DE69426770T2 - Werkzeug zum gebrauch inbohrlöchern - Google Patents
Werkzeug zum gebrauch inbohrlöchernInfo
- Publication number
- DE69426770T2 DE69426770T2 DE69426770T DE69426770T DE69426770T2 DE 69426770 T2 DE69426770 T2 DE 69426770T2 DE 69426770 T DE69426770 T DE 69426770T DE 69426770 T DE69426770 T DE 69426770T DE 69426770 T2 DE69426770 T2 DE 69426770T2
- Authority
- DE
- Germany
- Prior art keywords
- tools
- holes
- 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 - Fee Related
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/063—Valve or closure with destructible element, e.g. frangible disc
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/127—Packers; Plugs with inflatable sleeve
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
- E21B33/14—Methods or devices for cementing, for plugging holes, crevices, or the like for cementing casings into boreholes
- E21B33/146—Stage cementing, i.e. discharging cement from casing at different levels
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/082,256 US5368098A (en) | 1993-06-23 | 1993-06-23 | Stage tool |
PCT/EP1994/002066 WO1995000740A1 (en) | 1993-06-23 | 1994-06-23 | Tool for use in wellbore operations |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69426770D1 DE69426770D1 (de) | 2001-04-05 |
DE69426770T2 true DE69426770T2 (de) | 2001-08-02 |
Family
ID=22170054
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69426770T Expired - Fee Related DE69426770T2 (de) | 1993-06-23 | 1994-06-23 | Werkzeug zum gebrauch inbohrlöchern |
Country Status (7)
Country | Link |
---|---|
US (2) | US5368098A (de) |
EP (1) | EP0705379B1 (de) |
AU (1) | AU673101B2 (de) |
CA (1) | CA2155206A1 (de) |
DE (1) | DE69426770T2 (de) |
NO (1) | NO311050B1 (de) |
WO (1) | WO1995000740A1 (de) |
Families Citing this family (82)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5368098A (en) * | 1993-06-23 | 1994-11-29 | Weatherford U.S., Inc. | Stage tool |
US5566757A (en) * | 1995-03-23 | 1996-10-22 | Halliburton Company | Method and apparatus for setting sidetrack plugs in open or cased well bores |
WO1999013195A1 (en) * | 1997-09-09 | 1999-03-18 | Philippe Nobileau | Apparatus and method for installing a branch junction from a main well |
US6253852B1 (en) | 1997-09-09 | 2001-07-03 | Philippe Nobileau | Lateral branch junction for well casing |
US5979560A (en) * | 1997-09-09 | 1999-11-09 | Nobileau; Philippe | Lateral branch junction for well casing |
GB0023032D0 (en) * | 2000-09-20 | 2000-11-01 | Weatherford Lamb | Downhole apparatus |
US6554076B2 (en) | 2001-02-15 | 2003-04-29 | Weatherford/Lamb, Inc. | Hydraulically activated selective circulating/reverse circulating packer assembly |
US6651743B2 (en) * | 2001-05-24 | 2003-11-25 | Halliburton Energy Services, Inc. | Slim hole stage cementer and method |
CA2412072C (en) | 2001-11-19 | 2012-06-19 | Packers Plus Energy Services Inc. | Method and apparatus for wellbore fluid treatment |
US8167047B2 (en) | 2002-08-21 | 2012-05-01 | Packers Plus Energy Services Inc. | Method and apparatus for wellbore fluid treatment |
US8403037B2 (en) | 2009-12-08 | 2013-03-26 | Baker Hughes Incorporated | Dissolvable tool and method |
US9682425B2 (en) | 2009-12-08 | 2017-06-20 | Baker Hughes Incorporated | Coated metallic powder and method of making the same |
