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The patent EP2328968 was granted to Basell Polyolefine on May 3, 2017. The application was filed on Aug 27, 2009 under application number EP09778148A. 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 |
|---|---|---|---|
| BOREALIS | Feb 2, 2018 | DEHNS | ADMISSIBLE |
| INEOS EUROPE | Feb 2, 2018 | SMITH | ADMISSIBLE |
| THE DOW CHEMICAL | Feb 2, 2018 | BOULT WADE TENNANT | ADMISSIBLE |
| TOTALENERGIES ONETECH BELGIUM | Feb 1, 2018 | - | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | EP0492656 |
| INTERNATIONAL-SEARCH-REPORT | EP1655338 |
| INTERNATIONAL-SEARCH-REPORT | EP2017302 |
| INTERNATIONAL-SEARCH-REPORT | WO2005103095 |
| OPPOSITION | EP1655338 |
| OPPOSITION | EP1772486 |
| OPPOSITION | EP1790580 |
| OPPOSITION | EP2017302 |
| OPPOSITION | EP2130860 |
| OPPOSITION | JP2000109521 |
| OPPOSITION | US5015511 |
| OPPOSITION | WO0071615 |
| OPPOSITION | WO2005103095 |
| OPPOSITION | WO2005103096 |
| OPPOSITION | WO2005103100 |
| OPPOSITION | WO2006048259 |
| OPPOSITION | WO2006114210 |
| OPPOSITION | WO2007003530 |
| OPPOSITION | WO2007042216 |
| OPPOSITION | WO2007060115 |
| OPPOSITION | WO2007130515 |
| OPPOSITION | WO2008136849 |
| OPPOSITION | WO2010022941 |
| OTHER | WO2005103096 |
| OTHER | WO2007003530 |
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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Appeal
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Mar 23, 2017
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Oct 26, 2015
Annex to the communication
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Oct 26, 2015
Communication from the Examining Division
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Examination started
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Mar 4, 2010
Published international application - A1
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Oct 5, 2009
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Aug 29, 2009
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Aug 29, 2009
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Aug 29, 2009
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Aug 27, 2009