Patent No. EP3135569 (titled "Method For Operating An Auxiliary Drive For A Trailer, And System For Driving At Least One Wheel Of Such A Trailer") was filed by Reich on Aug 12, 2016. The application was issued on Apr 10, 2024.

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 |
|---|---|---|
| TRUMA GERATETECHNIK | Aug 4, 2020 | PRINZ & PARTNER 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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