US9109429B2 (en) | 2002-12-08 | 2015-08-18 | Baker Hughes Incorporated | Engineered powder compact composite material |
US9101978B2 (en) | 2002-12-08 | 2015-08-11 | Baker Hughes Incorporated | Nanomatrix powder metal compact |
US8327931B2 (en) | 2009-12-08 | 2012-12-11 | Baker Hughes Incorporated | Multi-component disappearing tripping ball and method for making the same |
US9079246B2 (en) | 2009-12-08 | 2015-07-14 | Baker Hughes Incorporated | Method of making a nanomatrix powder metal compact |
US20090084553A1 (en) * | 2004-12-14 | 2009-04-02 | Schlumberger Technology Corporation | Sliding sleeve valve assembly with sand screen |
US8505632B2 (en) | 2004-12-14 | 2013-08-13 | Schlumberger Technology Corporation | Method and apparatus for deploying and using self-locating downhole devices |
US7387165B2 (en) * | 2004-12-14 | 2008-06-17 | Schlumberger Technology Corporation | System for completing multiple well intervals |
NO326033B1 (no) * | 2007-01-08 | 2008-09-01 | Hpi As | Anordning ved nedihulls toveis overtrykksventil |
NO327304B1 (no) * | 2008-03-14 | 2009-06-02 | Statoilhydro Asa | Anordning for festing av en ventil til et rorformet element |
US8522936B2 (en) * | 2008-04-23 | 2013-09-03 | Weatherford/Lamb, Inc. | Shock absorber for sliding sleeve in well |
US8757273B2 (en) | 2008-04-29 | 2014-06-24 | Packers Plus Energy Services Inc. | Downhole sub with hydraulically actuable sleeve valve |
US8727026B2 (en) * | 2008-12-31 | 2014-05-20 | Weatherford/Lamb, Inc. | Dual isolation mechanism of cementation port |
US8496051B2 (en) * | 2009-10-07 | 2013-07-30 | Top-Co Cementing Products Inc. | Stage tool apparatus and method |
US9127515B2 (en) | 2010-10-27 | 2015-09-08 | Baker Hughes Incorporated | Nanomatrix carbon composite |
US9227243B2 (en) | 2009-12-08 | 2016-01-05 | Baker Hughes Incorporated | Method of making a powder metal compact |
US8573295B2 (en) | 2010-11-16 | 2013-11-05 | Baker Hughes Incorporated | Plug and method of unplugging a seat |
US8425651B2 (en) | 2010-07-30 | 2013-04-23 | Baker Hughes Incorporated | Nanomatrix metal composite |
US9243475B2 (en) | 2009-12-08 | 2016-01-26 | Baker Hughes Incorporated | Extruded powder metal compact |
US8528633B2 (en) | 2009-12-08 | 2013-09-10 | Baker Hughes Incorporated | Dissolvable tool and method |
US10240419B2 (en) | 2009-12-08 | 2019-03-26 | Baker Hughes, A Ge Company, Llc | Downhole flow inhibition tool and method of unplugging a seat |
CA2788553C (en) | 2010-02-01 | 2015-05-05 | Halliburton Energy Services, Inc. | Method and apparatus for sealing an annulus of a wellbore |
US8424610B2 (en) | 2010-03-05 | 2013-04-23 | Baker Hughes Incorporated | Flow control arrangement and method |
US8776884B2 (en) | 2010-08-09 | 2014-07-15 | Baker Hughes Incorporated | Formation treatment system and method |
US9090955B2 (en) | 2010-10-27 | 2015-07-28 | Baker Hughes Incorporated | Nanomatrix powder metal composite |
US8839873B2 (en) * | 2010-12-29 | 2014-09-23 | Baker Hughes Incorporated | Isolation of zones for fracturing using removable plugs |
US8631876B2 (en) | 2011-04-28 | 2014-01-21 | Baker Hughes Incorporated | Method of making and using a functionally gradient composite tool |
US9080098B2 (en) | 2011-04-28 | 2015-07-14 | Baker Hughes Incorporated | Functionally gradient composite article |
