome-shaped baffle
EP1497229B1 (en) * 2002-04-01 2020-02-12 Ondeo Degremont, Inc. Apparatus for irradiating fluids with uv
NZ518658A (en) * 2002-04-30 2004-10-29 Lionel Evans Method of water treatment
US7105858B2 (en) * 2002-08-26 2006-09-12 Onscreen Technologies Electronic assembly/system with reduced cost, mass, and volume and increased efficiency and power density
WO2004037301A2 (en) * 2002-10-24 2004-05-06 Georgia Tech Research Corporation Systems and methods for disinfection
US7507370B2 (en) * 2002-10-24 2009-03-24 Georgia Tech Research Corporation Systems and methods for disinfection
DE10255457A1 (en) * 2002-11-28 2004-06-17 Wedeco Ag Water Technology UV disinfection device
US6951617B2 (en) * 2003-09-16 2005-10-04 Purepise Technologies, Inc. Method and apparatus for controlling flow profile to match lamp fluence profile
US7385204B2 (en) * 2003-10-29 2008-06-10 Calgon Carbon Corporation Fluid treatment device
EP1737501A4 (en) 2004-03-12 2009-09-02 Trojan Techn Inc Fluid treatment system
DE502005000780D1 (en) * 2005-01-17 2007-07-12 Balcke Duerr Gmbh Apparatus and method for mixing a fluid flow in a flow channel
EP1754530A1 (en) * 2005-08-18 2007-02-21 StaMixCo Technology AG Mixing element for the inversion and mixture of flowing materials in a flow channel, kit and mixer comprising such mixing elements, and method for mixing a flowing material in a flow channel
JP2007144386A (en) 2005-11-02 2007-06-14 Toshiba Corp Ultraviolet irradiation water-treatment apparatus
US10343939B2 (en) 2006-06-06 2019-07-09 Evoqua Water Technologies Llc Ultraviolet light activated oxidation process for the reduction of organic carbon in semiconductor process water
DE102006052922B4 (en) * 2006-11-08 2012-02-23 Itt Manufacturing Enterprises, Inc. Apparatus and method for improving the mixing in the UV disinfection of liquids
US8696192B2 (en) 2007-05-10 2014-04-15 Fluid-Quip, Inc. Multiple helical vortex baffle
GB0711746D0 (en) * 2007-06-19 2007-07-25 Snowball Malcolm R Fluid disinfection apparatus and method
US7862728B2 (en) 2007-09-27 2011-01-04 Water Of Life, Llc. Ultraviolet water purification system
US8529770B2 (en) * 2007-09-27 2013-09-10 Water Of Life, Llc. Self-contained UV-C purification system
JP2010017661A (en) * 2008-07-11 2010-01-28 Hitachi Zosen Corp Apparatus for accelerating diffusion of fluid
CN102099105A (en) 2008-07-15 2011-06-15 特洛伊科技有限公司 Fluid treatment system
CN102227256B (en) * 2008-11-26 2014-08-27 卡尔冈碳素公司 Method and apparatus for use of mixing elements in wastewater/ recycle water uv disinfection system
GB0907338D0 (en) 2009-04-28 2009-06-10 Snowball Malcolm R Fluid disinfector
GB2494448A (en) * 2011-09-09 2013-03-13 Steriflow Ltd Ultra-violet liquid steriliser
DE102012008732A1 (en) * 2012-05-04 2013-11-07 Xylem Water Solutions Herford GmbH Mixing device for UV water treatment plants with open channel
US9630863B2 (en) 2014-03-28 2017-04-25 Neptune-Benson, Llc Advanced oxidation system and method in a UV reactor with electrode
CN105621527A (en) * 2014-11-07 2016-06-01 广东海川科技有限公司 Installation seat and ultraviolet disinfection equipment
US11161762B2 (en) 2015-01-21 2021-11-02 Evoqua Water Technologies Llc Advanced oxidation process for ex-situ groundwater remediation
US10494281B2 (en) 2015-01-21 2019-12-03 Evoqua Water Technologies Llc Advanced oxidation process for ex-situ groundwater remediation
US11390539B2 (en) 2015-12-23 2022-07-19 Novolabs Limited Liquid treatment method and apparatus
SE540413C2 (en) 2016-05-25 2018-09-11 Wallenius Water Innovation Ab A UV light liquid treatment system
CN109247542B (en) * 2017-07-13 2023-07-11 四川农业大学 Quick pickling device
US11193514B2 (en) * 2018-09-10 2021-12-07 The Lee Company Fluid flow resistor
