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The patent EP3418323 was granted to Arkema France on Nov 20, 2019. The application was filed on Jun 21, 2018 under application number EP18178994A. The patent is currently recorded with a legal status of "Revoked".

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 | Aug 20, 2020 | GODEMEYER BLUM LENZE PATENTANWALTE PARTNERSCHAFT MBB WERKPATENT | ADMISSIBLE |
| SGL CARBON | Aug 20, 2020 | WSL PATENTANWALTE PARTNERSCHAFT MBB | ADMISSIBLE |
| NASH MATTHEWS | Aug 19, 2020 | APPLEYARD LEES | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | EP2725055 |
| OPPOSITION | FR3067968 |
| OPPOSITION | US2017037204 |
| OPPOSITION | US2017165875 |
| OPPOSITION | US5275883 |
| OPPOSITION | US5888580 |
| OPPOSITION | WO2017017388 |
| OPPOSITION | WO2018234436 |
| SEARCH | FR2997036 |
| SEARCH | FR2997089 |
| SEARCH | FR3017330 |
| SEARCH | WO2017017388 |
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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May 14, 2024
Refund of fees
Search/Exam
May 13, 2024
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(Electronic) Receipt
Appeal
May 7, 2024
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Withdrawal of an appeal
Appeal
May 5, 2024
(Electronic) Receipt
Search/Exam
May 5, 2024
Letter accompanying subsequently filed items
Search/Exam
Apr 12, 2024
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(Electronic) Receipt
Appeal
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Letter accompanying subsequently filed items
Search/Exam
Aug 29, 2023
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Feb 28, 2023
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Reply to appeal
Appeal
Feb 27, 2023
(Electronic) Receipt
Appeal
Feb 27, 2023
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Reply to appeal
Appeal
Feb 23, 2023
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(Electronic) Receipt
Appeal
Feb 20, 2023
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Reply to appeal
Appeal
Oct 21, 2022
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Jun 21, 2022
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Notice of appeal
Appeal
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Authorisation
OPPO
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Dec 2, 2019
Oct 24, 2019
Decision to grant a European patent
Search/Exam
Oct 11, 2019
(Electronic) Receipt
Search/Exam
Oct 11, 2019
English translation of the claims
Search/Exam
Oct 11, 2019
Filing of the translations of the claims
Search/Exam
Oct 11, 2019
German translation of the claims
Search/Exam
Oct 11, 2019
Letter accompanying subsequently filed items
Search/Exam
Oct 2, 2019
Oct 2, 2019
Oct 2, 2019
Intention to grant (signatures)
Search/Exam
Oct 2, 2019
Text intended for grant (clean copy)
Search/Exam
Oct 2, 2019
Jun 18, 2019
(Electronic) Receipt
Search/Exam
Jun 18, 2019
Amended claims with annotations
Search/Exam
Jun 18, 2019
Claims
Search/Exam
Jun 18, 2019
Letter accompanying subsequently filed items
Search/Exam
Jun 18, 2019
Mar 13, 2019
Annex to the communication
Search/Exam
Mar 13, 2019
Communication from the Examining Division
Search/Exam
Mar 7, 2019
Examination started
Search/Exam
Jan 17, 2019
(Electronic) Receipt
Search/Exam
Jan 17, 2019
Jan 17, 2019
Amended claims with annotations
Search/Exam
Jan 17, 2019
Jan 17, 2019
Amended description with annotations
Search/Exam
Jan 17, 2019
Amendments received before examination
Search/Exam
Jan 17, 2019
Letter accompanying subsequently filed items
Search/Exam
Jan 4, 2019
Nov 28, 2018
Notification of forthcoming publication
Search/Exam
Oct 17, 2018
Refund of fees
Search/Exam
Oct 5, 2018
Oct 5, 2018
European search opinion
Search/Exam
Oct 5, 2018
European search report
Search/Exam
Oct 5, 2018
Information on Search Strategy
Search/Exam
Sep 24, 2018
Search started
Search/Exam
Sep 13, 2018
Sep 5, 2018
Letter concerning the inventor
Search/Exam
Sep 4, 2018
Aug 31, 2018
Letter concerning the inventor
Search/Exam
Aug 29, 2018
Letter concerning the inventor
Search/Exam
Aug 24, 2018
Letter concerning the inventor
Search/Exam
Aug 14, 2018
Communication to designated inventor
Search/Exam
Aug 14, 2018
Communication to designated inventor
Search/Exam
Aug 14, 2018
Communication to designated inventor
Search/Exam
Aug 14, 2018
Communication to designated inventor
Search/Exam
Aug 14, 2018
Communication to designated inventor
Search/Exam
Aug 14, 2018
Communication to designated inventor
Search/Exam
Aug 14, 2018
Communication to designated inventor
Search/Exam
Jul 11, 2018
Letter concerning the priority
Search/Exam
Jul 11, 2018
Priority document
Search/Exam
Jun 29, 2018
Priority search results copy provided by EPO
Search/Exam
Jun 21, 2018
Abstract
Search/Exam
Jun 21, 2018
Jun 21, 2018
Claims
Search/Exam
Jun 21, 2018
Description
Search/Exam
Jun 21, 2018
Designation of inventor
Search/Exam
Jun 21, 2018
Drawings
Search/Exam
Jun 21, 2018
General authorisation
Search/Exam
Jun 21, 2018
Priority search results
Search/Exam
Jun 21, 2018
Request for grant of a European patent
Search/Exam