US9139928B2 (en) | 2011-06-17 | 2015-09-22 | Baker Hughes Incorporated | Corrodible downhole article and method of removing the article from downhole environment |
US9707739B2 (en) | 2011-07-22 | 2017-07-18 | Baker Hughes Incorporated | Intermetallic metallic composite, method of manufacture thereof and articles comprising the same |
US8783365B2 (en) | 2011-07-28 | 2014-07-22 | Baker Hughes Incorporated | Selective hydraulic fracturing tool and method thereof |
US9833838B2 (en) | 2011-07-29 | 2017-12-05 | Baker Hughes, A Ge Company, Llc | Method of controlling the corrosion rate of alloy particles, alloy particle with controlled corrosion rate, and articles comprising the particle |
US9643250B2 (en) | 2011-07-29 | 2017-05-09 | Baker Hughes Incorporated | Method of controlling the corrosion rate of alloy particles, alloy particle with controlled corrosion rate, and articles comprising the particle |
US9057242B2 (en) | 2011-08-05 | 2015-06-16 | Baker Hughes Incorporated | Method of controlling corrosion rate in downhole article, and downhole article having controlled corrosion rate |
US9033055B2 (en) | 2011-08-17 | 2015-05-19 | Baker Hughes Incorporated | Selectively degradable passage restriction and method |
US9856547B2 (en) | 2011-08-30 | 2018-01-02 | Bakers Hughes, A Ge Company, Llc | Nanostructured powder metal compact |
US9090956B2 (en) | 2011-08-30 | 2015-07-28 | Baker Hughes Incorporated | Aluminum alloy powder metal compact |
US9109269B2 (en) | 2011-08-30 | 2015-08-18 | Baker Hughes Incorporated | Magnesium alloy powder metal compact |
US9643144B2 (en) | 2011-09-02 | 2017-05-09 | Baker Hughes Incorporated | Method to generate and disperse nanostructures in a composite material |
US9347119B2 (en) | 2011-09-03 | 2016-05-24 | Baker Hughes Incorporated | Degradable high shock impedance material |
US9187990B2 (en) | 2011-09-03 | 2015-11-17 | Baker Hughes Incorporated | Method of using a degradable shaped charge and perforating gun system |
US9133695B2 (en) | 2011-09-03 | 2015-09-15 | Baker Hughes Incorporated | Degradable shaped charge and perforating gun system |
US9238953B2 (en) | 2011-11-08 | 2016-01-19 | Schlumberger Technology Corporation | Completion method for stimulation of multiple intervals |
US9284812B2 (en) | 2011-11-21 | 2016-03-15 | Baker Hughes Incorporated | System for increasing swelling efficiency |
US9010416B2 (en) | 2012-01-25 | 2015-04-21 | Baker Hughes Incorporated | Tubular anchoring system and a seat for use in the same |
US9068428B2 (en) | 2012-02-13 | 2015-06-30 | Baker Hughes Incorporated | Selectively corrodible downhole article and method of use |
US9605508B2 (en) | 2012-05-08 | 2017-03-28 | Baker Hughes Incorporated | Disintegrable and conformable metallic seal, and method of making the same |
US9650851B2 (en) | 2012-06-18 | 2017-05-16 | Schlumberger Technology Corporation | Autonomous untethered well object |
WO2014035383A1 (en) * | 2012-08-29 | 2014-03-06 | Halliburton Energy Services, Inc. | A reclosable sleeve assembly and methods for isolating hydrocarbon production |
US9885222B2 (en) | 2013-02-14 | 2018-02-06 | Top-Co Inc. | Stage tool apparatus and components for same |
CN104213869A (zh) * | 2013-06-05 | 2014-12-17 | 中国石油天然气集团公司 | 一种金属密封分级注水泥器及使用方法 |
US9856714B2 (en) | 2013-07-17 | 2018-01-02 | Weatherford Technology Holdings, Llc | Zone select stage tool system |
