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Extract from the Register of European Patents

EP About this file: EP3250784

EP3250784 - DEVICES AND METHODS FOR DOWNHOLE ACOUSTIC IMAGING [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  06.01.2023
Database last updated on 28.03.2026
FormerThe patent has been granted
Status updated on  28.01.2022
FormerGrant of patent is intended
Status updated on  22.09.2021
FormerRequest for examination was made
Status updated on  03.11.2017
FormerThe international publication has been made
Status updated on  14.07.2017
Most recent event   Tooltip19.12.2025Lapse of the patent in a contracting state
New state(s): TR		published on 21.01.2026  [2026/04]
Applicant(s)For all designated states
Baker Hughes Holdings LLC
17021 Aldine Westfield
Houston, TX 77073 / US
[2022/07]
Former [2017/49]For all designated states
BAKER HUGHES, A GE COMPANY, LLC
17021 Aldine Westfield
Houston, TX 77073 / US
Inventor(s)01 / ZHOU, Quming
17021 Aldine Westfield
Houston, TX 77073 / US
02 / LEGGETT, V., III, James
17021 Aldine Westfield
Houston, TX 77073 / US
 [2018/04]
Former [2017/49]01 / ZHOU, Quming
2929 Allen Parkway
Suite 2100
Houston, TX 77019-2118 / US
02 / LEGGETT, V., III, James
2929 Allen Parkway
Suite 2100
Houston, TX 77019-2118 / US
Representative(s)Novagraaf Group
Chemin de l'Echo 3
1213 Onex / CH
[2022/09]
Former [2017/49]Lambacher, Michael, et al
V. Füner Ebbinghaus Finck Hano
Postfach 95 01 60
81517 München / DE
Application number, filing date16744023.927.01.2016
[2017/49]
WO2016US15097
Priority number, dateUS20151460761528.01.2015         Original published format: US201514607615
[2017/49]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2016123203
Date:04.08.2016
Language:EN
[2016/31]
Type: A1 Application with search report 
No.:EP3250784
Date:06.12.2017
Language:EN
The application published by WIPO in one of the EPO official languages on 04.08.2016 takes the place of the publication of the European patent application.
[2017/49]
Type: B1 Patent specification 
No.:EP3250784
Date:02.03.2022
Language:EN
[2022/09]
Search report(s)International search report - published on:KR04.08.2016
(Supplementary) European search report - dispatched on:EP13.09.2018
ClassificationIPC:G01V1/44, E21B47/002
[2021/41]
CPC:
G01V1/44 (EP,US); E21B47/002 (EP,US); E21B47/0025 (EP,US)
Former IPC [2018/42]E21B47/00, G01V1/44
Former IPC [2017/49]E21B47/00, G01V1/40, G01V1/50
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 [2017/49]
Extension statesBANot yet paid
MENot yet paid
Validation statesMANot yet paid
MDNot yet paid
TitleGerman:VORRICHTUNGEN UND VERFAHREN ZUR AKUSTISCHEN BOHRLOCHBILDERZEUGUNG[2017/49]
English:DEVICES AND METHODS FOR DOWNHOLE ACOUSTIC IMAGING[2017/49]
French:DISPOSITIFS ET PROCÉDÉS POUR L'IMAGERIE ACOUSTIQUE DE FOND DE TROU[2017/49]
Entry into regional phase21.08.2017National basic fee paid 
21.08.2017Search fee paid 
