DE3483264D1 - Verfahren zur kontrollierten eingabe eines reagenz in eine fluessigkeit. - Google Patents
Verfahren zur kontrollierten eingabe eines reagenz in eine fluessigkeit.Info
- Publication number
- DE3483264D1 DE3483264D1 DE8484904306T DE3483264T DE3483264D1 DE 3483264 D1 DE3483264 D1 DE 3483264D1 DE 8484904306 T DE8484904306 T DE 8484904306T DE 3483264 T DE3483264 T DE 3483264T DE 3483264 D1 DE3483264 D1 DE 3483264D1
- Authority
- DE
- Germany
- Prior art keywords
- liquid
- controlled entry
- entry
- controlled
- 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.)
- Expired - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/82—Oil-based compositions
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
- A61K9/16—Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
- A61K9/1605—Excipients; Inactive ingredients
- A61K9/1629—Organic macromolecular compounds
- A61K9/1635—Organic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyvinyl pyrrolidone, poly(meth)acrylates
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
- C09K8/524—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning organic depositions, e.g. paraffins or asphaltenes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/62—Compositions for forming crevices or fractures
- C09K8/64—Oil-based compositions
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S507/00—Earth boring, well treating, and oil field chemistry
- Y10S507/902—Controlled release agent
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S507/00—Earth boring, well treating, and oil field chemistry
- Y10S507/927—Well cleaning fluid
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S507/00—Earth boring, well treating, and oil field chemistry
- Y10S507/939—Corrosion inhibitor
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Animal Behavior & Ethology (AREA)
- Pharmacology & Pharmacy (AREA)
- Epidemiology (AREA)
- Medicinal Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Lubricants (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Organic Insulating Materials (AREA)
- Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
- Manufacturing Of Micro-Capsules (AREA)
- Polymerisation Methods In General (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB838331546A GB8331546D0 (en) | 1983-11-25 | 1983-11-25 | Polymeric compositions |
PCT/US1984/001872 WO1985002443A1 (en) | 1983-11-25 | 1984-11-20 | Method for controlled introduction of reagent into a liquid |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3483264D1 true DE3483264D1 (de) | 1990-10-25 |
Family
ID=10552359
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8484904306T Expired - Lifetime DE3483264D1 (de) | 1983-11-25 | 1984-11-20 | Verfahren zur kontrollierten eingabe eines reagenz in eine fluessigkeit. |
DE8585900292T Expired - Lifetime DE3482330D1 (de) | 1983-11-25 | 1984-11-20 | Polymergegenstand. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8585900292T Expired - Lifetime DE3482330D1 (de) | 1983-11-25 | 1984-11-20 | Polymergegenstand. |
Country Status (8)
Country | Link |
---|---|
US (2) | US4660645A (de) |
EP (2) | EP0163698B1 (de) |
JP (1) | JPS60132642A (de) |
AU (2) | AU584595B2 (de) |
DE (2) | DE3483264D1 (de) |
GB (1) | GB8331546D0 (de) |
NO (2) | NO175687C (de) |
WO (2) | WO1985002443A1 (de) |
