blank Quick help
blank Maintenance news

Scheduled maintenance

Regular maintenance outages:
between 05.00 and 05.15 hrs CET (Monday to Sunday).

Other outages
Availability
Register Forum

2022.02.11

More...
blank News flashes

News Flashes

New version of the European Patent Register – SPC proceedings information in the Unitary Patent Register.

2024-07-24

More...
blank Related links

Release notes
European Patent Register Assistant
European Patent Register Resource Book
European Patent Register – pocket guide
FAQ - European Patent Register
FAQ - Register Alert
Federated Register (Flyer)
Global Dossier (Flyer)
Register events
Deep link coverage
Federated Register content
The Patent Information Tour
Fair use charter

Extract from the Register of European Patents

EP About this file: EP2917462

EP2917462 - WELL ISOLATION [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  13.11.2020
Database last updated on 03.09.2024
FormerThe patent has been granted
Status updated on  06.12.2019
FormerGrant of patent is intended
Status updated on  04.12.2019
FormerExamination is in progress
Status updated on  22.11.2019
FormerGrant of patent is intended
Status updated on  11.07.2019
FormerExamination is in progress
Status updated on  30.06.2017
Most recent event   Tooltip08.07.2022Lapse of the patent in a contracting state
New state(s): MK		published on 10.08.2022  [2022/32]
Applicant(s)For all designated states
WEATHERFORD TECHNOLOGY HOLDINGS, LLC
2000 Saint James Place
Houston, Texas 77056 / US
[2017/49]
Former [2015/38]For all designated states
Petrowell Limited
Weatherford Centre
Souterhead Road
Altens Industrial Estate
Aberdeen AB12 3LF / GB
Inventor(s)01 / PURKIS, Daniel George
Petrowell Limited
Weatherford House
Lawson Drive
Dyce
Aberdeen, Aberdeenshire AB21 0DR / GB
 [2020/02]
Former [2015/38]01 / PURKIS, Daniel George
Petrowell Limited
Weatherford House
Lawson Drive
Dyce
Aberdeen Aberdeenshire AB21 0DR / GB
Representative(s)Moreland, David
Marks & Clerk LLP The Beacon
176 St Vincent Street
Glasgow G2 5SG / GB
[N/P]
Former [2020/02]Moreland, David
Marks & Clerk LLP
Aurora
120 Bothwell Street
Glasgow G2 7JS / GB
Former [2015/38]Moreland, David
Marks & Clerk LLP
Aurora
120 Bothwell Street
Glasgow
G2 7JS / GB
Application number, filing date13771194.126.09.2013
[2015/38]
WO2013GB52515
Priority number, dateGB2012001722926.09.2012         Original published format: GB 201217229
[2015/38]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report
No.:WO2014049360
Date:03.04.2014
Language:EN
[2014/14]
Type: A2 Application without search report 
No.:EP2917462
Date:16.09.2015
Language:EN
The application published by WIPO in one of the EPO official languages on 03.04.2014 takes the place of the publication of the European patent application.
[2015/38]
Type: B1 Patent specification 
No.:EP2917462
Date:08.01.2020
Language:EN
[2020/02]
Type: B8 Corrected title page of specification 
No.:EP2917462
Date:26.02.2020
[2020/09]
Search report(s)International search report - published on:EP23.10.2014
ClassificationIPC:E21B33/10, E21B34/06, E21B47/06, E21B47/10
[2015/38]
CPC:
E21B33/10 (EP,GB,US); E21B34/06 (GB,US); E21B47/12 (EP,GB,US);
E21B33/12 (US); E21B47/06 (US); E21B47/135 (US);
E21B47/14 (US); E21B47/26 (US); E21B2200/04 (GB,US) (-)
Designated contracting statesAL,   AT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GR,   HR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2020/04]
Former [2015/38]AL,  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 
Extension statesBANot yet paid
MENot yet paid
TitleGerman:BOHRLOCHISOLIERUNG[2015/38]
English:WELL ISOLATION[2015/38]
French:ISOLATION DE PUITS[2015/38]
