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The patent EP2598557 was granted to DOW on Mar 20, 2019. The application was filed on Jul 28, 2010 under application number EP10740476A. 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.
| Company | Opposition Date | Representative | Opposition Status |
|---|---|---|---|
| TYLOSE & COKG | Dec 18, 2019 | PLATE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP0370447 |
| DESCRIPTION | EP0954536 |
| DESCRIPTION | EP1127895 |
| DESCRIPTION | EP1127910 |
| DESCRIPTION | US4979681 |
| DESCRIPTION | US6320043 |
| DESCRIPTION | US6509461 |
| DESCRIPTION | WO9600748 |
| INTERNATIONAL-SEARCH-REPORT | DE952264 |
| INTERNATIONAL-SEARCH-REPORT | EP0824107 |
| INTERNATIONAL-SEARCH-REPORT | EP0954536 |
| INTERNATIONAL-SEARCH-REPORT | EP1127895 |
| INTERNATIONAL-SEARCH-REPORT | EP1792930 |
| INTERNATIONAL-SEARCH-REPORT | GB2262527 |
| INTERNATIONAL-SEARCH-REPORT | US2001025101 |
| INTERNATIONAL-SEARCH-REPORT | US2331864 |
| INTERNATIONAL-SEARCH-REPORT | WO9600748 |
| OPPOSITION | EP0954536 |
| OPPOSITION | EP1127895 |
| OPPOSITION | GB2262527 |
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
Feb 12, 2019
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Feb 12, 2019
Intention to grant (signatures)
Search/Exam
Feb 12, 2019
Text intended for grant (clean copy)
Search/Exam
Feb 12, 2019
Jan 25, 2019
(Electronic) Receipt
Search/Exam
Jan 25, 2019
Amended claims with annotations
Search/Exam
Jan 25, 2019
Claims
Search/Exam
Jan 25, 2019
French translation of claims
Search/Exam
Jan 25, 2019
German translation of the claims
Search/Exam
Jan 25, 2019
Letter accompanying subsequently filed items
Search/Exam
Jan 25, 2019
Sep 18, 2018
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Intention to grant (signatures)
Search/Exam
Sep 18, 2018
Text intended for grant (clean copy)
Search/Exam
Sep 18, 2018
Jul 9, 2018
(Electronic) Receipt
Search/Exam
Jul 9, 2018
Amended description with annotations
Search/Exam
Jul 9, 2018
Description
Search/Exam
Jul 9, 2018
Letter accompanying subsequently filed items
Search/Exam
Jul 9, 2018
Mar 28, 2018
Annex to the communication
Search/Exam
Mar 28, 2018
Communication from the Examining Division
Search/Exam
Dec 28, 2017
(Electronic) Receipt
Search/Exam
Dec 28, 2017
Amended claims with annotations
Search/Exam
Dec 28, 2017
Claims
Search/Exam
Dec 28, 2017
Letter accompanying subsequently filed items
Search/Exam
Dec 28, 2017
Sep 6, 2017
Annex to the communication
Search/Exam
Sep 6, 2017
Communication from the Examining Division
Search/Exam
Aug 30, 2017
Examination started
Search/Exam
Dec 16, 2013
Submission concerning representation
Search/Exam
Sep 14, 2013
Sep 14, 2013
Amendments received before examination
Search/Exam
Sep 14, 2013
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Apr 26, 2013
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Mar 28, 2013
Mar 5, 2013
Communication to designated inventor
Search/Exam
Mar 5, 2013
Communication to designated inventor
Search/Exam
Mar 5, 2013
Communication to designated inventor
Search/Exam
Feb 13, 2013
Apr 3, 2012
Information regarding early processing
Search/Exam
Mar 21, 2012
Request for entry into the European phase
Search/Exam
Feb 2, 2012
Copy of the international search report
Search/Exam
Feb 2, 2012
Published international application - A1
Search/Exam
Apr 18, 2011
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Aug 5, 2010
Abstract
PCTISA
Aug 5, 2010
Claims
PCTISA
Aug 5, 2010
Description
PCTISA