The patent EP2681797 was granted to Commissariat Lnergie Atomique ET AUX Nergies Alternatives on Nov 14, 2018. The application was originally filed on Mar 2, 2012 under application number EP12708000A. The patent is currently recorded with a legal status of "Opposition Rejected".

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.
Patent citations refer to prior patents cited during different phases such as opposition or international search.
NPL citations refer to non-patent references such as research papers, articles, or other publications cited during examination or opposition phases.
| Citation Phase | Reference Text | Link |
|---|---|---|
| OPPOSITION | - KEIR DOUGLAS WILKIE, "A cascaded H - bridge Multilevel Converter with Integrated Battery Management", Thesis, University of Sheffield, (20100500), XP055631382 | - |
| OPPOSITION | - TIM CUNNYNGHAM, "Cascade Multilevel Inverters for Large Hybrid-Electrical Vehicle Applications with Variant DC Sources", Thesis, University of Tennesse, Knoxville, (20010500), XP055631379 | - |
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Description
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Sep 12, 2023
Sep 6, 2023
(Electronic) Receipt
Appeal
Sep 6, 2023
Advice of delivery
Appeal
Sep 6, 2023
Sep 5, 2023
Advice of delivery
Appeal
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Appeal
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Advice of delivery
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Mar 17, 2023
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Reply to appeal
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Nov 2, 2021
Refund of fees
Appeal
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Aug 24, 2021
Notice of appeal
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Appeal
Jul 15, 2021
Advice of delivery
Appeal
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Nov 26, 2018
Oct 18, 2018
Decision to grant a European patent
Search/Exam
Sep 20, 2018
(Electronic) Receipt
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Sep 20, 2018
English translation of the claims
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Sep 20, 2018
Filing of the translations of the claims
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Sep 20, 2018
German translation of the claims
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May 15, 2018
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Intention to grant (signatures)
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May 15, 2018
Text intended for grant (clean copy)
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May 15, 2018
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Apr 11, 2018
Apr 3, 2018
(Electronic) Receipt
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Apr 3, 2018
Amended claims with annotations
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Apr 3, 2018
Claims
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Apr 3, 2018
Description
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Apr 3, 2018
Letter accompanying subsequently filed items
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Apr 3, 2018
Mar 13, 2018
(Electronic) Receipt
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Mar 13, 2018
Claims
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Mar 13, 2018
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Mar 13, 2018
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Mar 13, 2018
Letter accompanying subsequently filed items
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Mar 13, 2018
Oct 30, 2017
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Oct 30, 2017
Advice of delivery
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Oct 30, 2017
Letter accompanying subsequently filed items
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Oct 23, 2017
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Oct 13, 2017
Acknowledgement of a document
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Oct 13, 2017
Annex to the communication
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Oct 13, 2017
Summons to attend oral proceedings
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Sep 29, 2017
Preparation for oral proceedings
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Jan 23, 2017
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Submission concerning representation
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Jan 18, 2017
Submission concerning representation
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Dec 21, 2016
(Electronic) Receipt
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Dec 21, 2016
Amended claims with annotations
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Dec 21, 2016
Claims
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Dec 21, 2016
Letter accompanying subsequently filed items
Search/Exam
Dec 21, 2016
Dec 19, 2016
Dec 14, 2016
(Electronic) Receipt
Search/Exam
Dec 14, 2016
Letter accompanying subsequently filed items
Search/Exam
Dec 14, 2016
Aug 9, 2016
Annex to a communication
Search/Exam
Aug 9, 2016
Annex to the communication
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Aug 9, 2016
Communication from the Examining Division
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Mar 31, 2016
(Electronic) Receipt
Search/Exam
Mar 31, 2016
Amended claims with annotations
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Mar 31, 2016
Claims
Search/Exam
Mar 31, 2016
Letter accompanying subsequently filed items
Search/Exam
Mar 31, 2016
Feb 18, 2016
Feb 15, 2016
(Electronic) Receipt
Search/Exam
Feb 15, 2016
Letter accompanying subsequently filed items
Search/Exam
Feb 15, 2016
Oct 8, 2015
Annex to the communication
Search/Exam
Oct 8, 2015
Communication from the Examining Division
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Jul 7, 2014
(Electronic) Receipt
Search/Exam
Jul 7, 2014
Letter accompanying subsequently filed items
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Jul 7, 2014
Jun 5, 2014
Apr 22, 2014
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Apr 22, 2014
Letter accompanying subsequently filed items
Search/Exam
Apr 22, 2014
Reply to Written Opinion prepared by the EPO
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Dec 11, 2013
Oct 18, 2013
Oct 14, 2013
Communication to designated inventor
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Oct 9, 2013
Priority search results copy provided by EPO
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Oct 1, 2013
(Electronic) Receipt
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Oct 1, 2013
Oct 1, 2013
Oct 1, 2013
Request for entry into the European phase
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Jul 12, 2013
Information on entry into European phase
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Feb 19, 2013
Feb 19, 2013
Notification of the recording of a change
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Dec 27, 2012
Copy of the international search report
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Dec 27, 2012
Copy of the international search report
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Dec 27, 2012
Nov 6, 2012
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Sep 24, 2012
Sep 24, 2012
Sep 7, 2012
Published international application - A2
Search/Exam
Mar 2, 2012
(Electronic) Receipt
PCTRO
Mar 2, 2012
Abstract
PCTRO
Mar 2, 2012
Claims
PCTRO
Mar 2, 2012
Description
PCTRO
Mar 2, 2012
Drawings
PCTRO