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The patent EP2905794 was granted to Siemens on Apr 25, 2018. The application was filed on Dec 10, 2014 under application number EP14197126A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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 |
|---|---|---|---|
| EATON INDUSTRIES | Jan 10, 2019 | KBN | ADMISSIBLE |
| EATON INDUSTRIES | Jan 10, 2019 | PATENTANWALTE BAUER VORBERG KAYSER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | US1164164 |
| EXAMINATION | US2788421 |
| OPPOSITION | DE10019121 |
| OPPOSITION | DE1175776 |
| OPPOSITION | DE19830232 |
| OPPOSITION | DE3142883 |
| OPPOSITION | EP0079977 |
| SEARCH | AT251684B |
| SEARCH | EP2535908 |
| SEARCH | WO2006120140 |
| SEARCH | WO2010079106 |
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.
Date
Description
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(Electronic) Receipt
Appeal
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Appeal
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Decision to grant a European patent
Search/Exam
Mar 15, 2018
(Electronic) Receipt
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French translation of claims
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German translation of the claims
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Mar 15, 2018
Letter accompanying subsequently filed items
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Intention to grant (signatures)
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Text intended for grant (clean copy)
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(Electronic) Receipt
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Amended claims with annotations
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Amended description with annotations
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Claims
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Dec 16, 2016
Description
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Letter accompanying subsequently filed items
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(Electronic) Receipt
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Nov 30, 2016
Letter accompanying subsequently filed items
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Nov 30, 2016
Matter concerning the application
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Nov 30, 2016
Priority search results
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Aug 24, 2016
Annex to the communication
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Aug 24, 2016
Communication from the Examining Division
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Apr 25, 2016
(Electronic) Receipt
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Apr 25, 2016
Letter accompanying subsequently filed items
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Amended description with annotations
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Letter accompanying subsequently filed items
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Aug 17, 2015
Jul 15, 2015
Notification of forthcoming publication
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European search opinion
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Jul 9, 2015
European search report
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Jun 11, 2015
Search started
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May 20, 2015
Submission concerning representation
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Mar 25, 2015
Mar 10, 2015
Letter which had not been notified
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Feb 19, 2015
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Dec 10, 2014
Abstract
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Dec 10, 2014
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Dec 10, 2014
Description
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Dec 10, 2014
Designation of inventor
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Dec 10, 2014
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Dec 10, 2014
Request for grant of a European patent
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