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The patent EP2781839 was granted to Hanning Elektro Werke on Oct 6, 2021. The application was filed on Mar 17, 2014 under application number EP14160237A. 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 |
|---|---|---|---|
| RATIONAL | Jan 18, 2019 | PRINZ & PARTNER MBB | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | DE3914760 |
| OPPOSITION | DE10154630 |
| OPPOSITION | DE102005058250 |
| OPPOSITION | DE102007052091 |
| OPPOSITION | DE102007060975 |
| OPPOSITION | DE102010040444 |
| OPPOSITION | DE1428394 |
| OPPOSITION | DE202007018745U |
| OPPOSITION | DE202009003889U |
| OPPOSITION | DE3914760 |
| OPPOSITION | DE69818391T |
| OPPOSITION | EP0382692 |
| OPPOSITION | EP1717518 |
| OPPOSITION | EP2420175 |
| OPPOSITION | EP2422679 |
| OTHER | DE3914760 |
| OTHER | US2007157920 |
| SEARCH | DE102006025508 |
| SEARCH | EP1717518 |
| SEARCH | EP1862104 |
| SEARCH | US2007157920 |
| SEARCH | US2009178576 |
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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Apr 30, 2018
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Decision to grant a European patent
Search/Exam
Mar 12, 2018
(Electronic) Receipt
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Mar 12, 2018
English translation of the claims
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Mar 12, 2018
Filing of the translations of the claims
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Mar 12, 2018
French translation of claims
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Mar 12, 2018
Letter accompanying subsequently filed items
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Intention to grant (signatures)
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Nov 6, 2017
Text intended for grant (clean copy)
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Nov 6, 2017
Sep 27, 2017
Annex to the communication
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Sep 27, 2017
Consultation by telephone/in person
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Sep 27, 2017
Jun 28, 2017
(Electronic) Receipt
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Jun 28, 2017
Amended claims with annotations
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Amended claims with annotations
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Jun 28, 2017
Claims
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Jun 28, 2017
Claims
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Jun 28, 2017
Letter accompanying subsequently filed items
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Jun 28, 2017
Apr 3, 2017
Letter concerning fees and payments
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Feb 27, 2017
Annex to the communication
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Feb 27, 2017
Communication from the Examining Division
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Feb 17, 2017
Examination started
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Nov 28, 2016
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(Electronic) Receipt
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Letter accompanying subsequently filed items
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Nov 18, 2016
Observations by third parties
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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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Oct 11, 2016
Amendments received before examination
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Oct 11, 2016
Letter accompanying subsequently filed items
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Sep 7, 2016
Letter concerning fees and payments
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Apr 18, 2016
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European search opinion
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Mar 11, 2016
European search report
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Mar 11, 2016
Information on Search Strategy
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Oct 26, 2015
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Partial European search report
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Oct 13, 2015
Search started
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Jul 1, 2015
Submission concerning representation
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Jun 17, 2015
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Priority search results
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Aug 27, 2014
Notification of forthcoming publication
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Aug 20, 2014
Modified abstract
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Jun 6, 2014
Communication to designated inventor
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Jun 6, 2014
Communication to designated inventor
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Jun 6, 2014
Communication to designated inventor
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Mar 28, 2014
Letter accompanying subsequently filed items
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Mar 28, 2014
Letter concerning the priority
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Mar 28, 2014
Priority document
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Mar 28, 2014
Priority document
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Mar 17, 2014
Abstract
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Mar 17, 2014
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Claims
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Mar 17, 2014
Description
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Mar 17, 2014
Designation of inventor
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Mar 17, 2014
Designation of inventor
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Designation of inventor
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Mar 17, 2014
Drawings
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Mar 17, 2014
Request for grant of a European patent
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