Patent No. EP2591653 (titled "Haymaking Machine") was filed by Alois Pttinger Maschinenfabrik Gesmbh on Nov 7, 2012. The application was issued on Nov 7, 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 |
|---|---|---|
| SIP STROJNA INDUSTRIJA DD | Oct 7, 2015 | WITTHOFF JAEKEL STEINECKE PATENTANWALTE PARTG MBB |
| OCTROOIBUREAU VAN DER LELY | Oct 6, 2015 | AGCO DEPARTMENT |
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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