The weekly litigation news digest is live. Subscribe now
The patent EP3689311 was granted to Daio Paper on Nov 8, 2023. The application was filed on Sep 25, 2018 under application number EP18863683A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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 | Opposition Status |
|---|---|---|---|
| ESSITY HYGIENE AND HEALTH AKTIEBOLAG | Aug 6, 2024 | HOFFMANN EITLE | WITHDRAWN |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JP2015204982 |
| DESCRIPTION | JP2016189932 |
| DESCRIPTION | JP5980355B |
| DESCRIPTION | JP5980367B |
| DESCRIPTION | JPS5918877B |
| DESCRIPTION | JPS6049228B |
| INTERNATIONAL-SEARCH-REPORT | JP2015109900 |
| INTERNATIONAL-SEARCH-REPORT | JP2017064130 |
| INTERNATIONAL-SEARCH-REPORT | JP2017064226 |
| OPPOSITION | JP2016067627 |
| OPPOSITION | JP2016193182 |
| OPPOSITION | JP2017064130 |
| OPPOSITION | JP2017064226 |
| OPPOSITION | JP5918876B |
| OPPOSITION | JP5967736B |
| OPPOSITION | US2017239105 |
| OPPOSITION | WO2012036599 |
| OPPOSITION | WO2012036600 |
| OPPOSITION | WO2016099549 |
| OPPOSITION | WO2016121974 |
| OPPOSITION | WO2016121975 |
| OPPOSITION | WO2016121977 |
| OPPOSITION | WO2016121978 |
| OPPOSITION | WO2016121981 |
| OPPOSITION | WO2016158749 |
| OPPOSITION | WO2016158751 |
| OPPOSITION | WO2016185999 |
| OPPOSITION | WO2017189877 |
| SEARCH | US2017239105 |
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
Nov 26, 2025
Nov 25, 2025
Nov 24, 2025
Nov 24, 2025
Nov 14, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Sep 12, 2025
Jul 16, 2025
Jul 16, 2025
Jul 10, 2025
Jul 10, 2025
Jul 10, 2025
Feb 14, 2025
Feb 14, 2025
Feb 14, 2025
Feb 14, 2025
Feb 14, 2025
Jan 3, 2025
Dec 20, 2024
Dec 20, 2024
Dec 20, 2024
Dec 20, 2024
Dec 20, 2024
Dec 20, 2024
Dec 20, 2024
Dec 20, 2024
Dec 20, 2024
Dec 20, 2024
Dec 20, 2024
Dec 20, 2024
Dec 20, 2024
Dec 20, 2024
Dec 20, 2024
Dec 20, 2024
Dec 20, 2024
Aug 23, 2024
Aug 23, 2024
Aug 13, 2024
Aug 6, 2024
Aug 6, 2024
Aug 6, 2024
Aug 6, 2024
Aug 6, 2024
Aug 6, 2024
Aug 6, 2024
Aug 6, 2024
Aug 6, 2024
Aug 6, 2024
Aug 6, 2024
Aug 6, 2024
Aug 6, 2024
Aug 6, 2024
Aug 6, 2024
Aug 6, 2024
Aug 6, 2024
Aug 6, 2024
Aug 6, 2024
Aug 6, 2024
Aug 6, 2024
Aug 6, 2024
Aug 6, 2024
Nov 21, 2023
Oct 12, 2023
Aug 17, 2023
(Electronic) Receipt
Search/Exam
Aug 17, 2023
Filing of the translations of the claims
Search/Exam
Aug 17, 2023
French translation of claims
Search/Exam
Aug 17, 2023
German translation of the claims
Search/Exam
Aug 17, 2023
Letter accompanying subsequently filed items
Search/Exam
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Intention to grant (signatures)
Search/Exam
Apr 14, 2023
Text intended for grant (clean copy)
Search/Exam
Apr 14, 2023
Mar 24, 2023
Mar 20, 2023
Letter accompanying subsequently filed items
Search/Exam
Mar 20, 2023
Mar 16, 2023
(Electronic) Receipt
Search/Exam
Mar 16, 2023
Amended claims with annotations
Search/Exam
Mar 16, 2023
Amended description with annotations
Search/Exam
Mar 16, 2023
Claims
Search/Exam
Mar 16, 2023
Description
Search/Exam
Mar 16, 2023
Letter accompanying subsequently filed items
Search/Exam
Mar 16, 2023
Nov 25, 2022
Annex to the communication
Search/Exam
Nov 25, 2022
Communication from the Examining Division
Search/Exam
Nov 18, 2022
Examination started
Search/Exam
Jan 21, 2022
(Electronic) Receipt
Search/Exam
Jan 21, 2022
Jan 21, 2022
Amended claims with annotations
Search/Exam
Jan 21, 2022
Amendments received before examination
Search/Exam
Jan 21, 2022
Letter accompanying subsequently filed items
Search/Exam
Oct 12, 2021
Sep 22, 2021
Sep 22, 2021
European search opinion
Search/Exam
Sep 22, 2021
Information on Search Strategy
Search/Exam
Sep 22, 2021
Supplementary European search report
Search/Exam
Jul 22, 2021
(Electronic) Receipt
Search/Exam
Jul 22, 2021
Letter accompanying subsequently filed items
Search/Exam
Jul 22, 2021
Letter concerning search matters
Search/Exam
May 20, 2021
May 20, 2021
Information on Search Strategy
Search/Exam
May 20, 2021
Partial European search report
Search/Exam
May 20, 2021
May 7, 2021
Search started
Search/Exam
Jul 8, 2020
Notification of forthcoming publication
Search/Exam
May 7, 2020
May 4, 2020
Communication to designated inventor
Search/Exam
Apr 14, 2020
Apr 14, 2020
Feb 13, 2020
Information regarding early processing
Search/Exam
Feb 7, 2020
Information on entry into European phase
Search/Exam
Feb 6, 2020
(Electronic) Receipt
Search/Exam
Feb 6, 2020
Abstract
Search/Exam
Feb 6, 2020
Claims
Search/Exam
Feb 6, 2020
Description
Search/Exam
Feb 6, 2020
Drawings
Search/Exam
Feb 6, 2020
Request for entry into the European phase
Search/Exam
May 9, 2019
May 9, 2019
Apr 4, 2019
Copy of the international search report
Search/Exam
Apr 4, 2019
Apr 4, 2019
International publication pamphlet
Search/Exam