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The patent EP2287226 was granted to Bayer Materialscience on Feb 27, 2019. The application was filed on Jul 19, 2007 under application number EP10184387A. 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 |
|---|---|---|---|
| ECONIC | Nov 27, 2019 | APPLEYARD LEES | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US3404109 |
| DESCRIPTION | US3538043 |
| DESCRIPTION | US4500704 |
| DESCRIPTION | US4826953 |
| DESCRIPTION | US5145883 |
| DESCRIPTION | US5482908 |
| DESCRIPTION | US5777177 |
| DESCRIPTION | US5783513 |
| DESCRIPTION | US6713599 |
| DESCRIPTION | US6762278 |
| OPPOSITION | US2001046940 |
| OPPOSITION | US4826953 |
| OPPOSITION | US5482908 |
| OPPOSITION | US5712216 |
| OPPOSITION | US5777177 |
| OPPOSITION | US5783513 |
| OPPOSITION | US6762278 |
| OPPOSITION | WO2004087788 |
| OPPOSITION | WO2006103213 |
| OTHER | US5482908 |
| OTHER | US5777177 |
| OTHER | WO9916775 |
| SEARCH | US4500704 |
| SEARCH | US4826953 |
| SEARCH | US6713599 |
| SEARCH | WO03029240 |
| SEARCH | WO2006103214 |
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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Decision to grant a European patent
Search/Exam
Jan 10, 2019
(Electronic) Receipt
Search/Exam
Jan 10, 2019
Filing of the translations of the claims
Search/Exam
Jan 10, 2019
French translation of claims
Search/Exam
Jan 10, 2019
German translation of the claims
Search/Exam
Oct 17, 2018
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Intention to grant (signatures)
Search/Exam
Oct 17, 2018
Text intended for grant (clean copy)
Search/Exam
Oct 17, 2018
Sep 7, 2018
(Electronic) Receipt
Search/Exam
Sep 7, 2018
Amended claims with annotations
Search/Exam
Sep 7, 2018
Amended claims with annotations
Search/Exam
Sep 7, 2018
Claims
Search/Exam
Sep 7, 2018
Claims
Search/Exam
Sep 7, 2018
Description
Search/Exam
Sep 7, 2018
Description
Search/Exam
Sep 7, 2018
Letter accompanying subsequently filed items
Search/Exam
Sep 7, 2018
Jul 9, 2018
Jun 28, 2018
(Electronic) Receipt
Search/Exam
Jun 28, 2018
Mar 1, 2018
Annex to the communication
Search/Exam
Mar 1, 2018
Communication from the Examining Division
Search/Exam
Jul 26, 2017
Decision to allow further processing
Search/Exam
Jul 14, 2017
(Electronic) Receipt
Search/Exam
Jul 14, 2017
Letter accompanying subsequently filed items
Search/Exam
Jul 14, 2017
Request for further processing
Search/Exam
Jun 2, 2017
Mar 7, 2017
Feb 28, 2017
(Electronic) Receipt
Search/Exam
Feb 28, 2017
Oct 26, 2016
Annex to the communication
Search/Exam
Oct 26, 2016
Communication from the Examining Division
Search/Exam
Oct 10, 2016
Submission concerning representation
Search/Exam
Aug 1, 2016
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Aug 27, 2015
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Observations by third parties
Search/Exam
Apr 9, 2013
Aug 23, 2011
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Amendments received before examination
Search/Exam
Aug 23, 2011
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Amendments received before examination
Search/Exam
Mar 17, 2011
Mar 9, 2011
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Feb 28, 2011
Feb 23, 2011
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Letter which had not been notified
Search/Exam
Jan 26, 2011
Notification of forthcoming publication
Search/Exam
Jan 21, 2011
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European search opinion
Search/Exam
Jan 21, 2011
European search report
Search/Exam
Jan 13, 2011
Letter concerning the inventor
Search/Exam
Dec 2, 2010
Deficiency in designation of inventor
Search/Exam
Nov 2, 2010
Sep 30, 2010
Abstract
Search/Exam
Sep 30, 2010
Sep 30, 2010
Claims
Search/Exam
Sep 30, 2010
Description
Search/Exam
Sep 30, 2010
Feb 25, 2008