Patent No. EP3397800 (titled "Insulation Product Cmoprising Bulk Mineral Wool") was filed by Saint Gobain on Dec 23, 2016. The application was issued on Dec 25, 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 |
|---|---|---|
| ROCKWOOL | Sep 25, 2025 | GILL JENNINGS & EVERY |
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
Mar 25, 2026
Mar 20, 2026
Mar 20, 2026
Feb 12, 2026
Feb 11, 2026
Feb 11, 2026
Feb 10, 2026
Feb 10, 2026
Feb 10, 2026
Feb 10, 2026
Feb 10, 2026
Feb 10, 2026
Feb 10, 2026
Feb 10, 2026
Feb 10, 2026
Feb 9, 2026
Feb 6, 2026
Feb 6, 2026
Feb 6, 2026
Oct 10, 2025
Oct 10, 2025
Sep 29, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Jan 10, 2025
Nov 28, 2024
Nov 13, 2024
Nov 13, 2024
Nov 13, 2024
Nov 13, 2024
Aug 6, 2024
Aug 6, 2024
Aug 6, 2024
Aug 6, 2024
Aug 6, 2024
Aug 6, 2024
Jun 26, 2024
Jun 26, 2024
Jun 26, 2024
Feb 27, 2024
Feb 27, 2024
Feb 15, 2021
Feb 3, 2021
Feb 3, 2021
Feb 3, 2021
Dec 8, 2020
Nov 30, 2020
Nov 24, 2020
Nov 24, 2020
Nov 24, 2020
Nov 20, 2020
Nov 20, 2020
Nov 20, 2020
Sep 9, 2020
Sep 3, 2020
Sep 3, 2020
Sep 3, 2020
May 12, 2020
May 6, 2020
May 6, 2020
May 6, 2020
May 6, 2020
May 6, 2020
Nov 15, 2019
Nov 15, 2019
Nov 15, 2019
Jul 11, 2019
Jul 10, 2019
Jul 10, 2019
Jul 3, 2019
Jan 22, 2019
Jan 22, 2019
Jan 22, 2019
Oct 10, 2018
Sep 5, 2018
Aug 30, 2018
Aug 9, 2018
Aug 7, 2018
Aug 7, 2018
Aug 7, 2018
Aug 2, 2018
Jul 17, 2018
Jun 14, 2018
Jun 14, 2018
May 14, 2018
Jul 24, 2017
Jul 6, 2017
Jul 6, 2017
Apr 12, 2017
Feb 28, 2017
Feb 28, 2017
Feb 27, 2017
Feb 27, 2017
Feb 27, 2017
Feb 6, 2017
Jan 26, 2017
Dec 23, 2016
Dec 23, 2016
Dec 23, 2016
Dec 23, 2016