EP2079822A4 - Schmierende beschichtungszusammensetzung, die für röhrenförmige schraubverbindungen geeignet ist - Google Patents
Schmierende beschichtungszusammensetzung, die für röhrenförmige schraubverbindungen geeignet istInfo
- Publication number
- EP2079822A4 EP2079822A4 EP07830127.2A EP07830127A EP2079822A4 EP 2079822 A4 EP2079822 A4 EP 2079822A4 EP 07830127 A EP07830127 A EP 07830127A EP 2079822 A4 EP2079822 A4 EP 2079822A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- coating composition
- composition suitable
- lubricating coating
- threaded joints
- tubular threaded
- 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.)
- Withdrawn
Links
- 239000008199 coating composition Substances 0.000 title 1
- 230000001050 lubricating effect Effects 0.000 title 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/04—Screw-threaded joints; Forms of screw-threads for such joints with additional sealings
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/022—Ethene
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/14—Synthetic waxes, e.g. polythene waxes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/16—Paraffin waxes; Petrolatum, e.g. slack wax
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/17—Fisher Tropsch reaction products
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/18—Natural waxes, e.g. ceresin, ozocerite, bees wax, carnauba; Degras
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/0235—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/028—Overbased salts thereof
- C10M2207/0285—Overbased salts thereof used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/1253—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/26—Overbased carboxylic acid salts
- C10M2207/262—Overbased carboxylic acid salts derived from hydroxy substituted aromatic acids, e.g. salicylates
- C10M2207/2623—Overbased carboxylic acid salts derived from hydroxy substituted aromatic acids, e.g. salicylates used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/046—Overbasedsulfonic acid salts
- C10M2219/0463—Overbasedsulfonic acid salts used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/64—Environmental friendly compositions
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/015—Dispersions of solid lubricants
- C10N2050/02—Dispersions of solid lubricants dissolved or suspended in a carrier which subsequently evaporates to leave a lubricant coating
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/10—Semi-solids; greasy
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2080/00—Special pretreatment of the material to be lubricated, e.g. phosphatising or chromatising of a metal
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Lubricants (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006280478A JP5145684B2 (ja) | 2006-10-13 | 2006-10-13 | 鋼管用ねじ継手に適した潤滑被膜形成用組成物 |
PCT/JP2007/070393 WO2008044799A1 (en) | 2006-10-13 | 2007-10-12 | Lubricating coating composition suitable for tubular threaded joints |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2079822A1 EP2079822A1 (de) | 2009-07-22 |
EP2079822A4 true EP2079822A4 (de) | 2014-08-20 |
Family
ID=39282983
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07830127.2A Withdrawn EP2079822A4 (de) | 2006-10-13 | 2007-10-12 | Schmierende beschichtungszusammensetzung, die für röhrenförmige schraubverbindungen geeignet ist |
Country Status (11)
Country | Link |
---|---|
US (1) | US20090264326A1 (de) |
EP (1) | EP2079822A4 (de) |
JP (1) | JP5145684B2 (de) |
CN (1) | CN101535458B (de) |
AR (1) | AR063281A1 (de) |
BR (1) | BRPI0717398A2 (de) |
CA (1) | CA2665966C (de) |
MX (1) | MX336519B (de) |
NO (1) | NO20091381L (de) |
RU (1) | RU2418041C2 (de) |
WO (1) | WO2008044799A1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AR076167A1 (es) * | 2009-03-30 | 2011-05-26 | Sumitomo Metal Ind | Aparato y metodo para la aplicacion de un lubricante a una porcion roscada de una tuberia de acero |
FR2966191B1 (fr) | 2010-10-15 | 2013-11-01 | Vallourec Mannesmann Oil & Gas | Composant filete tubulaire et joint resultant |
DE202011104255U1 (de) | 2011-08-11 | 2011-11-15 | Voswinkel Entwicklungs- Und Verwaltungs-Gmbh & Co. Kg | Schraubkupplung zum lösbaren Verbinden von Hochdruckhydraulikleitungen |
CA2922387C (en) | 2013-09-02 | 2017-09-26 | Nippon Steel & Sumitomo Metal Corporation | Lubricant film-forming composition and screw joint for steel pipe |
US9643206B2 (en) * | 2013-09-20 | 2017-05-09 | Nabors Industries, Inc. | Lubricant application to threaded pipe connections |
JP5979795B2 (ja) * | 2014-10-28 | 2016-08-31 | ヤマハ発動機株式会社 | コンロッド、内燃機関および自動車両 |
RU2606388C1 (ru) * | 2015-07-20 | 2017-01-10 | Общество с ограниченной ответственностью Научно-исследовательское производственное предприятие"ВАЛЬМА" | Резьбовая смазка |
MX2018015818A (es) * | 2016-06-30 | 2019-05-27 | Nippon Steel & Sumitomo Metal Corp | Conexion roscada para tuberia y metodo para producir conexion roscada para tuberia. |
WO2018074212A1 (ja) * | 2016-10-18 | 2018-04-26 | 新日鐵住金株式会社 | 管用ねじ継手及び管用ねじ継手の製造方法 |
US11732211B2 (en) | 2021-11-30 | 2023-08-22 | Rtx Scientific, Incorporated | Pipe sealing compound/adjunct lubricant |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1350834A1 (de) * | 2000-12-04 | 2003-10-08 | Sumitomo Metal Industries, Ltd. | Schmierfilmbildende zusammensetzung zum schmieren von schraubverbindungen |
US20040239105A1 (en) * | 2002-05-31 | 2004-12-02 | Keishi Matsumoto | Threaded joint for steel pipes |
WO2006104251A1 (en) * | 2005-03-29 | 2006-10-05 | Sumitomo Metal Industries, Ltd. | Threaded joint for steel pipes |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2813375B1 (fr) | 2000-08-31 | 2003-06-20 | Vallourec Mannesmann Oil & Gas | Element filete pour joint filete tubulaire resistant au grippage |
JP2003073681A (ja) * | 2001-09-03 | 2003-03-12 | Hitachi Ltd | 冷蔵庫用作動媒体組成物又は該組成物を用いた冷蔵庫 |
US6919301B2 (en) * | 2001-10-16 | 2005-07-19 | Nsk Ltd. | Grease composition and rolling apparatus |
JP2003301190A (ja) * | 2002-02-06 | 2003-10-21 | Nsk Ltd | グリース組成物及び転動装置 |
JP4218423B2 (ja) * | 2002-05-31 | 2009-02-04 | 住友金属工業株式会社 | 鋼管用ねじ継手 |
JP4305631B2 (ja) * | 2003-04-11 | 2009-07-29 | 株式会社ジャパンエナジー | 生分解性潤滑剤 |
JP4599874B2 (ja) * | 2004-04-06 | 2010-12-15 | 住友金属工業株式会社 | 油井管用ねじ継手、及びその製造方法 |
-
2006
- 2006-10-13 JP JP2006280478A patent/JP5145684B2/ja active Active
-
2007
- 2007-10-12 CA CA2665966A patent/CA2665966C/en not_active Expired - Fee Related
- 2007-10-12 RU RU2009117854/04A patent/RU2418041C2/ru not_active IP Right Cessation
- 2007-10-12 EP EP07830127.2A patent/EP2079822A4/de not_active Withdrawn
- 2007-10-12 CN CN2007800427433A patent/CN101535458B/zh not_active Expired - Fee Related
- 2007-10-12 WO PCT/JP2007/070393 patent/WO2008044799A1/en active Application Filing
- 2007-10-12 MX MX2009003864A patent/MX336519B/es unknown
- 2007-10-12 BR BRPI0717398-9A patent/BRPI0717398A2/pt not_active Application Discontinuation
- 2007-10-12 AR ARP070104541A patent/AR063281A1/es active IP Right Grant
-
2009
- 2009-04-03 NO NO20091381A patent/NO20091381L/no not_active Application Discontinuation
- 2009-04-10 US US12/385,531 patent/US20090264326A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1350834A1 (de) * | 2000-12-04 | 2003-10-08 | Sumitomo Metal Industries, Ltd. | Schmierfilmbildende zusammensetzung zum schmieren von schraubverbindungen |
US20040239105A1 (en) * | 2002-05-31 | 2004-12-02 | Keishi Matsumoto | Threaded joint for steel pipes |
WO2006104251A1 (en) * | 2005-03-29 | 2006-10-05 | Sumitomo Metal Industries, Ltd. | Threaded joint for steel pipes |
Non-Patent Citations (1)
Title |
---|
See also references of WO2008044799A1 * |
Also Published As
Publication number | Publication date |
---|---|
CA2665966A1 (en) | 2008-04-17 |
JP5145684B2 (ja) | 2013-02-20 |
MX336519B (es) | 2016-01-21 |
WO2008044799A1 (en) | 2008-04-17 |
RU2009117854A (ru) | 2010-11-20 |
EP2079822A1 (de) | 2009-07-22 |
BRPI0717398A2 (pt) | 2013-10-15 |
NO20091381L (no) | 2009-07-09 |
AR063281A1 (es) | 2009-01-21 |
US20090264326A1 (en) | 2009-10-22 |
MX2009003864A (es) | 2009-07-02 |
CA2665966C (en) | 2012-01-03 |
CN101535458A (zh) | 2009-09-16 |
JP2008095019A (ja) | 2008-04-24 |
RU2418041C2 (ru) | 2011-05-10 |
CN101535458B (zh) | 2013-06-05 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 20090417 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR |
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DAX | Request for extension of the european patent (deleted) | ||
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: VALLOUREC MANNESMANN OIL & GAS FRANCE Owner name: NIPPON STEEL & SUMITOMO METAL CORPORATION |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: NIPPON STEEL & SUMITOMO METAL CORPORATION Owner name: VALLOUREC OIL AND GAS FRANCE |
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A4 | Supplementary search report drawn up and despatched |
Effective date: 20140721 |
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