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The patent EP3793894 was granted to Naval Group on Nov 1, 2023. The application was filed on May 16, 2019 under application number EP19723455A. 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 |
|---|---|---|---|
| CALZONI | Jul 30, 2024 | CASADEI | ADMISSIBLE |
| THYSSENKRUPP MARINE SYSTEMS | Jul 30, 2024 | THYSSENKRUPP | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | EP1468906 |
| EXAMINATION | US3863584 |
| INTERNATIONAL-SEARCH-REPORT | EP1468906 |
| INTERNATIONAL-SEARCH-REPORT | US3863584 |
| OPPOSITION | DE10317992 |
| OPPOSITION | EP0364341 |
| OPPOSITION | GB2191845 |
| OPPOSITION | RU2211171 |
| OPPOSITION | US2004169917 |
| OPPOSITION | US2015274270 |
| OPPOSITION | US2017152952 |
| OPPOSITION | US3863584 |
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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Decision to grant a European patent
Search/Exam
Sep 20, 2023
(Electronic) Receipt
Search/Exam
Sep 20, 2023
English translation of the claims
Search/Exam
Sep 20, 2023
Filing of the translations of the claims
Search/Exam
Sep 20, 2023
German translation of the claims
Search/Exam
Sep 20, 2023
Letter accompanying subsequently filed items
Search/Exam
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Intention to grant (signatures)
Search/Exam
May 24, 2023
Text intended for grant (clean copy)
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May 24, 2023
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Examination started
Search/Exam
Jul 8, 2021
(Electronic) Receipt
Search/Exam
Jul 8, 2021
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Amended claims with annotations
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Jul 8, 2021
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Amended description with annotations
Search/Exam
Jul 8, 2021
Amendments received before examination
Search/Exam
Jul 8, 2021
Letter accompanying subsequently filed items
Search/Exam
Feb 24, 2021
Jan 12, 2021
Dec 23, 2020
Communication to designated inventor
Search/Exam
Dec 18, 2020
Priority search results copy provided by EPO
Search/Exam
Dec 14, 2020
Nov 16, 2020
(Electronic) Receipt
Search/Exam
Nov 16, 2020
Request for entry into the European phase
Search/Exam
Sep 25, 2020
Information on entry into European phase
Search/Exam
Dec 9, 2019
Nov 21, 2019
Copy of the international search report
Search/Exam
Nov 21, 2019
Copy of the international search report
Search/Exam
Nov 21, 2019
Published international application - A1
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(Electronic) Receipt
PCTRO
May 16, 2019
Abstract
PCTRO
May 16, 2019
Claims
PCTRO
May 16, 2019
Description
PCTRO
May 16, 2019
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Drawings
PCTRO
May 16, 2019