Entry into regional phase30.03.2015National basic fee paid 
30.03.2015Designation fee(s) paid 
30.03.2015Examination fee paid 
Examination procedure30.03.2015Examination requested  [2015/38]
02.02.2016Amendment by applicant (claims and/or description)
30.06.2017Despatch of a communication from the examining division (Time limit: M06)
19.12.2017Reply to a communication from the examining division
15.03.2018Despatch of a communication from the examining division (Time limit: M03)
21.06.2018Reply to a communication from the examining division
09.11.2018Despatch of a communication from the examining division (Time limit: M04)
19.03.2019Reply to a communication from the examining division
12.07.2019Communication of intention to grant the patent
21.11.2019Disapproval of the communication of intention to grant the patent by the applicant or resumption of examination proceedings by the EPO
21.11.2019Fee for grant paid
21.11.2019Fee for publishing/printing paid
04.12.2019Information about intention to grant a patent
04.12.2019Receipt of the translation of the claim(s)
Divisional application(s)The date of the Examining Division's first communication in respect of the earliest application for which a communication has been issued is  30.06.2017
Opposition(s)09.10.2020No opposition filed within time limit [2020/51]
Fees paidRenewal fee
11.09.2015Renewal fee patent year 03
13.09.2016Renewal fee patent year 04
12.09.2017Renewal fee patent year 05
11.09.2018Renewal fee patent year 06
13.09.2019Renewal fee patent year 07
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  TooltipHU26.09.2013
AL08.01.2020
AT08.01.2020
CY08.01.2020
CZ08.01.2020
EE08.01.2020
ES08.01.2020
FI08.01.2020
HR08.01.2020
IT08.01.2020
LT08.01.2020
LV08.01.2020
MC08.01.2020
MK08.01.2020
MT08.01.2020
PL08.01.2020
RO08.01.2020
RS08.01.2020
SE08.01.2020
SI08.01.2020
SK08.01.2020
SM08.01.2020
TR08.01.2020
BG08.04.2020
GR09.04.2020
IS08.05.2020
PT31.05.2020
IE26.09.2020
LU26.09.2020
BE30.09.2020
CH30.09.2020
FR30.09.2020
LI30.09.2020
[2022/31]
Former [2022/30]HU26.09.2013
AL08.01.2020
AT08.01.2020
CY08.01.2020
CZ08.01.2020
EE08.01.2020
ES08.01.2020
FI08.01.2020
HR08.01.2020
IT08.01.2020
LT08.01.2020
LV08.01.2020
MC08.01.2020
MT08.01.2020
PL08.01.2020
RO08.01.2020
RS08.01.2020
SE08.01.2020
SI08.01.2020
SK08.01.2020
SM08.01.2020
TR08.01.2020
BG08.04.2020
GR09.04.2020
IS08.05.2020
PT31.05.2020
IE26.09.2020
LU26.09.2020
BE30.09.2020
CH30.09.2020
FR30.09.2020
LI30.09.2020
Former [2022/27]HU26.09.2013
AT08.01.2020
CY08.01.2020
CZ08.01.2020
EE08.01.2020
ES08.01.2020
FI08.01.2020
HR08.01.2020
IT08.01.2020
LT08.01.2020
LV08.01.2020
MC08.01.2020
MT08.01.2020
PL08.01.2020
RO08.01.2020
RS08.01.2020
SE08.01.2020
SI08.01.2020
SK08.01.2020
SM08.01.2020
TR08.01.2020
BG08.04.2020
GR09.04.2020
IS08.05.2020
PT31.05.2020
IE26.09.2020
LU26.09.2020
BE30.09.2020
CH30.09.2020
FR30.09.2020
LI30.09.2020
Former [2022/26]AT08.01.2020
CZ08.01.2020
EE08.01.2020
ES08.01.2020
FI08.01.2020
HR08.01.2020
IT08.01.2020
LT08.01.2020
LV08.01.2020
MC08.01.2020
PL08.01.2020
RO08.01.2020
RS08.01.2020
SE08.01.2020
SI08.01.2020
SK08.01.2020
SM08.01.2020
TR08.01.2020
BG08.04.2020
GR09.04.2020
IS08.05.2020
PT31.05.2020
IE26.09.2020
LU26.09.2020
BE30.09.2020
CH30.09.2020
FR30.09.2020
LI30.09.2020
Former [2021/37]AT08.01.2020
CZ08.01.2020
EE08.01.2020
ES08.01.2020
FI08.01.2020
HR08.01.2020
IT08.01.2020
LT08.01.2020
LV08.01.2020
MC08.01.2020
PL08.01.2020
RO08.01.2020
RS08.01.2020
SE08.01.2020
SI08.01.2020
SK08.01.2020
SM08.01.2020
BG08.04.2020
GR09.04.2020
IS08.05.2020
PT31.05.2020
IE26.09.2020
LU26.09.2020
BE30.09.2020
CH30.09.2020
FR30.09.2020
LI30.09.2020
Former [2021/36]AT08.01.2020
