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The patent EP2431442 was granted to Arkema France on May 16, 2018. The application was filed on Aug 10, 2011 under application number EP11177053A. 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 |
|---|---|---|---|
| HONEYWELL | Feb 15, 2019 | CROOKS | WITHDRAWN |
| MEXICHEM FLUOR DE CV | Feb 14, 2019 | POTTER CLARKSON | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JPH04110388 |
| DESCRIPTION | WO2004037913 |
| DESCRIPTION | WO2005108522 |
| OPPOSITION | EP2264117 |
| OPPOSITION | JPH04110388 |
| OPPOSITION | US2004089839 |
| OPPOSITION | US2006243944 |
| OPPOSITION | US2008111099 |
| OPPOSITION | US4944890 |
| OPPOSITION | US5518643 |
| OPPOSITION | US6013609 |
| OPPOSITION | WO2005108522 |
| SEARCH | US2006243944 |
| SEARCH | US2008111099 |
| SEARCH | WO2005108522 |
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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Appeal
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Appeal
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Refund of fees
Appeal
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Appeal
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Notice of appeal
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(Electronic) Receipt
Search/Exam
May 4, 2018
Letter accompanying subsequently filed items
Search/Exam
May 4, 2018
Apr 19, 2018
Decision to grant a European patent
Search/Exam
Mar 30, 2018
(Electronic) Receipt
Search/Exam
Mar 30, 2018
English translation of the claims
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Mar 30, 2018
Filing of the translations of the claims
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Mar 30, 2018
German translation of the claims
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Mar 30, 2018
Letter accompanying subsequently filed items
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Feb 20, 2018
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Intention to grant (signatures)
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Feb 20, 2018
Text intended for grant (clean copy)
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Feb 20, 2018
Nov 22, 2017
Submission concerning representation
Search/Exam
Jun 19, 2017
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(Electronic) Receipt
Search/Exam
Jun 21, 2016
Amended description with annotations
Search/Exam
Jun 21, 2016
Description
Search/Exam
Jun 21, 2016
Letter accompanying subsequently filed items
Search/Exam
Jun 21, 2016
Mar 24, 2016
Annex to the communication
Search/Exam
Mar 24, 2016
Communication from the Examining Division
Search/Exam
Mar 18, 2016
Examination started
Search/Exam
Sep 18, 2014
(Electronic) Receipt
Search/Exam
Sep 18, 2014
Abstract
Search/Exam
Sep 18, 2014
Sep 18, 2014
Sep 18, 2014
Amendments received before examination
Search/Exam
Sep 18, 2014
Letter accompanying subsequently filed items
Search/Exam
Mar 31, 2014
Mar 5, 2014
Refund of fees
Search/Exam
Feb 20, 2014
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European search opinion
Search/Exam
Feb 20, 2014
European search report
Search/Exam
Feb 12, 2014
Search started
Search/Exam
Mar 8, 2012
Letter concerning the priority
Search/Exam
Mar 8, 2012
Priority document
Search/Exam
Feb 28, 2012
Invitation to file priority document
Search/Exam
Feb 22, 2012
Notification of forthcoming publication
Search/Exam
Aug 17, 2011
Priority search results copy provided by EPO
Search/Exam
Aug 10, 2011
Abstract
Search/Exam
Aug 10, 2011
Aug 10, 2011
Claims
Search/Exam
Aug 10, 2011
Description
Search/Exam
Aug 10, 2011
Designation of inventor
Search/Exam
Aug 10, 2011
Designation of inventor
Search/Exam
Aug 10, 2011
General authorisation
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Aug 10, 2011
Request for grant of a European patent
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