Patent No. EP3377585 (titled "Particulate Carbon Material That Can Be Produced From Renewable Raw Materials And Method For The Production Of Said Carbon Material") was filed by Suncoal Industries on Nov 18, 2016. The application was issued on Apr 26, 2023.

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 |
|---|---|---|
| METSA FIBRE | Jan 26, 2024 | ESPATENT |
| NOKIAN RENKAAT OYJ | Jan 26, 2024 | BERGGREN |
| STORA ENSO OYJ | Jan 24, 2024 | STEINRUD |
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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