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The patent EP2731891 was granted to Mars on Dec 2, 2020. The application was filed on Jul 11, 2012 under application number EP12743201A. 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 |
|---|---|---|---|
| KRUGER | Feb 5, 2018 | KUTZENBERGER WOLFF & PARTNER | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP0179641 |
| DESCRIPTION | EP0272922 |
| DESCRIPTION | EP0468079 |
| DESCRIPTION | EP0512468 |
| DESCRIPTION | EP0821906 |
| DESCRIPTION | EP1529739 |
| DESCRIPTION | FR2556323 |
| DESCRIPTION | US5325765 |
| DESCRIPTION | US5840189 |
| DESCRIPTION | WO0160219 |
| DESCRIPTION | WO0160712 |
| DESCRIPTION | WO02082963 |
| DESCRIPTION | WO0219875 |
| DESCRIPTION | WO2005026018 |
| DESCRIPTION | WO9401344 |
| INTERNATIONAL-SEARCH-REPORT | EP2230195 |
| INTERNATIONAL-SEARCH-REPORT | US2002088807 |
| INTERNATIONAL-SEARCH-REPORT | US2010239717 |
| OPPOSITION | DE102009041633 |
| OPPOSITION | DE102011012881 |
| OPPOSITION | DE2341187 |
| OPPOSITION | EP2230195 |
| OPPOSITION | US2002088807 |
| OPPOSITION | US2010239717 |
| OPPOSITION | WO2008011913 |
| OPPOSITION | WO2012123106 |
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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Nov 5, 2020
Nov 5, 2020
Oct 30, 2020
Sep 11, 2020
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Means of redress
OPPO
Jan 7, 2020
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Claims
OPPO
Jul 10, 2019
Jul 10, 2019
Jul 9, 2019
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Apr 25, 2019
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Jun 27, 2018
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Authorisation
OPPO
Jun 15, 2018
Jun 15, 2018
Jun 1, 2018
Feb 15, 2018
Feb 15, 2018
Feb 9, 2018
Feb 5, 2018
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May 4, 2017
Apr 6, 2017
Decision to grant a European patent
Search/Exam
Mar 23, 2017
Mar 23, 2017
Mar 23, 2017
Intention to grant (signatures)
Search/Exam
Mar 23, 2017
Text intended for grant (clean copy)
Search/Exam
Mar 23, 2017
Mar 21, 2017
Mar 10, 2017
(Electronic) Receipt
Search/Exam
Mar 10, 2017
Amended claims with annotations
Search/Exam
Mar 10, 2017
Claims
Search/Exam
Mar 10, 2017
French translation of claims
Search/Exam
Mar 10, 2017
German translation of the claims
Search/Exam
Mar 10, 2017
Letter accompanying subsequently filed items
Search/Exam
Mar 10, 2017
Nov 2, 2016
Nov 2, 2016
Nov 2, 2016
Intention to grant (signatures)
Search/Exam
Nov 2, 2016
Text intended for grant (clean copy)
Search/Exam
Nov 2, 2016
Sep 12, 2016
(Electronic) Receipt
Search/Exam
Sep 12, 2016
Amended claims with annotations
Search/Exam
Sep 12, 2016
Amended description with annotations
Search/Exam
Sep 12, 2016
Claims
Search/Exam
Sep 12, 2016
Description
Search/Exam
Sep 12, 2016
Letter accompanying subsequently filed items
Search/Exam
Sep 12, 2016
Jun 1, 2016
Annex to the communication
Search/Exam
Jun 1, 2016
Communication from the Examining Division
Search/Exam
May 20, 2016
(Electronic) Receipt
Search/Exam
May 20, 2016
Amended claims with annotations
Search/Exam
May 20, 2016
Amended description with annotations
Search/Exam
May 20, 2016
Claims
Search/Exam
May 20, 2016
Description
Search/Exam
May 20, 2016
Letter accompanying subsequently filed items
Search/Exam
May 20, 2016
Feb 23, 2016
Feb 17, 2016
Citation filed by a third party
Search/Exam
Feb 17, 2016
Observations by third parties
Search/Exam
Jan 20, 2016
Annex to the communication
Search/Exam
Jan 20, 2016
Communication from the Examining Division
Search/Exam
Jan 14, 2016
Jan 5, 2016
(Electronic) Receipt
Search/Exam
Jan 5, 2016
Amended claims with annotations
Search/Exam
Jan 5, 2016
Amended description with annotations
Search/Exam
Jan 5, 2016
Claims
Search/Exam
Jan 5, 2016
Description
Search/Exam
Jan 5, 2016
Letter accompanying subsequently filed items
Search/Exam
Jan 5, 2016
Sep 22, 2015
Sep 22, 2015
Sep 22, 2015
Intention to grant (signatures)
Search/Exam
Sep 22, 2015
Text intended for grant
Search/Exam
Aug 12, 2015
(Electronic) Receipt
Search/Exam
Aug 12, 2015
Letter accompanying subsequently filed items
Search/Exam
Aug 12, 2015
Jun 25, 2015
Annex to the communication
Search/Exam
Jun 25, 2015
Communication from the Examining Division
Search/Exam
Jun 17, 2015
Examination started
Search/Exam
Aug 28, 2014
(Electronic) Receipt
Search/Exam
Aug 28, 2014
Aug 28, 2014
Amended claims with annotations
Search/Exam
Aug 28, 2014
Aug 28, 2014
Amended description with annotations
Search/Exam
Aug 28, 2014
Amendments received before examination
Search/Exam
Aug 28, 2014
Letter accompanying subsequently filed items
Search/Exam
Apr 24, 2014
Mar 14, 2014
Mar 12, 2014
Communication to designated inventor
Search/Exam
Mar 12, 2014
Communication to designated inventor
Search/Exam
Feb 11, 2014
(Electronic) Receipt
Search/Exam
Feb 11, 2014
Request for entry into the European phase
Search/Exam
Jan 28, 2014
Nov 22, 2013
Information on entry into European phase
Search/Exam
Apr 25, 2013
Copy of the international search report
Search/Exam
Apr 25, 2013
Mar 5, 2013
Mar 5, 2013
Mar 5, 2013
Feb 6, 2013
Jan 17, 2013
Published international application - A2
Search/Exam
Jul 23, 2012
Abstract
PCTISA
Jul 23, 2012
Claims
PCTISA
Jul 23, 2012
Description
PCTISA
Jul 23, 2012
Drawings
PCTISA