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The patent EP2448551 was granted to Cognis Management on May 29, 2019. The application was filed on Jun 19, 2010 under application number EP10729785A. 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 |
|---|---|---|---|
| KADOR & PARTNER PARTG MBB | Feb 28, 2020 | KADOR & PARTNER PART MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE19712033 |
| DESCRIPTION | EP0694521 |
| DESCRIPTION | EP0766661 |
| EXAMINATION | US2005079191 |
| INTERNATIONAL-SEARCH-REPORT | EP0942051 |
| INTERNATIONAL-SEARCH-REPORT | WO2006097235 |
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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Means of redress
OPPO
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Jun 11, 2019
May 3, 2019
Decision to grant a European patent
Search/Exam
Apr 10, 2019
(Electronic) Receipt
Search/Exam
Apr 10, 2019
Filing of the translations of the claims
Search/Exam
Apr 10, 2019
French translation of claims
Search/Exam
Apr 10, 2019
German translation of the claims
Search/Exam
Jan 22, 2019
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Intention to grant (signatures)
Search/Exam
Jan 22, 2019
Text intended for grant (clean copy)
Search/Exam
Jan 22, 2019
Aug 23, 2018
(Electronic) Receipt
Search/Exam
Aug 23, 2018
Amended description with annotations
Search/Exam
Aug 23, 2018
Description
Search/Exam
Aug 23, 2018
Letter accompanying subsequently filed items
Search/Exam
Aug 23, 2018
May 25, 2018
Annex to the communication
Search/Exam
May 25, 2018
Communication from the Examining Division
Search/Exam
Jan 22, 2018
(Electronic) Receipt
Search/Exam
Jan 22, 2018
Amended claims with annotations
Search/Exam
Jan 22, 2018
Claims
Search/Exam
Jan 22, 2018
Letter accompanying subsequently filed items
Search/Exam
Jan 22, 2018
Dec 4, 2017
Dec 4, 2017
Nov 30, 2017
Nov 20, 2017
(Electronic) Receipt
Search/Exam
Nov 20, 2017
Letter accompanying subsequently filed items
Search/Exam
Jul 26, 2017
Annex to the communication
Search/Exam
Jul 26, 2017
Communication from the Examining Division
Search/Exam
Apr 26, 2017
Apr 13, 2016
Jul 18, 2012
(Electronic) Receipt
Search/Exam
Jul 18, 2012
Jul 18, 2012
Amended claims with annotations
Search/Exam
Jul 18, 2012
Amendments received before examination
Search/Exam
Jul 18, 2012
Letter accompanying subsequently filed items
Search/Exam
Apr 12, 2012
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Nov 22, 2011
Oct 7, 2011
(Electronic) Receipt
Search/Exam
Oct 7, 2011
Request for entry into the European phase
Search/Exam
Apr 6, 2011
Apr 6, 2011
Jan 6, 2011
Copy of the international search report
Search/Exam
Aug 3, 2010
Aug 3, 2010
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Jun 19, 2010
Abstract
PCTRO
Jun 19, 2010
Claims
PCTRO
Jun 19, 2010
Description
PCTRO