Patent No. EP3719160 (titled "Non-Oriented Electrical Steel Sheet With Excellent Magnetism And Manufacturing Method Therefor") was filed by Baoshan Iron & Steel on Jul 11, 2018. The application was issued on Jan 10, 2024.

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 |
|---|---|---|
| ARCELORMITTAL | Oct 9, 2024 | LAVOIX |
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 13, 2026
Feb 12, 2026
Feb 12, 2026
Feb 12, 2026
Feb 12, 2026
Feb 12, 2026
Feb 12, 2026
Feb 12, 2026
Feb 12, 2026
Feb 12, 2026
Feb 12, 2026
Feb 12, 2026
Feb 12, 2026
Feb 12, 2026
Feb 12, 2026
Feb 12, 2026
Feb 12, 2026
Feb 12, 2026
Feb 12, 2026
Feb 12, 2026
Feb 12, 2026
Feb 11, 2026
Feb 11, 2026
Feb 11, 2026
Feb 5, 2026
Feb 5, 2026
Feb 4, 2026
Feb 4, 2026
Feb 4, 2026
Feb 3, 2026
Feb 3, 2026
Feb 3, 2026
Sep 18, 2025
Sep 18, 2025
Sep 18, 2025
Sep 18, 2025
Sep 18, 2025
Aug 26, 2025
Aug 20, 2025
Aug 20, 2025
Aug 20, 2025
Aug 20, 2025
Aug 20, 2025
Aug 20, 2025
Jun 5, 2025
May 28, 2025
May 28, 2025
May 28, 2025
May 28, 2025
Feb 28, 2025
Feb 24, 2025
Feb 24, 2025
Feb 24, 2025
Feb 24, 2025
Feb 24, 2025
Feb 24, 2025
Oct 24, 2024
Oct 24, 2024
Oct 14, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Jan 23, 2024
Dec 14, 2023
Nov 30, 2023
Nov 30, 2023
Nov 30, 2023
Nov 30, 2023
Aug 31, 2023
Aug 31, 2023
Aug 31, 2023
Aug 31, 2023
Aug 31, 2023
Aug 31, 2023
Aug 1, 2023
Oct 13, 2022
Apr 19, 2021
Apr 19, 2021
Apr 19, 2021
Apr 19, 2021
Apr 19, 2021
Apr 19, 2021
Mar 5, 2021
Feb 22, 2021
Feb 22, 2021
Feb 22, 2021
Feb 22, 2021
Feb 22, 2021
Feb 22, 2021
Feb 22, 2021
Nov 3, 2020
Oct 14, 2020
Oct 14, 2020
Oct 14, 2020
Oct 14, 2020
Sep 17, 2020
Sep 17, 2020
Sep 17, 2020
Sep 9, 2020
Sep 4, 2020
Aug 26, 2020
Aug 26, 2020
Jul 7, 2020
Jul 3, 2020
Jul 3, 2020
Jul 3, 2020
Jul 3, 2020
Jul 3, 2020
Jul 3, 2020
Jul 3, 2020
Jun 17, 2020
Jun 17, 2020
May 27, 2020
May 27, 2020
May 27, 2020
May 27, 2020
May 27, 2020
Apr 14, 2020
Jun 24, 2019
Jun 6, 2019
Jun 6, 2019
Jun 6, 2019