Families Citing this family (62)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8331546D0 (en) * | 1983-11-25 | 1984-01-04 | Exxon Research Engineering Co | Polymeric compositions |
US4917899A (en) * | 1983-12-22 | 1990-04-17 | Elan Corporation Plc | Controlled absorption diltiazem formulation |
US4741401A (en) * | 1987-01-16 | 1988-05-03 | The Dow Chemical Company | Method for treating subterranean formations |
US4905762A (en) * | 1988-12-30 | 1990-03-06 | Union Oil Company Of California | Inhibiting wax deposition from a wax-containing oil |
US4957169A (en) * | 1989-02-01 | 1990-09-18 | Central Sprinkler Corporation | Sprinkler valve assembly |
US5018577A (en) * | 1990-08-02 | 1991-05-28 | Nalco Chemical Company | Phosphinate inhibitor for scale squeeze applications |
US5164099A (en) * | 1990-12-06 | 1992-11-17 | The Western Company Of North America | Encapsulations for treating subterranean formations and methods for the use thereof |
US5663123A (en) * | 1992-07-15 | 1997-09-02 | Kb Technologies Ltd. | Polymeric earth support fluid compositions and method for their use |
DE69426970T2 (de) * | 1993-11-27 | 2001-09-13 | Aea Technology Plc, Didcot | Verfahren zur Behandlung einer Ölquelle |
GB9503949D0 (en) * | 1995-02-28 | 1995-04-19 | Atomic Energy Authority Uk | Oil well treatment |
US5741758A (en) | 1995-10-13 | 1998-04-21 | Bj Services Company, U.S.A. | Method for controlling gas hydrates in fluid mixtures |
US6897186B2 (en) * | 1997-02-12 | 2005-05-24 | Kg International, Llc | Composition and method for dual function soil grouting excavating or boring fluid |
AU6169598A (en) | 1997-02-12 | 1998-08-26 | K B Technologies Ltd. | Composition and method for a dual-function soil-grouting excavating or boring fluid |
US6025302A (en) * | 1998-05-18 | 2000-02-15 | Bj Services Company | Quaternized polyether amines as gas hydrate inhibitors |
US6279656B1 (en) * | 1999-11-03 | 2001-08-28 | Santrol, Inc. | Downhole chemical delivery system for oil and gas wells |
GB9926156D0 (en) | 1999-11-04 | 2000-01-12 | Norske Stats Oljeselskap | Method of treating a hydrocarbon-bearing measure |
US7291264B2 (en) * | 2000-05-08 | 2007-11-06 | Honeywell International, Inc. | Staged oil filter incorporating additive-releasing particles |
US7018531B2 (en) | 2001-05-30 | 2006-03-28 | Honeywell International Inc. | Additive dispensing cartridge for an oil filter, and oil filter incorporating same |
US7182863B2 (en) | 2000-05-08 | 2007-02-27 | Honeywell International, Inc. | Additive dispersing filter and method of making |
EP1284801A2 (de) * | 2000-05-08 | 2003-02-26 | Honeywell International Inc. | Mehrstufiger ölfilter mit einer aufbereitungsvorrichtung aus pelletiertem material |
EP1287226A1 (de) * | 2000-06-06 | 2003-03-05 | T R Oil Services Limited | Bohrlochbehandlung mit mikrokapseln |
DE60110081D1 (de) * | 2000-07-21 | 2005-05-19 | Sinvent As Trondheim | Kombinierte verrohrung und sandfilter |
US6761220B2 (en) | 2002-02-01 | 2004-07-13 | Halliburton Energy Services, Inc. | Treatment of a well with an encapsulated liquid and process for encapsulating a liquid |
US20040084186A1 (en) * | 2002-10-31 | 2004-05-06 | Allison David B. | Well treatment apparatus and method |
GB2399640B (en) | 2003-03-17 | 2007-02-21 | Statoil Asa | Method and apparatus for determining the nature of submarine reservoirs |
