Patent No. EP2538009 (titled "Compact Carriage For A Wing And Method For Longitudinal Movement Of The Wing In A Parallel Offset And Secured Position") was filed by Hautau on Oct 15, 2009. The application was issued on Jun 28, 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 |
|---|---|---|
| ROTO FRANK AG | Oct 5, 2017 | KOHLER SCHMID MOBUS PATENTANWALTE |
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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