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The patent EP3312379 was granted to Trendsetter Vulcan Offshore on Nov 20, 2024. The application was filed on Jun 24, 2014 under application number EP17201707A. 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 |
|---|---|---|---|
| SUBSEADESIGN | Aug 19, 2025 | AWA NORWAY | ADMISSIBLE |
| EQUINOR ENERGY | Aug 15, 2025 | DEHNS | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | US2002189522 |
| OPPOSITION | US2003151037 |
| OPPOSITION | US2006042800 |
| OPPOSITION | US2006162933 |
| OPPOSITION | US2007017429 |
| OPPOSITION | US2010294505 |
| OPPOSITION | US2012297890 |
| OPPOSITION | US2013105171 |
| OPPOSITION | US3017934 |
| OPPOSITION | US3307624 |
| OPPOSITION | US4461460 |
| OPPOSITION | US4710061 |
| OPPOSITION | US4818146 |
| OPPOSITION | US5845893 |
| OPPOSITION | US6193441 |
| OPPOSITION | WO2008130242 |
| OPPOSITION | WO2014210026 |
| SEARCH | US2006042800 |
| SEARCH | US3017934 |
| SEARCH | US3307624 |
| SEARCH | US4818146 |
| SEARCH | US6193441 |
| SEARCH | WO2008130242 |
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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Dec 3, 2024
Oct 24, 2024
Decision to grant a European patent
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Oct 7, 2024
(Electronic) Receipt
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Oct 7, 2024
Filing of the translations of the claims
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Oct 7, 2024
French translation of claims
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Oct 7, 2024
German translation of the claims
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Oct 7, 2024
Letter accompanying subsequently filed items
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Oct 7, 2024
Letter concerning fees and payments
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Jun 7, 2024
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Jun 7, 2024
Jun 7, 2024
Intention to grant (signatures)
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Jun 7, 2024
Text intended for grant (clean copy)
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Jun 7, 2024
May 28, 2024
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May 24, 2024
May 23, 2024
(Electronic) Receipt
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May 23, 2024
Amended description with annotations
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May 23, 2024
Description
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May 23, 2024
Letter accompanying subsequently filed items
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May 23, 2024
Apr 30, 2024
(Electronic) Receipt
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Apr 30, 2024
Amended claims with annotations
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Apr 30, 2024
Amended claims with annotations
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Apr 30, 2024
Amended claims with annotations
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Apr 30, 2024
Amended claims with annotations
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Apr 30, 2024
Claims
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Apr 30, 2024
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Apr 30, 2024
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Apr 30, 2024
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Apr 30, 2024
Letter accompanying subsequently filed items
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Apr 30, 2024
Dec 22, 2023
Annex to the communication
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Dec 22, 2023
Summons to attend oral proceedings
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Sep 12, 2023
(Electronic) Receipt
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Sep 12, 2023
Letter accompanying subsequently filed items
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Sep 12, 2023
Jul 20, 2023
Jul 17, 2023
(Electronic) Receipt
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Jul 17, 2023
Letter accompanying subsequently filed items
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Jul 17, 2023
Mar 7, 2023
Annex to the communication
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Mar 7, 2023
Communication from the Examining Division
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Feb 6, 2023
Annex to the communication
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Feb 6, 2023
Consultation by telephone/in person
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Feb 6, 2023
Feb 1, 2023
(Electronic) Receipt
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Feb 1, 2023
Annex to the communication
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Feb 1, 2023
Consultation by telephone/in person
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Feb 1, 2023
Letter accompanying subsequently filed items
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Feb 1, 2023
Feb 1, 2023
Jan 6, 2023
(Electronic) Receipt
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Jan 6, 2023
Amended claims with annotations
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Jan 6, 2023
Amended claims with annotations
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Jan 6, 2023
Amended claims with annotations
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Jan 6, 2023
Amended claims with annotations
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Jan 6, 2023
Amended claims with annotations
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Jan 6, 2023
Amended claims with annotations
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Jan 6, 2023
Amended claims with annotations
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Jan 6, 2023
Amended claims with annotations
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Jan 6, 2023
Claims
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Jan 6, 2023
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Jan 6, 2023
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Jan 6, 2023
Letter accompanying subsequently filed items
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Jan 6, 2023
Jul 13, 2022
Annex to the communication
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Jul 13, 2022
Summons to attend oral proceedings
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Feb 21, 2022
(Electronic) Receipt
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Feb 21, 2022
Annex
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Feb 21, 2022
Letter accompanying subsequently filed items
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Feb 21, 2022
Dec 14, 2021
Dec 9, 2021
(Electronic) Receipt
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Dec 9, 2021
Letter accompanying subsequently filed items
