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The patent EP3429918 was granted to Oceaneering on Nov 4, 2020. The application was filed on Mar 17, 2017 under application number EP17770870A. The patent is currently recorded with a legal status of "Revoked".

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 |
|---|---|---|---|
| EQUINOR ENERGY | Aug 4, 2021 | WHITE | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | US2002040783 |
| INTERNATIONAL-SEARCH-REPORT | US2015112513 |
| INTERNATIONAL-SEARCH-REPORT | US2015307173 |
| INTERNATIONAL-SEARCH-REPORT | US2015343317 |
| INTERNATIONAL-SEARCH-REPORT | US5995882 |
| INTERNATIONAL-SEARCH-REPORT | WO2013050411 |
| OPPOSITION | KR101258955B |
| OPPOSITION | US2002040783 |
| OPPOSITION | US2015112513 |
| OPPOSITION | US6223675 |
| OPPOSITION | WO2013050411 |
| OTHER | EP1218239 |
| OTHER | GB2523388 |
| OTHER | US2015307173 |
| OTHER | US2017026085 |
| OTHER | WO2013050411 |
| SEARCH | US2007024234 |
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.
Date
Description
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Sep 12, 2025
Refund of fees
Search/Exam
Sep 10, 2025
Sep 10, 2025
Sep 10, 2025
Sep 10, 2025
Sep 5, 2025
Sep 4, 2025
(Electronic) Receipt
Appeal
Sep 4, 2025
Sep 4, 2025
Withdrawal of an appeal
Appeal
May 9, 2025
May 9, 2025
May 9, 2025
May 9, 2025
Apr 25, 2025
Apr 25, 2025
Apr 22, 2025
(Electronic) Receipt
Appeal
Apr 22, 2025
Apr 22, 2025
Apr 17, 2025
(Electronic) Receipt
Appeal
Apr 17, 2025
Apr 17, 2025
Mar 20, 2025
Mar 20, 2025
Mar 4, 2025
Feb 21, 2025
(Electronic) Receipt
Appeal
Feb 21, 2025
Feb 21, 2025
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Dec 19, 2024
(Electronic) Receipt
Appeal
Dec 19, 2024
Dec 19, 2024
Dec 6, 2024
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Dec 3, 2024
Jul 19, 2024
Jul 12, 2024
(Electronic) Receipt
Appeal
Jul 12, 2024
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May 23, 2024
Sep 29, 2023
Sep 18, 2023
(Electronic) Receipt
Appeal
Sep 18, 2023
Sep 18, 2023
Reply to appeal
Appeal
May 8, 2023
Apr 26, 2023
(Electronic) Receipt
Appeal
Apr 26, 2023
Apr 26, 2023
Apr 26, 2023
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Claims
Appeal
Apr 26, 2023
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Feb 23, 2023
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Feb 16, 2023
(Electronic) Receipt
Appeal
Feb 16, 2023
Feb 16, 2023
Notice of appeal
Appeal
Dec 16, 2022
Dec 16, 2022
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Means of redress
OPPO
Dec 16, 2022
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General enquiry
OPPO
Dec 12, 2022
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Nov 16, 2020
Oct 8, 2020
Decision to grant a European patent
Search/Exam
Sep 29, 2020
(Electronic) Receipt
Search/Exam
Sep 29, 2020
Filing of the translations of the claims
Search/Exam
Sep 29, 2020
French translation of claims
Search/Exam
Sep 29, 2020
German translation of the claims
Search/Exam
Sep 29, 2020
Letter accompanying subsequently filed items
Search/Exam
Jun 12, 2020
Jun 12, 2020
Jun 12, 2020
Intention to grant (signatures)
Search/Exam
Jun 12, 2020
Text intended for grant (clean copy)
Search/Exam
Jun 12, 2020
Apr 28, 2020
Examination started
Search/Exam
Mar 12, 2020
Feb 27, 2020
(Electronic) Receipt
Search/Exam
Feb 27, 2020
Feb 27, 2020
Amended claims with annotations
Search/Exam
Feb 27, 2020
Feb 27, 2020
Amended description with annotations
Search/Exam
Feb 27, 2020
Amendments received before examination
Search/Exam
Feb 27, 2020
Letter accompanying subsequently filed items
Search/Exam
Feb 25, 2020
Letter accompanying subsequently filed items
Search/Exam
Feb 25, 2020
Aug 22, 2019
Aug 5, 2019
Aug 5, 2019
European search opinion
Search/Exam
Aug 5, 2019
Information on Search Strategy
Search/Exam
Aug 5, 2019
Supplementary European search report
Search/Exam
Jul 24, 2019
Search started
Search/Exam
Apr 17, 2019
(Electronic) Receipt
Search/Exam
Apr 17, 2019
Apr 17, 2019
Amended claims with annotations
Search/Exam
Apr 17, 2019
Amendments received before examination
Search/Exam
Apr 17, 2019
Letter accompanying subsequently filed items
Search/Exam
Jan 4, 2019
Dec 4, 2018
Nov 22, 2018
Letter which had not been notified
Search/Exam
Nov 8, 2018
Nov 5, 2018
Oct 23, 2018
Communication to designated inventor
Search/Exam
Oct 23, 2018
Communication to designated inventor
Search/Exam
Oct 23, 2018
Communication to designated inventor
Search/Exam
Oct 23, 2018
Communication to designated inventor
Search/Exam
Oct 15, 2018
Oct 12, 2018
Oct 9, 2018
Oct 9, 2018
Oct 4, 2018
Sep 7, 2018
(Electronic) Receipt
Search/Exam
Sep 7, 2018
Request for entry into the European phase
Search/Exam
Aug 1, 2018
Information on entry into European phase
Search/Exam
Sep 28, 2017
Copy of the international search report
Search/Exam
Sep 28, 2017
Sep 28, 2017
Published international application - A1
Search/Exam