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The patent EP4061552 was granted to SMS Group on Jun 28, 2023. The application was filed on Oct 21, 2020 under application number EP20797072A. 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 |
|---|---|---|---|
| NOVELIS | Mar 28, 2024 | WEICKMANN & WEICKMANN PARTMBB | ADMISSIBLE |
| PRIMETALS GERMANY | Mar 27, 2024 | METALSLINZ | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE202014011231U |
| DESCRIPTION | EP2697002 |
| DESCRIPTION | EP3089833 |
| INTERNATIONAL-SEARCH-REPORT | DE69407298T |
| INTERNATIONAL-SEARCH-REPORT | JPS63168211 |
| INTERNATIONAL-SEARCH-REPORT | US6220067 |
| OPPOSITION | DE102009030792 |
| OPPOSITION | DE19823986 |
| OPPOSITION | DE202014011231U |
| OPPOSITION | DE2446009 |
| OPPOSITION | EP2428288 |
| OPPOSITION | EP2431104 |
| OPPOSITION | EP2662158 |
| OPPOSITION | EP3089833 |
| OPPOSITION | JP2006281232 |
| OPPOSITION | JP2013220471 |
| OPPOSITION | JPH04313407 |
| OPPOSITION | US10040107 |
| OPPOSITION | US2004205951 |
| OPPOSITION | US3940598 |
| OPPOSITION | US4274273 |
| OPPOSITION | WO2004076086 |
| OPPOSITION | WO2010049280 |
| OPPOSITION | WO2011138067 |
| OPPOSITION | WO2012034884 |
| OPPOSITION | WO2013000677 |
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 12, 2025
Dec 12, 2025
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Dec 8, 2025
(Electronic) Receipt
Appeal
Dec 8, 2025
Notice of appeal
Appeal
Dec 8, 2025
Notice of appeal
Appeal
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Means of redress
OPPO
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Authorisation
OPPO
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Annexes in respect of a client data request
Search/Exam
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Jul 11, 2023
Jun 2, 2023
Decision to grant a European patent
Search/Exam
May 23, 2023
(Electronic) Receipt
Search/Exam
May 23, 2023
English translation of the claims
Search/Exam
May 23, 2023
Filing of the translations of the claims
Search/Exam
May 23, 2023
French translation of claims
Search/Exam
May 23, 2023
Letter accompanying subsequently filed items
Search/Exam
Mar 1, 2023
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Intention to grant (signatures)
Search/Exam
Jan 19, 2023
Text intended for grant (clean copy)
Search/Exam
Jan 19, 2023
Dec 12, 2022
Examination started
Search/Exam
Sep 12, 2022
(Electronic) Receipt
Search/Exam
Sep 12, 2022
Letter accompanying subsequently filed items
Search/Exam
Sep 12, 2022
Sep 5, 2022
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(Electronic) Receipt
Search/Exam
Aug 15, 2022
Letter accompanying subsequently filed items
Search/Exam
Aug 15, 2022
Matter concerning the application
Search/Exam
Jul 20, 2022
May 30, 2022
May 12, 2022
(Electronic) Receipt
Search/Exam
May 12, 2022
Request for entry into the European phase
Search/Exam
Apr 1, 2022
Information on entry into European phase
Search/Exam
Jun 14, 2021
May 27, 2021
Copy of the international search report
Search/Exam
May 27, 2021
Copy of the international search report
Search/Exam
May 27, 2021
Notification of election of EPO
Search/Exam
May 27, 2021
Published international application - A1
Search/Exam
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PCT demand form
PCT2
Mar 30, 2021
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Nov 6, 2020
Oct 21, 2020
(Electronic) Receipt
PCTRO
Oct 21, 2020
Abstract
PCTRO
Oct 21, 2020
Claims
PCTRO
Oct 21, 2020
Description
PCTRO
Oct 21, 2020
Oct 21, 2020
Drawings
PCTRO
Oct 21, 2020