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Dec 9, 2021
Aug 9, 2021
Annex to the communication
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Aug 9, 2021
Communication from the Examining Division
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Apr 21, 2021
(Electronic) Receipt
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Apr 21, 2021
Amended claims with annotations
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Apr 21, 2021
Claims
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Apr 21, 2021
Letter accompanying subsequently filed items
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Apr 21, 2021
Feb 17, 2021
Feb 12, 2021
(Electronic) Receipt
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Feb 12, 2021
Letter accompanying subsequently filed items
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Feb 12, 2021
Jan 21, 2021
Document concerning representation
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Jan 21, 2021
Document concerning representation
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Jan 21, 2021
Letter accompanying subsequently filed items
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Oct 13, 2020
Annex to the communication
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Oct 13, 2020
Communication from the Examining Division
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Jul 17, 2020
(Electronic) Receipt
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Jul 17, 2020
Amended claims with annotations
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Jul 17, 2020
Claims
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Jul 17, 2020
Letter accompanying subsequently filed items
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Jul 17, 2020
May 25, 2020
May 18, 2020
(Electronic) Receipt
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May 18, 2020
Letter accompanying subsequently filed items
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May 18, 2020
Jan 9, 2020
Annex to the communication
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Jan 9, 2020
Communication from the Examining Division
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Dec 20, 2019
Dec 20, 2019
Dec 16, 2019
Non-patent literature filed by a third party
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Dec 16, 2019
Observations by third parties
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Dec 16, 2019
Patent document filed by a Third party
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Oct 9, 2019
(Electronic) Receipt
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Oct 9, 2019
Amended claims with annotations
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Oct 9, 2019
Claims
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Oct 9, 2019
Letter accompanying subsequently filed items
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Oct 9, 2019
Aug 23, 2019
Aug 19, 2019
(Electronic) Receipt
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Aug 19, 2019
Letter accompanying subsequently filed items
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Aug 19, 2019
Aug 2, 2019
Apr 9, 2019
Annex to the communication
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Apr 9, 2019
Communication from the Examining Division
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Mar 26, 2019
(Electronic) Receipt
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Mar 26, 2019
Filing of the translations of the claims
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Mar 26, 2019
Letter accompanying subsequently filed items
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Mar 26, 2019
Translation of the claims
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Mar 26, 2019
Translation of the claims
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Jan 18, 2019
Jan 18, 2019
Jan 11, 2019
Non-patent literature filed by a third party
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Jan 11, 2019
Observations by third parties
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Jan 11, 2019
Patent document filed by a Third party
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Dec 13, 2018
Dec 13, 2018
Dec 13, 2018
Intention to grant (signatures)
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Dec 13, 2018
Text intended for grant (clean copy)
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Dec 13, 2018
Nov 26, 2018
Examination started
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Aug 31, 2018
(Electronic) Receipt
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Aug 31, 2018
Aug 31, 2018
Amended claims with annotations
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Aug 31, 2018
Aug 31, 2018
Amended description with annotations
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Aug 31, 2018
Amendments received before examination
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Aug 31, 2018
Letter accompanying subsequently filed items
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May 2, 2018
Mar 28, 2018
Notification of forthcoming publication
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Mar 28, 2018
Refund of fees
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Mar 22, 2018
Mar 22, 2018
European search opinion
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Mar 22, 2018
European search report
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Mar 22, 2018
Information on Search Strategy
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Mar 12, 2018
Search started
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Jan 5, 2018
Communication to designated inventor
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Jan 5, 2018
Communication to designated inventor
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Jan 5, 2018
Communication to designated inventor
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Jan 5, 2018
Communication to designated inventor
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Jan 5, 2018
Communication to designated inventor
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Nov 14, 2017
Abstract
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Nov 14, 2017
Nov 14, 2017
Annex
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Nov 14, 2017
Claims
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Nov 14, 2017
Description
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Nov 14, 2017
Designation of inventor
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Nov 14, 2017
Drawings
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Nov 14, 2017
Matter concerning the application
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Nov 14, 2017
Nov 14, 2017
Submission concerning representation
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Jan 20, 2015