Patent No. EP2445329 (titled "Soil Treating Tool") was filed by Betek on May 28, 2010. The application was issued on Aug 19, 2015.

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 |
|---|---|---|
| AMAZONEN WERKE H DREYER | May 19, 2016 | GRUNECKER PATENT |
| LEMKEN | May 19, 2016 | HOFFMANN EITLE |
| HORSCH MASCHINEN | May 13, 2016 | BENNINGER |
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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