WO2001023074A1 - Device for impinging a flowing gas with a reactant - Google Patents
Device for impinging a flowing gas with a reactant Download PDFInfo
- Publication number
- WO2001023074A1 WO2001023074A1 PCT/DE2000/003195 DE0003195W WO0123074A1 WO 2001023074 A1 WO2001023074 A1 WO 2001023074A1 DE 0003195 W DE0003195 W DE 0003195W WO 0123074 A1 WO0123074 A1 WO 0123074A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- reducing agent
- flowing gas
- openings
- reactant
- throttle
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/90—Injecting reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
- B01D53/185—Liquid distributors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/79—Injecting reactants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/03—Adding substances to exhaust gases the substance being hydrocarbons, e.g. engine fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/08—Adding substances to exhaust gases with prior mixing of the substances with a gas, e.g. air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Definitions
- the present invention relates to a device for acting on a flowing gas, in particular an exhaust gas, with a reaction agent, in particular a reducing agent, according to the preamble of patent claim 1.
- Exhaust gas is metered in.
- the reducing agent is in an injection valve Pre-mixing chamber injected, which opens into the exhaust pipe leading to the reduction catalytic converter.
- the premixing chamber forms a reducing agent line opening into the exhaust pipe.
- a device for the aftertreatment of exhaust gases from an internal combustion engine in which to promote the operation of a downstream reduction catalytic converter, fuel is metered in as a reducing agent via a metering valve and introduced into the exhaust valve via an evaporation device.
- the evaporator is one with one
- Metal sleeve provided with a glow plug with a front opening through which evaporated reducing agent is introduced into the exhaust gas stream.
- the evaporation of the reducing agent is supported thermally, but this solution is technically complex and requires a high energy requirement for heating and evaporation of the reducing agent.
- reaction or reducing agents By means of the device according to the invention, it is possible to apply reaction or reducing agents to a flowing gas, in particular an exhaust gas, more uniformly than conventional solutions.
- the more uniform distribution of the reaction or reducing agent guaranteed according to the invention enables, for example in the case of catalyst systems, even when relatively small amounts of reducing agent are introduced into a catalytic exhaust gas to be treated, substantially better conversion rates than conventional systems.
- the means for uniform distribution of the reactant are designed as an orifice or throttle introduced into the tube.
- an orifice or throttle is available very inexpensively and can be introduced in a simple manner at a desired point on the feed or metering tube of the reactant.
- the feed pipe has a first region which extends essentially perpendicular to the direction of flow of the flowing gas and a second region which extends essentially parallel to the direction of flow of the flowing gas, the openings , via which the reactant can be introduced into the flowing gas from the feed pipe, are formed in a section of the pipe wall of the second region, and the means for uniformly distributing the reactant are provided immediately upstream of this section.
- a shaped feed tube proves to be easily attachable to an exhaust pipe through which an exhaust gas flows.
- the reducing agent is added, for example, in the case of an exhaust system
- Feed pipe transition between the first and second area of the feed pipe
- an uneven wall film degradation of the reducing agent Conventionally, the reducing agent only emerged from part of the openings at the end of the feed pipe, as a result of which it was no longer possible to ensure a good uniform distribution in the entire operating range of the system.
- this uneven wall film degradation is compensated by the fact that, for example when using an orifice or throttle, the reducing agent is concentrated again in the center of the spray tube, and then caused by the compressed air mentioned can be introduced evenly as an aerosol into the exhaust gas stream through the outlet holes ,
- Figure 1 is a schematic side sectional view of a preferred embodiment of the invention
- Figure 2 is an enlarged view of area X of Figure 1.
- FIG. 1 the wall of an exhaust pipe section 10 is shown, in which exhaust gases from an internal combustion engine are led to a reduction catalyst.
- the direction of flow of the exhaust gases is indicated by the arrows p.
- a feed pipe 1 opens into the exhaust pipe section 10, via which reducing agent can be introduced into the exhaust pipe section from a (not shown) reducing agent store.
- reducing agent can be introduced into the exhaust pipe section from a (not shown) reducing agent store.
