Patent No. EP3184449 (titled "Articles With Improved Optical Properties") was filed by Borealis on Dec 21, 2015. The application was issued on Nov 6, 2019.

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 |
|---|---|---|
| SABIC SABIC PETROCHEMICALS | Aug 6, 2020 | SABIC GROUP |
| SABIC SABIC PETROCHEMICALS | Aug 6, 2020 | SABIC INTELLECTUAL GROUP |
| INEOS EUROPE | Aug 5, 2020 | SMITH |
| TOTAL RESEARCH & TECHNOLOGY FELUY | Aug 3, 2020 | GARCIA MARTIN |
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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