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The patent EP2588528 was granted to Avient Colorants Italy on Jan 3, 2018. The application was filed on Jun 16, 2011 under application number EP11725648A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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 |
|---|---|---|---|
| APG POLYTECH | Sep 27, 2018 | HOFFMANN EITLE | ADMISSIBLE |
| COLORMATRIX EUROPE LTDCOLORMATRIX EUROPE BVPOLYO NE CORPPOLYONE LUX SARLPOLYONE | Sep 24, 2018 | APPLEYARD LEES | WITHDRAWN |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP0527903 |
| DESCRIPTION | US5021515 |
| DESCRIPTION | US5211875 |
| DESCRIPTION | US5302430 |
| DESCRIPTION | US5310497 |
| DESCRIPTION | US5346644 |
| DESCRIPTION | US5350622 |
| DESCRIPTION | US5639815 |
| DESCRIPTION | US5811027 |
| DESCRIPTION | US5955527 |
| DESCRIPTION | US6500895 |
| DESCRIPTION | WO0233024 |
| INTERNATIONAL-SEARCH-REPORT | EP0507207 |
| INTERNATIONAL-SEARCH-REPORT | EP1655238 |
| INTERNATIONAL-SEARCH-REPORT | US5700554 |
| INTERNATIONAL-SEARCH-REPORT | WO0110945 |
| INTERNATIONAL-SEARCH-REPORT | WO0110947 |
| INTERNATIONAL-SEARCH-REPORT | WO2005023530 |
| INTERNATIONAL-SEARCH-REPORT | WO2006063032 |
| INTERNATIONAL-SEARCH-REPORT | WO2009029479 |
| INTERNATIONAL-SEARCH-REPORT | WO9915433 |
| OPPOSITION | EP1769845 |
| OPPOSITION | EP2128197 |
| OPPOSITION | GB2394225 |
| OPPOSITION | JP2000319408 |
| OPPOSITION | JP2003128151 |
| OPPOSITION | US2004234797 |
| OPPOSITION | US5021515 |
| OPPOSITION | WO2004069909 |
| OPPOSITION | WO2005023925 |
| OPPOSITION | WO2005095516 |
| OPPOSITION | WO2006023583 |
| OPPOSITION | WO2006063032 |
| OPPOSITION | WO2007089517 |
| OPPOSITION | WO2011043969 |
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.
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Decision to grant a European patent
Search/Exam
Nov 24, 2017
(Electronic) Receipt
Search/Exam
Nov 24, 2017
Filing of the translations of the claims
Search/Exam
Nov 24, 2017
French translation of claims
Search/Exam
Nov 24, 2017
German translation of the claims
Search/Exam
Nov 24, 2017
Letter accompanying subsequently filed items
Search/Exam
Aug 4, 2017
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Intention to grant (signatures)
Search/Exam
Aug 4, 2017
Text intended for grant (clean copy)
Search/Exam
Aug 4, 2017
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Description
Search/Exam
Dec 7, 2016
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Annex to the communication
Search/Exam
Oct 14, 2016
Communication from the Examining Division
Search/Exam
Jun 17, 2016
Amended claims with annotations
Search/Exam
Jun 17, 2016
Claims
Search/Exam
Jun 17, 2016
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Annex to the communication
Search/Exam
May 23, 2016
Communication from the Examining Division
Search/Exam
Sep 11, 2013
Submission concerning representation
Search/Exam
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Amended claims with annotations
Search/Exam
Jun 15, 2013
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Search/Exam
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Communication to designated inventor
Search/Exam
Feb 2, 2013
Priority search results copy provided by EPO
Search/Exam
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Information on entry into European phase
Search/Exam
Nov 6, 2012
Request for entry into the European phase
Search/Exam
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Copy of the international search report
Search/Exam
Jan 5, 2012
Published international application - A1
Search/Exam
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Abstract
PCTRO
Jun 16, 2011
Claims
PCTRO
Jun 16, 2011
Description
PCTRO
Jun 16, 2011
Drawings
PCTRO