The weekly litigation news digest is live. Subscribe now
The patent EP3318229 was granted to Unicharm on Sep 23, 2020. The application was filed on May 13, 2016 under application number EP16817570A. The patent is currently recorded with a legal status of "Revoked".

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 |
|---|---|---|---|
| THE PROCTER & GAMBLE | Jun 22, 2021 | ELKINGTON AND FIFE | ADMISSIBLE |
| ESSITY HYGIENE AND HEALTH AKTIEBOLAG | Jun 21, 2021 | HOFFMANN EITLE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | JP2002522117 |
| INTERNATIONAL-SEARCH-REPORT | JP2004105697 |
| INTERNATIONAL-SEARCH-REPORT | JP2007020658 |
| INTERNATIONAL-SEARCH-REPORT | JP2007061462 |
| INTERNATIONAL-SEARCH-REPORT | JP2013048787 |
| INTERNATIONAL-SEARCH-REPORT | JPH11290377 |
| OPPOSITION | EP1767176 |
| OPPOSITION | EP1902694 |
| OPPOSITION | JP2007097920 |
| OPPOSITION | JPH10277092 |
| OPPOSITION | US2001003153 |
| OPPOSITION | US6248097 |
| OPPOSITION | US7435243 |
| OPPOSITION | US8313792 |
| OPPOSITION | WO0007534 |
| SEARCH | US2011196327 |
| SEARCH | US6248097 |
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
May 30, 2025
May 30, 2025
May 30, 2025
May 30, 2025
May 6, 2025
May 6, 2025
May 6, 2025
May 6, 2025
Apr 15, 2025
Apr 15, 2025
Apr 9, 2025
Apr 9, 2025
Apr 9, 2025
Apr 3, 2025
(Electronic) Receipt
Appeal
Apr 3, 2025
Apr 3, 2025
Apr 3, 2025
Apr 3, 2025
Apr 3, 2025
Apr 2, 2025
Apr 2, 2025
Apr 2, 2025
Mar 28, 2025
Mar 28, 2025
Mar 28, 2025
Mar 28, 2025
Mar 25, 2025
(Electronic) Receipt
Appeal
Mar 25, 2025
(Electronic) Receipt
Appeal
Mar 25, 2025
Mar 25, 2025
Mar 25, 2025
Mar 25, 2025
Feb 13, 2025
Feb 13, 2025
Feb 12, 2025
Feb 12, 2025
Jan 31, 2025
(Electronic) Receipt
Appeal
Jan 31, 2025
Jan 31, 2025
Jan 30, 2025
(Electronic) Receipt
Appeal
Jan 30, 2025
(Electronic) Receipt
Appeal
Jan 30, 2025
Jan 30, 2025
Jan 30, 2025
Jan 30, 2025
Jan 30, 2025
Jun 13, 2024
Jun 13, 2024
Jun 13, 2024
Jun 10, 2024
Mar 28, 2024
Mar 28, 2024
Mar 25, 2024
(Electronic) Receipt
Appeal
Mar 25, 2024
Mar 25, 2024
Feb 16, 2024
Feb 16, 2024
Feb 12, 2024
(Electronic) Receipt
Appeal
Feb 12, 2024
Feb 12, 2024
Feb 5, 2024
Jan 8, 2024
Jan 8, 2024
Dec 29, 2023
(Electronic) Receipt
Appeal
Dec 29, 2023
Dec 29, 2023
Dec 29, 2023
Dec 29, 2023
Dec 29, 2023
Dec 29, 2023
Dec 29, 2023
Dec 29, 2023
Dec 29, 2023
Dec 29, 2023
Dec 29, 2023
Dec 29, 2023
Dec 29, 2023
Dec 29, 2023
Dec 29, 2023
Dec 29, 2023
Dec 29, 2023
Dec 29, 2023
Dec 29, 2023
Dec 29, 2023
Dec 29, 2023
Dec 29, 2023
Dec 29, 2023
Dec 29, 2023
Dec 29, 2023
Reply to appeal
Appeal
Aug 21, 2023
Aug 21, 2023
Aug 21, 2023
Aug 15, 2023
(Electronic) Receipt
Appeal
Aug 15, 2023
Aug 15, 2023
Aug 15, 2023
Aug 15, 2023
Aug 15, 2023
Aug 15, 2023
Aug 15, 2023
Aug 15, 2023
Aug 15, 2023
Aug 15, 2023
Aug 15, 2023
Aug 15, 2023
Aug 15, 2023
Aug 15, 2023
Aug 3, 2023
(Electronic) Receipt
Appeal
Aug 3, 2023
Aug 3, 2023
Aug 3, 2023
Aug 3, 2023
Aug 3, 2023
Aug 3, 2023
Aug 3, 2023
Aug 3, 2023
Aug 3, 2023
Aug 3, 2023
Aug 3, 2023
Aug 3, 2023
Aug 3, 2023
May 24, 2023
May 23, 2023
May 18, 2023
(Electronic) Receipt
Appeal
May 18, 2023
May 18, 2023
Notice of appeal
Appeal
May 11, 2023
(Electronic) Receipt
Appeal
May 11, 2023
May 11, 2023
Notice of appeal
Appeal
Apr 19, 2023
