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Extract from the Register of European Patents

EP About this file: EP2959092

EP2959092 - METHOD OF ENHANCING DRILLING FLUID PERFORMANCE [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  29.09.2017
Database last updated on 28.09.2024
FormerRequest for examination was made
Status updated on  08.06.2017
Most recent event   Tooltip29.09.2017Application deemed to be withdrawnpublished on 01.11.2017  [2017/44]
Applicant(s)For all designated states
Halliburton Energy Services, Inc.
10200 Bellaire Boulevard
Houston, TX 77072 / US
[2016/01]
Inventor(s)01 / NGUYEN, Philip, D.
13419 Piney View Lane
Houston, TX 77044 / US
 [2016/02]
Former [2016/01]01 / NGUYEN, Philip, D.
1107 Janes Avenue
Duncan, OK 73533 / US
Representative(s)Cottrill, Emily Elizabeth Helen
A.A. Thornton & Co.
10 Old Bailey
London EC4M 7NG / GB
[2016/01]
Application number, filing date14754602.212.02.2014
[2016/01]
WO2014US16060
Priority number, dateUS20131377319921.02.2013         Original published format: US201313773199
[2016/01]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2014130323
Date:28.08.2014
Language:EN
[2014/35]
Type: A1 Application with search report 
No.:EP2959092
Date:30.12.2015
Language:EN
The application published by WIPO in one of the EPO official languages on 28.08.2014 takes the place of the publication of the European patent application.
[2015/53]
Search report(s)International search report - published on:KR28.08.2014
(Supplementary) European search report - dispatched on:EP28.09.2016
ClassificationIPC:C09K8/38, C09K8/518, C09K8/94, E21B21/01, E21B21/08
[2016/43]
CPC:
E21B21/14 (EP,US); C09K8/38 (EP,US); C09K8/518 (EP,US);
C09K8/94 (EP,US); E21B21/06 (EP,US)
Former IPC [2016/01]E21B21/01, E21B21/08, C09K8/02
Designated contracting statesAL,   AT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2016/01]
TitleGerman:VERFAHREN ZUR VERBESSERUNG DER BOHRFLÜSSIGKEITSLEISTUNG[2016/01]
English:METHOD OF ENHANCING DRILLING FLUID PERFORMANCE[2016/01]
French:PROCÉDÉ POUR AMÉLIORER L'EFFICACITÉ D'UN FLUIDE DE FORAGE[2016/01]
Entry into regional phase21.08.2015National basic fee paid 
21.08.2015Search fee paid 
21.08.2015Designation fee(s) paid 
21.08.2015Examination fee paid 
Examination procedure21.08.2015Examination requested  [2015/53]
03.03.2016Amendment by applicant (claims and/or description)
25.04.2017Application deemed to be withdrawn, date of legal effect  [2017/44]
09.06.2017Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time  [2017/44]
Fees paidRenewal fee
08.02.2016Renewal fee patent year 03
Penalty fee
Additional fee for renewal fee
28.02.201704   M06   Not yet paid
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Documents cited:Search[I]US2003221831  (REDDY B RAGHAVA [US], et al) [I] 1-15 * page 2 - page 5; example -; claim - *;
 [I]US2004110643  (ZEVALLOS MANUEL LEGENDRE [MX]) [I] 1-15 * page 2 - page 6; example -; claim - *;
 [A]US2006157282  (TILTON FREDERICK T [US], et al) [A] 1-15* the whole document *;
 [A]GB2432859  (WEATHERFORD LAMB [US]) [A] 1-15 * the whole document *;
 [I]US2013029883  (DISMUKE KEITH [US], et al) [I] 1-15 * page 2 - page 4; example -; claim - *
International search[A]US4450010  (BURKHALTER JOHN F [US], et al);
 [A]US6209646  (REDDY BAIREDDY R [US], et al);
 [X]US2005126781  (REDDY B RAGHAVA [US], et al);
 [A]US7642223  (SANTRA ASHOK K [US], et al);
 [A]US2011048711  (LEWIS SAM [US], et al)
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.