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The patent EP3101224 was granted to Schlumberger on Jul 12, 2023. The application was filed on Jun 5, 2015 under application number EP15290150A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.
| Company | Opposition Date | Representative | Opposition Status |
|---|---|---|---|
| AA THORNTON | Apr 12, 2024 | BONE | ADMISSIBLE |
| VENNER SHIPLEY | Apr 12, 2024 | WATSON | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | US2008253228 |
| OPPOSITION | US2009289808 |
| OPPOSITION | US2013197955 |
| OPPOSITION | US2014269188 |
| OPPOSITION | US5592438 |
| OPPOSITION | WO2012131601 |
| OPPOSITION | WO2013079928 |
| OPPOSITION | WO2014100262 |
| OPPOSITION | WO2014114344 |
| SEARCH | US2008253228 |
| SEARCH | US2012249338 |
| SEARCH | WO0029717 |
The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.
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Jul 25, 2023
Jun 15, 2023
Decision to grant a European patent
Search/Exam
May 31, 2023
(Electronic) Receipt
Search/Exam
May 31, 2023
Filing of the translations of the claims
Search/Exam
May 31, 2023
French translation of claims
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May 31, 2023
German translation of the claims
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Feb 8, 2023
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Intention to grant (signatures)
Search/Exam
Feb 8, 2023
Text intended for grant (clean copy)
Search/Exam
Feb 8, 2023
Dec 23, 2022
Dec 6, 2022
(Electronic) Receipt
Search/Exam
Dec 6, 2022
Amended claims with annotations
Search/Exam
Dec 6, 2022
Amended claims with annotations
Search/Exam
Dec 6, 2022
Claims
Search/Exam
Dec 6, 2022
Claims
Search/Exam
Dec 6, 2022
Description
Search/Exam
Dec 6, 2022
Letter accompanying subsequently filed items
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Dec 6, 2022
May 30, 2022
Annex to the communication
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May 30, 2022
Summons to attend oral proceedings
Search/Exam
Mar 16, 2022
Payment submission rejected
Search/Exam
Apr 21, 2020
(Electronic) Receipt
Search/Exam
Apr 21, 2020
Amended claims with annotations
Search/Exam
Apr 21, 2020
Claims
Search/Exam
Apr 21, 2020
Letter accompanying subsequently filed items
Search/Exam
Apr 21, 2020
Mar 3, 2020
Feb 18, 2020
(Electronic) Receipt
Search/Exam
Feb 18, 2020
Oct 8, 2019
Annex to the communication
Search/Exam
Oct 8, 2019
Communication from the Examining Division
Search/Exam
Mar 13, 2019
Decision to allow further processing
Search/Exam
Feb 26, 2019
(Electronic) Receipt
Search/Exam
Feb 26, 2019
Amended claims with annotations
Search/Exam
Feb 26, 2019
Amended description with annotations
Search/Exam
Feb 26, 2019
Claims
Search/Exam
Feb 26, 2019
Description
Search/Exam
Feb 26, 2019
Letter accompanying subsequently filed items
Search/Exam
Feb 26, 2019
Jan 2, 2019
Dec 13, 2018
(Electronic) Receipt
Search/Exam
Dec 13, 2018
Sep 10, 2018
Letter concerning fees and payments
Search/Exam
Aug 6, 2018
Annex to the communication
Search/Exam
Aug 6, 2018
Communication from the Examining Division
Search/Exam
Jul 30, 2018
Examination started
Search/Exam
Jul 4, 2018
Submission concerning representation
Search/Exam
Jun 12, 2018
Submission concerning representation
Search/Exam
Nov 28, 2017
Nov 20, 2017
Annexes in respect of a client data request
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Nov 20, 2017
Nov 16, 2017
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General authorisation
Search/Exam
Nov 2, 2017
Oct 26, 2017
Decision to allow further processing
Search/Exam
Oct 3, 2017
(Electronic) Receipt
Search/Exam
Oct 3, 2017
Oct 3, 2017
Amended claims with annotations
Search/Exam
Oct 3, 2017
Oct 3, 2017
Amended description with annotations
Search/Exam
Oct 3, 2017
Amendments received before examination
Search/Exam
Oct 3, 2017
Request for further processing
Search/Exam
Jul 24, 2017
Jun 7, 2017
(Electronic) Receipt
Search/Exam
Jun 7, 2017
Letter accompanying subsequently filed items
Search/Exam
Dec 12, 2016
Nov 9, 2016
Notification of forthcoming publication
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Mar 24, 2016
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European search opinion
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Mar 24, 2016
European search report
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Mar 24, 2016
Information on Search Strategy
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Nov 30, 2015
Nov 30, 2015
Information on Search Strategy
Search/Exam
Nov 30, 2015
Partial European search report
Search/Exam
Nov 23, 2015
Modified abstract
Search/Exam
Nov 18, 2015
Search started
Search/Exam
Sep 7, 2015
Communication to designated inventor
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Sep 7, 2015
Communication to designated inventor
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Sep 2, 2015
Notice on debiting of fees
Search/Exam
Jun 26, 2015
Payment of fees and costs
Search/Exam
Jun 5, 2015
Abstract
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Jun 5, 2015
Abstract
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Jun 5, 2015
Claims
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Jun 5, 2015
Claims
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Jun 5, 2015
Description
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Jun 5, 2015
Description
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Jun 5, 2015
Designation of inventor
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Jun 5, 2015
Designation of inventor
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Jun 5, 2015
Drawings
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Jun 5, 2015
Drawings
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Jun 5, 2015
Matter concerning the application
Search/Exam
Jun 5, 2015
Matter concerning the application
Search/Exam
Jun 5, 2015
Payment of fees and costs
Search/Exam
Jun 5, 2015
Request for grant of a European patent
Search/Exam
Jun 5, 2015
Request for grant of a European patent
Search/Exam