Patent No. EP2905794 (titled "Static Contact Support For Circuit Breaker And Circuit Breaker Thereof") was filed by Siemens on Dec 10, 2014. The application was issued on Apr 25, 2018.

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 |
|---|---|---|
| EATON INDUSTRIES | Jan 10, 2019 | KBN |
| EATON INDUSTRIES | Jan 10, 2019 | PATENTANWALTE BAUER VORBERG KAYSER |
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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