Patent No. EP3827109 (titled "Method Of Manufacturing An Al-Mg-Mn Alloy Plate Product") was filed by Aleris Rolled Products Germany on May 7, 2019. The application was issued on Oct 5, 2022.

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 |
|---|---|---|
| ARCONIC | Jul 4, 2023 | FORRESTERS |
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
Get instant alerts for new documents
Feb 3, 2026
Feb 3, 2026
Nov 12, 2025
Nov 6, 2025
Nov 6, 2025
Nov 6, 2025
Oct 10, 2025
Oct 10, 2025
Oct 7, 2025
Oct 7, 2025
Jul 25, 2025
Jul 22, 2025
Jul 22, 2025
Jul 22, 2025
Jul 22, 2025
Jul 22, 2025
Jul 22, 2025
Jul 22, 2025
Jul 22, 2025
Jul 22, 2025
Jul 22, 2025
Jul 22, 2025
Jul 22, 2025
Jul 22, 2025
Jul 22, 2025
Jul 22, 2025
Jul 22, 2025
Jul 22, 2025
Jul 22, 2025
Jul 22, 2025
Jul 22, 2025
Jul 22, 2025
Jul 22, 2025
Jul 22, 2025
Jul 22, 2025
Jul 22, 2025
Jul 22, 2025
Jul 22, 2025
Mar 24, 2025
Mar 19, 2025
Mar 19, 2025
Mar 19, 2025
Jan 22, 2025
Jan 22, 2025
Jan 21, 2025
Jan 16, 2025
Jan 16, 2025
Jan 16, 2025
Nov 21, 2024
Nov 21, 2024
Nov 21, 2024
Nov 21, 2024
Nov 21, 2024
Nov 21, 2024
Nov 21, 2024
Nov 21, 2024
Nov 21, 2024
Nov 21, 2024
Nov 21, 2024
Nov 21, 2024
Nov 21, 2024
Nov 21, 2024
Nov 21, 2024
Oct 17, 2024
Sep 18, 2024
Sep 18, 2024
Sep 18, 2024
Aug 22, 2024
Aug 16, 2024
Aug 16, 2024
Aug 16, 2024
Aug 16, 2024
Jun 25, 2024
Jun 20, 2024
Jun 20, 2024
Jun 20, 2024
Jun 20, 2024
Jun 20, 2024
Jun 20, 2024
Jun 20, 2024
Jun 20, 2024
Jun 20, 2024
Jun 20, 2024
Jun 20, 2024
Jun 20, 2024
Jun 20, 2024
Jun 20, 2024
Jun 20, 2024
Jun 20, 2024
Jun 20, 2024
Jun 20, 2024
Jun 20, 2024
Jun 20, 2024
Jun 20, 2024
Jun 20, 2024
Jun 20, 2024
Jun 20, 2024
Jun 20, 2024
Jun 20, 2024
Jun 20, 2024
Jun 20, 2024
Jan 31, 2024
Jan 29, 2024
Jan 29, 2024
Jan 29, 2024
Jan 29, 2024
Jan 29, 2024
Jan 29, 2024
Jan 29, 2024
Jan 22, 2024
Nov 9, 2023
Nov 6, 2023
Nov 6, 2023
Nov 6, 2023
Nov 6, 2023
Nov 6, 2023
Nov 6, 2023
Nov 6, 2023
Nov 6, 2023
Nov 6, 2023
Nov 6, 2023
Nov 6, 2023
Nov 6, 2023
Nov 6, 2023
Aug 14, 2023
Jul 19, 2023
Jul 19, 2023
Jul 7, 2023
Jul 4, 2023
Jul 4, 2023
Jul 4, 2023
Jul 4, 2023
Jul 4, 2023
Jul 4, 2023
Jul 4, 2023
Jul 4, 2023
Oct 17, 2022
Sep 8, 2022
Aug 25, 2022
Aug 25, 2022
Aug 25, 2022
Aug 25, 2022
Apr 26, 2022
Apr 26, 2022
Apr 26, 2022
Apr 26, 2022
Apr 26, 2022
Mar 21, 2022
Mar 2, 2022
Feb 24, 2022
Feb 24, 2022
Feb 24, 2022
Aug 25, 2021
Aug 25, 2021
Aug 25, 2021
Aug 25, 2021
Aug 25, 2021
May 19, 2021
May 6, 2021
Apr 22, 2021
Apr 21, 2021
Apr 15, 2021
Apr 7, 2021
Apr 7, 2021
Feb 1, 2021
Dec 14, 2020
Sep 25, 2020
Jul 21, 2020
Jul 21, 2020
Jul 21, 2020
Jul 2, 2020
Jul 2, 2020
Jul 2, 2020
Jul 2, 2020
Dec 9, 2019
Nov 21, 2019
Nov 21, 2019
Aug 15, 2019
Jul 18, 2019
Jul 2, 2019
Jul 2, 2019
Jul 2, 2019
Jul 2, 2019
May 20, 2019
May 17, 2019
May 14, 2019
May 7, 2019
May 7, 2019
May 7, 2019
May 7, 2019
May 7, 2019
May 7, 2019
May 7, 2019