The weekly litigation news digest is live. Subscribe now
The patent EP3431281 was granted to Nitto Denko on Oct 16, 2024. The application was filed on Mar 3, 2017 under application number EP17766401A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 |
|---|---|---|---|
| FITESA GERMANY | Feb 17, 2022 | VAN WIJK | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2011177735 |
| INTERNATIONAL-SEARCH-REPORT | JP2003192580 |
| INTERNATIONAL-SEARCH-REPORT | JP2009519844 |
| INTERNATIONAL-SEARCH-REPORT | JP2013078928 |
| INTERNATIONAL-SEARCH-REPORT | JP2015529581 |
| OPPOSITION | JP2010201623 |
| OPPOSITION | US2007141352 |
| OPPOSITION | US2007254176 |
| OPPOSITION | US2014041786 |
| OPPOSITION | US2014330236 |
| OPPOSITION | US6472084 |
| SEARCH | JP2011083970 |
| SEARCH | JP2016007754 |
| SEARCH | JPH07148240 |
| SEARCH | JPH08217667 |
| SEARCH | US2009191779 |
| SEARCH | WO2007133128 |
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 19, 2024
Sep 19, 2024
Apr 11, 2024
Apr 11, 2024
Apr 11, 2024
Apr 11, 2024
Apr 11, 2024
Mar 13, 2024
Mar 13, 2024
Mar 13, 2024
Mar 8, 2024
Dec 15, 2023
Dec 15, 2023
Dec 15, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Means of redress
OPPO
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Nov 29, 2023
Nov 9, 2023
Oct 12, 2023
Oct 4, 2023
Oct 4, 2023
Oct 4, 2023
Sep 18, 2023
Sep 8, 2023
Sep 8, 2023
Sep 8, 2023
Sep 8, 2023
Sep 8, 2023
Sep 8, 2023
Sep 8, 2023
Sep 8, 2023
Sep 8, 2023
Sep 8, 2023
Sep 8, 2023
Sep 8, 2023
Sep 8, 2023
Aug 1, 2023
Jul 24, 2023
Jul 24, 2023
Jul 24, 2023
Jul 20, 2023
Jul 14, 2023
Jul 14, 2023
Jul 14, 2023
Jul 14, 2023
Jul 14, 2023
Dec 16, 2022
Dec 16, 2022
Nov 22, 2022
Nov 22, 2022
Nov 22, 2022
Nov 10, 2022
Nov 10, 2022
Nov 10, 2022
Nov 10, 2022
Nov 10, 2022
Nov 10, 2022
Sep 28, 2022
Sep 20, 2022
Sep 20, 2022
Sep 20, 2022
Sep 20, 2022
Jul 27, 2022
Jul 21, 2022
Jul 21, 2022
Jul 21, 2022
Jul 21, 2022
Jul 21, 2022
Jul 21, 2022
Jul 21, 2022
Jul 21, 2022
Jul 21, 2022
Jul 21, 2022
Jul 21, 2022
Jul 21, 2022
Jul 21, 2022
Jul 21, 2022
Jul 21, 2022
Mar 11, 2022
Mar 11, 2022
Feb 23, 2022
Feb 17, 2022
Feb 17, 2022
Feb 17, 2022
Feb 17, 2022
Feb 17, 2022
Feb 17, 2022
Feb 17, 2022
Feb 17, 2022
Feb 17, 2022
Feb 17, 2022
Feb 17, 2022
Feb 17, 2022
Jun 1, 2021
Apr 22, 2021
Decision to grant a European patent
Search/Exam
Apr 8, 2021
(Electronic) Receipt
Search/Exam
Apr 8, 2021
Filing of the translations of the claims
Search/Exam
Apr 8, 2021
French translation of claims
Search/Exam
Apr 8, 2021
German translation of the claims
Search/Exam
Apr 8, 2021
Letter accompanying subsequently filed items
Search/Exam
Dec 9, 2020
Dec 9, 2020
Dec 9, 2020
Intention to grant (signatures)
Search/Exam
Dec 9, 2020
Text intended for grant (clean copy)
Search/Exam
Dec 9, 2020
Jul 13, 2020
(Electronic) Receipt
Search/Exam
Jul 13, 2020
Amended claims with annotations
Search/Exam
Jul 13, 2020
Amended description with annotations
Search/Exam
Jul 13, 2020
Claims
Search/Exam
Jul 13, 2020
Description
Search/Exam
Jul 13, 2020
Letter accompanying subsequently filed items
Search/Exam
Jul 13, 2020
Mar 12, 2020
Annex to the communication
Search/Exam
Mar 12, 2020
Communication from the Examining Division
Search/Exam
Mar 6, 2020
Examination started
Search/Exam
Feb 20, 2020
Feb 20, 2020
Amended claims with annotations
Search/Exam
Feb 20, 2020
Amendments received before examination
Search/Exam
Aug 30, 2019
Aug 14, 2019
Aug 14, 2019
European search opinion
Search/Exam
Aug 14, 2019
Information on Search Strategy
Search/Exam
Aug 14, 2019
Supplementary European search report
Search/Exam
Jan 4, 2019
Notification of forthcoming publication
Search/Exam
Dec 3, 2018
Dec 3, 2018
Amended claims with annotations
Search/Exam
Dec 3, 2018
Amendments received before examination
Search/Exam
Oct 26, 2018
Oct 24, 2018
Communication to designated inventor
Search/Exam
Oct 24, 2018
Communication to designated inventor
Search/Exam
Oct 24, 2018
Communication to designated inventor
Search/Exam
Oct 10, 2018
(Electronic) Receipt
Search/Exam
Oct 10, 2018
Abstract
Search/Exam
Oct 10, 2018
Claims
Search/Exam
Oct 10, 2018
Description
Search/Exam
Oct 10, 2018
Drawings
Search/Exam
Oct 10, 2018
Request for entry into the European phase
Search/Exam
Oct 3, 2018
Oct 3, 2018
Jul 25, 2018
Information on entry into European phase
Search/Exam
Oct 10, 2017
Sep 21, 2017
Copy of the international search report
Search/Exam
Sep 21, 2017
Sep 21, 2017
International publication pamphlet
Search/Exam