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The patent EP3242666 was granted to Arena Pharmaceuticals on Dec 25, 2024. The application was filed on Jan 6, 2016 under application number EP16700936A. 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 | Jul 16, 2025 | VON KAUFFMANN | ADMISSIBLE |
| MAIWALD | Jul 15, 2025 | SELWITSCHKA | ADMISSIBLE |
| SANDOZ | Jul 15, 2025 | KRAUS & LEDERER PARTGMBB | ADMISSIBLE |
| SYNTHON | Jul 15, 2025 | HAMM & WITTKOPP | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | WO2010011316 |
| DESCRIPTION | WO2011094008 |
| INTERNATIONAL-SEARCH-REPORT | WO2009115954 |
| INTERNATIONAL-SEARCH-REPORT | WO2010011316 |
| INTERNATIONAL-SEARCH-REPORT | WO2010072703 |
| INTERNATIONAL-SEARCH-REPORT | WO2010075239 |
| INTERNATIONAL-SEARCH-REPORT | WO2011094008 |
| OPPOSITION | EP2291080 |
| OPPOSITION | US11007175 |
| OPPOSITION | WO2009115954 |
| OPPOSITION | WO2010011316 |
| OPPOSITION | WO2010072703 |
| OPPOSITION | WO2010075239 |
| OPPOSITION | WO2011094008 |
| OPPOSITION | WO2014161606 |
| OPPOSITION | WO2016112075 |
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 1, 2025
Dec 1, 2025
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Complaint
OPPO
Nov 14, 2025
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Jul 15, 2025
Nov 21, 2024
Nov 14, 2024
(Electronic) Receipt
Search/Exam
Nov 14, 2024
Letter accompanying subsequently filed items
Search/Exam
Nov 14, 2024
Request for correction of the publication
Search/Exam
Oct 29, 2024
Sep 19, 2024
Decision to grant a European patent
Search/Exam
Sep 5, 2024
(Electronic) Receipt
Search/Exam
Sep 5, 2024
Filing of the translations of the claims
Search/Exam
Sep 5, 2024
French translation of claims
Search/Exam
Sep 5, 2024
German translation of the claims
Search/Exam
Aug 29, 2024
Aug 29, 2024
Aug 29, 2024
Aug 29, 2024
Intention to grant (signatures)
Search/Exam
Aug 29, 2024
Text intended for grant (clean copy)
Search/Exam
Aug 29, 2024
Jul 29, 2024
(Electronic) Receipt
Search/Exam
Jul 29, 2024
Claims
Search/Exam
Jul 29, 2024
Jul 29, 2024
Summary of subsequently filed documents
Search/Exam
Jul 4, 2024
Jul 4, 2024
Jul 4, 2024
Jul 4, 2024
Intention to grant (signatures)
Search/Exam
Jul 4, 2024
Text intended for grant (clean copy)
Search/Exam
Jul 4, 2024
Jun 20, 2024
(Electronic) Receipt
Search/Exam
Jun 20, 2024
Claims
Search/Exam
Jun 20, 2024
Jun 20, 2024
Summary of subsequently filed documents
Search/Exam
Apr 24, 2024
Apr 24, 2024
Apr 24, 2024
Apr 24, 2024
Intention to grant (signatures)
Search/Exam
Apr 24, 2024
Text intended for grant (clean copy)
Search/Exam
Apr 24, 2024
Mar 9, 2023
Mar 2, 2023
Letter accompanying subsequently filed items
Search/Exam
Mar 2, 2023
Mar 2, 2023
Jan 27, 2023
Jan 27, 2023
Jan 27, 2023
Jan 23, 2023
(Electronic) Receipt
Search/Exam
Jan 23, 2023
Letter accompanying subsequently filed items
Search/Exam
Jan 23, 2023
Aug 31, 2022
Aug 25, 2022
(Electronic) Receipt
Search/Exam
Aug 25, 2022
Letter accompanying subsequently filed items
Search/Exam
Aug 25, 2022
Aug 15, 2022
(Electronic) Receipt
Search/Exam
Aug 15, 2022
Amended claims with annotations
Search/Exam
Aug 15, 2022
Claims
Search/Exam
Aug 15, 2022
Letter accompanying subsequently filed items
Search/Exam
Aug 15, 2022
Apr 13, 2022
Annex to the communication
Search/Exam
Apr 13, 2022
Communication from the Examining Division
Search/Exam
Nov 24, 2020
(Electronic) Receipt
Search/Exam
Nov 24, 2020
Amended claims with annotations
Search/Exam
Nov 24, 2020
Annex
Search/Exam
Nov 24, 2020
Claims
Search/Exam
Nov 24, 2020
Letter accompanying subsequently filed items
Search/Exam
Nov 24, 2020
Jul 20, 2020
Annex to the communication
Search/Exam
Jul 20, 2020
Communication from the Examining Division
Search/Exam
Mar 19, 2020
Document concerning representation
Search/Exam
Nov 27, 2019
Decision to allow further processing
Search/Exam
Nov 20, 2019
(Electronic) Receipt
Search/Exam
Nov 20, 2019
Amended claims with annotations
Search/Exam
Nov 20, 2019
Claims
Search/Exam
Nov 20, 2019
Letter accompanying subsequently filed items
Search/Exam
Nov 20, 2019
Request for further processing
Search/Exam
Sep 12, 2019
May 21, 2019
May 15, 2019
(Electronic) Receipt
Search/Exam
May 15, 2019
Letter accompanying subsequently filed items
Search/Exam
May 15, 2019
Feb 5, 2019
Annex to the communication
Search/Exam
Feb 5, 2019
Communication from the Examining Division
Search/Exam
Jan 30, 2019
Examination started
Search/Exam
Dec 20, 2018
Dec 14, 2018
Dec 13, 2018
Feb 23, 2018
(Electronic) Receipt
Search/Exam
Feb 23, 2018
Letter accompanying subsequently filed items
Search/Exam
Feb 23, 2018
Matter concerning the application
Search/Exam
Oct 18, 2017
Aug 16, 2017
Aug 11, 2017
Communication to designated inventor
Search/Exam
Aug 11, 2017
Communication to designated inventor
Search/Exam
Aug 11, 2017
Communication to designated inventor
Search/Exam
Jul 25, 2017
(Electronic) Receipt
Search/Exam
Jul 25, 2017
Jul 25, 2017
Amended claims with annotations
Search/Exam
Jul 25, 2017
Request for entry into the European phase
Search/Exam
Jul 25, 2017
Submission concerning representation
Search/Exam
Jul 24, 2017
May 19, 2017
Information on entry into European phase
Search/Exam
Aug 1, 2016
Aug 1, 2016
Jul 14, 2016
Copy of the international search report
Search/Exam
Jul 14, 2016
Published international application - A1
Search/Exam
May 4, 2016
May 2, 2016
Apr 1, 2016
(Electronic) Receipt
PCTISA
Apr 1, 2016
Apr 1, 2016
Apr 1, 2016
Apr 1, 2016
Mar 18, 2016
ISR: cited documents
PCTISA
Mar 17, 2016
Annex
PCTISA
Mar 17, 2016
Mar 17, 2016
Mar 17, 2016
Mar 17, 2016
Mar 17, 2016
Mar 17, 2016
Feb 5, 2016
Jan 18, 2016
Abstract
PCTISA
Jan 18, 2016
Annex
PCTISA
Jan 18, 2016
Claims
PCTISA
Jan 18, 2016
Description
PCTISA
Jan 18, 2016
Drawings
PCTISA
Jan 18, 2016
Jan 18, 2016
Jan 18, 2016
Jan 18, 2016
Jan 18, 2016