US20050072570A1 (en) * | 2003-10-06 | 2005-04-07 | Lehman Lyle Vaughan | Contamination-resistant sand control apparatus and method for preventing contamination of sand control devices |
GB2409900B (en) | 2004-01-09 | 2006-05-24 | Statoil Asa | Processing seismic data representing a physical system |
GB2422673B (en) * | 2005-02-01 | 2010-03-24 | Electromagnetic Geoservices As | Optimum signal for sea bed logging |
WO2007033477A1 (en) * | 2005-09-21 | 2007-03-29 | Innovative Chemical Technologies Canada Ltd. | Fluid with asphaltene control |
US7598209B2 (en) * | 2006-01-26 | 2009-10-06 | Bj Services Company | Porous composites containing hydrocarbon-soluble well treatment agents and methods for using the same |
GB2434868B (en) | 2006-02-06 | 2010-05-12 | Statoil Asa | Method of conducting a seismic survey |
GB2435693A (en) * | 2006-02-09 | 2007-09-05 | Electromagnetic Geoservices As | Seabed electromagnetic surveying |
GB2439378B (en) * | 2006-06-09 | 2011-03-16 | Electromagnetic Geoservices As | Instrument for measuring electromagnetic signals |
ES2517597T3 (es) * | 2006-10-06 | 2014-11-03 | Vary Petrochem, Llc | Composiciones de separación y métodos de uso |
US7758746B2 (en) * | 2006-10-06 | 2010-07-20 | Vary Petrochem, Llc | Separating compositions and methods of use |
US8062512B2 (en) | 2006-10-06 | 2011-11-22 | Vary Petrochem, Llc | Processes for bitumen separation |
GB2442749B (en) | 2006-10-12 | 2010-05-19 | Electromagnetic Geoservices As | Positioning system |
GB2445582A (en) | 2007-01-09 | 2008-07-16 | Statoil Asa | Method for analysing data from an electromagnetic survey |
US7950455B2 (en) * | 2008-01-14 | 2011-05-31 | Baker Hughes Incorporated | Non-spherical well treating particulates and methods of using the same |
AU2012216547B2 (en) * | 2008-01-28 | 2015-05-28 | Baker Hughes Incorporated | Compositions and methods of treating high temperature subterranean formations |
US7931817B2 (en) * | 2008-02-15 | 2011-04-26 | Honeywell International Inc. | Additive dispensing device and a thermally activated additive dispensing filter having the additive dispensing device |
BRPI0911701A2 (pt) * | 2008-07-21 | 2015-10-06 | 3M Innovative Properties Co | aparelho para a introdução de um aditivo em uma corrente de fluido |
WO2011030824A1 (ja) | 2009-09-11 | 2011-03-17 | 日本エンバイロケミカルズ株式会社 | 徐放性粒子およびその製造方法 |
US9976070B2 (en) | 2010-07-19 | 2018-05-22 | Baker Hughes, A Ge Company, Llc | Method of using shaped compressed pellets in well treatment operations |
US10822536B2 (en) | 2010-07-19 | 2020-11-03 | Baker Hughes, A Ge Company, Llc | Method of using a screen containing a composite for release of well treatment agent into a well |
US9010430B2 (en) | 2010-07-19 | 2015-04-21 | Baker Hughes Incorporated | Method of using shaped compressed pellets in treating a well |
JP6083936B2 (ja) | 2011-03-11 | 2017-02-22 | 大阪ガスケミカル株式会社 | 徐放性粒子の製造方法 |
US9623350B2 (en) | 2013-03-01 | 2017-04-18 | Fram Group Ip Llc | Extended-life oil management system and method of using same |
US9476108B2 (en) | 2013-07-26 | 2016-10-25 | Ecolab Usa Inc. | Utilization of temperature heat adsorption skin temperature as scale control reagent driver |
BR112017001295A2 (pt) | 2014-07-23 | 2017-11-14 | Baker Hughes Inc | compósito que compreende agente de tratamento de poço e/ou um sinalizador aderido a um substrato calcinado de um núcleo revestido por óxido metálico e um método para usar o mesmo |
