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The patent EP2686087 was granted to Alstom Technology on Jun 7, 2023. The application was filed on Mar 13, 2012 under application number EP12712467A. 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 |
|---|---|---|---|
| ELECTROSEP | Sep 17, 2020 | PETTY | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | WO2012100330 |
| INTERNATIONAL-SEARCH-REPORT | EP0286143 |
| INTERNATIONAL-SEARCH-REPORT | EP0602675 |
| INTERNATIONAL-SEARCH-REPORT | EP0810904 |
| INTERNATIONAL-SEARCH-REPORT | EP1216744 |
| INTERNATIONAL-SEARCH-REPORT | US2002020625 |
| INTERNATIONAL-SEARCH-REPORT | US2007148068 |
| INTERNATIONAL-SEARCH-REPORT | WO2010142716 |
| OPPOSITION | CA2736222 |
| OPPOSITION | EP1601445 |
| OPPOSITION | EP2667958 |
| OPPOSITION | US2002020625 |
| OPPOSITION | US2007286785 |
| OPPOSITION | US2010062926 |
| OPPOSITION | US2010108610 |
| OPPOSITION | US5137702 |
| OPPOSITION | US5292407 |
| OPPOSITION | US5788864 |
| OPPOSITION | US5910611 |
| OPPOSITION | WO2004080573 |
| OPPOSITION | WO2012100330 |
| OPPOSITION | WO9832520 |
| OTHER | CA2830343 |
| OTHER | EP2667958 |
| OTHER | US3554690 |
| OTHER | US5292407 |
| OTHER | US5338521 |
| OTHER | WO9832519 |
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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May 11, 2023
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OPPO
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Jan 2, 2020
Nov 21, 2019
Decision to grant a European patent
Search/Exam
Nov 6, 2019
(Electronic) Receipt
Search/Exam
Nov 6, 2019
Filing of the translations of the claims
Search/Exam
Nov 6, 2019
French translation of claims
Search/Exam
Nov 6, 2019
German translation of the claims
Search/Exam
Nov 6, 2019
Letter accompanying subsequently filed items
Search/Exam
Jun 28, 2019
Jun 28, 2019
Jun 28, 2019
Intention to grant (signatures)
Search/Exam
Jun 28, 2019
Text intended for grant (clean copy)
Search/Exam
Jun 28, 2019
Apr 4, 2019
(Electronic) Receipt
Search/Exam
Apr 4, 2019
Amended claims with annotations
Search/Exam
Apr 4, 2019
Claims
Search/Exam
Apr 4, 2019
Letter accompanying subsequently filed items
Search/Exam
Apr 4, 2019
Feb 6, 2019
Feb 1, 2019
(Electronic) Receipt
Search/Exam
Feb 1, 2019
Letter accompanying subsequently filed items
Search/Exam
Feb 1, 2019
Sep 24, 2018
Annex to the communication
Search/Exam
Sep 24, 2018
Communication from the Examining Division
Search/Exam
Feb 20, 2018
(Electronic) Receipt
Search/Exam
Feb 20, 2018
Letter accompanying subsequently filed items
Search/Exam
Feb 20, 2018
Reply to communication to third party
Search/Exam
Dec 6, 2017
Matter concerning the application
Search/Exam
Oct 11, 2017
Oct 11, 2017
Oct 5, 2017
(Electronic) Receipt
Search/Exam
Oct 5, 2017
Letter accompanying subsequently filed items
Search/Exam
Oct 5, 2017
Non-patent literature filed by a third party
Search/Exam
Oct 5, 2017
Non-patent literature filed by a third party
Search/Exam
Oct 5, 2017
Observations by third parties
Search/Exam
Oct 5, 2017
Patent document filed by a Third party
Search/Exam
Oct 5, 2017
Patent document filed by a Third party
Search/Exam
Oct 5, 2017
Patent document filed by a Third party
Search/Exam
