Patent No. EP3865551 (titled "Binder Composition") was filed by UPM Kymmene on Feb 9, 2021. The application was issued on Jan 25, 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 |
|---|---|---|
| SAINT GOBAIN | Oct 25, 2023 | SAINT GOBAIN RECHERCHE |
| STORA ENSO OYJ | Oct 23, 2023 | 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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