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The patent EP3753991 was granted to Toyo Seikan Group on Mar 6, 2024. The application was filed on Nov 13, 2018 under application number EP18906687A. 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 |
|---|---|---|---|
| PPG INDUSTRIES | Dec 6, 2024 | APPLEYARD LEES | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JP2003026992 |
| DESCRIPTION | JP4228585B |
| EXAMINATION | EP2681260 |
| INTERNATIONAL-SEARCH-REPORT | JP2003026992 |
| INTERNATIONAL-SEARCH-REPORT | JP2003321646 |
| INTERNATIONAL-SEARCH-REPORT | JP2004107568 |
| INTERNATIONAL-SEARCH-REPORT | JP2004339493 |
| INTERNATIONAL-SEARCH-REPORT | JP2005194494 |
| INTERNATIONAL-SEARCH-REPORT | JP2008007627 |
| INTERNATIONAL-SEARCH-REPORT | JP2013249376 |
| INTERNATIONAL-SEARCH-REPORT | JP2014514370 |
| INTERNATIONAL-SEARCH-REPORT | JPS5117970 |
| INTERNATIONAL-SEARCH-REPORT | WO2018207891 |
| OPPOSITION | EP2380937 |
| OPPOSITION | EP2857465 |
| OPPOSITION | EP3623435 |
| OPPOSITION | EP3753991 |
| OPPOSITION | JP2003026992 |
| OPPOSITION | JP2003321646 |
| OPPOSITION | JP2008007627 |
| OPPOSITION | JP2018023279 |
| OPPOSITION | WO02098941 |
| OPPOSITION | WO2012118500 |
| OPPOSITION | WO2017122169 |
| OPPOSITION | WO2017122170 |
| OPPOSITION | WO2018111922 |
| OPPOSITION | WO2018207891 |
| SEARCH | EP0792908 |
| SEARCH | EP2681260 |
| SEARCH | EP2857465 |
| SEARCH | EP3205494 |
| SEARCH | US2011195262 |
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
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Decision to grant a European patent
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Jan 30, 2024
(Electronic) Receipt
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Jan 30, 2024
Filing of the translations of the claims
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Jan 30, 2024
French translation of claims
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Jan 30, 2024
German translation of the claims
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Jan 30, 2024
Letter accompanying subsequently filed items
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Nov 14, 2023
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Intention to grant (signatures)
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Nov 14, 2023
Text intended for grant (clean copy)
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Oct 18, 2023
Examination started
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Apr 26, 2022
(Electronic) Receipt
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Apr 26, 2022
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Amended claims with annotations
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Apr 26, 2022
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Amended description with annotations
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Apr 26, 2022
Amendments received before examination
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Apr 26, 2022
Letter accompanying subsequently filed items
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Oct 26, 2021
Oct 6, 2021
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European search opinion
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Oct 6, 2021
Information on Search Strategy
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Oct 6, 2021
Supplementary European search report
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Sep 20, 2021
Document concerning representation
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Sep 19, 2021
Search started
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Mar 11, 2021
(Electronic) Receipt
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Mar 11, 2021
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Amended claims with annotations
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Mar 11, 2021
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Amended description with annotations
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Mar 11, 2021
Amendments received before examination
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Mar 11, 2021
Letter accompanying subsequently filed items
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Nov 25, 2020
Notification of forthcoming publication
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Sep 22, 2020
Sep 18, 2020
Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Sep 18, 2020
Communication to designated inventor
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Aug 31, 2020
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Aug 5, 2020
Information regarding early processing
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Jul 23, 2020
(Electronic) Receipt
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Jul 23, 2020
Abstract
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Jul 23, 2020
Claims
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Jul 23, 2020
Description
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Jul 23, 2020
Request for entry into the European phase
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Jun 26, 2020
Information on entry into European phase
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Sep 10, 2019
Aug 22, 2019
Copy of the international search report
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Aug 22, 2019
Aug 22, 2019
International publication pamphlet
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