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The patent EP2679909 was granted to Convotherm Elektrogerte on Jul 12, 2017. The application was filed on May 8, 2013 under application number EP13002456A. The patent is currently recorded with a legal status of "Revoked".

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 | Apr 12, 2018 | PRINZ & PARTNER MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE102005040206 |
| DESCRIPTION | DE102008031378 |
| DESCRIPTION | EP1193584 |
| DESCRIPTION | EP2149755 |
| DESCRIPTION | US2002026325 |
| DESCRIPTION | US2007007279 |
| DESCRIPTION | US5361681 |
| DESCRIPTION | US6774345 |
| DESCRIPTION | US7454390 |
| DESCRIPTION | WO0049838 |
| EXAMINATION | US4833304 |
| OPPOSITION | DE102006029902 |
| OPPOSITION | DE102008031378 |
| OPPOSITION | DE202011002570U |
| OPPOSITION | EP2149755 |
| OPPOSITION | JP2005140671 |
| OPPOSITION | JP2010061382 |
| OPPOSITION | JPS58140522 |
| OPPOSITION | US2007001012 |
| OPPOSITION | US2011002677 |
| OPPOSITION | US4833304 |
| SEARCH | DE202011002570U |
| SEARCH | EP2149755 |
| SEARCH | JP2005140671 |
| SEARCH | US2007001012 |
| SEARCH | US2011002677 |
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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Claims
OPPO
Jan 29, 2019
Claims
OPPO
Jan 29, 2019
Claims
OPPO
Jan 29, 2019
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Jul 12, 2017
Jun 16, 2017
Decision to grant a European patent
Search/Exam
May 11, 2017
Filing of the translations of the claims
Search/Exam
May 11, 2017
French translation of claims
Search/Exam
May 11, 2017
German translation of the claims
Search/Exam
May 11, 2017
Payment of fees and costs
Search/Exam
May 11, 2017
Payment of fees and costs
Search/Exam
Apr 10, 2017
Submission concerning representation
Search/Exam
Feb 1, 2017
Feb 1, 2017
Feb 1, 2017
Intention to grant (signatures)
Search/Exam
Feb 1, 2017
Text intended for grant (clean copy)
Search/Exam
Feb 1, 2017
May 9, 2015
Amended claims with annotations
Search/Exam
May 9, 2015
Claims
Search/Exam
May 9, 2015
Apr 15, 2015
Amended claims with annotations
Search/Exam
Apr 15, 2015
Claims
Search/Exam
Apr 15, 2015
Dec 19, 2014
Annex to the communication
Search/Exam
Dec 19, 2014
Communication from the Examining Division
Search/Exam
Nov 13, 2014
Examination started
Search/Exam
Nov 3, 2014
Sep 23, 2014
Aug 28, 2014
Submission concerning representation
Search/Exam
Aug 20, 2014
Aug 20, 2014
Amended claims with annotations
Search/Exam
Aug 20, 2014
Amendments received before examination
Search/Exam
Aug 15, 2014
Aug 15, 2014
Amended claims with annotations
Search/Exam
Aug 15, 2014
Amendments received before examination
Search/Exam
Aug 7, 2014
Payment of fees and costs
Search/Exam
Aug 7, 2014
Payment of fees and costs
Search/Exam
Mar 17, 2014
Feb 7, 2014
Feb 7, 2014
European search opinion
Search/Exam
Feb 7, 2014
European search report
Search/Exam
Jan 15, 2014
Letter concerning fees and payments
Search/Exam
Jan 15, 2014
Payment of fees and costs
Search/Exam
Dec 5, 2013
Letter concerning the priority
Search/Exam
Dec 5, 2013
Priority document
Search/Exam
Dec 5, 2013
Priority document
Search/Exam
Dec 4, 2013
Notification of forthcoming publication
Search/Exam
Dec 2, 2013
Nov 26, 2013
Nov 26, 2013
Nov 12, 2013
Nov 12, 2013
Partial European search report
Search/Exam
Oct 31, 2013
Search started
Search/Exam
Jul 19, 2013
Communication to designated inventor
Search/Exam
Jul 10, 2013
Jul 10, 2013
Jul 10, 2013
Jul 10, 2013
Abstract
Search/Exam
Jul 10, 2013
Designation of inventor
Search/Exam
Jul 10, 2013
Request for grant of a European patent
Search/Exam
May 8, 2013
Abstract
Search/Exam
May 8, 2013
Claims
Search/Exam
May 8, 2013
Description
Search/Exam
May 8, 2013
Designation of inventor
Search/Exam
May 8, 2013
Drawings
Search/Exam
May 8, 2013
Request for grant of a European patent
Search/Exam