The weekly litigation news digest is live. Subscribe now
The patent EP3415129 was granted to Unicharm on May 12, 2021. The application was filed on Mar 1, 2016 under application number EP16892527A. 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 |
|---|---|---|---|
| PROCTER & GAMBLE | Feb 14, 2022 | ELKINGTON AND FIFE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JP2002136545 |
| INTERNATIONAL-SEARCH-REPORT | JP2003250826 |
| INTERNATIONAL-SEARCH-REPORT | JP2005500868 |
| INTERNATIONAL-SEARCH-REPORT | JP2009061046 |
| INTERNATIONAL-SEARCH-REPORT | JP2014004258 |
| INTERNATIONAL-SEARCH-REPORT | JP2015134020 |
| INTERNATIONAL-SEARCH-REPORT | JP2015532183 |
| INTERNATIONAL-SEARCH-REPORT | US2003062113 |
| INTERNATIONAL-SEARCH-REPORT | WO2004031053 |
| OPPOSITION | EP1205171 |
| OPPOSITION | EP2301500 |
| OPPOSITION | US2002040215 |
| OPPOSITION | US2002123730 |
| OPPOSITION | US2003168614 |
| OPPOSITION | US2004129592 |
| OPPOSITION | US2014113793 |
| OPPOSITION | US5827259 |
| OPPOSITION | US6723035 |
| SEARCH | EP1205171 |
| SEARCH | US2002123730 |
| SEARCH | US2003062113 |
| SEARCH | US2004129592 |
| SEARCH | US2014113793 |
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
Sep 30, 2025
Sep 30, 2025
Sep 15, 2025
Sep 4, 2025
Sep 4, 2025
Aug 22, 2025
Aug 20, 2025
Aug 20, 2025
Aug 20, 2025
Aug 20, 2025
Aug 19, 2025
(Electronic) Receipt
Appeal
Aug 19, 2025
Aug 19, 2025
Aug 14, 2025
Aug 14, 2025
Jul 9, 2025
Jul 9, 2025
Jul 3, 2025
Jan 30, 2025
Jan 24, 2025
(Electronic) Receipt
Appeal
Jan 24, 2025
Jan 24, 2025
Jan 20, 2025
Jan 14, 2025
(Electronic) Receipt
Appeal
Jan 14, 2025
Jan 14, 2025
Dec 16, 2024
Dec 16, 2024
Dec 11, 2024
Nov 5, 2024
Oct 29, 2024
(Electronic) Receipt
Appeal
Oct 29, 2024
Oct 29, 2024
Aug 28, 2024
Aug 22, 2024
(Electronic) Receipt
Appeal
Aug 22, 2024
Aug 22, 2024
Aug 22, 2024
Aug 22, 2024
Aug 22, 2024
Aug 22, 2024
Aug 22, 2024
Aug 22, 2024
Aug 22, 2024
Aug 22, 2024
Aug 22, 2024
Aug 22, 2024
Aug 22, 2024
Aug 22, 2024
Aug 22, 2024
Aug 22, 2024
Aug 22, 2024
Aug 22, 2024
Aug 22, 2024
Aug 22, 2024
Aug 22, 2024
Aug 22, 2024
Aug 22, 2024
Aug 22, 2024
Reply to appeal
Appeal
Jun 27, 2024
Apr 25, 2024
Apr 19, 2024
(Electronic) Receipt
Appeal
Apr 19, 2024
Apr 19, 2024
Apr 19, 2024
Apr 19, 2024
Apr 19, 2024
Apr 19, 2024
Apr 19, 2024
Apr 19, 2024
Apr 19, 2024
Apr 19, 2024
Apr 19, 2024
Apr 19, 2024
Apr 19, 2024
Feb 19, 2024
Feb 19, 2024
Feb 13, 2024
(Electronic) Receipt
Appeal
Feb 13, 2024
Feb 13, 2024
Notice of appeal
Appeal
Jan 2, 2024
Jan 2, 2024
Jan 2, 2024
Dec 27, 2023
Dec 19, 2023
Dec 19, 2023
Dec 19, 2023
Dec 19, 2023
Dec 19, 2023
Means of redress
OPPO
Dec 19, 2023
Dec 19, 2023
Dec 19, 2023
Dec 19, 2023
Dec 19, 2023
Dec 19, 2023
Dec 15, 2023
Nov 28, 2023
Oct 6, 2023
Sep 28, 2023
Sep 28, 2023
Sep 28, 2023
Sep 28, 2023
Sep 28, 2023
Sep 28, 2023
Sep 28, 2023
Sep 28, 2023
Sep 28, 2023
Jan 13, 2023
Jan 13, 2023
Jan 13, 2023
Jan 10, 2023
Jan 2, 2023
Jan 2, 2023
Jan 2, 2023
Jan 2, 2023
Jan 2, 2023
Jan 2, 2023
Jan 2, 2023
Jul 8, 2022
Jul 4, 2022
