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The patent EP2667856 was granted to Otsuka Pharmaceutical on Dec 1, 2021. The application was filed on Jan 17, 2012 under application number EP12703898A. 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 |
|---|---|---|---|
| HAMM & WITTKOPP | Apr 27, 2022 | HAMM & WITTKOPP | ADMISSIBLE |
| MAIWALD | Apr 27, 2022 | MAIWALD | ADMISSIBLE |
| POLPHARMA | Apr 27, 2022 | ELKINGTON AND FIFE | ADMISSIBLE |
| INSTONE TERRY READ HOWARD GRAHAMAPPLEYARD LEES | Apr 21, 2022 | APPLEYARD LEES | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JP2007200088 |
| DESCRIPTION | JP2007509148 |
| DESCRIPTION | JP2007509153 |
| DESCRIPTION | JPH08112333 |
| DESCRIPTION | US5006528 |
| DESCRIPTION | WO2005041937 |
| DESCRIPTION | WO2005041970 |
| INTERNATIONAL-SEARCH-REPORT | EP0962229 |
| INTERNATIONAL-SEARCH-REPORT | JPH08112333 |
| INTERNATIONAL-SEARCH-REPORT | US2005152981 |
| INTERNATIONAL-SEARCH-REPORT | US2007148100 |
| INTERNATIONAL-SEARCH-REPORT | WO2005041937 |
| INTERNATIONAL-SEARCH-REPORT | WO2009017250 |
| OPPOSITION | EP0962229 |
| OPPOSITION | JPH0630974 |
| OPPOSITION | JPH08112333 |
| OPPOSITION | US2004138611 |
| OPPOSITION | US2005152981 |
| OPPOSITION | US5290228 |
| OPPOSITION | US5788670 |
| OPPOSITION | US5971953 |
| OPPOSITION | WO2005041937 |
| OPPOSITION | WO2007035348 |
| OPPOSITION | WO2009017250 |
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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Description
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Notice of appeal
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(Electronic) Receipt
Search/Exam
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Amended description with annotations
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Description
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Oct 26, 2021
Letter accompanying subsequently filed items
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Oct 26, 2021
Request for correction of the publication
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Oct 26, 2021
Request for correction of the publication
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Aug 10, 2021
Jul 1, 2021
Decision to grant a European patent
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Jun 18, 2021
(Electronic) Receipt
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Jun 18, 2021
Filing of the translations of the claims
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Jun 18, 2021
French translation of claims
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German translation of the claims
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Jun 18, 2021
Letter accompanying subsequently filed items
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Feb 11, 2021
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Intention to grant (signatures)
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Text intended for grant (clean copy)
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Feb 11, 2021
Nov 6, 2019
Description
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Nov 6, 2019
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Annex to the communication
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May 6, 2019
Communication from the Examining Division
Search/Exam
Dec 6, 2017
Claims
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Dec 6, 2017
Description
Search/Exam
Dec 6, 2017
Jul 27, 2017
Annex to the communication
Search/Exam
Jul 27, 2017
Communication from the Examining Division
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Sep 9, 2016
Jul 5, 2016
Annex to the communication
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Jul 5, 2016
Communication from the Examining Division
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Nov 9, 2015
Letter which had not been notified
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Nov 5, 2015
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Sep 26, 2014
Submission concerning representation
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Amendments received before examination
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Feb 26, 2014
Payment of fees and costs
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Nov 6, 2013
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Aug 28, 2013
Communication to designated inventor
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Aug 28, 2013
Communication to designated inventor
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Jul 23, 2013
(Electronic) Receipt
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Jul 23, 2013
Request for entry into the European phase
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Jun 7, 2013
Information on entry into European phase
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Aug 21, 2012
Aug 2, 2012
Copy of the international search report
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Aug 2, 2012
Published international application - A1
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May 24, 2012
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Feb 6, 2012
Abstract
PCTISA
Feb 6, 2012
Claims
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Feb 6, 2012
Description
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Feb 6, 2012
Drawings
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