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The patent EP3743536 was granted to Novelis on Feb 28, 2024. The application was filed on May 14, 2019 under application number EP19727246A. 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 |
|---|---|---|---|
| SPEIRA | Nov 27, 2024 | COHAUSZ & FLORACK | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | US2004250928 |
| INTERNATIONAL-SEARCH-REPORT | US2017175240 |
| INTERNATIONAL-SEARCH-REPORT | US2017198376 |
| INTERNATIONAL-SEARCH-REPORT | US2018117650 |
| OTHER | EP3171996 |
| OTHER | US2017189949 |
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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Jul 15, 2025
Jul 15, 2025
Apr 9, 2025
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Nov 27, 2024
Nov 27, 2024
Nov 27, 2024
Mar 13, 2024
Feb 1, 2024
Decision to grant a European patent
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Jan 26, 2024
Refund of fees
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Jan 18, 2024
(Electronic) Receipt
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Jan 18, 2024
French translation of claims
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Jan 18, 2024
German translation of the claims
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Jan 18, 2024
Letter accompanying subsequently filed items
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Sep 15, 2023
Sep 15, 2023
Sep 15, 2023
Sep 15, 2023
Intention to grant (signatures)
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Sep 15, 2023
Text intended for grant (clean copy)
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Sep 15, 2023
Aug 24, 2023
Aug 14, 2023
Aug 3, 2023
(Electronic) Receipt
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Aug 3, 2023
Filing of the translations of the claims
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Aug 3, 2023
French translation of claims
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Aug 3, 2023
German translation of the claims
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Aug 3, 2023
Letter accompanying subsequently filed items
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Aug 3, 2023
Jul 31, 2023
(Electronic) Receipt
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Jul 31, 2023
Letter accompanying subsequently filed items
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Jul 31, 2023
May 17, 2023
May 12, 2023
Non-patent literature filed by a third party
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May 12, 2023
Non-patent literature filed by a third party
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May 12, 2023
Non-patent literature filed by a third party
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May 12, 2023
Non-patent literature filed by a third party
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May 12, 2023
Observations by third parties
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May 12, 2023
Patent document filed by a Third party
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Apr 28, 2023
Apr 28, 2023
Apr 28, 2023
Apr 28, 2023
Intention to grant (signatures)
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Apr 28, 2023
Text intended for grant (clean copy)
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Apr 28, 2023
Jul 14, 2022
(Electronic) Receipt
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Jul 14, 2022
Amended claims with annotations
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Jul 14, 2022
Amended description with annotations
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Jul 14, 2022
Claims
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Jul 14, 2022
Description
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Jul 14, 2022
Letter accompanying subsequently filed items
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Jul 14, 2022
Jun 15, 2022
Jun 15, 2022
Jun 13, 2022
Jun 10, 2022
Citation filed by a third party
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Jun 7, 2022
Citation filed by a third party
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Jun 7, 2022
Matter concerning the application
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May 31, 2022
Citation filed by a third party
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May 31, 2022
Citation filed by a third party
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May 31, 2022
Observations by third parties
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Apr 8, 2022
Annex to the communication
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Apr 8, 2022
Communication from the Examining Division
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Apr 4, 2022
Examination started
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Nov 30, 2021
Nov 17, 2021
(Electronic) Receipt
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Nov 17, 2021
Enquiry as to the processing of the file
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Nov 17, 2021
Letter accompanying subsequently filed items
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Nov 30, 2020
Nov 6, 2020
Communication to designated inventor
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Nov 6, 2020
Communication to designated inventor
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Nov 5, 2020
(Electronic) Receipt
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Nov 5, 2020
Nov 5, 2020
Amended claims with annotations
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Nov 5, 2020
Amendments received before examination
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Nov 5, 2020
Letter accompanying subsequently filed items
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Nov 4, 2020
Oct 28, 2020
(Electronic) Receipt
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Oct 28, 2020
Letter accompanying subsequently filed items
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Oct 28, 2020
Letter concerning the inventor
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Oct 15, 2020
Oct 15, 2020
Oct 1, 2020
Letter which had not been notified
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Sep 30, 2020
Letter which had not been notified
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Sep 11, 2020
Sep 9, 2020
Communication to designated inventor
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Sep 9, 2020
Communication to designated inventor
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Sep 9, 2020
Communication to designated inventor
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Sep 9, 2020
Communication to designated inventor
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Sep 9, 2020
Sep 8, 2020
Aug 25, 2020
(Electronic) Receipt
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Aug 25, 2020
Aug 25, 2020
Amended claims with annotations
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Aug 25, 2020
Request for entry into the European phase
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Dec 9, 2019
Dec 9, 2019
Nov 21, 2019
Copy of the international search report
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Nov 21, 2019
Published international application - A1
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Aug 7, 2019
ISR: cited documents
PCTISA
Aug 7, 2019
Aug 7, 2019
Aug 7, 2019
Jun 12, 2019
May 27, 2019
Abstract
PCTISA
May 27, 2019
Annex
PCTISA
May 27, 2019
Claims
PCTISA
May 27, 2019
Description
PCTISA
May 27, 2019
Drawings
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May 27, 2019
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May 27, 2019