21.08.2017Designation fee(s) paid 
21.08.2017Examination fee paid 
Examination procedure21.08.2017Examination requested  [2017/49]
21.08.2017Date on which the examining division has become responsible
01.04.2019Amendment by applicant (claims and/or description)
23.09.2021Communication of intention to grant the patent
10.01.2022Fee for grant paid
10.01.2022Fee for publishing/printing paid
10.01.2022Receipt of the translation of the claim(s)
Opposition(s)05.12.2022No opposition filed within time limit [2023/06]
Fees paidRenewal fee
15.01.2018Renewal fee patent year 03
24.01.2019Renewal fee patent year 04
21.01.2020Renewal fee patent year 05
20.01.2021Renewal fee patent year 06
20.01.2022Renewal 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  TooltipCY27.01.2016
HU27.01.2016
AL02.03.2022
AT02.03.2022
CZ02.03.2022
DK02.03.2022
EE02.03.2022
ES02.03.2022
FI02.03.2022
HR02.03.2022
IT02.03.2022
LT02.03.2022
LV02.03.2022
MC02.03.2022
NL02.03.2022
PL02.03.2022
RO02.03.2022
RS02.03.2022
SE02.03.2022
SI02.03.2022
SK02.03.2022
SM02.03.2022
TR02.03.2022
BG02.06.2022
GR03.06.2022
IS02.07.2022
PT04.07.2022
[2026/04]
Former [2025/39]CY27.01.2016
HU27.01.2016
AL02.03.2022
AT02.03.2022
CZ02.03.2022
DK02.03.2022
EE02.03.2022
ES02.03.2022
FI02.03.2022
HR02.03.2022
IT02.03.2022
LT02.03.2022
LV02.03.2022
MC02.03.2022
NL02.03.2022
PL02.03.2022
RO02.03.2022
RS02.03.2022
SE02.03.2022
SI02.03.2022
SK02.03.2022
SM02.03.2022
BG02.06.2022
GR03.06.2022
IS02.07.2022
PT04.07.2022
Former [2025/36]CY27.01.2016
AL02.03.2022
AT02.03.2022
CZ02.03.2022
DK02.03.2022
EE02.03.2022
ES02.03.2022
FI02.03.2022
HR02.03.2022
IT02.03.2022
LT02.03.2022
LV02.03.2022
MC02.03.2022
NL02.03.2022
PL02.03.2022
RO02.03.2022
RS02.03.2022
SE02.03.2022
SI02.03.2022
SK02.03.2022
SM02.03.2022
BG02.06.2022
GR03.06.2022
IS02.07.2022
PT04.07.2022
Former [2024/29]AL02.03.2022
AT02.03.2022
CZ02.03.2022
DK02.03.2022
EE02.03.2022
ES02.03.2022
FI02.03.2022
HR02.03.2022
IT02.03.2022
LT02.03.2022
LV02.03.2022
MC02.03.2022
NL02.03.2022
PL02.03.2022
RO02.03.2022
RS02.03.2022
SE02.03.2022
SI02.03.2022
SK02.03.2022
SM02.03.2022
BG02.06.2022
GR03.06.2022
IS02.07.2022
PT04.07.2022
Former [2023/35]AL02.03.2022
AT02.03.2022
CZ02.03.2022
DK02.03.2022
EE02.03.2022
ES02.03.2022
FI02.03.2022
HR02.03.2022
IT02.03.2022
LT02.03.2022
LV02.03.2022
NL02.03.2022
PL02.03.2022
RO02.03.2022
RS02.03.2022
SE02.03.2022
SI02.03.2022
SK02.03.2022
SM02.03.2022
BG02.06.2022
GR03.06.2022
IS02.07.2022
PT04.07.2022
Former [2023/10]AL02.03.2022
AT02.03.2022
CZ02.03.2022
DK02.03.2022
EE02.03.2022
ES02.03.2022
FI02.03.2022
HR02.03.2022
LT02.03.2022
LV02.03.2022
NL02.03.2022
PL02.03.2022
RO02.03.2022
RS02.03.2022
SE02.03.2022
SI02.03.2022
SK02.03.2022
SM02.03.2022
BG02.06.2022
GR03.06.2022
IS02.07.2022
PT04.07.2022
Former [2023/07]AL02.03.2022
AT02.03.2022
CZ02.03.2022
DK02.03.2022
EE02.03.2022
ES02.03.2022
FI02.03.2022
HR02.03.2022
LT02.03.2022
