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The patent EP3801459 was granted to Arena Pharmaceuticals on Aug 7, 2024. The application was filed on Jun 5, 2019 under application number EP19739424A. 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 |
|---|---|---|---|
| MAIWALD | May 7, 2025 | MAIWALD | ADMISSIBLE |
| SYNTHON | May 7, 2025 | HAMM & WITTKOPP | ADMISSIBLE |
| TEVA PHARMACEUTICALS | May 7, 2025 | VON KAUFFMANN | ADMISSIBLE |
| SANDOZ | May 6, 2025 | 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 | WO2010011316 |
| DESCRIPTION | WO2011094008 |
| INTERNATIONAL-SEARCH-REPORT | WO2016112075 |
| INTERNATIONAL-SEARCH-REPORT | WO2018151834 |
| INTERNATIONAL-SEARCH-REPORT | WO2018151873 |
| OPPOSITION | WO2010011316 |
| OPPOSITION | WO2011094008 |
| OPPOSITION | WO2016112075 |
| OPPOSITION | WO2016209809 |
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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Decision to grant a European patent
Search/Exam
May 3, 2024
(Electronic) Receipt
Search/Exam
May 3, 2024
German translation of the claims
Search/Exam
May 3, 2024
Letter accompanying subsequently filed items
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Apr 24, 2024
(Electronic) Receipt
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Apr 24, 2024
Filing of the translations of the claims
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Apr 24, 2024
French translation of claims
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Apr 24, 2024
Translation of the claims
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Jan 24, 2024
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Intention to grant (signatures)
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Jan 24, 2024
Text intended for grant (clean copy)
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Jan 24, 2024
Dec 21, 2023
(Electronic) Receipt
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Dec 21, 2023
Claims
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Dec 21, 2023
Description
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Summary of subsequently filed documents
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Intention to grant (signatures)
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Oct 23, 2023
Text intended for grant (clean copy)
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(Electronic) Receipt
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Apr 12, 2023
Amended description with annotations
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Apr 12, 2023
Description
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Apr 12, 2023
Letter accompanying subsequently filed items
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Mar 16, 2023
Annex to the communication
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Mar 16, 2023
Communication from the Examining Division
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Examination started
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Mar 2, 2023
Letter accompanying subsequently filed items
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(Electronic) Receipt
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Jan 23, 2023
Letter accompanying subsequently filed items
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Jan 23, 2023
Aug 31, 2022
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Letter accompanying subsequently filed items
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Aug 25, 2022
Jul 27, 2021
(Electronic) Receipt
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Jul 27, 2021
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Amended claims with annotations
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Jul 27, 2021
Amendments received before examination
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Jul 27, 2021
Letter accompanying subsequently filed items
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Mar 17, 2021
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Letter which had not been notified
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Jan 19, 2021
Jan 15, 2021
Communication to designated inventor
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Jan 15, 2021
Communication to designated inventor
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Dec 21, 2020
Dec 8, 2020
(Electronic) Receipt
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Dec 8, 2020
Request for entry into the European phase
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Oct 16, 2020
Information on entry into European phase
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Jan 3, 2020
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Dec 12, 2019
Copy of the international search report
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Dec 12, 2019
Published international application - A1
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Oct 30, 2019
ISR: cited documents
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Annex
PCTISA
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Abstract
PCTISA
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Annex
PCTISA
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Annex
PCTISA
Jul 11, 2019
Claims
PCTISA
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Description
PCTISA
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