Patent No. EP2789402 (titled "Oscillation Exciter") was filed by ABI Anlagentechnik Baumaschinen Industriebedarf Maschinenfabrik UND Vertriebsgesellschaft on Apr 10, 2013. The application was issued on May 17, 2017.

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 |
|---|---|---|
| BAUER MASCHINEN | Feb 13, 2018 | WUNDERLICH & HEIM PATENTANWALTE PARTG MBB |
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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