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The patent EP3061048 was granted to RIO Tinto Alcan on Oct 10, 2018. The application was filed on Oct 23, 2014 under application number EP14856216A. The patent is currently recorded with a legal status of "Opposition Rejected".

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 |
|---|---|---|---|
| NORSK HYDRO ASA | Jul 3, 2019 | BERG | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | DE4221882 |
| INTERNATIONAL-SEARCH-REPORT | FR2874934 |
| INTERNATIONAL-SEARCH-REPORT | FR2953223 |
| OPPOSITION | CA2467019 |
| OPPOSITION | CN201231786Y |
| OPPOSITION | US2012246923 |
| OPPOSITION | US5961812 |
| OPPOSITION | WO2015017922 |
| OPPOSITION | WO9939027 |
| SEARCH | FR2714394 |
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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Means of redress
OPPO
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Authorisation
OPPO
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Oct 22, 2018
Sep 13, 2018
Decision to grant a European patent
Search/Exam
Sep 3, 2018
(Electronic) Receipt
Search/Exam
Sep 3, 2018
English translation of the claims
Search/Exam
Sep 3, 2018
Filing of the translations of the claims
Search/Exam
Sep 3, 2018
German translation of the claims
Search/Exam
Sep 3, 2018
Letter accompanying subsequently filed items
Search/Exam
May 8, 2018
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Intention to grant (signatures)
Search/Exam
May 8, 2018
Text intended for grant (clean copy)
Search/Exam
May 8, 2018
Apr 11, 2018
Examination started
Search/Exam
Dec 1, 2017
(Electronic) Receipt
Search/Exam
Dec 1, 2017
Dec 1, 2017
Amended claims with annotations
Search/Exam
Dec 1, 2017
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Amended description with annotations
Search/Exam
Dec 1, 2017
Amendments received before examination
Search/Exam
Dec 1, 2017
Letter accompanying subsequently filed items
Search/Exam
May 23, 2017
May 10, 2017
Refund of fees
Search/Exam
May 4, 2017
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European search opinion
Search/Exam
May 4, 2017
Information on Search Strategy
Search/Exam
May 4, 2017
Supplementary European search report
Search/Exam
Apr 18, 2017
Search started
Search/Exam
Feb 21, 2017
Priority search results copy provided by EPO
Search/Exam
Oct 17, 2016
Oct 4, 2016
Aug 3, 2016
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Jun 15, 2016
Communication to designated inventor
Search/Exam
Jun 15, 2016
Communication to designated inventor
Search/Exam
Jun 15, 2016
Communication to designated inventor
Search/Exam
May 18, 2016
May 13, 2016
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Amended claims with annotations
Search/Exam
May 13, 2016
Amendments received before examination
Search/Exam
May 13, 2016
Payment of fees and costs
Search/Exam
May 13, 2016
Request for entry into the European phase
Search/Exam
Mar 4, 2016
Information on entry into European phase
Search/Exam
May 19, 2015
Apr 30, 2015
Copy of the international search report
Search/Exam
Apr 30, 2015
Published international application - A1
Search/Exam