Patent No. EP2358942 (titled "Coated Recyclable Paper Or Paperboard And Methods For Their Production") was filed by Premium Board Finland on Nov 5, 2009. The application was issued on May 18, 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 |
|---|---|---|
| METSÄ BOARD OYJ | Feb 20, 2017 | SEPPO LAINE |
| STORA ENSO OYJ | Feb 20, 2017 | FORSTMEYER |
| WALKI PLASTIROLL | Feb 17, 2017 | KOLSTER |
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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