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The patent EP3829054 was granted to Ocean SUN on May 28, 2025. The application was filed on May 31, 2017 under application number EP21151660A. 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 |
|---|---|---|---|
| INSEANERGY | Feb 25, 2023 | ACAPO | WITHDRAWN |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE102011056284 |
| DESCRIPTION | DE102012108740 |
| DESCRIPTION | DE19857174 |
| DESCRIPTION | DE3919125 |
| DESCRIPTION | EP2299499 |
| DESCRIPTION | KR101013316B |
| DESCRIPTION | KR101612832B |
| DESCRIPTION | KR20110004967 |
| DESCRIPTION | US2010307566 |
| DESCRIPTION | US2012242275 |
| DESCRIPTION | US2014224165 |
| DESCRIPTION | US2015162866 |
| DESCRIPTION | WO2014131782 |
| EXAMINATION | EP2299499 |
| OPPOSITION | JP2007173710 |
| OPPOSITION | NO20160927 |
| OPPOSITION | US2010307566 |
| OPPOSITION | US2016156304 |
| SEARCH | DE102011056284 |
| SEARCH | DE102012108740 |
| SEARCH | DE19522215 |
| SEARCH | DE19857174 |
| SEARCH | DE3919125 |
| SEARCH | EP2299499 |
| SEARCH | US2010307566 |
| SEARCH | WO2014131782 |
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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Description
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OPPO
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Refund of fees
Search/Exam
Apr 29, 2022
Decision to grant a European patent
Search/Exam
Apr 21, 2022
Apr 13, 2022
(Electronic) Receipt
Search/Exam
Apr 13, 2022
Filing of the translations of the claims
Search/Exam
Apr 13, 2022
French translation of claims
Search/Exam
Apr 13, 2022
German translation of the claims
Search/Exam
Apr 13, 2022
Letter accompanying subsequently filed items
Search/Exam
Mar 10, 2022
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Intention to grant (signatures)
Search/Exam
Mar 10, 2022
Text intended for grant (clean copy)
Search/Exam
Mar 10, 2022
Nov 8, 2021
(Electronic) Receipt
Search/Exam
Nov 8, 2021
Amended claims with annotations
Search/Exam
Nov 8, 2021
Amended description with annotations
Search/Exam
Nov 8, 2021
Claims
Search/Exam
Nov 8, 2021
Description
Search/Exam
Nov 8, 2021
Letter accompanying subsequently filed items
Search/Exam
Nov 8, 2021
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Annex to the communication
Search/Exam
Oct 12, 2021
Communication from the Examining Division
Search/Exam
Aug 9, 2021
(Electronic) Receipt
Search/Exam
Aug 9, 2021
Letter accompanying subsequently filed items
Search/Exam
Aug 9, 2021
Jul 16, 2021
Annex to the communication
Search/Exam
Jul 16, 2021
Communication from the Examining Division
Search/Exam
Jun 9, 2021
(Electronic) Receipt
Search/Exam
Jun 9, 2021
Letter accompanying subsequently filed items
Search/Exam
Jun 9, 2021
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Annexes in respect of a client data request
Search/Exam
Jun 7, 2021
Annexes in respect of a client data request
Search/Exam
May 14, 2021
May 7, 2021
Refund of fees
Search/Exam
May 6, 2021
Notification of forthcoming publication
Search/Exam
May 3, 2021
May 3, 2021
European search report
Search/Exam
May 3, 2021
Information on Search Strategy
Search/Exam
Apr 21, 2021
Search started
Search/Exam
Mar 10, 2021
Communication to designated inventor
Search/Exam
Jan 18, 2021
(Electronic) Receipt
Search/Exam
Jan 18, 2021
Letter accompanying subsequently filed items
Search/Exam
Jan 18, 2021
Maintenance of the application
Search/Exam
Jan 14, 2021
Abstract
Search/Exam
Jan 14, 2021
Jan 14, 2021
Claims
Search/Exam
Jan 14, 2021
Description
Search/Exam
Jan 14, 2021
Designation of inventor
Search/Exam
Jan 14, 2021
Drawings
Search/Exam
Jan 14, 2021
Matter concerning the application
Search/Exam
Jan 14, 2021
Request for grant of a European patent
Search/Exam
Nov 12, 2019
Priority search results copy provided by EPO
Search/Exam
Nov 12, 2019
Priority search results copy provided by EPO
Search/Exam
Mar 18, 2019
Feb 20, 2018