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The patent EP2552431 was granted to Ewos Innovation on Jun 14, 2017. The application was filed on Mar 28, 2011 under application number EP11717046A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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 |
|---|---|---|---|
| NUTRECO ASSETS | Mar 12, 2018 | BECK GREENER | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | JPH02207758 |
| INTERNATIONAL-SEARCH-REPORT | WO2007090714 |
| OPPOSITION | KR20070054919 |
| OPPOSITION | WO2004091307 |
| OTHER | KR20070054919 |
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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OPPO
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Jul 4, 2023
Letter accompanying subsequently filed items
Search/Exam
Mar 22, 2023
Mar 22, 2023
Jan 18, 2023
Oct 7, 2022
Oct 7, 2022
Oct 7, 2022
Oct 7, 2022
Oct 7, 2022
Aug 25, 2022
(Electronic) Receipt
Appeal
Aug 25, 2022
Aug 25, 2022
Aug 25, 2022
Aug 16, 2022
Aug 15, 2022
(Electronic) Receipt
Appeal
Aug 15, 2022
Aug 15, 2022
Aug 15, 2022
Aug 12, 2022
Aug 11, 2022
Aug 10, 2022
Aug 8, 2022
Aug 3, 2022
(Electronic) Receipt
Appeal
Aug 3, 2022
Aug 3, 2022
Jul 5, 2022
Jul 5, 2022
Jul 4, 2022
Jun 27, 2022
(Electronic) Receipt
Appeal
Jun 27, 2022
General enquiry
Appeal
Jun 27, 2022
May 16, 2022
May 16, 2022
May 11, 2022
Feb 18, 2022
Jan 31, 2022
(Electronic) Receipt
Appeal
Jan 31, 2022
Jan 31, 2022
Dec 8, 2021
Dec 8, 2021
Dec 3, 2021
Jun 8, 2021
Jun 2, 2021
(Electronic) Receipt
Appeal
Jun 2, 2021
Jun 2, 2021
Aug 28, 2020
May 26, 2020
May 26, 2020
May 13, 2020
(Electronic) Receipt
Appeal
May 13, 2020
May 13, 2020
May 13, 2020
May 13, 2020
Reply to appeal
Appeal
Apr 30, 2020
(Electronic) Receipt
Appeal
Apr 30, 2020
Apr 30, 2020
Reply to appeal
Appeal
Jan 14, 2020
Jan 14, 2020
Dec 31, 2019
(Electronic) Receipt
Appeal
Dec 31, 2019
Dec 31, 2019
Dec 31, 2019
Dec 31, 2019
Dec 17, 2019
(Electronic) Receipt
Appeal
Dec 17, 2019
Dec 17, 2019
Dec 17, 2019
Dec 17, 2019
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Nov 25, 2019
Nov 25, 2019
Nov 25, 2019
Nov 25, 2019
Nov 19, 2019
(Electronic) Receipt
Appeal
Nov 19, 2019
Nov 19, 2019
Notice of appeal
Appeal
Nov 14, 2019
(Electronic) Receipt
Appeal
Nov 14, 2019
Nov 14, 2019
Nov 14, 2019
Notice of appeal
Appeal
Sep 26, 2019
Sep 23, 2019
Sep 20, 2019
Sep 17, 2019
Sep 17, 2019
Sep 17, 2019
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Means of redress
OPPO
Sep 17, 2019
Sep 17, 2019
Sep 17, 2019
Sep 17, 2019
Sep 17, 2019
Jun 18, 2019
May 20, 2019
May 15, 2019
May 15, 2019
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Claims
OPPO
May 15, 2019
Claims
OPPO
May 15, 2019
Claims
OPPO
May 15, 2019
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Claims
OPPO
Mar 22, 2019
Claims
OPPO
Mar 22, 2019
Claims
OPPO
Mar 22, 2019
Claims
OPPO
Mar 22, 2019
Claims
OPPO
Mar 22, 2019
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Jan 25, 2019
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Dec 4, 2018
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Jun 14, 2017
May 18, 2017
