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The patent EP2454196 was granted to Rhodia Operations on Mar 21, 2018. The application was filed on Jul 2, 2010 under application number EP10726996A. 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 |
|---|---|---|---|
| NEO CHEMICALS & OXIDES EUROPE | Dec 21, 2018 | BIRD & BIRD | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | EP1444036 |
| INTERNATIONAL-SEARCH-REPORT | EP1621251 |
| INTERNATIONAL-SEARCH-REPORT | EP1920830 |
| OPPOSITION | EP1621251 |
| OPPOSITION | EP1803686 |
| OPPOSITION | EP1894620 |
| OPPOSITION | US2006178261 |
| OPPOSITION | US2006210462 |
| OPPOSITION | US2006263284 |
| OPPOSITION | US2007264486 |
| OPPOSITION | US2008187476 |
| OPPOSITION | US2012189517 |
| OPPOSITION | US5908800 |
| OPPOSITION | US6133194 |
| OPPOSITION | US6214306 |
| OPPOSITION | WO03037506 |
| OPPOSITION | WO2011006780 |
| OTHER | EP1444036 |
| OTHER | US2003180197 |
| OTHER | WO2004085039 |
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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Jul 8, 2024
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Aug 2, 2023
Aug 2, 2023
Jul 18, 2023
Advice of delivery
Appeal
Jul 17, 2023
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Jul 12, 2023
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Sep 22, 2022
Sep 16, 2022
(Electronic) Receipt
Appeal
Sep 16, 2022
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Reply to appeal
Appeal
Jul 25, 2022
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Apr 27, 2022
(Electronic) Receipt
Appeal
Apr 27, 2022
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Apr 27, 2022
Mar 1, 2022
Mar 1, 2022
Feb 23, 2022
(Electronic) Receipt
Appeal
Feb 23, 2022
Feb 23, 2022
Notice of appeal
Appeal
Dec 22, 2021
Dec 17, 2021
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Means of redress
OPPO
Dec 17, 2021
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Authorisation
OPPO
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Apr 3, 2018
Feb 22, 2018
Decision to grant a European patent
Search/Exam
Feb 14, 2018
Refund of fees
Search/Exam
Feb 6, 2018
Feb 6, 2018
Feb 6, 2018
Feb 6, 2018
Intention to grant (signatures)
Search/Exam
Feb 6, 2018
Text intended for grant (clean copy)
Search/Exam
Feb 6, 2018
Jan 30, 2018
(Electronic) Receipt
Search/Exam
Jan 30, 2018
Letter accompanying subsequently filed items
Search/Exam
Jan 30, 2018
Letter concerning fees and payments
Search/Exam
Jan 17, 2018
Jan 11, 2018
Dec 19, 2017
(Electronic) Receipt
Search/Exam
Dec 19, 2017
Amended claims with annotations
Search/Exam
Dec 19, 2017
Claims
Search/Exam
Dec 19, 2017
English translation of the claims
Search/Exam
Dec 19, 2017
German translation of the claims
Search/Exam
Dec 19, 2017
Letter accompanying subsequently filed items
Search/Exam
Dec 19, 2017
Nov 16, 2017
Nov 3, 2017
Non-scannable object
Search/Exam
Nov 3, 2017
Observations by third parties
Search/Exam
Aug 11, 2017
Aug 11, 2017
Aug 11, 2017
Intention to grant (signatures)
Search/Exam
Aug 11, 2017
Text intended for grant (clean copy)
Search/Exam
Aug 11, 2017
May 18, 2017
May 15, 2017
(Electronic) Receipt
Search/Exam
May 15, 2017
Amended claims with annotations
Search/Exam
May 15, 2017
Claims
Search/Exam
May 15, 2017
Letter accompanying subsequently filed items
Search/Exam
May 15, 2017
Jan 4, 2017
Jan 4, 2017
Jan 4, 2017
Intention to grant (signatures)
Search/Exam
Jan 4, 2017
Text intended for grant (clean copy)
Search/Exam
Jan 4, 2017
Mar 26, 2015
Mar 5, 2015
(Electronic) Receipt
Search/Exam
Mar 5, 2015
Amended claims with annotations
Search/Exam
Mar 5, 2015
Claims
Search/Exam
Mar 5, 2015
Letter accompanying subsequently filed items
Search/Exam
Mar 5, 2015
Feb 9, 2015
Letter accompanying subsequently filed items
Search/Exam
Feb 9, 2015
Nov 17, 2014
Annex to the communication
Search/Exam
Nov 17, 2014
Communication from the Examining Division
Search/Exam
Mar 13, 2013
Mar 1, 2013
Mar 1, 2013
Mar 1, 2013
Non-scannable object
Search/Exam
Mar 1, 2013
Non-scannable object
Search/Exam
Mar 1, 2013
Observations by third parties
Search/Exam
Mar 1, 2013
Mar 1, 2013
Mar 1, 2013
Aug 3, 2012
Amendments received before examination
Search/Exam
Aug 3, 2012
Claims
Search/Exam
Aug 1, 2012
Amendments received before examination
Search/Exam
Aug 1, 2012
Claims
Search/Exam
Aug 1, 2012
Payment of fees and costs
Search/Exam
Apr 25, 2012
Feb 24, 2012
Feb 8, 2012
(Electronic) Receipt
Search/Exam
Feb 8, 2012
Request for entry into the European phase
Search/Exam
Feb 1, 2012
Nov 25, 2011
Information on entry into European phase
Search/Exam
Feb 21, 2011
CDS Clean up - amended applicant details
Search/Exam
Feb 11, 2011
Jan 20, 2011
Copy of the international search report
Search/Exam
Jan 20, 2011
Copy of the international search report
Search/Exam
Jan 20, 2011
Published international application - A1
Search/Exam
Sep 3, 2010
Sep 3, 2010
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Jul 16, 2010
Jul 2, 2010
(Electronic) Receipt
PCTRO
Jul 2, 2010
Abstract
PCTRO
Jul 2, 2010
Claims
PCTRO
Jul 2, 2010
Description
PCTRO
Jul 2, 2010
Drawings
PCTRO
Jul 2, 2010
Jul 2, 2010