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The patent EP3017139 was granted to Helix Energy Solutions Group on Oct 2, 2024. The application was filed on Jun 24, 2014 under application number EP14739651A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 |
|---|---|---|---|
| BAKER HUGHES ENERGY TECHNOLOGY UK | Jun 23, 2022 | ILLINGWORTH LAW | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | US4337829 |
| EXAMINATION | WO2010129478 |
| EXAMINATION | WO2012011820 |
| INTERNATIONAL-SEARCH-REPORT | CA2165936 |
| INTERNATIONAL-SEARCH-REPORT | EP2518261 |
| INTERNATIONAL-SEARCH-REPORT | US2010025044 |
| INTERNATIONAL-SEARCH-REPORT | US2011247825 |
| INTERNATIONAL-SEARCH-REPORT | US4458945 |
| INTERNATIONAL-SEARCH-REPORT | WO0001922 |
| INTERNATIONAL-SEARCH-REPORT | WO2006099316 |
| OPPOSITION | WO2007027080 |
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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Nov 3, 2021
Sep 23, 2021
Decision to grant a European patent
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Sep 3, 2021
(Electronic) Receipt
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Sep 3, 2021
Filing of the translations of the claims
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Sep 3, 2021
French translation of claims
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Sep 3, 2021
German translation of the claims
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May 25, 2021
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Text intended for grant (clean copy)
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May 25, 2021
May 3, 2021
Intention to grant (signatures)
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Nov 19, 2020
(Electronic) Receipt
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Nov 19, 2020
Letter accompanying subsequently filed items
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Nov 19, 2020
Jul 31, 2020
Annex to the communication
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Jul 31, 2020
Communication from the Examining Division
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Apr 7, 2020
(Electronic) Receipt
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Apr 7, 2020
Amended claims with annotations
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Apr 7, 2020
Claims
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Apr 7, 2020
Letter accompanying subsequently filed items
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Apr 7, 2020
Mar 4, 2020
Annex to the communication
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Mar 4, 2020
Communication from the Examining Division
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Nov 22, 2019
(Electronic) Receipt
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Nov 22, 2019
Amended claims with annotations
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Nov 22, 2019
Amended description with annotations
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Nov 22, 2019
Claims
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Nov 22, 2019
Description
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Nov 22, 2019
Letter accompanying subsequently filed items
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Nov 22, 2019
Jul 25, 2019
Annex to the communication
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Jul 25, 2019
Communication from the Examining Division
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Mar 14, 2019
(Electronic) Receipt
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Mar 14, 2019
Letter accompanying subsequently filed items
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Mar 14, 2019
Nov 21, 2018
Annex to the communication
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Nov 21, 2018
Communication from the Examining Division
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Nov 13, 2018
Examination started
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Aug 8, 2017
Jul 3, 2017
(Electronic) Receipt
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Jul 3, 2017
Feb 2, 2017
Apr 13, 2016
Apr 1, 2016
Mar 22, 2016
Letter which had not been notified
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Mar 10, 2016
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Patent document filed by a Third party
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Patent document filed by a Third party
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Patent document filed by a Third party
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Patent document filed by a Third party
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Patent document filed by a Third party
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Patent document filed by a Third party
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Patent document filed by a Third party
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Patent document filed by a Third party
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Feb 26, 2016
Communication to designated inventor
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Feb 26, 2016
Communication to designated inventor
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Feb 26, 2016
Feb 23, 2016
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Citation filed by a third party
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Citation filed by a third party
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Feb 15, 2016
Non-patent literature filed by a third party
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Non-patent literature filed by a third party
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Non-patent literature filed by a third party
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Feb 15, 2016
Observations by third parties
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Jan 20, 2016
(Electronic) Receipt
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Jan 20, 2016
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Amended description with annotations
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Jan 20, 2016
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Amended drawings with annotations
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Jan 20, 2016
Request for entry into the European phase
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Jan 12, 2016
Nov 4, 2015
Information on entry into European phase
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Oct 22, 2015
Published international application - A4
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Sep 1, 2015
Letter which had not been notified
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Aug 11, 2015
Aug 6, 2015
Copy of the international search report
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Aug 6, 2015
Jun 19, 2015
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Apr 16, 2015
(Electronic) Receipt
PCTISA
Dec 31, 2014
Published international application - A2
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