Patent No. EP3620422 (titled "Driverless Transporter") was filed by Liebherr Verzahntechnik on Jul 8, 2019. The application was issued on May 21, 2025.

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 |
|---|---|---|
| DMG MORI PFRONTEN | Feb 19, 2026 | MERH MATIAS ERNY REICHL HOFFMANN 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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