US9316091B2 (en) | 2013-07-26 | 2016-04-19 | Weatherford/Lamb, Inc. | Electronically-actuated cementing port collar |
US9816339B2 (en) | 2013-09-03 | 2017-11-14 | Baker Hughes, A Ge Company, Llc | Plug reception assembly and method of reducing restriction in a borehole |
US9631468B2 (en) | 2013-09-03 | 2017-04-25 | Schlumberger Technology Corporation | Well treatment |
WO2015094172A1 (en) * | 2013-12-17 | 2015-06-25 | Halliburton Energy Services, Inc. | Crimping to adjust fluid flow for autonomous inflow control devices |
CA2936851A1 (en) | 2014-02-21 | 2015-08-27 | Terves, Inc. | Fluid activated disintegrating metal system |
US11167343B2 (en) | 2014-02-21 | 2021-11-09 | Terves, Llc | Galvanically-active in situ formed particles for controlled rate dissolving tools |
WO2015130258A1 (en) * | 2014-02-25 | 2015-09-03 | Halliburton Energy Services, Inc. | Frangible plug to control flow through a completion |
US20150300101A1 (en) | 2014-04-22 | 2015-10-22 | Ronald C. PARSONS and Denise M. PARSONS, trustees under the Ronald C. PARSONS and Denise M. I | Expandable tubular thread protection |
US9910026B2 (en) | 2015-01-21 | 2018-03-06 | Baker Hughes, A Ge Company, Llc | High temperature tracers for downhole detection of produced water |
US10378303B2 (en) | 2015-03-05 | 2019-08-13 | Baker Hughes, A Ge Company, Llc | Downhole tool and method of forming the same |
US10221637B2 (en) | 2015-08-11 | 2019-03-05 | Baker Hughes, A Ge Company, Llc | Methods of manufacturing dissolvable tools via liquid-solid state molding |
US10016810B2 (en) | 2015-12-14 | 2018-07-10 | Baker Hughes, A Ge Company, Llc | Methods of manufacturing degradable tools using a galvanic carrier and tools manufactured thereof |
RU2019139882A (ru) * | 2017-05-08 | 2021-06-09 | Влад РОЗЕНБЛИТ | Муфта ступенчатого цементирования с растворимыми элементами |
CA3012511A1 (en) | 2017-07-27 | 2019-01-27 | Terves Inc. | Degradable metal matrix composite |
CA3042542C (en) * | 2019-05-07 | 2020-08-11 | Key Completions Inc. | Apparatus for downhole fracking and a method thereof |
US11578557B2 (en) * | 2020-08-19 | 2023-02-14 | Saudi Arabian Oil Company | Reverse stage cementing sub |
US11965397B2 (en) * | 2022-07-20 | 2024-04-23 | Halliburton Energy Services, Inc. | Operating sleeve |
US11873696B1 (en) * | 2022-07-21 | 2024-01-16 | Halliburton Energy Services, Inc. | Stage cementing tool |
US11873698B1 (en) * | 2022-09-30 | 2024-01-16 | Halliburton Energy Services, Inc. | Pump-out plug for multi-stage cementer |
Family Cites Families (57)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3006415A (en) * | 1961-10-31 | Cementing apparatus | ||
US1527749A (en) * | 1924-03-24 | 1925-02-24 | Edward F Raymond | Well-cementing plug |
US2109058A (en) * | 1936-10-10 | 1938-02-22 | John F Blee | Cementing plug |
US2263566A (en) * | 1938-11-28 | 1941-11-25 | Boynton Alexander | Cementing device |
US2196657A (en) * | 1939-04-21 | 1940-04-09 | Baker Oil Tools Inc | Well cementing apparatus |
US2662599A (en) * | 1948-01-12 | 1953-12-15 | Baker Oil Tools Inc | Well casing cementing plug and valve device |
US2602510A (en) * | 1948-01-12 | 1952-07-08 | Baker Oil Tools Inc | Ported cementing apparatus |
US2707997A (en) * | 1952-04-30 | 1955-05-10 | Zandmer | Methods and apparatus for sealing a bore hole casing |
