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The patent EP2393884 was granted to Engineered Polymer Solutions on Apr 11, 2018. The application was filed on Feb 9, 2010 under application number EP10704677A. 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 |
|---|---|---|---|
| AKZO NOBEL | Jan 10, 2019 | AKZO NOBEL DEPARTMENT | ADMISSIBLE |
| SUN CHEMICAL COLORS & EFFECTS | Jan 10, 2019 | ALTMANN | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US20080141006 |
| DESCRIPTION | US4427835 |
| DESCRIPTION | US4468498 |
| DESCRIPTION | US4469825 |
| DESCRIPTION | US4594363 |
| DESCRIPTION | US4880842 |
| DESCRIPTION | US4920160 |
| DESCRIPTION | US4985064 |
| DESCRIPTION | US5036109 |
| DESCRIPTION | US5041464 |
| DESCRIPTION | US5157084 |
| DESCRIPTION | US5409776 |
| DESCRIPTION | US5510422 |
| DESCRIPTION | US6454848 |
| DESCRIPTION | US6458848 |
| DESCRIPTION | US6616744 |
| DESCRIPTION | US6989056 |
| DESCRIPTION | US7157112 |
| INTERNATIONAL-SEARCH-REPORT | US2005070640 |
| INTERNATIONAL-SEARCH-REPORT | US2007095421 |
| INTERNATIONAL-SEARCH-REPORT | WO9115547 |
| OPPOSITION | US2008300714 |
| OPPOSITION | US5340394 |
| OPPOSITION | WO2006040033 |
| OPPOSITION | WO2008151152 |
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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