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Extract from the Register of European Patents

EP About this file: EP4048857

EP4048857 - METHOD FOR PLUGGING AND ABANDONING OIL AND GAS WELLS [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  05.07.2024
Database last updated on 11.09.2024
FormerThe patent has been granted
Status updated on  28.07.2023
FormerGrant of patent is intended
Status updated on  21.03.2023
FormerRequest for examination was made
Status updated on  29.07.2022
FormerThe international publication has been made
Status updated on  01.05.2021
Formerunknown
Status updated on  18.11.2020
Most recent event   Tooltip19.07.2024Lapse of the patent in a contracting state
New state(s): CH		published on 21.08.2024  [2024/34]
Applicant(s)For all designated states
Board of Regents, The University of Texas System
201 West 7th Street
Austin, TX 78701 / US
For all designated states
PQ LLC
300 Lindenwood Drive
Valleybrooke Corporate Center
Malvern, Pennsylvania 19355-1740 / US
[2022/35]
Inventor(s)01 / VAN OORT, Eric
12000 Kirkland Court
Bee Cave, Texas 78738 / US
02 / MCDONALD, Michael
214 Humbercrest Blvd.
Toronto, Ontario M6S4L3 / CA
 [2022/35]
Representative(s)Marks & Clerk LLP
15 Fetter Lane
London EC4A 1BW / GB
[2022/35]
Application number, filing date20804134.323.10.2020
[2022/35]
WO2020US56999
Priority number, dateUS201962925287P24.10.2019         Original published format: US 201962925287 P
[2022/35]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2021081290
Date:29.04.2021
Language:EN
[2021/17]
Type: A1 Application with search report 
No.:EP4048857
Date:31.08.2022
Language:EN
The application published by WIPO in one of the EPO official languages on 29.04.2021 takes the place of the publication of the European patent application.
[2022/35]
Type: B1 Patent specification 
No.:EP4048857
Date:30.08.2023
Language:EN
[2023/35]
Search report(s)International search report - published on:EP29.04.2021
ClassificationIPC:E21B33/13, C09K8/46, C04B103/00, C04B28/26, C09K8/42
[2023/14]
CPC:
E21B33/13 (EP); C09K8/426 (US); C04B28/26 (EP);
C09K8/46 (EP,US); E21B33/14 (US); C04B2103/0008 (EP)
C-Set:
C04B28/26, C04B22/062, C04B22/10 (EP)
Former IPC [2022/35]E21B33/13, C09K8/42
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 [2022/35]  
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:VERFAHREN ZUM STOPFEN UND AUFGEBEN VON ERDÖL- UND ERDGASBOHRLÖCHERN[2023/14]
English:METHOD FOR PLUGGING AND ABANDONING OIL AND GAS WELLS[2022/35]
French:PROCÉDÉ D'OBTURATION ET D'ABANDON DE PUITS DE FORAGE DE PÉTROLE ET DE GAZ[2023/14]
Former [2022/35]VERFAHREN ZUM VERSCHLIESSEN UND AUFGEBEN VON ÖL- UND GASBOHRLÖCHERN
Former [2022/35]PROCÉDÉ D'OBTURATION ET D'ABANDON DE PUITS DE PÉTROLE ET DE GAZ
Entry into regional phase28.04.2022National basic fee paid 
28.04.2022Designation fee(s) paid 
28.04.2022Examination fee paid 
Examination procedure28.04.2022Amendment by applicant (claims and/or description)
28.04.2022Examination requested  [2022/35]
28.04.2022Date on which the examining division has become responsible
22.03.2023Communication of intention to grant the patent
26.07.2023Fee for grant paid
26.07.2023Fee for publishing/printing paid
26.07.2023Receipt of the translation of the claim(s)
Opposition(s)03.06.2024No opposition filed within time limit [2024/32]
Fees paidRenewal fee
25.10.2022Renewal fee patent year 03
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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  TooltipCZ30.08.2023
ES30.08.2023
HR30.08.2023
MC30.08.2023
PL30.08.2023
RO30.08.2023
RS30.08.2023
SK30.08.2023
SM30.08.2023
CH31.10.2023
GR01.12.2023
IS30.12.2023
[2024/34]
Former [2024/28]CZ30.08.2023
ES30.08.2023
HR30.08.2023
MC30.08.2023
PL30.08.2023
RO30.08.2023
RS30.08.2023
SK30.08.2023
SM30.08.2023
GR01.12.2023
IS30.12.2023
Former [2024/23]CZ30.08.2023
ES30.08.2023
HR30.08.2023
PL30.08.2023
RO30.08.2023
RS30.08.2023
SK30.08.2023
SM30.08.2023
GR01.12.2023
IS30.12.2023
Former [2024/20]HR30.08.2023
PL30.08.2023
RS30.08.2023
SM30.08.2023
GR01.12.2023
IS30.12.2023
Former [2024/10]HR30.08.2023
PL30.08.2023
RS30.08.2023
GR01.12.2023
IS30.12.2023
Former [2024/09]GR01.12.2023
IS30.12.2023
Cited inInternational search[A]US2016237779  (HUSBY TOVE [NO], et al) [A] 1-9 * the whole document *;
 [A]NO20161177  (ARCHER OILTOOLS AS [NO]) [A] 1-9 * the whole document *;
 [A]  - Kristian Moum Skjerve, "Evaluation of Shale Formations as Barrier Element for Permanent Plug and Abandonment of Wells", (20130601), URL: https://brage.bibsys.no/xmlui/bitstream/handle/11250/2400752/9368_FULLTEXT.pdf?sequence=1&isAllowed=y, (20180125), XP055444585 [A] 1-9 * the whole document *
 [A]  - STEPHEN WILLIAMS ET AL, "Identification and Qualification of Shale Annular Barriers Using Wireline Logs During Plug and Abandonment Operations", SPE/IADC DRILLING CONFERENCE AND EXHIBITION, (20090317), doi:10.2118/119321-MS, XP055444947 [A] 1-9 * the whole document *

DOI:   http://dx.doi.org/10.2118/119321-MS
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.