Extract from the Register of European Patents

EP About this file: EP1426552

EP1426552 - Method of recovery of hydrocarbons from a subterranean reservoir [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  12.01.2007
Database last updated on 11.04.2026
Most recent event   Tooltip01.08.2008Change - applicantpublished on 03.09.2008  [2008/36]
Applicant(s)For all designated states
BAKER HUGHES INCORPORATED
3900 Essex Lane Suite 1200
Houston TX 77027 / US
[2008/36]
Former [2006/10]For all designated states
BAKER HUGHES INCORPORATED
3900 Essex Lane Suite 1200 P.O. Box 4740 Houston
Texas 77210-4740 / US
Former [2004/24]For all designated states
BAKER HUGHES INCORPORATED
3900 Essex Lane Suite 1200 P.O. Box 4740
Houston Texas 77210-4740 / US
Inventor(s)01 / Estes, Robert A.
16326 Avenplace Road
Tomball Texas 77375 / US
02 / Kahn, Jon B.
19710 Leemyers Lane
Spring Texas 77388 / US
 [2004/24]
Representative(s)Jeffrey, Philip Michael
Dehns
St Bride's House
10 Salisbury Square
London EC4Y 8JD / GB
[N/P]
Former [2004/24]Jeffrey, Philip Michael
Frank B. Dehn & Co. 179 Queen Victoria Street
London EC4V 4EL / GB
Application number, filing date04004829.029.08.2001
[2004/24]
Priority number, dateUS20000228578P29.08.2000         Original published format: US 228578 P
US2000066975926.09.2000         Original published format: US 669759
[2004/24]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP1426552
Date:09.06.2004
Language:EN
[2004/24]
Type: A3 Search report 
No.:EP1426552
Date:15.09.2004
[2004/38]
Type: B1 Patent specification 
No.:EP1426552
Date:08.03.2006
Language:EN
[2006/10]
Search report(s)(Supplementary) European search report - dispatched on:EP02.08.2004
ClassificationIPC:E21B43/16, E21B47/022, G01C19/38
[2004/38]
CPC:
E21B47/022 (EP); G01C19/38 (EP)
Former IPC [2004/24]E21B43/16
Designated contracting statesBE,   DE,   FR,   IT,   NL [2005/22]
Former [2004/24]AT,  BE,  CH,  CY,  DE,  DK,  ES,  FI,  FR,  GB,  GR,  IE,  IT,  LI,  LU,  MC,  NL,  PT,  SE,  TR 
TitleGerman:Verfahren zur Gewinnung von Kohlenwasserstoffen aus einer unterirdischen Lagerstätte[2005/39]
English:Method of recovery of hydrocarbons from a subterranean reservoir[2004/24]
French:Procédé d'extraction d'hydrocarbures à partir d'un reservoir souterrain[2004/24]
Former [2004/24]Verfahren zur Gewinnung von Kohlenwasserstoffen aus einer unterirdischen Lagerstäte
Examination procedure21.02.2005Examination requested  [2005/16]
16.03.2005Loss of particular rights, legal effect: designated state(s)
24.03.2005Despatch of a communication from the examining division (Time limit: M04)
01.07.2005Despatch of communication of loss of particular rights: designated state(s) AT, CH, CY, DK, ES, FI, GB, GR, IE, LU, MC, PT, SE, TR
19.07.2005Reply to a communication from the examining division
26.08.2005Communication of intention to grant the patent
03.01.2006Fee for grant paid
03.01.2006Fee for publishing/printing paid
Parent application(s)   TooltipEP01307344.0  / EP1184539
Opposition(s)11.12.2006No opposition filed within time limit [2007/07]
Fees paidRenewal fee
02.03.2004Renewal fee patent year 03
23.08.2004Renewal fee patent year 04
19.08.2005Renewal fee patent year 05
Penalty fee
Penalty fee Rule 85a EPC 1973
19.04.2005AT   M01   Not yet paid
19.04.2005CH   M01   Not yet paid
19.04.2005CY   M01   Not yet paid
19.04.2005DK   M01   Not yet paid
19.04.2005ES   M01   Not yet paid
19.04.2005FI   M01   Not yet paid
19.04.2005GB   M01   Not yet paid
19.04.2005GR   M01   Not yet paid
19.04.2005IE   M01   Not yet paid
19.04.2005LU   M01   Not yet paid
19.04.2005MC   M01   Not yet paid
19.04.2005PT   M01   Not yet paid
19.04.2005SE   M01   Not yet paid
19.04.2005TR   M01   Not yet paid
Opt-out from the exclusive  Tooltip
competence of the Unified
Patent Court
See the Register of the Unified Patent Court for opt-out data
Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Lapses during opposition  Tooltipdeleted
[2007/45]
Former [2007/41]IT08.03.2006
Documents cited:Search[A] US5868210  (JOHNSON MICHAEL H et al.) [A] 1 * column 6, line 63 - column 7, line 13 * * abstract *
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.