US2775304A (en) * | 1953-05-18 | 1956-12-25 | Zandmer Solis Myron | Apparatus for providing ducts between borehole wall and casing |
US2928470A (en) * | 1956-12-03 | 1960-03-15 | Baker Oil Tools Inc | Well cementing apparatus |
US3159219A (en) * | 1958-05-13 | 1964-12-01 | Byron Jackson Inc | Cementing plugs and float equipment |
US3120268A (en) * | 1960-02-19 | 1964-02-04 | Nat Petroleum Corp Ltd | Apparatus for providing ducts through casing in a well |
US3419089A (en) * | 1966-05-20 | 1968-12-31 | Dresser Ind | Tracer bullet, self-sealing |
US3437137A (en) * | 1967-10-13 | 1969-04-08 | Byron Jackson Inc | Conduit plug for separating fluids |
US3524503A (en) * | 1968-09-05 | 1970-08-18 | Halliburton Co | Cementing tool with inflatable packer and method of cementing |
US3581817A (en) * | 1969-03-13 | 1971-06-01 | Baker Oil Tools Inc | Tensioned well bore liner and tool |
US3528498A (en) * | 1969-04-01 | 1970-09-15 | Wilson Ind Inc | Rotary cam casing swage |
US3730267A (en) * | 1971-03-25 | 1973-05-01 | Byron Jackson Inc | Subsea well stage cementing system |
US3842905A (en) * | 1971-04-23 | 1974-10-22 | Halliburton Co | Oil well cementing plug |
US3811500A (en) * | 1971-04-30 | 1974-05-21 | Halliburton Co | Dual sleeve multiple stage cementer and its method of use in cementing oil and gas well casing |
US3749119A (en) * | 1971-11-19 | 1973-07-31 | Camco Inc | Pressure actuated safety valve |
US3768556A (en) * | 1972-05-10 | 1973-10-30 | Halliburton Co | Cementing tool |
US3924677A (en) * | 1974-08-29 | 1975-12-09 | Harry Koplin | Device for use in the completion of an oil or gas well |
US3948322A (en) * | 1975-04-23 | 1976-04-06 | Halliburton Company | Multiple stage cementing tool with inflation packer and methods of use |
US4176717A (en) * | 1978-04-03 | 1979-12-04 | Hix Harold A | Cementing tool and method of utilizing same |
US4175619A (en) * | 1978-09-11 | 1979-11-27 | Davis Carl A | Well collar or shoe and cementing/drilling process |
US4246968A (en) * | 1979-10-17 | 1981-01-27 | Halliburton Company | Cementing tool with protective sleeve |
US4286662A (en) * | 1979-11-05 | 1981-09-01 | Page John S Jr | Tubing drain |
US4421165A (en) * | 1980-07-15 | 1983-12-20 | Halliburton Company | Multiple stage cementer and casing inflation packer |
US4356867A (en) * | 1981-02-09 | 1982-11-02 | Baker International Corporation | Temporary lock-open tool for subterranean well valve |
US4411316A (en) * | 1981-02-09 | 1983-10-25 | Baker International Corporation | Subterranean well valve with lock open mechanism |
US4385663A (en) * | 1981-08-03 | 1983-05-31 | Chevron Research Company | Packerless well completion assembly |
US4390186A (en) * | 1982-02-04 | 1983-06-28 | Combustion Engineering, Inc. | Metal-to-metal ribbed seal |
US4487263A (en) * | 1982-12-27 | 1984-12-11 | William Jani | Cement staging apparatus for wells and including well casing and a process therefor |
US4706747A (en) * | 1985-11-25 | 1987-11-17 | Weatherford U.S., Inc. | Cementing plug |
US4674569A (en) * | 1986-03-28 | 1987-06-23 | Chromalloy American Corporation | Stage cementing tool |
US4711300A (en) * | 1986-05-14 | 1987-12-08 | Wardlaw Iii Louis J | Downhole cementing tool assembly |
US4749047A (en) * | 1987-04-30 | 1988-06-07 | Cameron Iron Works Usa, Inc. | Annular wellhead seal |
DE3725820C1 (de) * | 1987-08-04 | 1988-05-26 | Mohrlok, Werner, 7218 Trossingen, De | |