CN111450748A (en) * 2020-04-09 2020-07-28 上海交通大学 Method for realizing passive enhanced heat transfer and solute mixing in micro-channel
KR20230107657A (en) 2020-11-14 2023-07-17 마크 안소니 인터내셔날 에스알엘 How to sterilize fermented beverages
CN113209881A (en) * 2021-05-13 2021-08-06 河南省肿瘤医院 Clinical pharmacy dispensing device of portable

Family Cites Families (70)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR421296A (en) * 1910-10-10 1910-12-17 Marius Paul Otto Apparatus for sterilizing water by ultraviolet rays
FR16092E (en) * 1911-04-11 1912-11-14 Paul Gabriel Triquet Apparatus for the industrial sterilization of water by means of electric mercury lamps with quartz tubes, immersed in water
US2413704A (en) * 1944-12-04 1947-01-07 Art Metal Company Ultraviolet sterilizer
US2670439A (en) * 1950-07-05 1954-02-23 Hanovia Chemical & Mfg Co Apparatus for irradiating liquids
DE855521C (en) * 1950-12-28 1952-11-13 Siemens Ag Method and device for treating, preferably cleaning, sewage and other fluids
US3061721A (en) * 1960-01-19 1962-10-30 Brenner Al Automatic tube cleaning device
US3182193A (en) * 1962-01-03 1965-05-04 Ultra Dynamics Corp Electronically monitored liquid purification or sterilizing system
US3182191A (en) * 1963-02-14 1965-05-04 Puretest Water Purifier Co Water purifying apparatus with an automatically actuated wiper for the ultra-violet source
US3140054A (en) * 1963-04-25 1964-07-07 Oharenko Vladimir Safety inspection light
US3337194A (en) * 1965-08-09 1967-08-22 Phillips Petroleum Co In-line blender
US3462597A (en) * 1966-07-29 1969-08-19 Ultra Dynamics Corp Ultraviolet fluid purifier having manually operable wiper means
US3456107A (en) * 1967-05-16 1969-07-15 Aquacare Intern Ltd Water sterilizing apparatus
US3637342A (en) * 1969-05-07 1972-01-25 Louis P Veloz Sterilization of fluids by ultraviolet radiation
US3837800A (en) * 1971-05-06 1974-09-24 Meltzer H Method and apparatus for purifying fluids
DE2300273C3 (en) * 1972-01-07 1982-05-06 Toray Industries, Inc., Tokyo Device for wastewater treatment
DE2213658C3 (en) * 1972-03-21 1974-08-15 Katadyn Produkte Ag, Wallisellen (Schweiz) Water disinfection system
US3948772A (en) * 1975-04-16 1976-04-06 Sidney Ellner Split stream ultraviolet purification device
US4103167A (en) * 1976-08-16 1978-07-25 Sidney Ellner Ultraviolet liquid purification system
US4255663A (en) * 1977-03-24 1981-03-10 Lewis James H Disposable liquid sterilizer unit
US4204956A (en) * 1978-10-02 1980-05-27 Flatow Robert E Water purification system
US4367410A (en) * 1979-07-09 1983-01-04 Pure Water Systems, Inc. Waste purification apparatus and method
US4296328A (en) * 1980-02-11 1981-10-20 Regan Michael D Apparatus for producing high purity water
US4400270A (en) * 1980-04-18 1983-08-23 Adco Aerospace, Inc. Ultraviolet apparatus for disinfection and sterilization of fluids
DE3043239C2 (en) * 1980-11-15 1985-11-28 Balcke-Dürr AG, 4030 Ratingen Method and device for mixing at least two fluid partial flows
US4490777A (en) * 1981-06-25 1984-12-25 Tanner Stephen E Selective color illumination device for electronic drafting tables
US4435744A (en) * 1981-08-10 1984-03-06 Pauluhn Electric Manufacturing Co., Inc. Explosion-proof fluorescent light fixture
US4471225A (en) * 1981-11-09 1984-09-11 Adco Aerospace Ultraviolet apparatus for disinfection and sterilization of fluids
CA1163086A (en) * 1981-11-30 1984-03-06 Jan Maarschalkerweerd Ultraviolet fluid purifying device
US4467206A (en) * 1981-12-14 1984-08-21 Extracorporeal Medical Specialties, Inc. Method and apparatus for the irradiation of fluids
NL8300115A (en) * 1983-01-13 1984-08-01 Philips Nv RADIATION DEVICE.
FI841491A (en) * 1983-04-25 1984-10-26 Christian Lumpp ANORDING FOR COMMANDING REFLECTION OF INFRARED ELLER ULTRAVIOLET STRAOLNING.
