Patent No. EP2375880 (titled "Arrangement Of A Seed Metering Device On An Agricultural Machine") was filed by Vderstad Holding on Oct 20, 2009. The application was issued on Sep 14, 2022.

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 |
|---|---|---|
| HORSCH MASCHINEN | Nov 14, 2018 | V BEZOLD & PARTNER PATENTANWALTE PARTG MBB |
| KVERNELAND | Nov 14, 2018 | BITTNER |
| LEMKEN | Nov 14, 2018 | ENGELMANN |
| AMAZONEN WERKE H DREYER | Nov 13, 2018 | GRUNECKER PATENT |
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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