GB201507480D0 (en) * | 2015-04-30 | 2015-06-17 | Johnson Matthey Plc | Oil field chemical delivery fluids, methods for their use in the targeted delivery of oil field chemicals to subterranean hydrocarbon reservoirs and methods |
WO2016209779A1 (en) * | 2015-06-22 | 2016-12-29 | Schlumberger Technology Corporation | Hydratable polymer slurry and methods for making and using same |
WO2017007362A1 (ru) * | 2015-07-07 | 2017-01-12 | Шлюмберже Текнолоджи Корпорейшн | Композитная присадка для гидроразрыва пласта с реагентами для ингибирования отложений (варианты) |
WO2017015372A1 (en) * | 2015-07-23 | 2017-01-26 | Deepak Patil | Controlled release of well treatment agents into oil wells |
US10641083B2 (en) | 2016-06-02 | 2020-05-05 | Baker Hughes, A Ge Company, Llc | Method of monitoring fluid flow from a reservoir using well treatment agents |
US10413966B2 (en) | 2016-06-20 | 2019-09-17 | Baker Hughes, A Ge Company, Llc | Nanoparticles having magnetic core encapsulated by carbon shell and composites of the same |
KR102511957B1 (ko) * | 2017-02-27 | 2023-03-17 | 에코랍 유에스에이 인코퍼레이티드 | 컴프레서용 방오제제 |
WO2019013799A1 (en) * | 2017-07-13 | 2019-01-17 | Baker Hughes, A Ge Company, Llc | SYSTEM FOR DELIVERING OLEO-SOLUBLE WELL PROCESSING AGENTS AND METHODS OF USE THEREOF |
US20220177775A1 (en) * | 2017-07-13 | 2022-06-09 | Baker Hughes Holdings Llc | Delivery System for Oil-Soluble Well Treatment Agents and Methods of Using the Same |
US11254850B2 (en) | 2017-11-03 | 2022-02-22 | Baker Hughes Holdings Llc | Treatment methods using aqueous fluids containing oil-soluble treatment agents |
US10961444B1 (en) | 2019-11-01 | 2021-03-30 | Baker Hughes Oilfield Operations Llc | Method of using coated composites containing delayed release agent in a well treatment operation |
EP4240804A1 (de) * | 2020-11-04 | 2023-09-13 | The Curators Of The University Of Missouri | Wiedervernetzbare hyperverzweigte polymergele auf basis einer transmidierungsreaktion |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2247711A (en) * | 1941-07-01 | Sterilization of liquids | ||
US2760584A (en) * | 1952-07-22 | 1956-08-28 | California Research Corp | Method and apparatus for preventing corrosion in oil wells |
US2879847A (en) * | 1954-11-29 | 1959-03-31 | August W Willert Jr | Process for increasing the flow in oil wells |
CH468192A (de) * | 1964-06-19 | 1969-02-15 | Ciba Geigy | Verfahren zur Herstellung von Arzneimitteln in Perlenform |
US3336223A (en) * | 1965-06-08 | 1967-08-15 | Atlantic Refining Co | Method and means for maintaining an effective concentration of additives in oil |
US3370650A (en) * | 1965-08-10 | 1968-02-27 | Union Oil Co | Hydraulic fracturing of subterranean formations |
DE1617393C2 (de) * | 1966-01-06 | 1982-11-11 | Československá akademie věd, Praha | Verfahren zur Herstellung von biologisch aktive Stoffe enthaltenden hydrophilen vernetzten Copolymeren |
US3400093A (en) * | 1966-03-11 | 1968-09-03 | Feinberg Irving | Process for preparing a stable polymer latex containing an insecticide |
US3531409A (en) * | 1967-01-06 | 1970-09-29 | Petrolite Corp | Solid solutions of corrosion inhibitors for use in treating oil wells |
US3710795A (en) * | 1970-09-29 | 1973-01-16 | Alza Corp | Drug-delivery device with stretched, rate-controlling membrane |
