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The patent EP3109273 was granted to Arkema France on Jan 4, 2023. The application was filed on Jun 24, 2016 under application number EP16176258A. 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 |
|---|---|---|---|
| EVONIK OPERATIONS | Sep 29, 2023 | F & E PATENT | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP0179700 |
| DESCRIPTION | EP0197845 |
| DESCRIPTION | EP0613919 |
| DESCRIPTION | EP0679119 |
| DESCRIPTION | EP1482011 |
| DESCRIPTION | FR2846332 |
| DESCRIPTION | JP2004346274 |
| DESCRIPTION | JP2004352794 |
| OPPOSITION | DE112005001163T |
| OPPOSITION | EP0384163 |
| OPPOSITION | EP1518901 |
| OPPOSITION | EP1568487 |
| OPPOSITION | EP1671785 |
| OPPOSITION | EP2036939 |
| OPPOSITION | EP2684478 |
| OPPOSITION | FR2273021 |
| OPPOSITION | FR2401947 |
| OPPOSITION | FR3011550 |
| OPPOSITION | JP2009234196 |
| OPPOSITION | US2005165210 |
| OPPOSITION | US2009023868 |
| OPPOSITION | US2016376483 |
| OPPOSITION | US6420045 |
| OPPOSITION | WO0216472 |
| OPPOSITION | WO2008064950 |
| OPPOSITION | WO2008071894 |
| OPPOSITION | WO2009094127 |
| OPPOSITION | WO9512481 |
| SEARCH | FR2897355 |
| SEARCH | FR3011550 |
| SEARCH | WO03050159 |
| SEARCH | WO2004037898 |
| SEARCH | WO9512481 |
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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Dec 2, 2025
Nov 28, 2025
(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Oct 20, 2025
(Electronic) Receipt
Appeal
Oct 20, 2025
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Reply to appeal
Appeal
Oct 20, 2025
Reply to appeal
Appeal
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(Electronic) Receipt
Appeal
Jun 13, 2025
(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Apr 14, 2025
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Notice of appeal
Appeal
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(Electronic) Receipt
Appeal
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Notice of appeal
Appeal
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Letter accompanying subsequently filed items
Search/Exam
Apr 1, 2025
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Means of redress
OPPO
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Dec 8, 2022
Decision to grant a European patent
Search/Exam
Nov 25, 2022
(Electronic) Receipt
Search/Exam
Nov 25, 2022
English translation of the claims
Search/Exam
Nov 25, 2022
Filing of the translations of the claims
Search/Exam
Nov 25, 2022
German translation of the claims
Search/Exam
Nov 25, 2022
Letter accompanying subsequently filed items
Search/Exam
Aug 5, 2022
Aug 2, 2022
(Electronic) Receipt
Search/Exam
Aug 2, 2022
Letter accompanying subsequently filed items
Search/Exam
Aug 2, 2022
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Intention to grant (signatures)
Search/Exam
Jul 26, 2022
Text intended for grant (clean copy)
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Jul 26, 2022
Mar 22, 2021
(Electronic) Receipt
Search/Exam
Mar 22, 2021
Amended claims with annotations
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Mar 22, 2021
Claims
Search/Exam
Mar 22, 2021
Letter accompanying subsequently filed items
Search/Exam
Mar 22, 2021
Jan 18, 2021
Jan 12, 2021
(Electronic) Receipt
Search/Exam
Jan 12, 2021
Letter accompanying subsequently filed items
Search/Exam
Jan 12, 2021
Sep 10, 2020
Annex to the communication
Search/Exam
Sep 10, 2020
Communication from the Examining Division
Search/Exam
Sep 3, 2020
Examination started
Search/Exam
Oct 20, 2017
Decision to allow further processing
Search/Exam
Oct 3, 2017
(Electronic) Receipt
Search/Exam
Oct 3, 2017
Oct 3, 2017
Amended claims with annotations
Search/Exam
Oct 3, 2017
Letter accompanying subsequently filed items
Search/Exam
Oct 3, 2017
Request for further processing
Search/Exam
Aug 4, 2017
Jan 4, 2017
Nov 30, 2016
Notification of forthcoming publication
Search/Exam
Nov 3, 2016
Refund of fees
Search/Exam
Oct 28, 2016
Oct 28, 2016
European search opinion
Search/Exam
Oct 28, 2016
European search report
Search/Exam
Oct 28, 2016
Information on Search Strategy
Search/Exam
Oct 26, 2016
Communication to designated inventor
Search/Exam
Oct 25, 2016
Priority search results copy provided by EPO
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Oct 17, 2016
(Electronic) Receipt
Search/Exam
Oct 17, 2016
Letter accompanying subsequently filed items
Search/Exam
Oct 17, 2016
Letter concerning the inventor
Search/Exam
Oct 11, 2016
Search started
Search/Exam
Sep 13, 2016
Sep 6, 2016
Letter which had not been notified
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Aug 18, 2016
Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Aug 18, 2016
Communication to designated inventor
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Aug 18, 2016
Communication to designated inventor
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Aug 18, 2016
Communication to designated inventor
Search/Exam
Aug 18, 2016
Communication to designated inventor
Search/Exam
Jul 27, 2016
(Electronic) Receipt
Search/Exam
Jul 27, 2016
Designation of inventor
Search/Exam
Jul 27, 2016
Letter accompanying subsequently filed items
Search/Exam
Jul 27, 2016
Letter concerning the inventor
Search/Exam
Jul 11, 2016
Letter concerning the priority
Search/Exam
Jul 11, 2016
Priority document
Search/Exam
Jul 8, 2016
Deficiency in designation of inventor
Search/Exam
Jun 24, 2016
Abstract
Search/Exam
Jun 24, 2016
Jun 24, 2016
Claims
Search/Exam
Jun 24, 2016
Description
Search/Exam
Jun 24, 2016
Drawings
Search/Exam
Jun 24, 2016
Request for grant of a European patent
Search/Exam