Patent No. EP3839085 (titled "Improved Method For Manufacturing A Structure Component For A Motor Vehicle Body") was filed by Constellium Neuf Brisach on Dec 17, 2019. The application was issued on Apr 26, 2023.

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 | Jan 26, 2024 | 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
Dec 29, 2025
Dec 29, 2025
Dec 19, 2025
Dec 15, 2025
Dec 15, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Mar 6, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Jul 18, 2024
Jul 13, 2024
Jul 13, 2024
Jul 13, 2024
Jul 13, 2024
Jul 13, 2024
Jul 13, 2024
Jul 13, 2024
Jun 13, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Feb 9, 2024
Feb 9, 2024
Feb 1, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
May 10, 2023
Mar 30, 2023
Mar 15, 2023
Mar 15, 2023
Mar 15, 2023
Feb 7, 2023
Feb 7, 2023
Feb 7, 2023
Feb 7, 2023
Feb 7, 2023
Feb 7, 2023
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Sep 9, 2022
Sep 9, 2022
Sep 9, 2022
Sep 9, 2022
Sep 9, 2022
Sep 1, 2022
Aug 1, 2022
Aug 1, 2022
Aug 1, 2022
Aug 1, 2022
Aug 1, 2022
Aug 1, 2022
Aug 1, 2022
Jul 14, 2022
Jul 14, 2022
Jul 11, 2022
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Jun 28, 2021
May 27, 2021
Apr 29, 2020
Apr 29, 2020
Apr 29, 2020
Apr 29, 2020
Mar 30, 2020
Feb 7, 2020
Feb 7, 2020
Feb 7, 2020
Jan 22, 2020
Dec 17, 2019
Dec 17, 2019
Dec 17, 2019
Dec 17, 2019
Dec 17, 2019
Dec 17, 2019
Dec 17, 2019
Dec 17, 2019