Patent No. EP3325684 (titled "Method For Producing A Hot-Rolled Strip Composed Of A Bainitic Multi-Phase Steel And Having A Zn-Mg-Al Coating, And Corresponding Hot-Rolled Strip") was filed by Salzgitter Flachstahl on Jul 13, 2016. The application was issued on Mar 4, 2020.

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 |
|---|---|---|
| BIENERT | Dec 2, 2020 | WAGNER & GEYER |
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 14, 2025
Feb 14, 2025
Feb 14, 2025
Jan 13, 2025
Jan 13, 2025
Jan 13, 2025
Jan 3, 2025
Jan 3, 2025
Jan 2, 2025
Jan 2, 2025
Jan 2, 2025
Dec 4, 2024
Nov 29, 2024
Nov 29, 2024
Nov 29, 2024
Nov 29, 2024
Nov 29, 2024
Oct 30, 2024
Oct 30, 2024
Oct 30, 2024
Oct 30, 2024
Oct 30, 2024
Oct 28, 2024
Oct 25, 2024
Oct 24, 2024
Oct 24, 2024
Oct 24, 2024
Oct 23, 2024
Oct 23, 2024
Oct 23, 2024
Sep 17, 2024
Sep 17, 2024
Sep 10, 2024
Sep 5, 2024
Sep 5, 2024
Sep 5, 2024
Nov 17, 2023
Nov 17, 2023
Nov 10, 2023
Nov 7, 2023
Nov 7, 2023
Nov 6, 2023
Nov 6, 2023
Nov 2, 2023
Nov 2, 2023
Nov 2, 2023
Oct 31, 2023
Oct 31, 2023
Jun 6, 2023
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
Feb 1, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Dec 2, 2022
Dec 1, 2022
Dec 1, 2022
Nov 25, 2022
Nov 25, 2022
Nov 25, 2022
Nov 25, 2022
Nov 25, 2022
Nov 25, 2022
Nov 23, 2022
Nov 23, 2022
Nov 23, 2022
Nov 17, 2022
Nov 17, 2022
Nov 17, 2022
Nov 17, 2022
Nov 7, 2022
Nov 3, 2022
Sep 27, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
May 31, 2022
May 25, 2022
May 20, 2022
May 20, 2022
May 20, 2022
May 13, 2022
May 11, 2022
May 11, 2022
May 11, 2022
Apr 4, 2022
Mar 29, 2022
Mar 29, 2022
Mar 29, 2022
Mar 29, 2022
Mar 29, 2022
Mar 29, 2022
Mar 29, 2022
Mar 8, 2022
Mar 3, 2022
Mar 3, 2022
Mar 3, 2022
Mar 2, 2022
Feb 28, 2022
Feb 23, 2022
Feb 2, 2022
Feb 2, 2022
Feb 1, 2022
Jan 26, 2022
Jan 26, 2022
Jan 26, 2022
Dec 21, 2021
Dec 13, 2021
Dec 13, 2021
Dec 9, 2021
Dec 9, 2021
Dec 7, 2021
Dec 7, 2021
Dec 7, 2021
Dec 3, 2021
Dec 3, 2021
Dec 3, 2021
Oct 14, 2021
Oct 11, 2021
Oct 11, 2021
Oct 11, 2021
Oct 11, 2021
Oct 11, 2021
Oct 11, 2021
Oct 11, 2021
Oct 11, 2021
Oct 11, 2021
Jun 2, 2021
May 27, 2021
May 27, 2021
May 27, 2021
May 27, 2021
May 27, 2021
May 27, 2021
May 27, 2021
May 27, 2021
May 27, 2021
May 27, 2021
May 27, 2021
May 27, 2021
May 27, 2021
Jan 20, 2021
Jan 20, 2021
Dec 23, 2020
Dec 23, 2020
Dec 23, 2020
Dec 23, 2020
Dec 17, 2020
Dec 9, 2020
Dec 2, 2020
Dec 2, 2020
Dec 2, 2020
Dec 2, 2020
Dec 2, 2020
Dec 2, 2020
Dec 2, 2020
Dec 2, 2020
Dec 2, 2020
Dec 2, 2020
Dec 2, 2020
Dec 2, 2020
Dec 2, 2020
Dec 2, 2020
Dec 2, 2020
Dec 2, 2020
Dec 2, 2020
Dec 2, 2020
Dec 2, 2020
Mar 16, 2020
Feb 6, 2020
Jan 23, 2020
Jan 23, 2020
Jan 23, 2020
Jan 23, 2020
Oct 21, 2019
Oct 21, 2019
Oct 21, 2019
Oct 21, 2019
Oct 21, 2019
Oct 21, 2019
Jul 31, 2019
Jul 31, 2019
Jul 16, 2019
Jul 16, 2019
Jul 16, 2019
Jul 16, 2019
Jul 16, 2019
Jul 16, 2019
Jul 16, 2019
Jul 16, 2019
Jul 16, 2019
Jul 16, 2019
Jul 16, 2019
May 13, 2019
May 13, 2019
May 13, 2019
May 13, 2019
May 13, 2019
Jan 25, 2019
Jan 25, 2019
Jan 21, 2019
Oct 25, 2018
Oct 16, 2018
May 3, 2018
May 3, 2018
May 3, 2018
May 3, 2018
May 3, 2018
May 3, 2018
May 3, 2018
May 3, 2018
Feb 23, 2018
Feb 23, 2018
Feb 23, 2018
Feb 23, 2018
Feb 23, 2018
Feb 23, 2018
Feb 23, 2018
Feb 23, 2018
Feb 5, 2018
Jan 31, 2018
Jan 31, 2018
Jan 31, 2018
Dec 4, 2017
Feb 14, 2017
Feb 14, 2017
Jan 26, 2017
Jan 26, 2017
Jan 26, 2017
Sep 6, 2016
Sep 6, 2016
Sep 6, 2016
Aug 23, 2016
Aug 3, 2016
Jul 13, 2016
Jul 13, 2016
Jul 13, 2016
Jul 13, 2016
Jul 13, 2016
Jul 13, 2016