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The patent EP3964342 was granted to DA MA on Feb 22, 2023. The application was filed on Jun 23, 2021 under application number EP21181250A. 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 |
|---|---|---|---|
| GRUPPO MECCANICHE LUCIANI | Nov 20, 2023 | CUTROPIA | ADMISSIBLE |
| GRUPPO MECCANICHE LUCIANI | Nov 20, 2023 | HOFFMANN EITLE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | IT20200021172 |
| DESCRIPTION | EP2520422 |
| DESCRIPTION | ITMC20110024 |
| OPPOSITION | CN103128978 |
| OPPOSITION | EP0406753 |
| OPPOSITION | EP0802040 |
| OPPOSITION | EP2520422 |
| OPPOSITION | ITMI910059 |
| OPPOSITION | KR20160091103 |
| OPPOSITION | US2006125134 |
| OPPOSITION | US4440377 |
| OPPOSITION | WO2008019980 |
| OPPOSITION | WO2009084772 |
| SEARCH | EP2520422 |
| SEARCH | EP3057784 |
| SEARCH | WO2010045144 |
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 19, 2025
(Electronic) Receipt
Appeal
Dec 19, 2025
Notice of appeal
Appeal
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Means of redress
OPPO
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Authorisation
OPPO
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Authorisation
OPPO
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Mar 7, 2023
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Decision to grant a European patent
Search/Exam
Jan 12, 2023
(Electronic) Receipt
Search/Exam
Jan 12, 2023
Filing of the translations of the claims
Search/Exam
Jan 12, 2023
French translation of claims
Search/Exam
Jan 12, 2023
German translation of the claims
Search/Exam
Jan 12, 2023
Letter accompanying subsequently filed items
Search/Exam
Sep 9, 2022
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Intention to grant (signatures)
Search/Exam
Sep 9, 2022
Text intended for grant (clean copy)
Search/Exam
Sep 9, 2022
Jul 8, 2022
Examination started
Search/Exam
Mar 14, 2022
Feb 9, 2022
Notification of forthcoming publication
Search/Exam
Oct 13, 2021
Refund of fees
Search/Exam
Oct 8, 2021
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European search opinion
Search/Exam
Oct 8, 2021
European search report
Search/Exam
Oct 8, 2021
Information on Search Strategy
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Aug 30, 2021
Letter concerning the priority
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Aug 30, 2021
Priority document
Search/Exam
Jun 23, 2021
Abstract
Search/Exam
Jun 23, 2021
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Claims
Search/Exam
Jun 23, 2021
Description
Search/Exam
Jun 23, 2021
Designation of inventor
Search/Exam
Jun 23, 2021
Drawings
Search/Exam
Jun 23, 2021
Request for grant of a European patent
Search/Exam
Jun 23, 2021
Submission concerning representation
Search/Exam
Jun 10, 2021
Priority search results copy provided by EPO
Search/Exam