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The patent EP3681500 was granted to Allergan on Jul 30, 2025. The application was filed on Apr 24, 2019 under application number EP19729883A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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| TEVA PHARMACEUTICALS | Dec 20, 2022 | KRAUS & LEDERER PARTGMBB | WITHDRAWN |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
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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Payment submission rejected
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Feb 24, 2022
Decision to grant a European patent
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Feb 10, 2022
(Electronic) Receipt
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Feb 10, 2022
Filing of the translations of the claims
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Feb 10, 2022
French translation of claims
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Feb 10, 2022
German translation of the claims
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Feb 10, 2022
Letter accompanying subsequently filed items
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Intention to grant (signatures)
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Text intended for grant (clean copy)
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Sep 17, 2021
Consultation by telephone/in person
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(Electronic) Receipt
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Amended description with annotations
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Description
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Sep 10, 2021
Letter accompanying subsequently filed items
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Sep 10, 2021
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(Electronic) Receipt
Search/Exam
Aug 13, 2021
Amended claims with annotations
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Aug 13, 2021
Claims
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Letter accompanying subsequently filed items
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Annex to the communication
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Summons to attend oral proceedings
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(Electronic) Receipt
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Jan 12, 2021
Amended claims with annotations
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Claims
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Letter accompanying subsequently filed items
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Annex to the communication
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Sep 4, 2020
Communication from the Examining Division
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Aug 19, 2020
Examination started
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Letter which had not been notified
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Letter which had not been notified
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Apr 16, 2020
(Electronic) Receipt
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Apr 16, 2020
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Request for entry into the European phase
Search/Exam
Jan 23, 2020
Copy of the international search report
Search/Exam
Jan 23, 2020
Dec 19, 2019
ISR: cited documents
PCTISA
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Published international application - A2
Search/Exam
Oct 10, 2019
(Electronic) Receipt
PCTISA
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Abstract
PCTISA
Jun 11, 2019
Annex
PCTISA
Jun 11, 2019
Claims
PCTISA
Jun 11, 2019
Description
PCTISA
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PCTISA
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