CZ08.01.2020
EE08.01.2020
ES08.01.2020
FI08.01.2020
HR08.01.2020
IT08.01.2020
LT08.01.2020
LV08.01.2020
MC08.01.2020
PL08.01.2020
RO08.01.2020
RS08.01.2020
SE08.01.2020
SI08.01.2020
SK08.01.2020
SM08.01.2020
BG08.04.2020
GR09.04.2020
IS08.05.2020
PT31.05.2020
LU26.09.2020
BE30.09.2020
FR30.09.2020
Former [2021/35]AT08.01.2020
CZ08.01.2020
EE08.01.2020
ES08.01.2020
FI08.01.2020
HR08.01.2020
IT08.01.2020
LT08.01.2020
LV08.01.2020
MC08.01.2020
PL08.01.2020
RO08.01.2020
RS08.01.2020
SE08.01.2020
SI08.01.2020
SK08.01.2020
SM08.01.2020
BG08.04.2020
GR09.04.2020
IS08.05.2020
PT31.05.2020
LU26.09.2020
FR30.09.2020
Former [2021/27]AT08.01.2020
CZ08.01.2020
EE08.01.2020
ES08.01.2020
FI08.01.2020
HR08.01.2020
IT08.01.2020
LT08.01.2020
LV08.01.2020
MC08.01.2020
PL08.01.2020
RO08.01.2020
RS08.01.2020
SE08.01.2020
SI08.01.2020
SK08.01.2020
SM08.01.2020
BG08.04.2020
GR09.04.2020
IS08.05.2020
PT31.05.2020
LU26.09.2020
Former [2021/23]AT08.01.2020
CZ08.01.2020
EE08.01.2020
ES08.01.2020
FI08.01.2020
HR08.01.2020
IT08.01.2020
LT08.01.2020
LV08.01.2020
MC08.01.2020
PL08.01.2020
RO08.01.2020
RS08.01.2020
SE08.01.2020
SI08.01.2020
SK08.01.2020
SM08.01.2020
BG08.04.2020
GR09.04.2020
IS08.05.2020
PT31.05.2020
Former [2021/10]AT08.01.2020
CZ08.01.2020
EE08.01.2020
ES08.01.2020
FI08.01.2020
HR08.01.2020
IT08.01.2020
LT08.01.2020
LV08.01.2020
PL08.01.2020
RO08.01.2020
RS08.01.2020
SE08.01.2020
SI08.01.2020
SK08.01.2020
SM08.01.2020
BG08.04.2020
GR09.04.2020
IS08.05.2020
PT31.05.2020
Former [2020/50]CZ08.01.2020
EE08.01.2020
ES08.01.2020
FI08.01.2020
HR08.01.2020
LT08.01.2020
LV08.01.2020
RO08.01.2020
RS08.01.2020
SE08.01.2020
SK08.01.2020
SM08.01.2020
BG08.04.2020
GR09.04.2020
IS08.05.2020
PT31.05.2020
Former [2020/49]CZ08.01.2020
ES08.01.2020
FI08.01.2020
HR08.01.2020
LT08.01.2020
LV08.01.2020
RO08.01.2020
RS08.01.2020
SE08.01.2020
SK08.01.2020
SM08.01.2020
BG08.04.2020
GR09.04.2020
IS08.05.2020
PT31.05.2020
Former [2020/48]ES08.01.2020
FI08.01.2020
HR08.01.2020
LT08.01.2020
LV08.01.2020
RO08.01.2020
RS08.01.2020
SE08.01.2020
SM08.01.2020
BG08.04.2020
GR09.04.2020
IS08.05.2020
PT31.05.2020
Former [2020/40]FI08.01.2020
HR08.01.2020
LT08.01.2020
LV08.01.2020
RS08.01.2020
SE08.01.2020
BG08.04.2020
GR09.04.2020
IS08.05.2020
PT31.05.2020
Former [2020/39]FI08.01.2020
HR08.01.2020
LT08.01.2020
LV08.01.2020
RS08.01.2020
SE08.01.2020
BG08.04.2020
GR09.04.2020
PT31.05.2020
Former [2020/38]FI08.01.2020
HR08.01.2020
LT08.01.2020
LV08.01.2020
RS08.01.2020
SE08.01.2020
GR09.04.2020
PT31.05.2020
Former [2020/37]FI08.01.2020
HR08.01.2020
LT08.01.2020
LV08.01.2020
RS08.01.2020
SE08.01.2020
PT31.05.2020
Former [2020/36]FI08.01.2020
LT08.01.2020
RS08.01.2020
PT31.05.2020
Former [2020/35]FI08.01.2020
LT08.01.2020
Cited inInternational search[XI]US2006248949  (GREGORY GILBERT N [US], et al) [X] 1-4,10,61-63,68-73,79,81 * abstract * * figures 1,5,7 * * paragraphs [0023] , [0029] * [I] 5-7,12-60,64-67,74-78,80;
 [XI]WO2006133313  (BAKER HUGHES INC [US], et al) [X] 1-4,10,61-63,72,73,79,81 * abstract * * figures 2,3 * * page 5, line 5 - line 8 * * page 5, line 15 * * page 3, line 22 - page 4, line 4 * [I] 4-7,12-60,64-70,74-78,80;
 [X]GB2439187  (WEATHERFORD LAMB [US]) [X] 1,71,81 * abstract * * figures 1,3 * * page 2, paragraph 3 *;
 [A]US2010163235  (MOOTOO DEXTER [US], et al) [A] 1-81 * abstract * * figures 1,3 * * paragraphs [0032] , [0027] - [0029] - [0042] ** paragraph [0039] *;
 [X]WO2010123585  (COMPLETION TECHNOLOGY LTD [US], et al) [X] 1,71,81 * abstract * * figures 7-8 * * paragraphs [0121] , [0179] - [0180] *
ExaminationUS5995449
 US2005035874
 US2005285753
 WO2006133313
 EP2196622
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.