Apr 19, 2023
Apr 19, 2023
Apr 17, 2023
Apr 11, 2023
Apr 6, 2023
Apr 6, 2023
Apr 6, 2023
Apr 6, 2023
Apr 6, 2023
Apr 6, 2023
Apr 6, 2023
Means of redress
OPPO
Apr 6, 2023
Apr 6, 2023
Apr 6, 2023
Apr 6, 2023
Apr 6, 2023
Apr 6, 2023
Apr 6, 2023
Apr 6, 2023
Mar 16, 2023
Jan 23, 2023
Jan 23, 2023
Jan 23, 2023
Jan 23, 2023
Jan 16, 2023
Jan 16, 2023
Jan 16, 2023
Jan 16, 2023
Jan 16, 2023
Jan 13, 2023
Jan 13, 2023
Jan 13, 2023
Jan 13, 2023
Jan 9, 2023
Jan 9, 2023
Jan 9, 2023
Jan 9, 2023
Jan 9, 2023
Jan 4, 2023
Jan 4, 2023
Dec 21, 2022
Dec 21, 2022
Dec 21, 2022
Dec 8, 2022
Dec 8, 2022
Dec 8, 2022
Dec 6, 2022
Dec 6, 2022
Nov 29, 2022
Nov 29, 2022
Nov 29, 2022
Oct 27, 2022
Aug 22, 2022
Aug 19, 2022
Aug 19, 2022
Aug 19, 2022
Aug 19, 2022
Aug 19, 2022
Aug 19, 2022
Aug 19, 2022
Aug 19, 2022
Aug 19, 2022
Aug 19, 2022
Aug 19, 2022
Aug 19, 2022
Jan 20, 2022
Jan 20, 2022
Jan 17, 2022
Jan 17, 2022
Jan 17, 2022
Nov 18, 2021
Nov 18, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Jul 5, 2021
Jul 5, 2021
Jul 5, 2021
Jun 28, 2021
Jun 25, 2021
Jun 22, 2021
Jun 22, 2021
Jun 22, 2021
Jun 22, 2021
Jun 22, 2021
Jun 22, 2021
Jun 22, 2021
Jun 22, 2021
Jun 22, 2021
Jun 22, 2021
Jun 22, 2021
Jun 21, 2021
Jun 21, 2021
Jun 21, 2021
Jun 21, 2021
Jun 21, 2021
Jun 21, 2021
Jun 21, 2021
Jun 21, 2021
Oct 5, 2020
Aug 27, 2020
Decision to grant a European patent
Search/Exam
Aug 18, 2020
(Electronic) Receipt
Search/Exam
Aug 18, 2020
Filing of the translations of the claims
Search/Exam
Aug 18, 2020
French translation of claims
Search/Exam
Aug 18, 2020
German translation of the claims
Search/Exam
Aug 18, 2020
Letter accompanying subsequently filed items
Search/Exam
May 27, 2020
May 27, 2020
May 27, 2020
Intention to grant (signatures)
Search/Exam
May 27, 2020
Text intended for grant (clean copy)
Search/Exam
May 27, 2020
May 6, 2020
Examination started
Search/Exam
Oct 25, 2018
(Electronic) Receipt
Search/Exam
Oct 25, 2018
Oct 25, 2018
Amended claims with annotations
Search/Exam
Oct 25, 2018
Oct 25, 2018
Amended description with annotations
Search/Exam
Oct 25, 2018
Oct 25, 2018
Amendments received before examination
Search/Exam
Oct 25, 2018
Letter accompanying subsequently filed items
Search/Exam
Apr 17, 2018
Apr 11, 2018
Notification of forthcoming publication
Search/Exam
Mar 29, 2018
Mar 29, 2018
European search opinion
Search/Exam
Mar 29, 2018
Information on Search Strategy
Search/Exam
Mar 29, 2018
Supplementary European search report
Search/Exam
Mar 15, 2018
Search started
Search/Exam
Feb 2, 2018
Communication to designated inventor
Search/Exam
Feb 2, 2018
Communication to designated inventor
Search/Exam
Feb 2, 2018
Communication to designated inventor
Search/Exam
Jan 16, 2018
Jan 16, 2018
Dec 22, 2017
(Electronic) Receipt
Search/Exam
Dec 22, 2017
Abstract
Search/Exam
Dec 22, 2017
Dec 22, 2017
Amended claims with annotations
Search/Exam
Dec 22, 2017
Claims
Search/Exam
Dec 22, 2017
Description
Search/Exam
Dec 22, 2017
Drawings
Search/Exam
Dec 22, 2017
Request for entry into the European phase
Search/Exam
Nov 10, 2017
Information on entry into European phase
Search/Exam
Jan 23, 2017
Jan 5, 2017
Copy of the international search report
Search/Exam
Jan 5, 2017
Jan 5, 2017
International publication pamphlet
Search/Exam