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The patent EP3266456 was granted to Ipsen Biopharm on May 5, 2021. The application was filed on Jun 12, 2013 under application number EP17169098A. 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 |
|---|---|---|---|
| GENERICS UK | Feb 4, 2022 | ELKINGTON AND FIFE | ADMISSIBLE |
| TEVA PHARMACEUTICALS | Feb 2, 2022 | D YOUNG | ADMISSIBLE |
| SANDOZ | Feb 1, 2022 | KRAUS & LEDERER PARTGMBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US8147867 |
| EXAMINATION | WO2012146610 |
| EXAMINATION | WO2013138371 |
| OPPOSITION | EP2861210 |
| OPPOSITION | WO2012146610 |
| OPPOSITION | WO2013138371 |
| SEARCH | WO2012146610 |
| SEARCH | WO2013138371 |
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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Dec 23, 2025
Dec 18, 2025
(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Oct 31, 2025
(Electronic) Receipt
Appeal
Oct 31, 2025
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Oct 30, 2025
(Electronic) Receipt
Appeal
Oct 30, 2025
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Oct 28, 2025
(Electronic) Receipt
Appeal
Oct 28, 2025
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Jul 18, 2024
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Reply to appeal
Appeal
Jul 17, 2024
(Electronic) Receipt
Appeal
Jul 17, 2024
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Reply to appeal
Appeal
May 17, 2024
May 6, 2024
Apr 29, 2024
(Electronic) Receipt
Appeal
Apr 29, 2024
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Reply to appeal
Appeal
Mar 20, 2024
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Jan 16, 2024
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Notice of appeal
Appeal
Dec 12, 2023
Letter accompanying subsequently filed items
Search/Exam
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May 19, 2021
Apr 9, 2021
Decision to grant a European patent
Search/Exam
Mar 26, 2021
(Electronic) Receipt
Search/Exam
Mar 26, 2021
Filing of the translations of the claims
Search/Exam
Mar 26, 2021
French translation of claims
Search/Exam
Mar 26, 2021
German translation of the claims
Search/Exam
Mar 26, 2021
Letter accompanying subsequently filed items
Search/Exam
Feb 26, 2021
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Feb 26, 2021
Intention to grant (signatures)
Search/Exam
Feb 26, 2021
Text intended for grant (clean copy)
Search/Exam
Feb 26, 2021
Sep 24, 2020
Decision to allow further processing
Search/Exam
Sep 10, 2020
(Electronic) Receipt
Search/Exam
Sep 10, 2020
Amended claims with annotations
Search/Exam
Sep 10, 2020
Amended description with annotations
Search/Exam
Sep 10, 2020
Citation for the examination procedure
Search/Exam
Sep 10, 2020
Citation for the examination procedure
Search/Exam
Sep 10, 2020
Claims
Search/Exam
Sep 10, 2020
Description
Search/Exam
Sep 10, 2020
Letter accompanying subsequently filed items
Search/Exam
Sep 10, 2020
Sep 10, 2020
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Sep 10, 2020
Request for further processing
Search/Exam
Jun 30, 2020
Feb 10, 2020
Feb 3, 2020
(Electronic) Receipt
Search/Exam
Feb 3, 2020
Nov 25, 2019
Annex to the communication
Search/Exam
Nov 25, 2019
Communication from the Examining Division
Search/Exam
Nov 15, 2019
Examination started
Search/Exam
Nov 13, 2018
Decision to allow further processing
Search/Exam
Oct 30, 2018
(Electronic) Receipt
Search/Exam
Oct 30, 2018
Oct 30, 2018
Amended claims with annotations
Search/Exam
Oct 30, 2018
Letter accompanying subsequently filed items
Search/Exam
Oct 30, 2018
Request for further processing
Search/Exam
Aug 23, 2018
Jan 15, 2018
Dec 13, 2017
Notification of forthcoming publication
Search/Exam
Dec 6, 2017
Refund of fees
Search/Exam
Nov 27, 2017
Nov 27, 2017
European search opinion
Search/Exam
Nov 27, 2017
European search report
Search/Exam
Nov 27, 2017
Information on Search Strategy
Search/Exam
Nov 6, 2017
Oct 16, 2017
(Electronic) Receipt
Search/Exam
Oct 16, 2017
Annexes in respect of a client data request
Search/Exam
Oct 16, 2017
Letter accompanying subsequently filed items
Search/Exam
Oct 16, 2017
Aug 8, 2017
(Electronic) Receipt
Search/Exam
Aug 8, 2017
Claims
Search/Exam
Aug 8, 2017
Letter accompanying subsequently filed items
Search/Exam
Aug 8, 2017
Matter concerning the application
Search/Exam
Jun 23, 2017
Communication to designated inventor
Search/Exam
Jun 23, 2017
Communication to designated inventor
Search/Exam
Jun 23, 2017
Communication to designated inventor
Search/Exam
Jun 23, 2017
Communication to designated inventor
Search/Exam
Jun 23, 2017
Communication to designated inventor
Search/Exam
Jun 23, 2017
Communication to designated inventor
Search/Exam
Jun 23, 2017
Communication to designated inventor
Search/Exam
May 29, 2017
Invitation to file claims
Search/Exam
May 2, 2017
Abstract
Search/Exam
May 2, 2017
May 2, 2017
Annex
Search/Exam
May 2, 2017
Description
Search/Exam
May 2, 2017
Designation of inventor
Search/Exam
May 2, 2017
Drawings
Search/Exam
May 2, 2017
Request for grant of a European patent
Search/Exam
Jan 7, 2014
Jan 7, 2014