Patent No. EP3105159 (titled "Method For Operating An Elevator Installation, Elevator Control Device And Mobile Radio For Carrying Out The Method, And System Having Such An Elevator Control Device And A Mobile Radio") was filed by Inventio on Feb 11, 2015. The application was issued on Jan 15, 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 |
|---|---|---|
| OTIS ELEVATOR | Feb 8, 2019 | DEHNS |
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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