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The patent EP2558435 was granted to LEO Pharma on Jun 7, 2017. The application was filed on Apr 18, 2011 under application number EP11731076A. 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 |
|---|---|---|---|
| GENERICS UK | Mar 7, 2018 | FRKELLY | ADMISSIBLE |
| TEVA PHARMACEUTICALS | Mar 7, 2018 | D YOUNG | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP1015413 |
| DESCRIPTION | WO2007053912 |
| DESCRIPTION | WO2007059584 |
| DESCRIPTION | WO2007068963 |
| DESCRIPTION | WO2008131491 |
| INTERNATIONAL-SEARCH-REPORT | WO2007053912 |
| INTERNATIONAL-SEARCH-REPORT | WO2007059584 |
| INTERNATIONAL-SEARCH-REPORT | WO2008131491 |
| OPPOSITION | WO2007053912 |
| OPPOSITION | WO2007059584 |
| OPPOSITION | WO2008131491 |
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.
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Decision to grant a European patent
Search/Exam
Mar 28, 2017
Mar 17, 2017
(Electronic) Receipt
Search/Exam
Mar 17, 2017
Filing of the translations of the claims
Search/Exam
Mar 17, 2017
French translation of claims
Search/Exam
Mar 17, 2017
German translation of the claims
Search/Exam
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Citation filed by a third party
Search/Exam
Jan 23, 2017
Citation filed by a third party
Search/Exam
Jan 23, 2017
Non-patent literature filed by a third party
Search/Exam
Jan 23, 2017
Observations by third parties
Search/Exam
Nov 22, 2016
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Intention to grant (signatures)
Search/Exam
Nov 22, 2016
Text intended for grant (clean copy)
Search/Exam
Nov 22, 2016
Feb 3, 2016
(Electronic) Receipt
Search/Exam
Feb 3, 2016
Amended claims with annotations
Search/Exam
Feb 3, 2016
Claims
Search/Exam
Feb 3, 2016
Letter accompanying subsequently filed items
Search/Exam
Feb 3, 2016
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(Electronic) Receipt
Search/Exam
Nov 19, 2015
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Annex to the communication
Search/Exam
Jul 29, 2015
Communication from the Examining Division
Search/Exam
Sep 12, 2014
(Electronic) Receipt
Search/Exam
Sep 12, 2014
Amended claims with annotations
Search/Exam
Sep 12, 2014
Claims
Search/Exam
Sep 12, 2014
Letter accompanying subsequently filed items
Search/Exam
Sep 12, 2014
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(Electronic) Receipt
Search/Exam
Jul 1, 2014
Mar 5, 2014
Annex to the communication
Search/Exam
Mar 5, 2014
Communication from the Examining Division
Search/Exam
Feb 27, 2014
Examination started
Search/Exam
Jun 13, 2013
(Electronic) Receipt
Search/Exam
Jun 13, 2013
Amendments received before examination
Search/Exam
Jun 13, 2013
Letter accompanying subsequently filed items
Search/Exam
Jan 23, 2013
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Communication to designated inventor
Search/Exam
Oct 31, 2012
Oct 10, 2012
Notification of the recording of a change
Search/Exam
Oct 9, 2012
(Electronic) Receipt
Search/Exam
Oct 9, 2012
Request for entry into the European phase
Search/Exam
Aug 24, 2012
Information on entry into European phase
Search/Exam
Nov 8, 2011
Oct 20, 2011
Copy of the international search report
Search/Exam
Oct 20, 2011
Published international application - A1
Search/Exam
Sep 19, 2011
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Jul 14, 2011
Abstract
PCTISA
Jul 14, 2011
Claims
PCTISA
Jul 14, 2011
Description
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