- hydrocarbons for example diesel fuels or the like
- urea-water solutions are suitable as reducing agents, for example via an injection nozzle, a carburetor device or others
- Dosing devices can be introduced into the supply line.
- the feed line 1 has a first region la within the exhaust pipe, which extends essentially perpendicular to the flow direction of the exhaust gas, a second region lb which extends essentially parallel to the flow direction of the gas and the regions la, lb connecting bending area lc.
- the area lb of the feed pipe is expediently arranged centrally with respect to the exhaust pipe and extends in a direction which corresponds at least approximately to the exhaust gas flow in the exhaust pipe.
- a section designated X is formed, which is shown enlarged in FIG.
- the feed pipe 1 has a plurality of openings 2 formed around the circumference of the wall of the pipe section 1b, from which reducing agents can pass from the feed pipe 1 into the exhaust pipe.
- a throttle 3 is arranged, which has a central throttle opening 3a. The function of this throttle 3 in operative connection with the openings 2 is explained below.
- the feed pipe 1 is fastened, for example, to the wall 10 of the exhaust pipe by means of a screw connection 11.
- the throttle 3 serves to concentrate the wall film in the middle of the spray tube, as a result of which the effect of broken wall films can be compensated for.
- the reducing agent concentrated in the middle of the tube 1 by means of the throttle 3 is pressed through the central opening 3a of the throttle by means of the compressed air mentioned, which leads to a uniform application of the reducing agent to the openings 2.
- the use of the throttle 3 greatly improves the quality of the aerosol formation compared to conventional solutions, so that the overall efficiency of the system, ie the NO x reduction compared to conventional solutions, can be improved.
- the system can be aligned to different requirements or motors by means of parameters with regard to arrangement, size and number of openings 2 and with regard to the dimensions of central opening 3a of throttle 3.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Combustion & Propulsion (AREA)
- Toxicology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
- Treating Waste Gases (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020017006726A KR20010090608A (en) | 1999-09-30 | 2000-09-14 | Device for impinging a flowing gas with a reactant |
JP2001526278A JP2003510175A (en) | 1999-09-30 | 2000-09-14 | Apparatus for supplying reactants to flowing gas |
EP00963988A EP1191995A1 (en) | 1999-09-30 | 2000-09-14 | Device for impinging a flowing gas with a reactant |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19946901A DE19946901A1 (en) | 1999-09-30 | 1999-09-30 | Device for supplying a flowing gas with a reactant |
DE19946901.6 | 1999-09-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001023074A1 true WO2001023074A1 (en) | 2001-04-05 |
Family
ID=7923865
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2000/003195 WO2001023074A1 (en) | 1999-09-30 | 2000-09-14 | Device for impinging a flowing gas with a reactant |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1191995A1 (en) |
JP (1) | JP2003510175A (en) |
KR (1) | KR20010090608A (en) |
DE (1) | DE19946901A1 (en) |
WO (1) | WO2001023074A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006056499A1 (en) * | 2004-11-25 | 2006-06-01 | Robert Bosch Gmbh | Gas treatment device |
WO2006114203A1 (en) * | 2005-04-26 | 2006-11-02 | Daimlerchrysler Ag | Dispenser device and method for introduction of reducing agents into an exhaust gas from an internal combustion engine |
US7895828B2 (en) | 2004-10-29 | 2011-03-01 | Nissan Diessel Motor Co., Ltd. | Liquid reducing agent injection nozzle having novel structure |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10231216A1 (en) * | 2002-07-11 | 2004-01-22 | Hydraulik-Ring Gmbh | Device for exhaust gas aftertreatment of motor vehicles, in particular diesel motor vehicles |
