Patent No. EP2809717 (titled "Multimodal Polyethylene Polymers And Process Preparing Said Polymer") was filed by Norner AS on Jan 31, 2013. The application was issued on Jul 13, 2016.

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 |
|---|---|---|
| BOREALIS | Apr 13, 2017 | KADOR & PARTNER PARTG MBB |
| TOTALENERGIES ONETECH BELGIUM | Apr 13, 2017 | DE CLERCQ & PARTNERS |
| BASELL POLYOLEFINE | Apr 12, 2017 | LYONDELLBASELL |
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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