Patent No. EP2400859 (titled "Protein Preparations From Sunflower Seeds And Production Thereof") was filed by Fraunhofer Gesellschaft ZUR Frderung DER Angewandten Forschung EV on Feb 26, 2010. The application was issued on Jul 1, 2020.

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 |
|---|---|---|
| KRAMERBRAU SAATEN UND OLE ALL ORGANIC TREASURES HOPFENVEREDLUNG ST JOHANN | Jul 6, 2018 | LIEBL |
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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