Patent No. EP3058050 (titled "Process For Producing Hydrocarbons From Crude Tall Oil And Tall Oil Pitch") was filed by UPM Kymmene on Oct 16, 2014. The application was issued on Dec 5, 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 |
|---|---|---|
| NESTE OYJ | Sep 4, 2019 | ZACCO DENMARK |
| SCA FOREST PRODUCTS | Sep 4, 2019 | WEICKMANN |
| ST REFINERY | Sep 4, 2019 | WEICKMANN |
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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