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The patent EP2252289 was granted to Mitsubishi Tanabe Pharma on Oct 23, 2019. The application was filed on Jan 16, 2009 under application number EP09701670A. 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 |
|---|---|---|---|
| ELKINGTON AND FIFE | Jul 22, 2020 | - | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | WO0116147 |
| DESCRIPTION | WO02053573 |
| DESCRIPTION | WO2006035796 |
| INTERNATIONAL-SEARCH-REPORT | EP1323710 |
| INTERNATIONAL-SEARCH-REPORT | EP1803721 |
| INTERNATIONAL-SEARCH-REPORT | EP1803729 |
| INTERNATIONAL-SEARCH-REPORT | WO0196295 |
| INTERNATIONAL-SEARCH-REPORT | WO2005012326 |
| INTERNATIONAL-SEARCH-REPORT | WO2006073167 |
| INTERNATIONAL-SEARCH-REPORT | WO2006080577 |
| INTERNATIONAL-SEARCH-REPORT | WO2006116157 |
| INTERNATIONAL-SEARCH-REPORT | WO2007140191 |
| INTERNATIONAL-SEARCH-REPORT | WO2008013321 |
| INTERNATIONAL-SEARCH-REPORT | WO2008013322 |
| INTERNATIONAL-SEARCH-REPORT | WO2008131149 |
| INTERNATIONAL-SEARCH-REPORT | WO2009022009 |
| OPPOSITION | EP1323710 |
| OPPOSITION | EP1803721 |
| OPPOSITION | EP1803729 |
| OPPOSITION | EP2395984 |
| OPPOSITION | US2005209166 |
| OPPOSITION | US7074794 |
| OPPOSITION | WO0196295 |
| OPPOSITION | WO2005012326 |
| OPPOSITION | WO2006073167 |
| OPPOSITION | WO2006080577 |
| OPPOSITION | WO2006116157 |
| OPPOSITION | WO2007140191 |
| OPPOSITION | WO2008013321 |
| OPPOSITION | WO2008013322 |
| OPPOSITION | WO2008131149 |
| OPPOSITION | WO2009022009 |
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 4, 2019
Sep 26, 2019
Decision to grant a European patent
Search/Exam
Sep 12, 2019
Filing of the translations of the claims
Search/Exam
Jul 2, 2019
Jul 2, 2019
Jul 2, 2019
Intention to grant (signatures)
Search/Exam
Jul 2, 2019
Text intended for grant (clean copy)
Search/Exam
Jul 2, 2019
Jun 7, 2019
Change to the inventor details
Search/Exam
Jun 3, 2019
(Electronic) Receipt
Search/Exam
Jun 3, 2019
Amended description with annotations
Search/Exam
Jun 3, 2019
Description
Search/Exam
Jun 3, 2019
French translation of claims
Search/Exam
Jun 3, 2019
German translation of the claims
Search/Exam
Jun 3, 2019
Letter accompanying subsequently filed items
Search/Exam
Jun 3, 2019
Jan 24, 2019
Jan 24, 2019
Jan 24, 2019
Intention to grant (signatures)
Search/Exam
Jan 24, 2019
Text intended for grant (clean copy)
Search/Exam
Jan 24, 2019
Dec 18, 2018
(Electronic) Receipt
Search/Exam
Dec 18, 2018
Amended description with annotations
Search/Exam
Dec 18, 2018
Description
Search/Exam
Dec 18, 2018
Letter accompanying subsequently filed items
Search/Exam
Dec 18, 2018
Oct 8, 2018
Annex to the communication
Search/Exam
Oct 8, 2018
Communication from the Examining Division
Search/Exam
Sep 19, 2018
(Electronic) Receipt
Search/Exam
Sep 19, 2018
Amended claims with annotations
Search/Exam
Sep 19, 2018
Claims
Search/Exam
Sep 19, 2018
Letter accompanying subsequently filed items
Search/Exam
Sep 19, 2018
May 7, 2018
Apr 27, 2018
Mar 9, 2018
Annex to the communication
Search/Exam
Mar 9, 2018
Communication from the Examining Division
Search/Exam
May 9, 2016
Amended claims with annotations
Search/Exam
May 9, 2016
Claims
Search/Exam
May 9, 2016
Mar 1, 2016
Feb 22, 2016
Nov 6, 2015
Annex to the communication
Search/Exam
Nov 6, 2015
Communication from the Examining Division
Search/Exam
Sep 3, 2015
Jul 7, 2015
Mar 12, 2015
Submission concerning representation
Search/Exam
Jan 7, 2015
Oct 12, 2012
Amended claims with annotations
Search/Exam
Oct 12, 2012
Claims
Search/Exam
Oct 12, 2012
Aug 21, 2012
Aug 10, 2012
Apr 3, 2012
Annex to the communication
Search/Exam
Apr 3, 2012
Communication from the Examining Division
Search/Exam
Nov 8, 2010
Nov 8, 2010
Amendments received before examination
Search/Exam
Oct 27, 2010
Oct 6, 2010
Refund of fees
Search/Exam
Sep 28, 2010
Aug 17, 2010
(Electronic) Receipt
Search/Exam
Aug 17, 2010
Aug 17, 2010
Amended claims with annotations
Search/Exam
Aug 17, 2010
Amendments received before examination
Search/Exam
Aug 17, 2010
Letter concerning the inventor
Search/Exam
Aug 17, 2010
Request for entry into the European phase
Search/Exam
Aug 4, 2010
May 28, 2010
Information on entry into European phase
Search/Exam
Nov 18, 2009
Notification of the recording of a change
Search/Exam
Aug 11, 2009
Jul 23, 2009
Copy of the international search report
Search/Exam
Jul 23, 2009
Published international application - A1
Search/Exam
Apr 9, 2009
Apr 9, 2009
Apr 9, 2009
Feb 5, 2009
Abstract
PCTISA
Feb 5, 2009
Claims
PCTISA
Feb 5, 2009
Description
PCTISA