US4796705A (en) * | 1987-08-26 | 1989-01-10 | Baker Oil Tools, Inc. | Subsurface well safety valve |
US4842062A (en) * | 1988-02-05 | 1989-06-27 | Weatherford U.S., Inc. | Hydraulic lock alleviation device, well cementing stage tool, and related methods |
US4911243A (en) * | 1988-07-14 | 1990-03-27 | Amoco Corporation | Method for disconnecting a marine drilling riser assembly |
US4836279A (en) * | 1988-11-16 | 1989-06-06 | Halliburton Company | Non-rotating plug |
US4911245A (en) * | 1989-03-10 | 1990-03-27 | Vetco Gray Inc. | Metal seal with soft inlays |
US5024273A (en) * | 1989-09-29 | 1991-06-18 | Davis-Lynch, Inc. | Cementing apparatus and method |
US4981177A (en) * | 1989-10-17 | 1991-01-01 | Baker Hughes Incorporated | Method and apparatus for establishing communication with a downhole portion of a control fluid pipe |
US4944351A (en) * | 1989-10-26 | 1990-07-31 | Baker Hughes Incorporated | Downhole safety valve for subterranean well and method |
US5038862A (en) * | 1990-04-25 | 1991-08-13 | Halliburton Company | External sleeve cementing tool |
US5211243A (en) * | 1990-08-27 | 1993-05-18 | Baker Hughes Incorporated | Annulus safety valve |
US5095980A (en) * | 1991-02-15 | 1992-03-17 | Halliburton Company | Non-rotating cementing plug with molded inserts |
US5228518A (en) * | 1991-09-16 | 1993-07-20 | Conoco Inc. | Downhole activated process and apparatus for centralizing pipe in a wellbore |
US5181568A (en) * | 1991-09-26 | 1993-01-26 | Halliburton Company | Methods of selectively reducing the water permeabilities of subterranean formations |
US5181569A (en) * | 1992-03-23 | 1993-01-26 | Otis Engineering Corporation | Pressure operated valve |
US5284205A (en) * | 1992-04-01 | 1994-02-08 | Halliburton Company | Metal to metal seal for well safety valve |
US5318122A (en) * | 1992-08-07 | 1994-06-07 | Baker Hughes, Inc. | Method and apparatus for sealing the juncture between a vertical well and one or more horizontal wells using deformable sealing means |
US5364110A (en) * | 1992-12-11 | 1994-11-15 | Halliburton Company | Downhole tool metal-to-metal seal |
US5368098A (en) * | 1993-06-23 | 1994-11-29 | Weatherford U.S., Inc. | Stage tool |
-
1993
- 1993-06-23 US US08/082,256 patent/US5368098A/en not_active Expired - Lifetime
-
1994
- 1994-06-23 EP EP94922237A patent/EP0705379B1/de not_active Expired - Lifetime
- 1994-06-23 DE DE69426770T patent/DE69426770T2/de not_active Expired - Fee Related
- 1994-06-23 WO PCT/EP1994/002066 patent/WO1995000740A1/en active IP Right Grant
- 1994-06-23 AU AU73445/94A patent/AU673101B2/en not_active Ceased
- 1994-06-23 CA CA002155206A patent/CA2155206A1/en not_active Abandoned
- 1994-10-12 US US08/321,557 patent/US5464062A/en not_active Expired - Fee Related
-
1995
- 1995-08-22 NO NO19953299A patent/NO311050B1/no not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CA2155206A1 (en) | 1995-01-05 |
NO953299D0 (no) | 1995-08-22 |
AU673101B2 (en) | 1996-10-24 |
DE69426770D1 (de) | 2001-04-05 |
US5368098A (en) | 1994-11-29 |
EP0705379A1 (de) | 1996-04-10 |
US5464062A (en) | 1995-11-07 |
NO311050B1 (no) | 2001-10-01 |
AU7344594A (en) | 1995-01-17 |
WO1995000740A1 (en) | 1995-01-05 |
NO953299L (no) | 1995-08-22 |
EP0705379B1 (de) | 2001-02-28 |
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