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The patent EP2948571 was granted to Aleris Rolled Products Germany on Sep 12, 2018. The application was filed on Jan 21, 2014 under application number EP14701044A. The patent is currently recorded with a legal status of "Revoked".

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 |
|---|---|---|---|
| C TEC CONSTELLIUM TECHNOLOGY CENTERCONSTELLIUM VALAIS | Jun 11, 2019 | CONSTELLIUM PROPRIETE INDUSTRIELLE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | EP1170394 |
| INTERNATIONAL-SEARCH-REPORT | EP2546373 |
| INTERNATIONAL-SEARCH-REPORT | FR2889852 |
| INTERNATIONAL-SEARCH-REPORT | WO2007020041 |
| INTERNATIONAL-SEARCH-REPORT | WO2007115617 |
| INTERNATIONAL-SEARCH-REPORT | WO2008098743 |
| OPPOSITION | FR2902356 |
| OPPOSITION | US2007234896 |
| OPPOSITION | US2011017055 |
| OPPOSITION | WO2007020041 |
| OPPOSITION | WO2007115617 |
| OPPOSITION | WO2008098743 |
| OPPOSITION | WO2012016667 |
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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Appeal
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Appeal
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Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Mar 15, 2022
Mar 15, 2022
Reply to appeal
Appeal
Mar 7, 2022
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Feb 24, 2022
(Electronic) Receipt
Appeal
Feb 24, 2022
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(Electronic) Receipt
Appeal
Nov 25, 2021
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(Electronic) Receipt
Appeal
Oct 1, 2021
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Notice of appeal
Appeal
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Means of redress
OPPO
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Sep 24, 2018
Aug 17, 2018
Decision to grant a European patent
Search/Exam
Aug 1, 2018
(Electronic) Receipt
Search/Exam
Aug 1, 2018
Filing of the translations of the claims
Search/Exam
Aug 1, 2018
French translation of claims
Search/Exam
Aug 1, 2018
German translation of the claims
Search/Exam
Aug 1, 2018
Letter accompanying subsequently filed items
Search/Exam
Jun 26, 2018
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Intention to grant (signatures)
Search/Exam
Jun 26, 2018
Text intended for grant (clean copy)
Search/Exam
Jun 26, 2018
Mar 15, 2017
(Electronic) Receipt
Search/Exam
Mar 15, 2017
Amended claims with annotations
Search/Exam
Mar 15, 2017
Claims
Search/Exam
Mar 15, 2017
Letter accompanying subsequently filed items
Search/Exam
Mar 15, 2017
Dec 1, 2016
Annex to the communication
Search/Exam
Dec 1, 2016
Communication from the Examining Division
Search/Exam
Oct 19, 2016
(Electronic) Receipt
Search/Exam
Oct 19, 2016
Amended claims with annotations
Search/Exam
Oct 19, 2016
Claims
Search/Exam
Oct 19, 2016
Letter accompanying subsequently filed items
Search/Exam
Oct 19, 2016
Jun 22, 2016
Annex to the communication
Search/Exam
Jun 22, 2016
Communication from the Examining Division
Search/Exam
Jun 16, 2016
Examination started
Search/Exam
Feb 26, 2016
(Electronic) Receipt
Search/Exam
Feb 26, 2016
Feb 26, 2016
Amended claims with annotations
Search/Exam
Feb 26, 2016
Amendments received before examination
Search/Exam
Feb 26, 2016
Letter accompanying subsequently filed items
Search/Exam
Nov 4, 2015
Sep 17, 2015
Sep 1, 2015
Aug 28, 2015
Communication to designated inventor
Search/Exam
Aug 28, 2015
Communication to designated inventor
Search/Exam
Aug 25, 2015
Priority search results copy provided by EPO
Search/Exam
Aug 11, 2015
Jul 27, 2015
(Electronic) Receipt
Search/Exam
Jul 27, 2015
Request for entry into the European phase
Search/Exam
Jun 8, 2015
Information on entry into European phase
Search/Exam
Aug 20, 2014
Jul 31, 2014
Copy of the international search report
Search/Exam
Jul 31, 2014
Published international application - A1
Search/Exam
Apr 2, 2014
Apr 2, 2014
Apr 2, 2014
Jan 21, 2014
(Electronic) Receipt
PCTRO
Jan 21, 2014
Abstract
PCTRO
Jan 21, 2014
Claims
PCTRO
Jan 21, 2014
Description
PCTRO
Jan 21, 2014