EP1691046B1 (en) | 2003-09-19 | 2013-04-24 | Nissan Diesel Motor Co., Ltd. | Exhaust emission purification apparatus for an internal combustion engine |
JP4090972B2 (en) | 2003-09-19 | 2008-05-28 | 日産ディーゼル工業株式会社 | Engine exhaust purification system |
EP1669567B1 (en) | 2003-09-19 | 2012-03-21 | Nissan Diesel Motor Co., Ltd. | Exhaust gas purification device of engine |
WO2005073529A1 (en) | 2004-02-02 | 2005-08-11 | Nissan Diesel Motor Co., Ltd. | Device for purifying exhaust gas of engine |
WO2005073527A1 (en) | 2004-02-02 | 2005-08-11 | Nissan Diesel Motor Co., Ltd. | Device for purifying exhaust gas of internal combustion engine |
US20060101810A1 (en) * | 2004-11-15 | 2006-05-18 | Angelo Theodore G | System for dispensing fuel into an exhaust system of a diesel engine |
DE102005002319A1 (en) * | 2005-01-17 | 2006-07-27 | Robert Bosch Gmbh | Apparatus for aftertreatment of exhaust gases |
DE102005002317A1 (en) * | 2005-01-17 | 2006-07-27 | Robert Bosch Gmbh | Apparatus for aftertreatment of exhaust gases |
JP4906525B2 (en) * | 2007-01-26 | 2012-03-28 | ボッシュ株式会社 | Clogging determination device for reducing agent injection valve and clogging determination method for reducing agent injection valve |
WO2008106977A1 (en) * | 2007-03-02 | 2008-09-12 | Grundfos Nonox A/S | A system and method for dosing fluid |
FR2937888B1 (en) * | 2008-10-31 | 2011-08-19 | Solvay | DEVICE AND METHOD FOR DISPENSING A FLUID. |
JP2010281275A (en) * | 2009-06-05 | 2010-12-16 | National Maritime Research Institute | Denitration equipment for scr, and control device thereof |
US20120087840A1 (en) | 2009-07-01 | 2012-04-12 | Sebastian Hirschberg | Apparatus for the Purification of Exhaust Gases containing NOx |
DE102011003356A1 (en) | 2011-01-31 | 2012-08-02 | Robert Bosch Gmbh | Apparatus for delivering reducing agent into exhaust gas passage of internal combustion engine, has gas blowing element that blows out gas to deflect reducing agent introduced from spray opening toward central axis of exhaust gas passage |
JP2013108461A (en) * | 2011-11-22 | 2013-06-06 | Ud Trucks Corp | Reducing agent injection nozzle of engine |
JP5738155B2 (en) * | 2011-11-22 | 2015-06-17 | Udトラックス株式会社 | Engine reducing agent injection nozzle |
DE102013210732A1 (en) | 2013-06-10 | 2014-12-24 | Robert Bosch Gmbh | Atomizing device for emitting a reducing agent in an exhaust passage of an internal combustion engine |
DE202016006242U1 (en) | 2016-05-06 | 2016-12-02 | Moser Systeme Gmbh | Non-contact temperature measurement on hobs |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0537968A1 (en) * | 1991-10-16 | 1993-04-21 | Toyota Jidosha Kabushiki Kaisha | Nitrogen oxides decreasing apparatus for an internal combustion engine |
US5606856A (en) * | 1994-11-19 | 1997-03-04 | Robert Bosch Gmbh | Arrangement for an after treatment of exhaust gases from an internal combustion engine |
WO1997039226A1 (en) * | 1996-04-02 | 1997-10-23 | Kleenair Systems, Inc. | AMMONIA INJECTION IN NOx CONTROL |
-
1999
- 1999-09-30 DE DE19946901A patent/DE19946901A1/en not_active Withdrawn
-
2000
- 2000-09-14 WO PCT/DE2000/003195 patent/WO2001023074A1/en not_active Application Discontinuation
- 2000-09-14 JP JP2001526278A patent/JP2003510175A/en active Pending
- 2000-09-14 EP EP00963988A patent/EP1191995A1/en not_active Withdrawn
- 2000-09-14 KR KR1020017006726A patent/KR20010090608A/en not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0537968A1 (en) * | 1991-10-16 | 1993-04-21 | Toyota Jidosha Kabushiki Kaisha | Nitrogen oxides decreasing apparatus for an internal combustion engine |
US5606856A (en) * | 1994-11-19 | 1997-03-04 | Robert Bosch Gmbh | Arrangement for an after treatment of exhaust gases from an internal combustion engine |
WO1997039226A1 (en) * | 1996-04-02 | 1997-10-23 | Kleenair Systems, Inc. | AMMONIA INJECTION IN NOx CONTROL |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7895828B2 (en) | 2004-10-29 | 2011-03-01 | Nissan Diessel Motor Co., Ltd. | Liquid reducing agent injection nozzle having novel structure |
