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The patent EP3516966 was granted to Rimfrost on Nov 30, 2022. The application was filed on Sep 14, 2009 under application number EP19155321A. 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 |
|---|---|---|---|
| AKER BIOMARINE UNDERSTORY | Aug 29, 2023 | CARPMAELS & RANSFORD | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | US3924005 |
| OTHER | US6555155 |
| OTHER | WO2010030193 |
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 4, 2025
Nov 4, 2025
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Oct 31, 2025
(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Reply to appeal
Appeal
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Jun 17, 2025
(Electronic) Receipt
Appeal
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Apr 14, 2025
(Electronic) Receipt
Appeal
Apr 14, 2025
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Notice of appeal
Appeal
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Means of redress
Search/Exam
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Dec 13, 2022
Nov 4, 2022
Decision to grant a European patent
Search/Exam
Oct 25, 2022
(Electronic) Receipt
Search/Exam
Oct 25, 2022
Filing of the translations of the claims
Search/Exam
Oct 25, 2022
French translation of claims
Search/Exam
Oct 25, 2022
German translation of the claims
Search/Exam
Oct 25, 2022
Letter accompanying subsequently filed items
Search/Exam
Jun 27, 2022
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Intention to grant (signatures)
Search/Exam
Jun 27, 2022
Text intended for grant (clean copy)
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Jun 27, 2022
Apr 28, 2022
(Electronic) Receipt
Search/Exam
Apr 28, 2022
Amended description with annotations
Search/Exam
Apr 28, 2022
Description
Search/Exam
Apr 28, 2022
Letter accompanying subsequently filed items
Search/Exam
Apr 28, 2022
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Dec 21, 2021
Annex to the communication
Search/Exam
Dec 21, 2021
Communication from the Examining Division
Search/Exam
Dec 6, 2021
Dec 1, 2021
Non-patent literature filed by a third party
Search/Exam
Dec 1, 2021
Non-patent literature filed by a third party
Search/Exam
Dec 1, 2021
Observations by third parties
Search/Exam
Nov 2, 2021
(Electronic) Receipt
Search/Exam
Nov 2, 2021
Amended claims with annotations
Search/Exam
Nov 2, 2021
Amended description with annotations
Search/Exam
Nov 2, 2021
Claims
Search/Exam
Nov 2, 2021
Description
Search/Exam
Nov 2, 2021
Letter accompanying subsequently filed items
Search/Exam
Nov 2, 2021
Aug 26, 2021
Aug 20, 2021
Non-patent literature filed by a third party
Search/Exam
Aug 20, 2021
Non-patent literature filed by a third party
Search/Exam
Aug 20, 2021
Observations by third parties
Search/Exam
Jul 2, 2021
Annex to the communication
Search/Exam
Jul 2, 2021
Communication from the Examining Division
Search/Exam
Jun 24, 2021
Examination started
Search/Exam
May 7, 2021
(Electronic) Receipt
Search/Exam
May 7, 2021
Letter accompanying subsequently filed items
Search/Exam
May 7, 2021
Mar 24, 2021
Mar 19, 2021
Observations by third parties
Search/Exam
Jul 8, 2020
Jun 29, 2020
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(Electronic) Receipt
Search/Exam
Feb 27, 2020
General authorisation
Search/Exam
Feb 27, 2020
Letter accompanying subsequently filed items
Search/Exam
Feb 27, 2020
Jan 20, 2020
(Electronic) Receipt
Search/Exam
Jan 20, 2020
Jan 20, 2020
Amended claims with annotations
Search/Exam
Jan 20, 2020
Amendments received before examination
Search/Exam
Jan 20, 2020
Letter accompanying subsequently filed items
Search/Exam
Nov 18, 2019
Submission concerning representation
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Aug 5, 2019
Jul 3, 2019
Notification of forthcoming publication
Search/Exam
Jun 12, 2019
Refund of fees
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Jun 11, 2019
Jun 11, 2019
European search opinion
Search/Exam
Jun 11, 2019
European search report
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Jun 11, 2019
Information on Search Strategy
Search/Exam
Mar 29, 2019
Communication to designated inventor
Search/Exam
Mar 29, 2019
Communication to designated inventor
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Mar 29, 2019
Communication to designated inventor
Search/Exam
Feb 4, 2019
Abstract
Search/Exam
Feb 4, 2019
Feb 4, 2019
Claims
Search/Exam
Feb 4, 2019
Description
Search/Exam
Feb 4, 2019
Designation of inventor
Search/Exam
Feb 4, 2019
Drawings
Search/Exam
Feb 4, 2019
Priority search results
Search/Exam
Feb 4, 2019
Request for grant of a European patent
Search/Exam
Jun 29, 2018
Priority search results
Search/Exam
Jun 29, 2018
Apr 13, 2010