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The patent EP2647543 was granted to SST Signal UNS System Technik on Aug 12, 2020. The application was originally filed on Apr 2, 2013 under application number EP13001672A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".
System for monitoring rail vehicle wheelset temperature sensors, comprising a load sensor to detect mechanical loads on the sensor, an internal state sensor to monitor sensor health, and an evaluation unit to determine the sensor's load condition based on both sensor inputs. The system enables load-dependent maintenance of wheelset temperature sensors by continuously monitoring their load state and internal condition.

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 | Opposition Status |
|---|---|---|---|
| IBERICA TECHNOLOGIA EN SISTEMAS DE SEGURIDAD FERROVIARIOS SL | Nov 30, 2017 | KBN | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE102007044796 |
| DESCRIPTION | DE102009024506 |
| DESCRIPTION | DE10305470 |
| DESCRIPTION | DE4217681 |
| DESCRIPTION | EP1772342 |
| DESCRIPTION | WO0073118 |
| OPPOSITION | DE10060380 |
| OPPOSITION | DE102004021550 |
| OPPOSITION | DE102007044796 |
| OPPOSITION | DE102009024506 |
| OPPOSITION | DE10305470 |
| OPPOSITION | DE4217681 |
| OPPOSITION | EP1772342 |
| OPPOSITION | EP1839990 |
| OPPOSITION | WO0073118 |
| OPPOSITION | WO2004008067 |
| SEARCH | DE102005024852 |
| SEARCH | DE102007058993 |
| SEARCH | DE102009024506 |
| SEARCH | DE202008012250U |
| SEARCH | EP1772342 |
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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