WO2006056499A1 (en) * | 2004-11-25 | 2006-06-01 | Robert Bosch Gmbh | Gas treatment device |
WO2006114203A1 (en) * | 2005-04-26 | 2006-11-02 | Daimlerchrysler Ag | Dispenser device and method for introduction of reducing agents into an exhaust gas from an internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
DE19946901A1 (en) | 2001-04-05 |
EP1191995A1 (en) | 2002-04-03 |
JP2003510175A (en) | 2003-03-18 |
KR20010090608A (en) | 2001-10-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2001023074A1 (en) | Device for impinging a flowing gas with a reactant | |
EP1051235B1 (en) | Device for introducing a reducing agent into a section of the exhaust pipe of an internal combustion engine | |
EP1969213B1 (en) | Fixture for mounting in an exhaust line of an internal combustion engine | |
DE19938854C1 (en) | Apparatus for catalytic reduction of nitrogen oxides-containing exhaust gases from IC engines has diffuser with exhaust gas channels having increasing cross-section in flow direction between mixer and converter | |
EP1956206B1 (en) | Exhaust gas cleaning system | |
EP2659101B1 (en) | Device for supplying fluids in exhaust systems | |
EP0826097B1 (en) | Pre-mixing chamber for an exhaust gas cleaning unit | |
DE102007052262B4 (en) | Device for mixing and/or evaporating a reducing agent and device for applying a reducing agent to an exhaust gas stream | |
DE102008009564B4 (en) | Exhaust after-treatment system for an internal combustion engine | |
EP2687697B1 (en) | Mixing device for the aftertreatment of exhaust gases | |
EP1054139A1 (en) | Exhaust gas purification arrangement with NOx reduction and addition of reduction agent | |
WO2013010700A1 (en) | Arrangement for introducing an additive into a gas flow | |
DE102010014037A1 (en) | Reducing agent i.e. urea, decomposition system, has reducing agent injector coupled with exhaust chamber, where reducing agent injector is fixed in reducing agent injection connection part with exhaust gas in exhaust chamber | |
DE10129592A1 (en) | Reductant delivery for vehicle exhaust system includes liquid metering unit in sealed control volume of casing, mixing chamber and compressed air inlet | |
EP2148053B1 (en) | Catalyst assembly for cleaning an exhaust gas flow | |
EP2570178B1 (en) | Mixing device | |
DE102012014528A1 (en) | Mixing- or evaporation device for exhaust system of internal combustion engine, particularly of motor vehicle, has guide blade that protrudes in direction towards long side wall, where additional guide blade protrudes in acute angle | |
EP2347106B1 (en) | Equipment for mixing and/or evaporating a reducing agent and equipment for applying a reducing agent to an exhaust gas flow | |
WO2020108991A1 (en) | Exhaust-gas aftertreatment system of compact construction | |
WO2006056499A1 (en) | Gas treatment device | |
EP3068986A1 (en) | Injection module and exhaust system having an injection module | |
DE102019008458B4 (en) | exhaust aftertreatment system | |
EP3152420A1 (en) | Injection module and exhaust system having an injection module | |
EP2823878B1 (en) | Multi-stage plate mixer | |
WO2020216520A1 (en) | Mixing device for an exhaust gas aftertreatment system of a motor vehicle, exhaust gas aftertreatment system, and motor vehicle |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 2000963988 Country of ref document: EP |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): JP KR US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
ENP | Entry into the national phase |
Ref document number: 2001 526278 Country of ref document: JP Kind code of ref document: A |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 1020017006726 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 09856910 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 2000963988 Country of ref document: EP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 2000963988 Country of ref document: EP |