Patent No. EP3677422 (titled "Sanitary Tissue Paper") was filed by Daio Paper on Aug 29, 2018. The application was issued on Nov 30, 2022.

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 |
|---|---|---|
| ESSITY HYGIENE AND HEALTH | Aug 30, 2023 | 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 3, 2026
Feb 3, 2026
Jan 29, 2026
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 21, 2025
Oct 16, 2025
Oct 16, 2025
Oct 2, 2025
Aug 29, 2025
Aug 29, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
Jul 16, 2025
Jul 15, 2025
Jul 15, 2025
Jul 10, 2025
Jul 10, 2025
Jul 10, 2025
Mar 6, 2025
Feb 4, 2025
Feb 4, 2025
Feb 4, 2025
Feb 4, 2025
Feb 4, 2025
Sep 4, 2024
Aug 29, 2024
Aug 29, 2024
Aug 29, 2024
Aug 29, 2024
Aug 29, 2024
Aug 29, 2024
Aug 29, 2024
Aug 29, 2024
Aug 29, 2024
Aug 29, 2024
Aug 29, 2024
Jan 22, 2024
Jan 12, 2024
Jan 12, 2024
Jan 12, 2024
Jan 12, 2024
Jan 12, 2024
Jan 12, 2024
Jan 12, 2024
Jan 12, 2024
Jan 12, 2024
Jan 12, 2024
Jan 12, 2024
Jan 12, 2024
Jan 12, 2024
Jan 12, 2024
Jan 12, 2024
Jan 12, 2024
Jan 12, 2024
Jan 12, 2024
Jan 12, 2024
Jan 12, 2024
Jan 12, 2024
Jan 12, 2024
Jan 12, 2024
Sep 14, 2023
Sep 14, 2023
Sep 5, 2023
Aug 30, 2023
Aug 30, 2023
Aug 30, 2023
Aug 30, 2023
Aug 30, 2023
Aug 30, 2023
Aug 30, 2023
Aug 30, 2023
Aug 30, 2023
Aug 30, 2023
Aug 30, 2023
Aug 30, 2023
Aug 30, 2023
Aug 30, 2023
Aug 30, 2023
Aug 30, 2023
Aug 30, 2023
Aug 30, 2023
Aug 30, 2023
Aug 30, 2023
Aug 30, 2023
Aug 30, 2023
Aug 30, 2023
Aug 30, 2023
Dec 13, 2022
Nov 4, 2022
Oct 20, 2022
Oct 20, 2022
Oct 20, 2022
Oct 20, 2022
Oct 20, 2022
Aug 4, 2022
Aug 4, 2022
Aug 4, 2022
Aug 4, 2022
Aug 4, 2022
Jul 11, 2022
May 21, 2021
May 21, 2021
May 21, 2021
May 4, 2021
Apr 14, 2021
Apr 14, 2021
Apr 14, 2021
Apr 14, 2021
Apr 14, 2021
Mar 31, 2021
Sep 22, 2020
Sep 22, 2020
Sep 22, 2020
Sep 22, 2020
Sep 22, 2020
Jun 10, 2020
Apr 7, 2020
Apr 3, 2020
Apr 3, 2020
Mar 16, 2020
Mar 16, 2020
Feb 24, 2020
Feb 24, 2020
Feb 24, 2020
Feb 24, 2020
Feb 24, 2020
Feb 24, 2020
Jan 10, 2020
Mar 26, 2019
Mar 7, 2019
Mar 7, 2019
Mar 7, 2019