US3669189A (en) * | 1970-10-28 | 1972-06-13 | Union Oil Co | Method for inhibiting the deposition of wax from a wax-containing oil |
US3693720A (en) * | 1971-01-29 | 1972-09-26 | Exxon Research Engineering Co | Crude oil recovery method using a polymeric wax inhibitor |
US3996934A (en) * | 1971-08-09 | 1976-12-14 | Alza Corporation | Medical bandage |
US3948254A (en) * | 1971-11-08 | 1976-04-06 | Alza Corporation | Novel drug delivery device |
US3782469A (en) * | 1972-05-25 | 1974-01-01 | Cities Service Oil Co | Formation and wellbore scale prevention |
US3854893A (en) * | 1972-06-14 | 1974-12-17 | Exxon Research Engineering Co | Long side chain polymeric flow improvers for waxy hydrocarbon oils |
US3921636A (en) * | 1973-01-15 | 1975-11-25 | Alza Corp | Novel drug delivery device |
FR2238477B1 (de) * | 1973-07-27 | 1976-12-03 | Roussel Uclaf | |
US3923939A (en) * | 1974-06-07 | 1975-12-02 | Alza Corp | Process for improving release kinetics of a monolithic drug delivery device |
US3993072A (en) * | 1974-08-28 | 1976-11-23 | Alza Corporation | Microporous drug delivery device |
AR216922A1 (es) * | 1976-11-11 | 1980-02-15 | Merck Patent Gmbh | Procedimiento para la fabricacion de un medio quirurgico |
US4456067A (en) * | 1981-04-03 | 1984-06-26 | Marathon Oil Company | Process for inhibiting hydrate formation in producing gas wells |
GB8331546D0 (en) * | 1983-11-25 | 1984-01-04 | Exxon Research Engineering Co | Polymeric compositions |
US4670166A (en) * | 1985-02-27 | 1987-06-02 | Exxon Chemical Patents Inc. | Polymer article and its use for controlled introduction of reagent into a fluid |
-
1983
- 1983-11-25 GB GB838331546A patent/GB8331546D0/en active Pending
-
1984
- 1984-11-20 EP EP84904306A patent/EP0163698B1/de not_active Expired - Lifetime
- 1984-11-20 EP EP85900292A patent/EP0162910B1/de not_active Expired - Lifetime
- 1984-11-20 DE DE8484904306T patent/DE3483264D1/de not_active Expired - Lifetime
- 1984-11-20 DE DE8585900292T patent/DE3482330D1/de not_active Expired - Lifetime
- 1984-11-20 AU AU36747/84A patent/AU584595B2/en not_active Ceased
- 1984-11-20 WO PCT/US1984/001872 patent/WO1985002443A1/en active IP Right Grant
- 1984-11-20 US US06/776,174 patent/US4660645A/en not_active Expired - Fee Related
- 1984-11-20 AU AU36782/84A patent/AU582131B2/en not_active Ceased
- 1984-11-20 WO PCT/US1984/001871 patent/WO1985002408A1/en active IP Right Grant
- 1984-11-26 JP JP59249447A patent/JPS60132642A/ja active Pending
-
1985
- 1985-06-20 NO NO852504A patent/NO175687C/no unknown
- 1985-07-11 NO NO852798A patent/NO852798L/no unknown
-
1989
- 1989-01-03 US US07/294,895 patent/US5073276A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0163698A1 (de) | 1985-12-11 |
DE3482330D1 (de) | 1990-06-28 |
US5073276A (en) | 1991-12-17 |
WO1985002408A1 (en) | 1985-06-06 |
GB8331546D0 (en) | 1984-01-04 |
EP0163698A4 (de) | 1987-03-30 |
EP0162910A4 (de) | 1987-03-26 |
WO1985002443A1 (en) | 1985-06-06 |
JPS60132642A (ja) | 1985-07-15 |
AU584595B2 (en) | 1989-06-01 |
EP0162910A1 (de) | 1985-12-04 |
AU582131B2 (en) | 1989-03-16 |
AU3674784A (en) | 1985-06-13 |
US4660645A (en) | 1987-04-28 |
NO175687C (no) | 1994-11-16 |
AU3678284A (en) | 1985-06-13 |
NO852504L (no) | 1985-06-20 |
EP0162910B1 (de) | 1990-05-23 |
NO175687B (no) | 1994-08-08 |
NO852798L (no) | 1985-07-11 |
EP0163698B1 (de) | 1990-09-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |