BR0214756B1 - junta filetada tubular superior. - Google Patents

junta filetada tubular superior.

Info

Publication number
BR0214756B1
BR0214756B1 BRPI0214756-4A BR0214756A BR0214756B1 BR 0214756 B1 BR0214756 B1 BR 0214756B1 BR 0214756 A BR0214756 A BR 0214756A BR 0214756 B1 BR0214756 B1 BR 0214756B1
Authority
BR
Brazil
Prior art keywords
upper tubular
fillet joint
tubular fillet
joint
tubular
Prior art date
Application number
BRPI0214756-4A
Other languages
English (en)
Portuguese (pt)
Other versions
BR0214756A (pt
Inventor
Pierre Dutilleul
Gabriel Roussie
Eric Verger
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8870242&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR0214756(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed filed Critical
Publication of BR0214756A publication Critical patent/BR0214756A/pt
Publication of BR0214756B1 publication Critical patent/BR0214756B1/pt

Links

Classifications

    • 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
    • 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
    • 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
    • F16L15/001—Screw-threaded joints; Forms of screw-threads for such joints with conical threads
    • F16L15/004—Screw-threaded joints; Forms of screw-threads for such joints with conical threads with axial sealings having at least one plastically deformable sealing surface
    • 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
    • F16L15/06—Screw-threaded joints; Forms of screw-threads for such joints characterised by the shape of the screw-thread

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
  • Earth Drilling (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Joints With Pressure Members (AREA)
  • Gasket Seals (AREA)
BRPI0214756-4A 2001-12-07 2002-12-03 junta filetada tubular superior. BR0214756B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0115870A FR2833335B1 (fr) 2001-12-07 2001-12-07 Joint filete tubulaire superieur contenant au moins un element filete avec levre d'extremite
PCT/FR2002/004144 WO2003048623A1 (fr) 2001-12-07 2002-12-03 Joint filete tubulaire superieur comprenant au moins un element filete avec levre d'extremite

Publications (2)

Publication Number Publication Date
BR0214756A BR0214756A (pt) 2004-09-14
BR0214756B1 true BR0214756B1 (pt) 2011-04-05

Family

ID=8870242

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0214756-4A BR0214756B1 (pt) 2001-12-07 2002-12-03 junta filetada tubular superior.

Country Status (22)

Country Link
US (1) US7334821B2 (enExample)
EP (1) EP1461560B2 (enExample)
JP (1) JP4208192B2 (enExample)
CN (1) CN100390454C (enExample)
AR (1) AR037625A1 (enExample)
AT (1) ATE441803T2 (enExample)
AU (1) AU2002364980B2 (enExample)
BR (1) BR0214756B1 (enExample)
CA (1) CA2466791C (enExample)
DE (1) DE60233595D1 (enExample)
EA (1) EA005612B1 (enExample)
EG (1) EG24865A (enExample)
ES (1) ES2332775T3 (enExample)
FR (1) FR2833335B1 (enExample)
MX (1) MXPA04005368A (enExample)
MY (1) MY130311A (enExample)
NO (1) NO341012B1 (enExample)
OA (1) OA13139A (enExample)
PL (1) PL200032B1 (enExample)
SA (1) SA02230467B1 (enExample)
UA (1) UA77473C2 (enExample)
WO (1) WO2003048623A1 (enExample)

Families Citing this family (87)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3876656B2 (ja) * 2001-07-13 2007-02-07 住友金属工業株式会社 管用ねじ継手
FR2833335B1 (fr) 2001-12-07 2007-05-18 Vallourec Mannesmann Oil & Gas Joint filete tubulaire superieur contenant au moins un element filete avec levre d'extremite
FR2844331B1 (fr) * 2002-01-03 2004-11-26 Vallourec Mannesmann Oil & Gas Procede de realisation d'un joint tubulaire etanche avec expansion plastique
ITRM20020445A1 (it) 2002-09-06 2004-03-07 Tenaris Connections Bv Giunzione filettata per tubi.
US20060006648A1 (en) * 2003-03-06 2006-01-12 Grimmett Harold M Tubular goods with threaded integral joint connections
US7887103B2 (en) * 2003-05-22 2011-02-15 Watherford/Lamb, Inc. Energizing seal for expandable connections
GB0311721D0 (en) 2003-05-22 2003-06-25 Weatherford Lamb Tubing connector
US8220842B2 (en) * 2003-05-30 2012-07-17 Vallourec Mannesmann Oil & Gas France Threaded tubular connection which is resistant to bending stresses
FR2868146B1 (fr) * 2004-03-26 2009-01-23 Vallourec Mannesmann Oil Gas F Joint filete tubulaire resistant aux contraintes de flexion
UA82694C2 (uk) 2003-06-06 2008-05-12 Sumitomo Metal Ind Нарізне з'єднання для сталевих труб
FR2863033B1 (fr) * 2003-11-28 2007-05-11 Vallourec Mannesmann Oil & Gas Realisation, par expansion plastique, d'un joint tubulaire etanche avec surface(s) de butee inclinee(s)
FR2863029B1 (fr) * 2003-11-28 2006-07-07 Vallourec Mannesmann Oil & Gas Realisation, par expansion plastique, d'un joint tubulaire etanche avec surepaisseur(s) de matiere locale(s) initiale(s)
US7384075B2 (en) * 2004-05-14 2008-06-10 Allison Advanced Development Company Threaded joint for gas turbine components
JP2007205361A (ja) * 2004-08-27 2007-08-16 Sumitomo Metal Ind Ltd 鋼管用ねじ継手
FR2874988B1 (fr) * 2004-09-09 2008-05-02 Vallourec Mannesmann Oil & Gas Element male pour un joint filete tubulaire etanche apres expansion diametrale
FR2889727B1 (fr) * 2005-08-09 2007-09-28 Vallourec Mannesmann Oil Gas F Joint filete tubulaire etanche aux liquides et aux gaz
US7798536B2 (en) * 2005-08-11 2010-09-21 Weatherford/Lamb, Inc. Reverse sliding seal for expandable tubular connections
EP2002165B1 (en) * 2006-03-31 2017-09-06 Nippon Steel & Sumitomo Metal Corporation Tubular threaded joint
FR2904031B1 (fr) * 2006-07-20 2014-03-07 Vallourec Mannesmann Oil & Gas Element male, pour un composant de forage, a butee externe et butee interne adaptee au refacage sans perte de couple de resistance, et ensemble de composants de forage associe.
FR2913746B1 (fr) * 2007-03-14 2011-06-24 Vallourec Mannesmann Oil & Gas Joint filete tubulaire etanche pour sollicitations de pression interieure et exterieure
EP2006589B1 (en) 2007-06-22 2011-08-31 Tenaris Connections Aktiengesellschaft Threaded joint with energizable seal
EP2017507B1 (en) 2007-07-16 2016-06-01 Tenaris Connections Limited Threaded joint with resilient seal ring
DE602007008890D1 (de) * 2007-08-24 2010-10-14 Tenaris Connections Ag Verfahren zur Erhöhung der Ermüdungsbeständigkeit einer Schraubverbindung
RU2439416C1 (ru) * 2007-10-03 2012-01-10 Сумитомо Метал Индастриз, Лтд. Резьбовое соединение для стальных труб
FR2923283B1 (fr) * 2007-11-07 2012-10-05 Vallourec Mannesmann Oil & Gas Joint filete comprenant au moins un element filete avec levre d'extremite pour tube metallique.
WO2009060552A1 (en) 2007-11-08 2009-05-14 Sumitomo Metal Industries, Ltd. Threaded joint for steel pipes
FR2925946B1 (fr) * 2007-12-28 2009-12-11 Vallourec Mannesmann Oil & Gas Joint filete tubulaire etanche et resistant a des sollicitations successives de pressions
US7909368B2 (en) * 2008-05-30 2011-03-22 Robroy Industries, Inc. Pipe coupling assembly and method for lined and unlined pipe
AT506876B1 (de) * 2008-06-03 2011-03-15 Voestalpine Tubulars Gmbh & Co Kg Rohrverbindung
FR2937077B1 (fr) 2008-10-15 2010-10-22 Vallourec Mannesmann Oil & Gas Composant pour le forage et l'exploitation des puits d'hydrocarbures
JP5492885B2 (ja) * 2008-10-20 2014-05-14 新日鐵住金株式会社 鋼管用ねじ継手
EP2243920A1 (en) 2009-04-22 2010-10-27 Tenaris Connections Aktiengesellschaft Threaded joint for tubes, pipes and the like
FR2952993B1 (fr) * 2009-11-20 2011-12-16 Vallourec Mannesmann Oil & Gas Joint filete
EP2325435B2 (en) † 2009-11-24 2020-09-30 Tenaris Connections B.V. Threaded joint sealed to [ultra high] internal and external pressures
FR2953271B1 (fr) 2009-11-27 2012-11-16 Vallourec Mannesmann Oil & Gas Ensemble pour la realisation d'un joint filete, procede de vissage et de devissage d'un tel joint et utilisation d'un tel joint dans une colonne montante sous-marine
FR2954453B1 (fr) 2009-12-23 2012-03-09 Vallourec Mannesmann Oil & Gas Ensemble pour la realisation d'un joint filete, procede de vissage et de devissage d'un tel joint et utilisation d'un tel joint dans une colonne montante sous-marine
EP2372211B1 (en) 2010-03-26 2015-06-03 Tenaris Connections Ltd. Thin-walled pipe joint and method to couple a first pipe to a second pipe
GB201005247D0 (en) 2010-03-29 2010-05-12 Hsc Fzco An improved seal between pipes
JP4930647B1 (ja) 2010-06-30 2012-05-16 Ｊｆｅスチール株式会社 管用ねじ継手
JP5660308B2 (ja) * 2010-06-30 2015-01-28 Ｊｆｅスチール株式会社 鋼管用ねじ継手
CA2804503C (en) * 2010-07-07 2018-01-30 National Oilwell Varco, L.P. Torque enhanced threaded connection
US8714600B2 (en) * 2010-07-22 2014-05-06 Vladimir Petrovich Aldohin Highly-tight threaded joint
WO2012056500A1 (ja) * 2010-10-29 2012-05-03 株式会社メタルワン 油井管用ネジ継ぎ手
GB201019413D0 (en) * 2010-11-17 2010-12-29 Hsc Fzco An improved seal between pipes
FR2969738B1 (fr) 2010-12-28 2016-03-25 Vallourec Mannesmann Oil & Gas Joint filete pour le forage et l'exploitation des puits d'hydrocarbures
US9163296B2 (en) 2011-01-25 2015-10-20 Tenaris Coiled Tubes, Llc Coiled tube with varying mechanical properties for superior performance and methods to produce the same by a continuous heat treatment
JP5849749B2 (ja) * 2011-02-28 2016-02-03 Ｊｆｅスチール株式会社 管用ねじ継手
JP5923911B2 (ja) 2011-03-22 2016-05-25 Ｊｆｅスチール株式会社 鋼管用ねじ継手
US9869414B2 (en) * 2011-05-24 2018-01-16 Ultra Premium Oilfield Services, Ltd. Tubular connection and associated threadform
JP5891700B2 (ja) * 2011-10-17 2016-03-23 Ｊｆｅスチール株式会社 管のねじ継手
JP2014013052A (ja) * 2012-07-04 2014-01-23 Jfe Steel Corp 管のねじ継手
RU2500875C1 (ru) * 2012-07-20 2013-12-10 Общество С Ограниченной Ответственностью "Тмк-Премиум Сервис" Высокогерметичное резьбовое соединение насосно-компрессорных труб (варианты)
US8894101B2 (en) * 2012-09-07 2014-11-25 Vetco Gray Inc. Protected integral metal to metal seal
US9677346B2 (en) 2012-11-28 2017-06-13 Ultra Premium Oilfield Services, Ltd. Tubular connection with helically extending torque shoulder
US9869139B2 (en) 2012-11-28 2018-01-16 Ultra Premium Oilfield Services, Ltd. Tubular connection with helically extending torque shoulder
BR112015016765A2 (pt) 2013-01-11 2017-07-11 Tenaris Connections Ltd conexão de tubos de perfuração, tubo de perfuração correspondente e método para montar tubos de perfuração
US9803256B2 (en) 2013-03-14 2017-10-31 Tenaris Coiled Tubes, Llc High performance material for coiled tubing applications and the method of producing the same
EP2789701A1 (en) 2013-04-08 2014-10-15 DALMINE S.p.A. High strength medium wall quenched and tempered seamless steel pipes and related method for manufacturing said steel pipes
EP2789700A1 (en) 2013-04-08 2014-10-15 DALMINE S.p.A. Heavy wall quenched and tempered seamless steel pipes and related method for manufacturing said steel pipes
EP2885440B1 (en) 2013-06-25 2016-03-23 Tenaris Connections Ltd. High-chromium heat-resistant steel
PL2845993T3 (pl) * 2013-09-09 2018-07-31 Sandvik Intellectual Property Ab Łącznik udarowej rury wiertniczej wydajny w przenoszeniu energii
US10428594B2 (en) * 2013-11-22 2019-10-01 Vetco Gray, LLC Alignment guide feature for metal to metal seal protection on mechanical connections and couplings
US10473241B2 (en) 2014-01-09 2019-11-12 Nippon Steel Corporation Threaded joint for steel pipes
US10281066B2 (en) 2014-03-07 2019-05-07 Houston International Specialty, Inc. Flush threaded connection and method of forming and using the flush threaded connection
FR3027338B1 (fr) * 2014-10-16 2016-12-02 Vallourec Oil & Gas France Connexion polyvalente etanche a double butee
US10006569B2 (en) 2015-02-19 2018-06-26 Arcelormittal Tubular Products Luxembourg S.A. Threaded connection for pipes, such as oil and gas pipes
US20160305192A1 (en) 2015-04-14 2016-10-20 Tenaris Connections Limited Ultra-fine grained steels having corrosion-fatigue resistance
RU2604461C1 (ru) 2015-08-21 2016-12-10 Открытое акционерное общество "Первоуральский новотрубный завод" Резьбовое трубное соединение
US11493154B2 (en) 2015-12-11 2022-11-08 Vallourec Oil And Gas France Threaded connection including an intermediate shoulder
EP3260649B1 (en) * 2016-06-21 2019-12-18 Energy Frontier Solutions S.L. Threaded joint for oil and gas pipes
US11124852B2 (en) 2016-08-12 2021-09-21 Tenaris Coiled Tubes, Llc Method and system for manufacturing coiled tubing
FR3060701A1 (fr) * 2016-12-16 2018-06-22 Vallourec Oil And Gas France Joint filete pour composant tubulaire
US10434554B2 (en) 2017-01-17 2019-10-08 Forum Us, Inc. Method of manufacturing a coiled tubing string
JP6690024B2 (ja) * 2017-01-18 2020-04-28 日本製鉄株式会社 鋼管用ねじ継手
CA3047902C (en) * 2017-01-18 2023-07-11 Nippon Steel Corporation Threaded connection for steel pipe
US20180252343A1 (en) 2017-03-03 2018-09-06 Arcelormittal Tubular Products Luxembourg S.A. Torque shoulder of a premium connection
CA3064361C (en) * 2017-05-22 2022-04-12 Nippon Steel Corporation Threaded connection for steel pipes
US11566730B2 (en) 2017-09-05 2023-01-31 Black Diamond Oilfield Rentals LLC Drill pipe
US12320205B2 (en) 2017-09-05 2025-06-03 Black Diamond Oilfield Rentals LLC Drill pipe and optimization thereof
US12000214B2 (en) 2017-09-05 2024-06-04 Black Diamond Oilfield Rentals LLC Drill pipe and optimization thereof
EP3702656B1 (en) 2017-10-25 2022-01-05 Nippon Steel Corporation Threaded connection for steel pipe
EA037765B1 (ru) * 2017-11-09 2021-05-19 Ниппон Стил Корпорейшн Резьбовое соединение для стальной трубы
EP3798409B1 (en) * 2019-09-24 2023-07-12 Vallourec Oil And Gas France Threaded connection including an intermediate shoulder
FR3101659B1 (fr) * 2019-10-08 2022-01-21 Vallourec Oil & Gas France Joint filete avec portee d’etancheite realisee par fabrication additive
BR112022026892A2 (pt) * 2020-06-29 2023-03-07 Pao Tmk Conexão roscada para invólucros
FR3121492B1 (fr) * 2021-03-31 2023-02-24 Vallourec Oil & Gas France Dimensionnement d’un jeu axial de filetage
FR3133897B1 (fr) * 2022-03-25 2024-03-15 Vallourec Oil & Gas France Joint fileté tubulaire

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FR1489013A (fr) 1965-11-05 1967-07-21 Vallourec Joint d'assemblage pour tubes métalliques
JPS5211765B2 (enExample) * 1972-03-31 1977-04-02
FR2359353A1 (fr) 1976-07-23 1978-02-17 Vallourec Joint pour tubes, notamment pour tubes petroliers
US4384737A (en) * 1980-04-25 1983-05-24 Republic Steel Corporation Threaded joint for well casing and tubing
JPS5944552B2 (ja) † 1981-05-14 1984-10-30 新日本製鐵株式会社 高気密性油井管用ネジ継手
EP0087557B1 (de) * 1982-02-27 1985-05-15 MANNESMANN Aktiengesellschaft Rohrverbindung für Metallrohre
US4538840A (en) † 1983-01-03 1985-09-03 Delange Richard W Connector means for use on oil and gas well tubing or the like
US4624488A (en) 1983-12-16 1986-11-25 Hydril Company Tubular connection
JPS616488A (ja) 1984-06-20 1986-01-13 日本鋼管株式会社 油井管用ネジ継手
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US4795200A (en) * 1986-12-04 1989-01-03 Hydril Company Lengthened tubular pin member nose for improving sealing integrity and bearing forces
US5137310A (en) 1990-11-27 1992-08-11 Vallourec Industries Assembly arrangement using frustoconical screwthreads for tubes
DE69535474T2 (de) 1994-10-19 2008-01-03 Vallourec Mannesmann Oil & Gas France Gewindeverbindung für Rohre
JP3726302B2 (ja) † 1995-03-15 2005-12-14 住友金属工業株式会社 油井管用ねじ継手
US5687999A (en) 1995-10-03 1997-11-18 Vallourec Oil & Gas Threaded joint for tubes
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WO1999008034A1 (en) * 1997-08-11 1999-02-18 Marubeni Tubulars, Inc. Tubular connection
FR2784446B1 (fr) * 1998-10-13 2000-12-08 Vallourec Mannesmann Oil & Gas Assemblage filete integral de deux tubes metalliques
CN2366656Y (zh) * 1998-12-30 2000-03-01 宝山钢铁(集团)公司 油井管特殊螺纹过扭矩保护接头
DE19955377C2 (de) † 1999-11-10 2002-05-02 Mannesmann Ag Rohrverbindung
FR2833335B1 (fr) 2001-12-07 2007-05-18 Vallourec Mannesmann Oil & Gas Joint filete tubulaire superieur contenant au moins un element filete avec levre d'extremite

