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Extract from the Register of European Patents

EP About this file: EP3277776

EP3277776 - FRACTURING FLUIDS AND METHODS OF TREATING HYDROCARBON FORMATIONS [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  26.06.2020
Database last updated on 05.10.2024
FormerExamination is in progress
Status updated on  23.09.2019
FormerRequest for examination was made
Status updated on  05.01.2018
FormerThe international publication has been made
Status updated on  02.10.2017
Most recent event   Tooltip26.06.2020Application deemed to be withdrawnpublished on 29.07.2020  [2020/31]
Applicant(s)For all designated states
Baker Hughes, a GE company, LLC
17021 Aldine Westfield
Houston, TX 77073 / US
[2018/06]
Inventor(s)01 / NELSON, Scott Gregory
P.O. Box 4740
Houston, TX 77210-4740 / US
02 / ZHOU, Jia
P.O. Box 4740
Houston, TX 77210-4740 / US
03 / LI, Leiming
P.O. Box 4740
Houston, TX 77210-4740 / US
 [2018/06]
Representative(s)Lambacher, Michael
V. Füner Ebbinghaus Finck Hano
Postfach 95 01 60
81517 München / DE
[2018/06]
Application number, filing date16774070.330.03.2016
[2018/06]
WO2016US24925
Priority number, dateUS201562140105P30.03.2015         Original published format: US 201562140105 P
[2018/06]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2016160927
Date:06.10.2016
Language:EN
[2016/40]
Type: A1 Application with search report 
No.:EP3277776
Date:07.02.2018
Language:EN
The application published by WIPO in one of the EPO official languages on 06.10.2016 takes the place of the publication of the European patent application.
[2018/06]
Search report(s)International search report - published on:KR06.10.2016
(Supplementary) European search report - dispatched on:EP07.11.2018
ClassificationIPC:C09K8/88, C09K8/68, C09K8/70, C09K8/64, C09K8/82, C09K8/90, C09K8/80
[2018/49]
CPC:
C09K8/703 (EP,CN,US); E21B43/26 (EP,CN,NO,RU,US); C09K8/70 (RU,US);
E21B43/267 (CN,NO,RU,US); E21B37/06 (NO,US); C09K8/035 (CN,US);
C09K8/12 (CN,US); C09K8/34 (CN,US); C09K8/52 (CN,NO,US);
C09K8/5756 (CN,US); C09K8/62 (CN,NO,US); C09K8/64 (EP,US);
C09K8/68 (EP,NO,RU,US); C09K8/685 (EP,CN,NO,US); C09K8/706 (EP,CN,US);
C09K8/76 (RU,US); C09K8/80 (EP,CN,NO,US); C09K8/82 (EP,US);
C09K8/88 (EP,RU,US); C09K8/887 (EP,US); C09K8/90 (EP,US);
E21B21/003 (US); E21B33/134 (US); E21B33/138 (US);
E21B43/04 (US); E21B43/16 (RU); C09K2208/26 (EP,CN,NO,US) (-)
Former IPC [2018/06]C09K8/80, C09K8/035, E21B43/267
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 [2018/06]
TitleGerman:FRAC-FLÜSSIGKEITEN UND VERFAHREN ZUR BEHANDLUNG VON KOHLENWASSERSTOFFFORMATIONEN[2018/06]
English:FRACTURING FLUIDS AND METHODS OF TREATING HYDROCARBON FORMATIONS[2018/06]
French:FLUIDES DE FRACTURATION ET PROCÉDÉS DE TRAITEMENT DE FORMATIONS D'HYDROCARBURES[2018/06]
Entry into regional phase19.10.2017National basic fee paid 
19.10.2017Search fee paid 
19.10.2017Designation fee(s) paid 
19.10.2017Examination fee paid 
Examination procedure19.10.2017Examination requested  [2018/06]
19.10.2017Date on which the examining division has become responsible
29.05.2019Amendment by applicant (claims and/or description)
26.09.2019Despatch of a communication from the examining division (Time limit: M04)
07.02.2020Application deemed to be withdrawn, date of legal effect  [2020/31]
04.03.2020Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time  [2020/31]
Fees paidRenewal fee
13.03.2018Renewal fee patent year 03
22.03.2019Renewal fee patent year 04
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Documents cited:Search[I]US2011120719  (SOANE DAVID [US], et al);
 [A]CN103816821  (LI LEI);
 [I]US2014251610  (BRANNON HAROLD DEAN [US], et al)
International search[Y]US3425971  (GUGLIEMELLI LEWIS A, et al);
 [X]US2008085843  (WANG XIAOLAN [US], et al);
 [A]US2013056213  (MEDVEDEV ANATOLY VLADIMIROVICH [RU], et al);
 [A]US2014158355  (WUTHRICH PHILIP [US], et al);
 [XYA]US2014332214  (ZHOU JIA [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.