Patent No. EP3317359 (titled "A Method For Increasing The Reactivity Of Lignin, A Resin Composition Comprising Said Lignin And Use Of Said Resin Composition") was filed by Stora Enso OYJ on Jun 29, 2016. The application was issued on Jun 7, 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 |
|---|---|---|
| UPM KYMMENE | Mar 6, 2024 | HOFFMANN EITLE |
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 24, 2026
Feb 20, 2026
Feb 20, 2026
Feb 20, 2026
Feb 20, 2026
Feb 20, 2026
Feb 20, 2026
Feb 20, 2026
Feb 20, 2026
Feb 20, 2026
Feb 20, 2026
Feb 20, 2026
Feb 20, 2026
Feb 20, 2026
Feb 20, 2026
Feb 20, 2026
Feb 20, 2026
Feb 20, 2026
Feb 20, 2026
Feb 20, 2026
Feb 20, 2026
Jan 23, 2026
Jan 20, 2026
Jan 20, 2026
Jan 20, 2026
Jan 9, 2026
Jan 7, 2026
Jan 7, 2026
Jan 7, 2026
Jan 5, 2026
Jan 5, 2026
Jan 5, 2026
Jan 5, 2026
Dec 19, 2025
Dec 19, 2025
Dec 19, 2025
Oct 23, 2025
Oct 23, 2025
Oct 23, 2025
Oct 23, 2025
Oct 23, 2025
Oct 23, 2025
Oct 23, 2025
Oct 23, 2025
Oct 23, 2025
Oct 23, 2025
Oct 23, 2025
Oct 23, 2025
Oct 23, 2025
Oct 23, 2025
Oct 23, 2025
Oct 7, 2025
Aug 11, 2025
Aug 6, 2025
Aug 6, 2025
Aug 6, 2025
Jul 23, 2025
Jul 17, 2025
Jul 17, 2025
Jul 17, 2025
Jul 8, 2025
Jul 3, 2025
Jul 3, 2025
Jul 3, 2025
Jul 3, 2025
Jul 3, 2025
Jul 3, 2025
Nov 5, 2024
Nov 5, 2024
Nov 5, 2024
Nov 5, 2024
Nov 5, 2024
Oct 9, 2024
Oct 4, 2024
Oct 4, 2024
Oct 4, 2024
Jul 8, 2024
Jul 3, 2024
Jul 3, 2024
Jul 3, 2024
Jul 3, 2024
Jul 3, 2024
Jul 3, 2024
Jul 3, 2024
Jul 3, 2024
Jul 3, 2024
Jul 3, 2024
Jul 3, 2024
Mar 22, 2024
Mar 22, 2024
Mar 13, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Jun 20, 2023
May 11, 2023
Feb 20, 2023
Feb 20, 2023
Feb 20, 2023
Feb 20, 2023
Feb 20, 2023
Feb 20, 2023
Oct 20, 2022
Oct 20, 2022
Oct 20, 2022
Oct 20, 2022
Oct 20, 2022
Oct 20, 2022
Jun 7, 2022
Jun 7, 2022
Jun 7, 2022
Jun 7, 2022
Jun 7, 2022
Feb 9, 2022
Feb 9, 2022
Feb 1, 2022
Nov 4, 2019
Nov 4, 2019
Nov 4, 2019
Nov 4, 2019
Oct 30, 2019
Oct 30, 2019
Oct 30, 2019
May 24, 2019
May 7, 2019
May 7, 2019
May 7, 2019
May 7, 2019
Feb 28, 2019
Apr 11, 2018
Feb 21, 2018
Feb 14, 2018
Feb 14, 2018
Feb 1, 2018
Feb 1, 2018
Feb 1, 2018
Feb 1, 2018
Jan 17, 2018
Jan 17, 2018
Nov 17, 2017
Aug 18, 2017
Jan 12, 2017
Jan 12, 2017