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The patent EP3983313 was granted to Sarong Societa PER Azioni on Jul 6, 2022. The application was filed on Feb 18, 2021 under application number EP21711959A. 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 |
|---|---|---|---|
| DUALIT | Apr 6, 2023 | JENSEN & SON | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | EP1654966 |
| INTERNATIONAL-SEARCH-REPORT | WO2019092144 |
| OPPOSITION | EP1654966 |
| OPPOSITION | US2011297005 |
| OPPOSITION | WO2007113100 |
| OPPOSITION | WO2010137956 |
| OPPOSITION | WO2015101394 |
| OPPOSITION | WO2016186488 |
| OPPOSITION | WO2019092144 |
| OPPOSITION | WO2020225390 |
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 23, 2025
Dec 1, 2025
Oct 14, 2025
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Oct 9, 2025
(Electronic) Receipt
Appeal
Oct 9, 2025
Annex
Appeal
Oct 9, 2025
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(Electronic) Receipt
Appeal
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Reply to appeal
Appeal
Jul 22, 2025
(Electronic) Receipt
Appeal
Jul 22, 2025
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Jul 1, 2025
Jun 10, 2025
(Electronic) Receipt
Appeal
Jun 10, 2025
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Authorisation
Appeal
Jun 10, 2025
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(Electronic) Receipt
Appeal
Apr 22, 2025
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(Electronic) Receipt
Appeal
Feb 18, 2025
Notice of appeal
Appeal
Dec 19, 2024
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Means of redress
OPPO
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Decision to grant a European patent
Search/Exam
May 27, 2022
(Electronic) Receipt
Search/Exam
May 27, 2022
Filing of the translations of the claims
Search/Exam
May 27, 2022
French translation of claims
Search/Exam
May 27, 2022
German translation of the claims
Search/Exam
May 13, 2022
Change to the inventor details
Search/Exam
May 10, 2022
(Electronic) Receipt
Search/Exam
May 10, 2022
Letter accompanying subsequently filed items
Search/Exam
May 10, 2022
Letter concerning the inventor
Search/Exam
May 5, 2022
Notification of the recording of a change
Search/Exam
May 5, 2022
Notification of the recording of a change
Search/Exam
Mar 23, 2022
Mar 17, 2022
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Intention to grant (signatures)
Search/Exam
Mar 17, 2022
Text intended for grant (clean copy)
Search/Exam
Mar 17, 2022
Feb 24, 2022
Examination started
Search/Exam
Jan 26, 2022
Jan 13, 2022
(Electronic) Receipt
Search/Exam
Jan 13, 2022
(Electronic) Receipt
Search/Exam
Jan 13, 2022
Jan 13, 2022
Amended claims with annotations
Search/Exam
Jan 13, 2022
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Amended description with annotations
Search/Exam
Jan 13, 2022
Amendments received before examination
Search/Exam
Jan 13, 2022
Letter accompanying subsequently filed items
Search/Exam
Jan 13, 2022
Request for entry into the European phase
Search/Exam
Sep 13, 2021
Sep 13, 2021
Aug 26, 2021
Copy of the international search report
Search/Exam
Aug 26, 2021
Published international application - A1
Search/Exam
Jun 24, 2021
Jun 21, 2021
ISR: cited documents
PCTISA
Jun 21, 2021
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Mar 26, 2021
Mar 18, 2021
Abstract
PCTISA
Mar 18, 2021
Claims
PCTISA
Mar 18, 2021
Description
PCTISA
Mar 18, 2021
Drawings
PCTISA
Mar 18, 2021
Mar 18, 2021
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Jan 12, 2021
Priority search results copy provided by EPO
Search/Exam
Nov 23, 2020
Priority search results copy provided by EPO
Search/Exam