Patent No. EP2890539 (titled "A Method And A System For Manufacturing A Composite Product And A Composite Product") was filed by UPM Kymmene on Aug 28, 2012. The application was issued on Oct 31, 2018.

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 |
|---|---|---|
| KRANZLE | Jul 31, 2019 | PFENNING |
| STORA ENSO OYJ | Jul 17, 2019 | 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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