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The patent EP3814728 was granted to Danieli & C Officine Meccaniche on Aug 16, 2023. The application was filed on Jun 28, 2019 under application number EP19755432A. 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 |
|---|---|---|---|
| REFRACTORY | May 15, 2024 | EIBEL | ADMISSIBLE |
| REFRACTORY | May 15, 2024 | PACHER | ADMISSIBLE |
| SMS GROUP | May 15, 2024 | RICHLY & RITSCHEL PATENTANWALTE PARTG MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | JPS52117833 |
| INTERNATIONAL-SEARCH-REPORT | CN1048750 |
| INTERNATIONAL-SEARCH-REPORT | GB1174095 |
| INTERNATIONAL-SEARCH-REPORT | US2005046419 |
| INTERNATIONAL-SEARCH-REPORT | US3378620 |
| INTERNATIONAL-SEARCH-REPORT | US3409726 |
| INTERNATIONAL-SEARCH-REPORT | US5138629 |
| OPPOSITION | CN1048750 |
| OPPOSITION | CN1536592 |
| OPPOSITION | CN203572253U |
| OPPOSITION | DE102016219261 |
| OPPOSITION | DE102018131849 |
| OPPOSITION | DE2648575 |
| OPPOSITION | DE2651221 |
| OPPOSITION | DE2757785 |
| OPPOSITION | DE3427563 |
| OPPOSITION | DE3602498 |
| OPPOSITION | DE69320564T |
| OPPOSITION | DE974828 |
| OPPOSITION | EP0103534 |
| OPPOSITION | EP0115258 |
| OPPOSITION | EP2568265 |
| OPPOSITION | EP3326735 |
| OPPOSITION | FR2619905 |
| OPPOSITION | GB1143910 |
| OPPOSITION | GB1174095 |
| OPPOSITION | GB1585496 |
| OPPOSITION | JP2925727B |
| OPPOSITION | JPH04203887 |
| OPPOSITION | JPH04238661 |
| OPPOSITION | JPS52117833 |
| OPPOSITION | KR100955528B |
| OPPOSITION | RU2287782 |
| OPPOSITION | RU2517771 |
| OPPOSITION | US2005046419 |
| OPPOSITION | US3378620 |
| OPPOSITION | US3409726 |
| OPPOSITION | US4075890 |
| OPPOSITION | US4122392 |
| OPPOSITION | US4138888 |
| OPPOSITION | US5138629 |
| OPPOSITION | WO2006089869 |
| OPPOSITION | WO2007009861 |
| OPPOSITION | WO2013034918 |
| OPPOSITION | WO2013163983 |
| OPPOSITION | WO2013181675 |
| OPPOSITION | WO2017089396 |
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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Decision to grant a European patent
Search/Exam
Jul 7, 2023
(Electronic) Receipt
Search/Exam
Jul 7, 2023
Filing of the translations of the claims
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Jul 7, 2023
French translation of claims
Search/Exam
Jul 7, 2023
German translation of the claims
Search/Exam
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Intention to grant (signatures)
Search/Exam
Mar 16, 2023
Text intended for grant (clean copy)
Search/Exam
Mar 16, 2023
Feb 15, 2023
Examination started
Search/Exam
Sep 14, 2021
Priority search results copy provided by EPO
Search/Exam
Aug 5, 2021
(Electronic) Receipt
Search/Exam
Aug 5, 2021
Aug 5, 2021
Amended claims with annotations
Search/Exam
Aug 5, 2021
Amendments received before examination
Search/Exam
Aug 5, 2021
Letter accompanying subsequently filed items
Search/Exam
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Communication to designated inventor
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Communication to designated inventor
Search/Exam
Feb 3, 2021
Communication to designated inventor
Search/Exam
Jan 27, 2021
(Electronic) Receipt
Search/Exam
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Amended description with annotations
Search/Exam
Jan 27, 2021
Request for entry into the European phase
Search/Exam
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Information on entry into European phase
Search/Exam
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Notification of the recording of a change
Search/Exam
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Copy of the international search report
Search/Exam
Jan 2, 2020
Published international application - A1
Search/Exam
Oct 24, 2019
ISR: cited documents
PCTISA
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Abstract
PCTISA
Aug 20, 2019
Annex
PCTISA
Aug 20, 2019
Claims
PCTISA
Aug 20, 2019
Description
PCTISA
Aug 20, 2019
Drawings
PCTISA
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