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The patent EP3833794 was granted to Aleris Rolled Products Germany on Jan 4, 2023. The application was filed on Nov 5, 2019 under application number EP19800967A. 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 |
|---|---|---|---|
| ARCONIC | Oct 4, 2023 | FORRESTERS | ADMISSIBLE |
| C TEC CONSTELLIUM TECHNOLOGY CENTERCONSTELLIUM ISSOIRE | Oct 4, 2023 | CONSTELLIUM PROPRIETE INDUSTRIELLE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP0863220 |
| EXAMINATION | EP0863220 |
| INTERNATIONAL-SEARCH-REPORT | EP0863220 |
| INTERNATIONAL-SEARCH-REPORT | US2012291926 |
| OPPOSITION | CN101413079 |
| OPPOSITION | CN101509091 |
| OPPOSITION | CN103233148 |
| OPPOSITION | EP0030070 |
| OPPOSITION | US2004089378 |
| OPPOSITION | US5047092 |
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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Letter accompanying subsequently filed items
Search/Exam
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Decision to grant a European patent
Search/Exam
Nov 29, 2022
(Electronic) Receipt
Search/Exam
Nov 29, 2022
Filing of the translations of the claims
Search/Exam
Nov 29, 2022
French translation of claims
Search/Exam
Nov 29, 2022
German translation of the claims
Search/Exam
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Intention to grant (signatures)
Search/Exam
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Text intended for grant (clean copy)
Search/Exam
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(Electronic) Receipt
Search/Exam
Aug 1, 2022
Amended description with annotations
Search/Exam
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Description
Search/Exam
Aug 1, 2022
Letter accompanying subsequently filed items
Search/Exam
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Search/Exam
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Text intended for grant (clean copy)
Search/Exam
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Examination started
Search/Exam
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Annexes in respect of a client data request
Search/Exam
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Annexes in respect of a client data request
Search/Exam
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(Electronic) Receipt
Search/Exam
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Amended claims with annotations
Search/Exam
Sep 13, 2021
Amendments received before examination
Search/Exam
Sep 13, 2021
Letter accompanying subsequently filed items
Search/Exam
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Letter which had not been notified
Search/Exam
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Communication to designated inventor
Search/Exam
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Communication to designated inventor
Search/Exam
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Communication to designated inventor
Search/Exam
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Communication to designated inventor
Search/Exam
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Communication to designated inventor
Search/Exam
Mar 23, 2021
Priority search results copy provided by EPO
Search/Exam
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(Electronic) Receipt
Search/Exam
Mar 12, 2021
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Amended claims with annotations
Search/Exam
Mar 12, 2021
Request for entry into the European phase
Search/Exam
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Notification of the recording of a change
Search/Exam
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(Electronic) Receipt
PCTRO
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Copy of the international search report
Search/Exam
May 22, 2020
Published international application - A1
Search/Exam
Jan 16, 2020
ISR: cited documents
PCTISA
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(Electronic) Receipt
PCTRO
Nov 5, 2019
Abstract
PCTRO
Nov 5, 2019
Claims
PCTRO
Nov 5, 2019
Description
PCTRO
Nov 5, 2019
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