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The patent EP3340971 was granted to Zogenix on Mar 13, 2024. The application was filed on Aug 24, 2016 under application number EP16840062A. 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 |
|---|---|---|---|
| KRAUS & LEDERER PARTGMBB | Nov 19, 2024 | KRAUS & LEDERER PARTGMBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | US2006270611 |
| INTERNATIONAL-SEARCH-REPORT | US2011092535 |
| INTERNATIONAL-SEARCH-REPORT | US2011212171 |
| INTERNATIONAL-SEARCH-REPORT | US2014343162 |
| INTERNATIONAL-SEARCH-REPORT | WO2014177676 |
| OPPOSITION | US2016092652 |
| OPPOSITION | WO2015026849 |
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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Aug 5, 2025
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Annexes in respect of a client data request
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May 8, 2025
Letter accompanying subsequently filed items
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May 8, 2025
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Mar 26, 2024
Feb 15, 2024
Decision to grant a European patent
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Feb 7, 2024
(Electronic) Receipt
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Feb 7, 2024
French translation of claims
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Feb 7, 2024
German translation of the claims
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Feb 7, 2024
Letter accompanying subsequently filed items
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Jan 31, 2024
Jan 25, 2024
(Electronic) Receipt
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Jan 25, 2024
Letter accompanying subsequently filed items
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Jan 25, 2024
Nov 20, 2023
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Nov 20, 2023
Intention to grant (signatures)
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Nov 20, 2023
Text intended for grant (clean copy)
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Nov 20, 2023
Jul 11, 2023
(Electronic) Receipt
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Jul 11, 2023
Amended claims with annotations
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Jul 11, 2023
Amended description with annotations
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Jul 11, 2023
Claims
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Jul 11, 2023
Description
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Jul 11, 2023
Letter accompanying subsequently filed items
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Jul 11, 2023
May 8, 2023
Annex to the communication
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May 8, 2023
Communication from the Examining Division
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Feb 15, 2023
(Electronic) Receipt
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Feb 15, 2023
Amended claims with annotations
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Feb 15, 2023
Claims
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Feb 15, 2023
Letter accompanying subsequently filed items
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Feb 15, 2023
Oct 25, 2022
Annex to the communication
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Oct 25, 2022
Communication from the Examining Division
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Oct 19, 2022
Oct 14, 2022
Examination started
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Oct 7, 2022
(Electronic) Receipt
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Oct 7, 2022
Letter accompanying subsequently filed items
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Oct 5, 2022
(Electronic) Receipt
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Oct 5, 2022
Enquiry as to the processing of the file
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Oct 5, 2022
Letter accompanying subsequently filed items
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Oct 28, 2019
(Electronic) Receipt
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Oct 28, 2019
Oct 28, 2019
Amended claims with annotations
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Oct 28, 2019
Amendments received before examination
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Oct 28, 2019
Letter accompanying subsequently filed items
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Oct 28, 2019
Aug 20, 2019
Jul 22, 2019
(Electronic) Receipt
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Jul 22, 2019
May 31, 2019
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May 21, 2019
(Electronic) Receipt
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May 21, 2019
Letter accompanying subsequently filed items
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May 21, 2019
Apr 16, 2019
Mar 29, 2019
Mar 29, 2019
European search opinion
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Mar 29, 2019
Information on Search Strategy
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Mar 29, 2019
Supplementary European search report
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Mar 8, 2019
Search started
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Jun 6, 2018
May 24, 2018
(Electronic) Receipt
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May 24, 2018
May 24, 2018
Amended claims with annotations
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May 24, 2018
Amendments received before examination
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May 24, 2018
Letter accompanying subsequently filed items
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Apr 3, 2018
Apr 3, 2018
Communication to designated inventor
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Apr 3, 2018
Communication to designated inventor
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Mar 12, 2018
Feb 1, 2018
(Electronic) Receipt
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Feb 1, 2018
Request for entry into the European phase
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Jan 5, 2018
Information on entry into European phase
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Mar 22, 2017
Mar 2, 2017
Copy of the international search report
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Mar 2, 2017
Published international application - A1
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