US4535247A (en) * 1983-07-11 1985-08-13 Kurtz Mark E Water sterilization system
DE3441535A1 (en) * 1984-11-14 1986-06-26 Erich 7632 Friesenheim Rasche Apparatus for water sterilisation by ultraviolet radiation
US4700101A (en) * 1985-02-07 1987-10-13 Sidney Ellner Elongated tubular lamp construction
JPS61230203A (en) * 1985-03-29 1986-10-14 東芝ライテック株式会社 Lamp unit
US4757205A (en) * 1986-06-10 1988-07-12 Arlat Inc. Ultraviolet water treatment apparatus
US4755292A (en) * 1986-08-11 1988-07-05 Merriam Theodore D Portable ultraviolet water sterilizer
US4767932A (en) * 1986-09-26 1988-08-30 Ultraviolet Purification System, Inc. Ultraviolet purification device
IT1195844B (en) * 1986-11-21 1988-10-27 Ultraviolet Technology Italia METHOD AND DEVICE FOR STERILIZATION OF FLUIDS
US4929088A (en) * 1988-07-27 1990-05-29 Vortab Corporation Static fluid flow mixing apparatus
US4968489A (en) * 1988-09-13 1990-11-06 Peroxidation Systems, Inc. UV lamp enclosure sleeve
US4872980A (en) * 1988-09-13 1989-10-10 Trojan Technologies, Inc. Fluid purification device
US4952376A (en) * 1988-09-13 1990-08-28 Peroxidation Systems, Inc. Oxidation chamber
US4897246A (en) * 1988-09-13 1990-01-30 Peroxidation Systems, Inc. Oxidation chamber
US5006244A (en) * 1988-09-13 1991-04-09 Trojan Technologies, Inc. Fluid purification device
US5227140A (en) * 1990-04-13 1993-07-13 Peroxidation Systems, Inc. Modular self-cleaning oxidation chamber
US5019256A (en) * 1990-10-19 1991-05-28 Fischer & Porter Company Ultraviolet lamp rack assembly
US5124131A (en) * 1990-12-10 1992-06-23 Ultraviolet Energy Generators, Inc. Compact high-throughput ultraviolet processing chamber
DE4123161A1 (en) * 1991-07-12 1993-01-14 Siemens Ag STATIC MIXER
EP0526393B1 (en) * 1991-07-30 1996-08-28 Sulzer Chemtech AG mixing-in device
EP0546989B1 (en) * 1991-12-10 1995-11-15 Sulzer Chemtech AG Static mixing element with guiding faces
WO1994002680A1 (en) * 1992-07-24 1994-02-03 Kamyr, Inc. Hydrocyclone photo-reactor
US5332388A (en) * 1992-12-04 1994-07-26 Infilco Degremont, Inc. Ultraviolet disinfection module
US5418370A (en) * 1993-03-05 1995-05-23 Trojan Technologies, Inc. Fluid treatment system and process
EP0619134B1 (en) * 1993-04-08 1996-12-18 ABB Management AG Mixing receptacle
US5266215A (en) * 1993-04-27 1993-11-30 Rolf Engelhard Water purification unit
US5514871A (en) * 1994-01-13 1996-05-07 Trojan Technologies Optical radiation sensor device
US5471063A (en) * 1994-01-13 1995-11-28 Trojan Technologies, Inc. Fluid disinfection system
DE4417139C2 (en) * 1994-05-17 1996-04-18 Rudolf Wiesmann Device and system for disinfecting flowing liquids and using the same
EP0697374B1 (en) * 1994-08-15 2000-03-22 Sulzer Chemtech AG Ultraviolet fluid treatment device
US5504335A (en) * 1994-10-17 1996-04-02 Trojan Technologies, Inc. Fluid treatment device and method
US5539209A (en) * 1994-10-17 1996-07-23 Trojan Technologies Inc. Method of cleaning fouling materials from a radiation module
US5540848A (en) * 1994-12-13 1996-07-30 Vortex Corporation Filter retainer for water purification unit
US5683589A (en) * 1995-03-13 1997-11-04 University Of Western Ontario Photocatalytic reactor
ES2142060T3 (en) * 1995-05-09 2000-04-01 Labatt Brewing Co Ltd STATIC FLUID FLOW MIXING DEVICE.
US5696380A (en) * 1995-05-09 1997-12-09 Labatt Brewing Company Limited Flow-through photo-chemical reactor
DE19544816A1 (en) * 1995-12-01 1997-06-05 Abb Research Ltd Mixing device
GB9607843D0 (en) * 1996-04-16 1996-06-19 Pet Mate Ltd Water treatment
JPH1043753A (en) * 1996-08-08 1998-02-17 Chiyoda Kohan Kk Liquid purifying device
US5846437A (en) * 1997-01-03 1998-12-08 Trojan Technologies Inc. Increasing turbulent mixing in a UV system

Also Published As

Publication number Publication date
US6420715B1 (en) 2002-07-16
NO20001427D0 (en) 2000-03-17
JP2001516637A (en) 2001-10-02
DE69821253D1 (en) 2004-02-26
EP1024888A1 (en) 2000-08-09
DE69821253T2 (en) 2004-11-18
KR100533438B1 (en) 2005-12-06
CN1276743A (en) 2000-12-13
BR9812824A (en) 2000-08-08
US6015229A (en) 2000-01-18
ATE258079T1 (en) 2004-02-15
NZ503461A (en) 2003-01-31
EP1024888B1 (en) 2004-01-21
WO1999013975A1 (en) 1999-03-25
ES2215319T3 (en) 2004-10-01
KR20010030631A (en) 2001-04-16
CA2303944C (en) 2007-05-29
JP4664496B2 (en) 2011-04-06
NO20001427L (en) 2000-05-18
CN1148252C (en) 2004-05-05

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Effective date: 20170921