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The patent EP2202125 was granted to Alstom Transport on Dec 8, 2021. The application was filed on Dec 18, 2009 under application number EP09306276A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 |
|---|---|---|---|
| BOMBARDIER TRANSPORTATION | May 15, 2019 | ALATIS | WITHDRAWN |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
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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Communication from the Examining Division
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Notification of forthcoming publication
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Refund of fees
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Letter concerning the priority
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Request for grant of a European patent
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