LV02.03.2022
NL02.03.2022
PL02.03.2022
RO02.03.2022
RS02.03.2022
SE02.03.2022
SK02.03.2022
SM02.03.2022
BG02.06.2022
GR03.06.2022
IS02.07.2022
PT04.07.2022
Former [2023/01]AL02.03.2022
AT02.03.2022
CZ02.03.2022
EE02.03.2022
ES02.03.2022
FI02.03.2022
HR02.03.2022
LT02.03.2022
LV02.03.2022
NL02.03.2022
PL02.03.2022
RO02.03.2022
RS02.03.2022
SE02.03.2022
SK02.03.2022
SM02.03.2022
BG02.06.2022
GR03.06.2022
IS02.07.2022
PT04.07.2022
Former [2022/51]AT02.03.2022
CZ02.03.2022
EE02.03.2022
ES02.03.2022
FI02.03.2022
HR02.03.2022
LT02.03.2022
LV02.03.2022
NL02.03.2022
PL02.03.2022
RO02.03.2022
RS02.03.2022
SE02.03.2022
SK02.03.2022
SM02.03.2022
BG02.06.2022
GR03.06.2022
IS02.07.2022
PT04.07.2022
Former [2022/49]AT02.03.2022
CZ02.03.2022
EE02.03.2022
ES02.03.2022
FI02.03.2022
HR02.03.2022
LT02.03.2022
LV02.03.2022
NL02.03.2022
PL02.03.2022
RO02.03.2022
RS02.03.2022
SE02.03.2022
SK02.03.2022
SM02.03.2022
BG02.06.2022
GR03.06.2022
PT04.07.2022
Former [2022/48]AT02.03.2022
CZ02.03.2022
EE02.03.2022
ES02.03.2022
FI02.03.2022
HR02.03.2022
LT02.03.2022
LV02.03.2022
NL02.03.2022
PL02.03.2022
RO02.03.2022
RS02.03.2022
SE02.03.2022
SM02.03.2022
BG02.06.2022
GR03.06.2022
PT04.07.2022
Former [2022/47]AT02.03.2022
ES02.03.2022
FI02.03.2022
HR02.03.2022
LT02.03.2022
LV02.03.2022
NL02.03.2022
PL02.03.2022
RO02.03.2022
RS02.03.2022
SE02.03.2022
SM02.03.2022
BG02.06.2022
GR03.06.2022
PT04.07.2022
Former [2022/44]ES02.03.2022
FI02.03.2022
HR02.03.2022
LT02.03.2022
LV02.03.2022
NL02.03.2022
PL02.03.2022
RS02.03.2022
SE02.03.2022
BG02.06.2022
GR03.06.2022
Former [2022/39]ES02.03.2022
FI02.03.2022
HR02.03.2022
LT02.03.2022
LV02.03.2022
PL02.03.2022
RS02.03.2022
SE02.03.2022
BG02.06.2022
GR03.06.2022
Former [2022/36]ES02.03.2022
HR02.03.2022
LT02.03.2022
LV02.03.2022
PL02.03.2022
RS02.03.2022
SE02.03.2022
BG02.06.2022
GR03.06.2022
Former [2022/35]ES02.03.2022
HR02.03.2022
LT02.03.2022
RS02.03.2022
SE02.03.2022
BG02.06.2022
Former [2022/34]ES02.03.2022
LT02.03.2022
Former [2022/33]LT02.03.2022
Documents cited:Search[Y] US2005259512  (MANDAL BATAKRISHNA et al.) [Y] 1-15 * abstract * * paragraphs [0030] , [0031] , [0034] , [0038] *
 [Y] US5995447  (MANDAL BATAKRISHNA et al.) [Y] 1-15 * abstract * * column 8, lines 46-48 * * column 22, lines 15-28 * * column 27, lines 5-17 *
International search[A] US2014177388  (D ANGELO RALPH M et al.) [A] 1-15 * See abstract, paragraphs [0024]-[0026], [0052]-[0054], and figures 1-3, 12. *
 [A] US4852069  (CLERKE EDWARD A et al.) [A] 1-15 * See abstract, column 3, line 54 - column 4, line 57, and figures 1-2. *
 [A] US5638337  (PRIEST JOHN F et al.) [A] 1-15 * See abstract, claims 1-8, and figure 5. *
 [A] WO9852033  (GAS RES INST et al.) [A] 1-15 * See abstract, claims 1-5, and figures 1-5. *
 [A] US2009205899  (GEERITS TIM W et al.) [A] 1-15 * See abstract, paragraphs [0037]-[0048], and figures 1A-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.