Decision to grant a European patent
Search/Exam
May 2, 2017
(Electronic) Receipt
Search/Exam
May 2, 2017
Filing of the translations of the claims
Search/Exam
May 2, 2017
French translation of claims
Search/Exam
May 2, 2017
German translation of the claims
Search/Exam
May 2, 2017
Letter accompanying subsequently filed items
Search/Exam
Jan 27, 2017
Jan 27, 2017
Jan 27, 2017
Intention to grant (signatures)
Search/Exam
Jan 27, 2017
Text intended for grant (clean copy)
Search/Exam
Jan 27, 2017
Jul 26, 2016
(Electronic) Receipt
Search/Exam
Jul 26, 2016
Letter accompanying subsequently filed items
Search/Exam
Jul 26, 2016
Jun 2, 2016
May 27, 2016
(Electronic) Receipt
Search/Exam
May 27, 2016
Letter accompanying subsequently filed items
Search/Exam
May 27, 2016
Jan 22, 2016
Annex to the communication
Search/Exam
Jan 22, 2016
Communication from the Examining Division
Search/Exam
Jun 16, 2014
Jun 6, 2014
Non-patent literature filed by a third party
Search/Exam
Jun 6, 2014
Non-patent literature filed by a third party
Search/Exam
Jun 6, 2014
Non-patent literature filed by a third party
Search/Exam
Jun 6, 2014
Non-patent literature filed by a third party
Search/Exam
Jun 6, 2014
Observations by third parties
Search/Exam
Jun 6, 2014
Patent document filed by a Third party
Search/Exam
Sep 5, 2013
(Electronic) Receipt
Search/Exam
Sep 5, 2013
Letter accompanying subsequently filed items
Search/Exam
Sep 5, 2013
Jul 5, 2013
Jun 6, 2013
(Electronic) Receipt
Search/Exam
Jun 6, 2013
Letter accompanying subsequently filed items
Search/Exam
Jun 6, 2013
Letter concerning the inventor
Search/Exam
May 23, 2013
May 22, 2013
(Electronic) Receipt
Search/Exam
May 22, 2013
Letter accompanying subsequently filed items
Search/Exam
May 22, 2013
Reply to Written Opinion prepared by the EPO
Search/Exam
May 8, 2013
May 8, 2013
May 3, 2013
May 1, 2013
Letter which had not been notified
Search/Exam
May 1, 2013
Letter which had not been notified
Search/Exam
Apr 5, 2013
Letter concerning the inventor
Search/Exam
Jan 9, 2013
Dec 7, 2012
Letter which had not been notified
Search/Exam
Nov 22, 2012
Nov 19, 2012
Communication to designated inventor
Search/Exam
Nov 19, 2012
Communication to designated inventor
Search/Exam
Nov 19, 2012
Communication to designated inventor
Search/Exam
Nov 19, 2012
Communication to designated inventor
Search/Exam
Nov 19, 2012
Communication to designated inventor
Search/Exam
Oct 26, 2012
(Electronic) Receipt
Search/Exam
Oct 26, 2012
Oct 26, 2012
Request for entry into the European phase
Search/Exam
Oct 3, 2012
Aug 3, 2012
Information on entry into European phase
Search/Exam
Jul 4, 2012
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Mar 29, 2012
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Dec 21, 2011
Oct 31, 2011
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PCT demand form
PCT2
Sep 29, 2011
Copy of the international search report
Search/Exam
Sep 29, 2011
Published international application - A1
Search/Exam
Jul 4, 2011
Jul 4, 2011
Jul 4, 2011
May 13, 2011
Apr 28, 2011
Abstract
PCTISA
Apr 28, 2011
Claims
PCTISA
Apr 28, 2011
Description
PCTISA
Apr 28, 2011
Drawings
PCTISA