Jul 4, 2022
Jul 4, 2022
Jul 4, 2022
Jul 4, 2022
Jul 4, 2022
Jul 4, 2022
Jul 4, 2022
Jul 4, 2022
Jul 4, 2022
Jul 4, 2022
Jul 4, 2022
Jul 4, 2022
Jul 4, 2022
Jul 4, 2022
Jul 4, 2022
Jul 4, 2022
Jul 4, 2022
Jul 4, 2022
Jul 4, 2022
Jul 4, 2022
Jul 4, 2022
Jul 4, 2022
Jul 4, 2022
Jul 4, 2022
Feb 25, 2022
Feb 25, 2022
Feb 18, 2022
Feb 14, 2022
Feb 14, 2022
Feb 14, 2022
Feb 14, 2022
Feb 14, 2022
Feb 14, 2022
Feb 14, 2022
Feb 14, 2022
Feb 14, 2022
Feb 14, 2022
Feb 14, 2022
Feb 14, 2022
May 26, 2021
Apr 15, 2021
Decision to grant a European patent
Search/Exam
Apr 6, 2021
(Electronic) Receipt
Search/Exam
Apr 6, 2021
Filing of the translations of the claims
Search/Exam
Apr 6, 2021
French translation of claims
Search/Exam
Apr 6, 2021
German translation of the claims
Search/Exam
Apr 6, 2021
Letter accompanying subsequently filed items
Search/Exam
Dec 22, 2020
Dec 22, 2020
Dec 22, 2020
Intention to grant (signatures)
Search/Exam
Dec 22, 2020
Text intended for grant (clean copy)
Search/Exam
Dec 22, 2020
Jul 22, 2020
(Electronic) Receipt
Search/Exam
Jul 22, 2020
Amended claims with annotations
Search/Exam
Jul 22, 2020
Amended claims with annotations
Search/Exam
Jul 22, 2020
Amended description with annotations
Search/Exam
Jul 22, 2020
Amended description with annotations
Search/Exam
Jul 22, 2020
Claims
Search/Exam
Jul 22, 2020
Claims
Search/Exam
Jul 22, 2020
Description
Search/Exam
Jul 22, 2020
Description
Search/Exam
Jul 22, 2020
Letter accompanying subsequently filed items
Search/Exam
Jul 22, 2020
Mar 23, 2020
Annex to the communication
Search/Exam
Mar 23, 2020
Communication from the Examining Division
Search/Exam
Mar 18, 2020
Examination started
Search/Exam
Aug 9, 2019
(Electronic) Receipt
Search/Exam
Aug 9, 2019
Aug 9, 2019
Aug 9, 2019
Amended claims with annotations
Search/Exam
Aug 9, 2019
Amended claims with annotations
Search/Exam
Aug 9, 2019
Amended description with annotations
Search/Exam
Aug 9, 2019
Amendments received before examination
Search/Exam
Aug 9, 2019
Description
Search/Exam
Aug 9, 2019
Letter accompanying subsequently filed items
Search/Exam
Feb 5, 2019
Jan 17, 2019
Jan 17, 2019
European search opinion
Search/Exam
Jan 17, 2019
Information on Search Strategy
Search/Exam
Jan 17, 2019
Supplementary European search report
Search/Exam
Jan 7, 2019
Search started
Search/Exam
Nov 21, 2018
Notification of forthcoming publication
Search/Exam
Oct 4, 2018
Oct 1, 2018
Communication to designated inventor
Search/Exam
Oct 1, 2018
Sep 20, 2018
Sep 20, 2018
Sep 12, 2018
(Electronic) Receipt
Search/Exam
Sep 12, 2018
Abstract
Search/Exam
Sep 12, 2018
Claims
Search/Exam
Sep 12, 2018
Description
Search/Exam
Sep 12, 2018
Drawings
Search/Exam
Sep 12, 2018
Drawings
Search/Exam
Sep 12, 2018
Request for entry into the European phase
Search/Exam
Jul 13, 2018
Information on entry into European phase
Search/Exam
Sep 8, 2017
Sep 8, 2017
Copy of the international search report
Search/Exam
Sep 8, 2017
Sep 8, 2017
Sep 8, 2017
Sep 8, 2017
International publication pamphlet
Search/Exam