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The patent EP4079812 was granted to Toray Industries on Aug 21, 2024. The application was filed on Nov 9, 2020 under application number EP20902569A. 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 |
|---|---|---|---|
| ARKEMA FRANCE | May 20, 2025 | ARKEMA PATENT | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JP2006307178 |
| DESCRIPTION | JP2008101035 |
| DESCRIPTION | JP2013209629 |
| DESCRIPTION | WO2014148641 |
| INTERNATIONAL-SEARCH-REPORT | JP2013011050 |
| INTERNATIONAL-SEARCH-REPORT | JP2014159560 |
| INTERNATIONAL-SEARCH-REPORT | JP2017114107 |
| INTERNATIONAL-SEARCH-REPORT | JPH10168227 |
| INTERNATIONAL-SEARCH-REPORT | WO2016051562 |
| OPPOSITION | CN103772919 |
| OPPOSITION | JP2001146554 |
| OPPOSITION | JP2013209629 |
| OPPOSITION | US2005182166 |
| OPPOSITION | US2008220235 |
| OPPOSITION | US2010227957 |
| OPPOSITION | US2016152800 |
| OPPOSITION | WO2021124726 |
| SEARCH | JP2012056232 |
| SEARCH | JP2013011050 |
| SEARCH | JP2013166922 |
| SEARCH | JP2013209629 |
| SEARCH | JP2015143328 |
| SEARCH | JP2017114107 |
| SEARCH | JP2018059087 |
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.
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Description
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Decision to grant a European patent
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Jul 16, 2024
(Electronic) Receipt
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Jul 16, 2024
Filing of the translations of the claims
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Jul 16, 2024
French translation of claims
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Jul 16, 2024
German translation of the claims
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Jul 16, 2024
Letter accompanying subsequently filed items
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Intention to grant (signatures)
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Apr 29, 2024
Text intended for grant (clean copy)
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Apr 12, 2024
Examination started
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Mar 20, 2024
(Electronic) Receipt
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Amended description with annotations
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Mar 20, 2024
Amendments received before examination
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Mar 20, 2024
Letter accompanying subsequently filed items
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European search opinion
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Dec 11, 2023
Information on Search Strategy
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Dec 11, 2023
Supplementary European search report
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Sep 28, 2022
Notification of forthcoming publication
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Aug 23, 2022
(Electronic) Receipt
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Aug 23, 2022
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Amended claims with annotations
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Aug 23, 2022
Amendments received before examination
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Aug 23, 2022
Letter accompanying subsequently filed items
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Change to the inventor details
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May 2, 2022
Information on entry into European phase
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Apr 25, 2022
(Electronic) Receipt
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Apr 25, 2022
Abstract
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Apr 25, 2022
Claims
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Apr 25, 2022
Description
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Apr 25, 2022
Drawings
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Apr 25, 2022
Request for entry into the European phase
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Jul 12, 2021
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Copy of the international search report
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Jun 24, 2021
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International publication pamphlet
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