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The patent EP3898030 was granted to Vesuvius Group on Aug 9, 2023. The application was originally filed on Dec 17, 2019 under application number EP19820778A. 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 8, 2024 | LUCHS | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE102009050216 |
| DESCRIPTION | EP2500150 |
| DESCRIPTION | EP2547474 |
| DESCRIPTION | JPH0466268 |
| DESCRIPTION | JPH0760434 |
| DESCRIPTION | JPH0819853 |
| DESCRIPTION | US2010017027 |
| DESCRIPTION | US2017045106 |
| DESCRIPTION | US311902 |
| DESCRIPTION | US506328 |
| DESCRIPTION | US5645793 |
| DESCRIPTION | WO2017129563 |
| INTERNATIONAL-SEARCH-REPORT | DE102009050216 |
| INTERNATIONAL-SEARCH-REPORT | JPH0466268 |
| INTERNATIONAL-SEARCH-REPORT | JPH0760434 |
| INTERNATIONAL-SEARCH-REPORT | JPH0819853 |
| INTERNATIONAL-SEARCH-REPORT | US2010017027 |
| INTERNATIONAL-SEARCH-REPORT | US5645793 |
| OPPOSITION | JPH07132484 |
| OPPOSITION | WO2008025562 |
| OPPOSITION | WO2018074424 |
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
Oct 29, 2025
(Electronic) Receipt
Appeal
Oct 29, 2025
Oct 29, 2025
Oct 29, 2025
Sep 2, 2025
Sep 2, 2025
Aug 27, 2025
(Electronic) Receipt
Appeal
Aug 27, 2025
Aug 27, 2025
Notice of appeal
Appeal
Jul 2, 2025
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Means of redress
Search/Exam
Jul 2, 2025
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Aug 22, 2023
Jul 13, 2023
Decision to grant a European patent
Search/Exam
Jun 30, 2023
(Electronic) Receipt
Search/Exam
Jun 30, 2023
Filing of the translations of the claims
Search/Exam
Jun 30, 2023
French translation of claims
Search/Exam
Jun 30, 2023
German translation of the claims
Search/Exam
Jun 30, 2023
Letter accompanying subsequently filed items
Search/Exam
Jun 28, 2023
(Electronic) Receipt
Search/Exam
Jun 28, 2023
Filing of the translations of the claims
Search/Exam
Jun 28, 2023
Letter accompanying subsequently filed items
Search/Exam
Jun 28, 2023
Translation of the claims
Search/Exam
Jun 28, 2023
Translation of the claims
Search/Exam
Mar 3, 2023
Mar 3, 2023
Mar 3, 2023
Mar 3, 2023
Intention to grant (signatures)
Search/Exam
Mar 3, 2023
Text intended for grant (clean copy)
Search/Exam
Mar 3, 2023
Jan 23, 2023
Examination started
Search/Exam
Oct 27, 2021
Jul 29, 2021
Jul 28, 2021
Jul 21, 2021
Priority search results copy provided by EPO
Search/Exam
Jul 5, 2021
Jun 24, 2021
(Electronic) Receipt
Search/Exam
Jun 24, 2021
Request for entry into the European phase
Search/Exam
Apr 30, 2021
Information on entry into European phase
Search/Exam
Jul 13, 2020
Jun 25, 2020
Copy of the international search report
Search/Exam
Jun 25, 2020
Published international application - A1
Search/Exam
Apr 8, 2020
ISR: cited documents
PCTISA
Apr 8, 2020
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Dec 20, 2019
Dec 17, 2019
(Electronic) Receipt
PCTRO
Dec 17, 2019
Abstract
PCTRO
Dec 17, 2019
Claims
PCTRO
Dec 17, 2019
Description
PCTRO
Dec 17, 2019
Dec 17, 2019
Drawings
PCTRO
Dec 17, 2019