Patent No. EP3814728 (titled "A Detection System For Detecting The Level Of Metal In A Melting Furnace") was filed by Danieli & C Officine Meccaniche on Jun 28, 2019. The application was issued on Aug 16, 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 |
|---|---|---|
| REFRACTORY | May 15, 2024 | EIBEL |
| REFRACTORY | May 15, 2024 | PACHER |
| SMS GROUP | May 15, 2024 | RICHLY & RITSCHEL PATENTANWALTE PARTG MBB |
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
Jan 8, 2026
Jan 8, 2026
Jan 8, 2026
Sep 29, 2025
Sep 29, 2025
Sep 29, 2025
Sep 29, 2025
Sep 29, 2025
Sep 29, 2025
Sep 29, 2025
Sep 29, 2025
Sep 29, 2025
Sep 29, 2025
Sep 29, 2025
Sep 29, 2025
Sep 29, 2025
Sep 29, 2025
Sep 29, 2025
Sep 29, 2025
Sep 10, 2025
Sep 10, 2025
Sep 10, 2025
Sep 10, 2025
Sep 10, 2025
Sep 5, 2025
Sep 5, 2025
Sep 2, 2025
Sep 2, 2025
Sep 2, 2025
Sep 2, 2025
Sep 2, 2025
Sep 2, 2025
Jul 15, 2025
Jul 15, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jun 20, 2025
Jun 20, 2025
Jun 20, 2025
Jun 20, 2025
Jun 19, 2025
Jun 16, 2025
Jun 16, 2025
Jun 16, 2025
Jun 13, 2025
Jun 13, 2025
Jun 13, 2025
Apr 16, 2025
Apr 16, 2025
Apr 11, 2025
Apr 11, 2025
Apr 11, 2025
Apr 8, 2025
Apr 8, 2025
Apr 3, 2025
Apr 3, 2025
Apr 3, 2025
Dec 4, 2024
Dec 4, 2024
Nov 28, 2024
Nov 28, 2024
Nov 28, 2024
Nov 15, 2024
Nov 15, 2024
Nov 15, 2024
Nov 15, 2024
Nov 15, 2024
Nov 15, 2024
Oct 18, 2024
Oct 18, 2024
Oct 17, 2024
Oct 17, 2024
Oct 17, 2024
Oct 17, 2024
Oct 9, 2024
Oct 9, 2024
Oct 3, 2024
Oct 3, 2024
Oct 3, 2024
Oct 3, 2024
Oct 3, 2024
Sep 11, 2024
Sep 11, 2024
Sep 11, 2024
Sep 6, 2024
Sep 6, 2024
Sep 6, 2024
Jul 23, 2024
Jul 23, 2024
Jul 18, 2024
Jul 18, 2024
Jul 18, 2024
Jul 18, 2024
Jun 11, 2024
Jun 11, 2024
Jun 11, 2024
Jun 11, 2024
Jun 11, 2024
Jun 11, 2024
Jun 11, 2024
Jun 11, 2024
Jun 11, 2024
Jun 11, 2024
Jun 11, 2024
Jun 5, 2024
Jun 5, 2024
Jun 3, 2024
Jun 3, 2024
Jun 3, 2024
May 22, 2024
May 22, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
Aug 29, 2023
Jul 20, 2023
Jul 7, 2023
Jul 7, 2023
Jul 7, 2023
Jul 7, 2023
Mar 16, 2023
Mar 16, 2023
Mar 16, 2023
Mar 16, 2023
Mar 16, 2023
Mar 16, 2023
Feb 15, 2023
Sep 14, 2021
Aug 5, 2021
Aug 5, 2021
Aug 5, 2021
Aug 5, 2021
Aug 5, 2021
Apr 8, 2021
Feb 5, 2021
Feb 3, 2021
Feb 3, 2021
Feb 3, 2021
Jan 27, 2021
Jan 27, 2021
Jan 27, 2021
Jan 27, 2021
Jan 11, 2021
Nov 6, 2020
Jun 11, 2020
Jun 11, 2020
Jan 22, 2020
Jan 2, 2020
Jan 2, 2020
Oct 24, 2019
Oct 24, 2019
Oct 24, 2019
Oct 24, 2019
Aug 29, 2019
Aug 22, 2019
Aug 20, 2019
Aug 20, 2019
Aug 20, 2019
Aug 20, 2019
Aug 20, 2019
Aug 20, 2019
Aug 20, 2019
Aug 20, 2019
Aug 20, 2019