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The patent EP2815752 was granted to Taiho Pharmaceutical on May 20, 2020. The application was filed on Feb 14, 2013 under application number EP13749905A. 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 |
|---|---|---|---|
| TEVA PHARMACEUTICALS | Feb 19, 2021 | LEDERER & KELLER PATENTANWALTE PARTNERSCHAFT MBB | WITHDRAWN |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | WO2006080327 |
| DESCRIPTION | WO9630346 |
| INTERNATIONAL-SEARCH-REPORT | JP2001131075 |
| INTERNATIONAL-SEARCH-REPORT | JP2005112744 |
| INTERNATIONAL-SEARCH-REPORT | JP2005314413 |
| INTERNATIONAL-SEARCH-REPORT | JP2007284390 |
| INTERNATIONAL-SEARCH-REPORT | JPH11322604 |
| INTERNATIONAL-SEARCH-REPORT | WO2006080327 |
| INTERNATIONAL-SEARCH-REPORT | WO9630346 |
| OPPOSITION | EP1230925 |
| OPPOSITION | EP2815752 |
| SEARCH | EP0763529 |
| SEARCH | EP1230925 |
| SEARCH | EP1849470 |
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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Oct 14, 2021
Oct 8, 2021
Letter accompanying subsequently filed items
Search/Exam
Oct 8, 2021
Oct 8, 2021
Request for a change of address - opponent
Search/Exam
Oct 8, 2021
Sep 20, 2021
Sep 14, 2021
Sep 14, 2021
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Jun 2, 2020
Apr 23, 2020
Decision to grant a European patent
Search/Exam
Feb 28, 2020
Change to the inventor details
Search/Exam
Feb 19, 2020
(Electronic) Receipt
Search/Exam
Feb 19, 2020
Filing of the translations of the claims
Search/Exam
Feb 19, 2020
French translation of claims
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Feb 19, 2020
German translation of the claims
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Feb 19, 2020
Letter accompanying subsequently filed items
Search/Exam
Oct 31, 2019
Oct 31, 2019
Oct 31, 2019
Intention to grant (signatures)
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Oct 31, 2019
Text intended for grant (clean copy)
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Oct 31, 2019
Oct 2, 2018
(Electronic) Receipt
Search/Exam
Oct 2, 2018
Amended claims with annotations
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Oct 2, 2018
Amended description with annotations
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Oct 2, 2018
Claims
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Oct 2, 2018
Description
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Oct 2, 2018
Letter accompanying subsequently filed items
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Oct 2, 2018
Aug 3, 2018
Annex to the communication
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Aug 3, 2018
Communication from the Examining Division
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Jul 31, 2018
Annex to the communication
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Jul 31, 2018
Consultation by telephone/in person
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Jul 31, 2018
Jul 27, 2018
Examination started
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Apr 16, 2018
Jan 18, 2016
(Electronic) Receipt
Search/Exam
Jan 18, 2016
Jan 18, 2016
Amended claims with annotations
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Jan 18, 2016
Amendments received before examination
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Jan 18, 2016
Letter accompanying subsequently filed items
Search/Exam
Jul 17, 2015
Jun 30, 2015
Jun 30, 2015
European search opinion
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Jun 30, 2015
Supplementary European search report
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Jun 10, 2015
Search started
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Nov 26, 2014
Notification of forthcoming publication
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Sep 23, 2014
Sep 19, 2014
Communication to designated inventor
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Sep 19, 2014
Communication to designated inventor
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Sep 2, 2014
Sep 2, 2014
Jul 4, 2014
(Electronic) Receipt
Search/Exam
Jul 4, 2014
Abstract
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Jul 4, 2014
Claims
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Jul 4, 2014
Description
Search/Exam
Jul 4, 2014
Request for entry into the European phase
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Jun 27, 2014
Information on entry into European phase
Search/Exam
Sep 11, 2013
Aug 22, 2013
Copy of the international search report
Search/Exam
Aug 22, 2013
Aug 22, 2013
International publication pamphlet
Search/Exam