Patent No. EP3680204 (titled "A Remote Monitoring System And A Method For Remotely Monitoring An Elevator System") was filed by Kone on Jan 11, 2019. The application was issued on Nov 16, 2022.

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 |
|---|---|---|
| TK ELEVATOR INNOVATION AND OPERATIONS | Aug 14, 2023 | PAUSTIAN & PARTNER PATENTANWALTE MBB |
| OTIS ELEVATOR | Aug 10, 2023 | WINTER |
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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