Oct 5, 2017
Patent document filed by a Third party
Search/Exam
Mar 31, 2017
Feb 2, 2017
Letter concerning search matters
Search/Exam
Feb 2, 2017
Matter concerning the application
Search/Exam
Feb 2, 2017
Notification of the recording of a change
Search/Exam
Jan 27, 2017
Dec 20, 2016
Annexes in respect of a client data request
Search/Exam
Dec 20, 2016
Oct 19, 2016
(Electronic) Receipt
Search/Exam
Oct 19, 2016
Amended claims with annotations
Search/Exam
Oct 19, 2016
Amended description with annotations
Search/Exam
Oct 19, 2016
Claims
Search/Exam
Oct 19, 2016
Description
Search/Exam
Oct 19, 2016
Letter accompanying subsequently filed items
Search/Exam
Oct 19, 2016
Jun 29, 2016
Annex to the communication
Search/Exam
Jun 29, 2016
Communication from the Examining Division
Search/Exam
Sep 14, 2015
Sep 5, 2015
Jun 30, 2015
Examination started
Search/Exam
Jan 28, 2015
Submission concerning representation
Search/Exam
Apr 25, 2014
Apr 25, 2014
Apr 25, 2014
Amendments received before examination
Search/Exam
Apr 24, 2014
Apr 24, 2014
Apr 24, 2014
Amendments received before examination
Search/Exam
Jan 23, 2014
Jan 21, 2014
Submission concerning representation
Search/Exam
Jan 7, 2014
Dec 11, 2013
Letter concerning the inventor
Search/Exam
Nov 26, 2013
Nov 19, 2013
Letter which had not been notified
Search/Exam
Oct 25, 2013
Oct 23, 2013
Communication to designated inventor
Search/Exam
Oct 23, 2013
Communication to designated inventor
Search/Exam
Oct 23, 2013
Communication to designated inventor
Search/Exam
Oct 23, 2013
Communication to designated inventor
Search/Exam
Oct 23, 2013
Communication to designated inventor
Search/Exam
Oct 23, 2013
Communication to designated inventor
Search/Exam
Oct 4, 2013
Sep 24, 2013
Sep 24, 2013
Citation filed by a third party
Search/Exam
Sep 24, 2013
Citation filed by a third party
Search/Exam
Sep 24, 2013
Citation filed by a third party
Search/Exam
Sep 24, 2013
Sep 24, 2013
Observations by third parties
Search/Exam
Sep 24, 2013
Reply to Written Opinion prepared by the EPO
Search/Exam
Sep 11, 2013
(Electronic) Receipt
Search/Exam
Sep 11, 2013
Sep 11, 2013
Sep 11, 2013
Amendments received before examination
Search/Exam
Sep 11, 2013
Annex
Search/Exam
Sep 11, 2013
Request for entry into the European phase
Search/Exam
Jul 31, 2013
Information on entry into European phase
Search/Exam
Jul 9, 2013
Jun 26, 2013
Jun 14, 2013
Jun 14, 2013
Jun 14, 2013
Jun 14, 2013
Jun 14, 2013
Jun 14, 2013
Jun 14, 2013
Jun 14, 2013
Jun 14, 2013
Apr 15, 2013
Apr 15, 2013
Mar 4, 2013
Written opinion
PCT2
Mar 4, 2013
Mar 4, 2013
Feb 18, 2013
Notification of election of EPO
Search/Exam
Feb 7, 2013
Jan 29, 2013
Jan 29, 2013
Jan 16, 2013
Jan 16, 2013
Jan 16, 2013
PCT demand form
PCT2
Jan 16, 2013
Jan 16, 2013
Nov 2, 2012
Notification of the recording of a change
Search/Exam
Nov 2, 2012
Notification of the recording of a change
Search/Exam
Oct 16, 2012
Oct 16, 2012
Sep 27, 2012
Copy of the international search report
Search/Exam
Sep 27, 2012
Published international application - A1
Search/Exam
May 22, 2012
May 22, 2012
May 22, 2012
Mar 21, 2012
Abstract
PCTISA
Mar 21, 2012
Claims
PCTISA
Mar 21, 2012
Description
PCTISA
Mar 21, 2012
Drawings
PCTISA
Mar 21, 2012