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The patent EP2515483 was granted to Mitsubishi Electric on Mar 2, 2022. The application was filed on Dec 18, 2009 under application number EP09852314A. 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 |
|---|---|---|---|
| SIEMENS MOBILITY | Dec 6, 2018 | - | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | JP2004503150 |
| INTERNATIONAL-SEARCH-REPORT | JP2005260828 |
| INTERNATIONAL-SEARCH-REPORT | JPH0446431 |
| OPPOSITION | EP1558002 |
| OPPOSITION | US2007025306 |
| OPPOSITION | US2008092123 |
| OPPOSITION | US2012089713 |
| OPPOSITION | US6982953 |
| OPPOSITION | WO0205107 |
| OPPOSITION | WO2007124859 |
| SEARCH | US6982953 |
| SEARCH | WO0205107 |
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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OPPO
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Description
OPPO
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Decision to grant a European patent
Search/Exam
Jan 29, 2018
(Electronic) Receipt
Search/Exam
Jan 29, 2018
Filing of the translations of the claims
Search/Exam
Jan 29, 2018
French translation of claims
Search/Exam
Jan 29, 2018
German translation of the claims
Search/Exam
Jan 29, 2018
Letter accompanying subsequently filed items
Search/Exam
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Intention to grant (signatures)
Search/Exam
Sep 21, 2017
Text intended for grant (clean copy)
Search/Exam
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(Electronic) Receipt
Search/Exam
Jul 28, 2017
Amended claims with annotations
Search/Exam
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Amended description with annotations
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Claims
Search/Exam
Jul 28, 2017
Description
Search/Exam
Jul 28, 2017
Letter accompanying subsequently filed items
Search/Exam
Jul 28, 2017
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Annex to the communication
Search/Exam
Mar 31, 2017
Communication from the Examining Division
Search/Exam
Mar 21, 2017
Examination started
Search/Exam
Oct 11, 2016
(Electronic) Receipt
Search/Exam
Oct 11, 2016
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Amended claims with annotations
Search/Exam
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Amended description with annotations
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Amendments received before examination
Search/Exam
Oct 11, 2016
Letter accompanying subsequently filed items
Search/Exam
Jun 10, 2016
Submission concerning representation
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Submission concerning representation
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Apr 22, 2016
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European search opinion
Search/Exam
Apr 6, 2016
Information on Search Strategy
Search/Exam
Apr 6, 2016
Supplementary European search report
Search/Exam
Mar 30, 2016
Search started
Search/Exam
Sep 26, 2012
Notification of forthcoming publication
Search/Exam
Jul 25, 2012
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(Electronic) Receipt
Search/Exam
Jul 10, 2012
Abstract
Search/Exam
Jul 10, 2012
Abstract
Search/Exam
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Claims
Search/Exam
Jul 10, 2012
Description
Search/Exam
Jul 10, 2012
Drawings
Search/Exam
Jul 10, 2012
Request for entry into the European phase
Search/Exam
Jul 10, 2012
Submission concerning representation
Search/Exam
Jul 3, 2012
Apr 27, 2012
Information on entry into European phase
Search/Exam
Jun 23, 2011
Copy of the international search report
Search/Exam
Jun 23, 2011
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International publication pamphlet
Search/Exam