Also Published As

Publication number Publication date
EP1461560B2 (fr) 2016-08-17
EP1461560B1 (fr) 2009-09-02
PL369869A1 (en) 2005-05-02
ES2332775T3 (es) 2010-02-12
US20040262919A1 (en) 2004-12-30
AU2002364980B2 (en) 2008-09-18
AU2002364980A1 (en) 2003-06-17
EG24865A (en) 2010-11-02
WO2003048623A1 (fr) 2003-06-12
JP2005511990A (ja) 2005-04-28
CA2466791C (fr) 2011-02-15
JP4208192B2 (ja) 2009-01-14
MY130311A (en) 2007-06-29
CA2466791A1 (fr) 2003-06-12
AR037625A1 (es) 2004-11-17
US7334821B2 (en) 2008-02-26
ATE441803T2 (de) 2009-09-15
EA200400784A1 (ru) 2004-10-28
EP1461560A1 (fr) 2004-09-29
CN100390454C (zh) 2008-05-28
MXPA04005368A (es) 2004-09-27
CN1639496A (zh) 2005-07-13
UA77473C2 (en) 2006-12-15
DE60233595D1 (de) 2009-10-15
NO20042314L (no) 2004-06-28
FR2833335B1 (fr) 2007-05-18
PL200032B1 (pl) 2008-11-28
NO341012B1 (no) 2017-08-07
OA13139A (fr) 2006-12-13
BR0214756A (pt) 2004-09-14
FR2833335A1 (fr) 2003-06-13
SA02230467B1 (ar) 2009-02-02
EA005612B1 (ru) 2005-04-28

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Legal Events

Date Code Title Description
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 03/12/2002, OBSERVADAS AS CONDICOES LEGAIS.

B25A Requested transfer of rights approved

Owner name: VALLOUREC MANNESMANN OIL AND GAS FRANCE (FR) , NIP

B25D Requested change of name of applicant approved

Owner name: VALLOUREC MANNESMANN OIL AND GAS FRANCE (FR) , NIP

B25D Requested change of name of applicant approved

Owner name: NIPPON STEEL AND SUMITOMO METAL CORPORATION (JP) ,

B25D Requested change of name of applicant approved

Owner name: VALLOUREC OIL AND GAS FRANCE (FR) ; NIPPON STEEL C

Owner name: VALLOUREC OIL AND GAS FRANCE (FR) ; NIPPON STEEL CORPORATION (JP)