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Extract from the Register of European Patents

EP About this file: EP1488073

EP1488073 - DYNAMIC ANNULAR PRESSURE CONTROL APPARATUS AND METHOD [Right-click to bookmark this link]
StatusPatent maintained as amended
Status updated on  29.06.2012
Database last updated on 05.04.2025
Most recent event   Tooltip29.06.2012Patent maintained (B2 publication)published on 01.08.2012  [2012/31]
Applicant(s)For all designated states
Balance B.V.
Kessler Park 1
2280 AB Rijswijk / NL
[2012/31]
Inventor(s)01 / VAN RIET, Egbert, Jan
Volmerlaan 8
NL-2288 GD Rijswijk / NL
 [2004/52]
Representative(s)Giovannini, Francesca, et al
Osha Liang
32, avenue de l'Opéra
75002 Paris / FR
[N/P]
Application number, filing date03742832.319.02.2003
[2004/52]
WO2003US05012
Priority number, dateUS20020358226P20.02.2002         Original published format: US 358226 P
[2004/52]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO03071091
Date:28.08.2003
Language:EN
[2003/35]
Type: A1 Application with search report 
No.:EP1488073
Date:22.12.2004
Language:EN
The application published by WIPO in one of the EPO official languages on 28.08.2003 takes the place of the publication of the European patent application.
[2004/52]
Type: B1 Patent specification 
No.:EP1488073
Date:09.08.2006
Language:EN
[2006/32]
Type: B2 New European patent specification 
No.:EP1488073
Date:01.08.2012
Language:EN
[2012/31]
Search report(s)International search report - published on:EP28.08.2003
ClassificationIPC:E21B21/08, E21B44/00
[2004/52]
CPC:
E21B44/00 (EP); E21B21/08 (EP,US); E21B21/106 (EP)
Designated contracting statesBE,   GB [2006/32]
TitleGerman:DAPC-VORRICHTUNG UND -VERFAHREN[2004/52]
English:DYNAMIC ANNULAR PRESSURE CONTROL APPARATUS AND METHOD[2004/52]
French:APPAREIL ET PROCEDE DE REGULATION DE PRESSION DYNAMIQUE ANNULAIRE[2004/52]
Entry into regional phase09.08.2004National basic fee paid 
09.08.2004Designation fee(s) paid 
09.08.2004Examination fee paid 
Examination procedure10.09.2003Request for preliminary examination filed
International Preliminary Examining Authority: EP
09.08.2004Examination requested  [2004/52]
21.12.2004Amendment by applicant (claims and/or description)
22.03.2005Observations by third parties
18.04.2005Despatch of a communication from the examining division (Time limit: M04)
25.08.2005Reply to a communication from the examining division
01.11.2005Observations by third parties
06.12.2005Communication of intention to grant the patent
27.03.2006Fee for grant paid
27.03.2006Fee for publishing/printing paid
Opposition(s)Opponent(s)01  04.04.2007  04.05.2007  ADMISSIBLE
Secure Drilling International L.P. (Bermuda)
12777 Jones Road, Suite 280
Houston, TX 77070 / US
Opponent's representative
Williams, Michael Ian, et al, et al
Cleveland
10 Fetter Lane
London EC4A 1BR / GB
 [N/P]
18.07.2007Invitation to proprietor to file observations on the notice of opposition
10.10.2007Reply of patent proprietor to notice(s) of opposition
25.10.2007Communication of observations of patent proprietor (Time limit: M04)
08.02.2008Reply of parties involved to observations of patent proprietor
09.02.2009Despatch of communication that the patent will be revoked
23.08.2011Despatch of interlocutory decision in opposition
23.08.2011Legal effect of interlocutory decision in opposition
16.03.2012Despatch of communication that the patent will be maintained as amended
19.06.2012Fee for printing new specification paid
Appeal following opposition03.04.2009Appeal received No.  T0842/09
09.06.2009Statement of grounds filed
23.08.2011Result of appeal procedure: maintenance in amended form
23.08.2011Date of oral proceedings
29.08.2011Minutes of the oral proceedings despatched
Fees paidRenewal fee
11.02.2005Renewal fee patent year 03
24.02.2006Renewal fee patent year 04
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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  TooltipBE09.08.2006
[2007/29]
Cited inInternational search[A]US4709900  (DYHR EINAR [DK]) [A] 1,7 * column A; figure - *;
 [A]EP0436242  (SCHLUMBERGER SERVICES PETROL [FR]) [A] 1,7 * abstract * * page 3, line 49 - page 4, line 7 *;
 [AD]US5857522  (BRADFIELD DAVID H [GB], et al) [AD] 1,7 * abstract *;
 [Y]WO0004269  (DEEP VISION LLC [US]) [Y] 1-12 * abstract * * page 5, line 22 - page 6, line 8 * * page 12, line 14 - line 20 *;
 [AD]US6035952  (BRADFIELD DAVID H [GB], et al) [AD] 1,7 * abstract *;
 [YD]WO0079092  (SHELL INT RESEARCH [NL], et al) [YD] 1-12 * abstract * * page 4, lines 30-35 * * page 5, line 19 - line 33 * * page 8, line 2 - page 9, line 16 *;
 [A]US6176323  (WEIRICH JOHN B [US], et al) [A] 1,7* abstract *;
 [PX]US2002112888  (LEUCHTENBERG CHRISTIAN [GB]) [PX] 1,7 * page 7, paragraph 103 - paragraph 105 *
by applicantUS5857522
 US6035952
OppositionUS3552502
 US3827511
 US4630675
 US4739325
 US5168932
 US5359324
 US5975219
 US6177882
 US6370082
 WO0250398
    - GERD SCHAUMBERG, BOHRLOCH KONTROLL HANDBUCH, D 29221 CELLE, DRUCK GOSLAR SUEDWALL, (1998), vol. 1+2
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.