The patent EP2641651 was granted to Basf on Nov 15, 2017. The application was originally filed on Sep 8, 2005 under application number EP13173273A. The patent is currently recorded with a legal status of "Opposition Rejected".

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.
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | FR2849670 |
| OPPOSITION | US2003124037 |
| OPPOSITION | US2006201140 |
| OPPOSITION | US6228799 |
| OPPOSITION | US6423293 |
| OPPOSITION | US6576207 |
| SEARCH | DE10048511 |
| SEARCH | EP0870543 |
| SEARCH | EP1355048 |
| SEARCH | FR2849670 |
| SEARCH | WO2004070178 |
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Date
Description
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Mar 30, 2020
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Means of redress
OPPO
Dec 11, 2019
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Claims
OPPO
Feb 12, 2019
Claims
OPPO
Feb 12, 2019
Claims
OPPO
Feb 12, 2019
Feb 12, 2019
Oct 2, 2018
Oct 2, 2018
Aug 20, 2018
Aug 15, 2018
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Nov 22, 2017
Oct 19, 2017
Decision to grant a European patent
Search/Exam
Oct 11, 2017
Oct 2, 2017
(Electronic) Receipt
Search/Exam
Oct 2, 2017
Filing of the translations of the claims
Search/Exam
Oct 2, 2017
French translation of claims
Search/Exam
Oct 2, 2017
German translation of the claims
Search/Exam
Oct 2, 2017
Letter accompanying subsequently filed items
Search/Exam
May 24, 2017
May 24, 2017
May 24, 2017
Intention to grant (signatures)
Search/Exam
May 24, 2017
Text intended for grant (clean copy)
Search/Exam
May 24, 2017
May 15, 2017
May 2, 2017
(Electronic) Receipt
Search/Exam
May 2, 2017
Amended description with annotations
Search/Exam
May 2, 2017
Description
Search/Exam
May 2, 2017
Letter accompanying subsequently filed items
Search/Exam
May 2, 2017
Dec 23, 2016
Dec 23, 2016
Dec 23, 2016
Intention to grant (signatures)
Search/Exam
Dec 23, 2016
Text intended for grant (clean copy)
Search/Exam
Dec 23, 2016
Dec 8, 2016
Examination started
Search/Exam
Dec 7, 2016
CDS Clean up - amended applicant details
Search/Exam
Sep 12, 2016
Aug 4, 2016
Jul 1, 2016
Jun 14, 2016
Annexes in respect of a client data request
Search/Exam
Jun 14, 2016
Annexes in respect of a client data request
Search/Exam
Jun 14, 2016
Payment of fees and costs
Search/Exam
Jun 14, 2016
Payment of fees and costs
Search/Exam
Jun 14, 2016
Jun 2, 2016
Jun 2, 2016
May 20, 2016
(Electronic) Receipt
Search/Exam
May 20, 2016
Letter accompanying subsequently filed items
Search/Exam
May 20, 2016
Apr 29, 2016
(Electronic) Receipt
Search/Exam
Apr 29, 2016
Letter accompanying subsequently filed items
Search/Exam
Apr 29, 2016
Sep 25, 2014
(Electronic) Receipt
Search/Exam
Sep 25, 2014
Sep 25, 2014
Sep 25, 2014
Amended description with annotations
Search/Exam
Sep 25, 2014
Amendments received before examination
Search/Exam
Sep 25, 2014
Letter accompanying subsequently filed items
Search/Exam
Mar 31, 2014
Feb 26, 2014
Refund of fees
Search/Exam
Feb 20, 2014
Feb 20, 2014
European search opinion
Search/Exam
Feb 20, 2014
European search report
Search/Exam
Oct 11, 2013
(Electronic) Receipt
Search/Exam
Oct 11, 2013
Letter accompanying subsequently filed items
Search/Exam
Oct 11, 2013
Oct 2, 2013
(Electronic) Receipt
Search/Exam
Oct 2, 2013
Letter accompanying subsequently filed items
Search/Exam
Oct 2, 2013
Letter concerning the inventor
Search/Exam
Sep 17, 2013
Sep 9, 2013
Sep 5, 2013
Sep 2, 2013
Letter which had not been notified
Search/Exam
Aug 29, 2013
Letter which had not been notified
Search/Exam
Aug 28, 2013
Notification of forthcoming publication
Search/Exam
Aug 14, 2013
Communication to designated inventor
Search/Exam
Aug 14, 2013
Communication to designated inventor
Search/Exam
Aug 14, 2013
Communication to designated inventor
Search/Exam
Aug 14, 2013
Communication to designated inventor
Search/Exam
Aug 14, 2013
Communication to designated inventor
Search/Exam
Aug 14, 2013
Communication to designated inventor
Search/Exam
Aug 5, 2013
Jul 30, 2013
Search started
Search/Exam
Jun 26, 2013
Jun 21, 2013
Abstract
Search/Exam
Jun 21, 2013
Jun 21, 2013
Claims
Search/Exam
Jun 21, 2013
Description
Search/Exam
Jun 21, 2013
Designation of inventor
Search/Exam
Jun 21, 2013
Designation of inventor
Search/Exam
Jun 21, 2013
Designation of inventor
Search/Exam
Jun 21, 2013
Designation of inventor
Search/Exam
Jun 21, 2013
Designation of inventor
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Jun 21, 2013
Designation of inventor
Search/Exam
Jun 21, 2013
Drawings
Search/Exam
Jun 21, 2013
Priority search results
Search/Exam
Jun 21, 2013
Request for grant of a European patent
Search/Exam
Jun 6, 2013
Submission concerning representation
Search/Exam
Sep 12, 2007
Jun 28, 2007