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The patent EP3728313 was granted to Debiopharm on Oct 25, 2023. The application was filed on Dec 21, 2018 under application number EP18829861A. 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 | Apr 30, 2024 | ELKINGTON AND FIFE | ADMISSIBLE |
| KRAUS & LEDERER PARTGMBB | Apr 30, 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 |
|---|---|
| DESCRIPTION | WO2016054555 |
| DESCRIPTION | WO2017143449 |
| DESCRIPTION | WO2018195321 |
| OPPOSITION | WO2016009017 |
| OPPOSITION | WO2016054555 |
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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Nov 10, 2025
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Means of redress
OPPO
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(Electronic) Receipt
Search/Exam
Sep 11, 2023
Letter accompanying subsequently filed items
Search/Exam
Sep 11, 2023
Request for correction
Search/Exam
Aug 16, 2023
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Decision to grant a European patent
Search/Exam
Jun 27, 2023
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(Electronic) Receipt
Search/Exam
Jun 9, 2023
Filing of the translations of the claims
Search/Exam
Jun 9, 2023
French translation of claims
Search/Exam
Jun 9, 2023
German translation of the claims
Search/Exam
Jun 9, 2023
Letter accompanying subsequently filed items
Search/Exam
Jan 31, 2023
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Intention to grant (signatures)
Search/Exam
Jan 31, 2023
Text intended for grant (clean copy)
Search/Exam
Jan 31, 2023
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(Electronic) Receipt
Search/Exam
Jan 13, 2023
Enquiry as to the processing of the file
Search/Exam
Jan 13, 2023
Letter accompanying subsequently filed items
Search/Exam
Jul 29, 2022
(Electronic) Receipt
Search/Exam
Jul 29, 2022
Amended description with annotations
Search/Exam
Jul 29, 2022
Description
Search/Exam
Jul 29, 2022
Letter accompanying subsequently filed items
Search/Exam
Jul 29, 2022
Apr 28, 2022
Annex to the communication
Search/Exam
Apr 28, 2022
Communication from the Examining Division
Search/Exam
Apr 22, 2022
Examination started
Search/Exam
Feb 8, 2021
(Electronic) Receipt
Search/Exam
Feb 8, 2021
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Amended claims with annotations
Search/Exam
Feb 8, 2021
Amendments received before examination
Search/Exam
Feb 8, 2021
Annex
Search/Exam
Feb 8, 2021
Letter accompanying subsequently filed items
Search/Exam
Feb 1, 2021
Oct 30, 2020
(Electronic) Receipt
Search/Exam
Oct 30, 2020
Request for correction of client data
Search/Exam
Sep 30, 2020
Jul 28, 2020
Jul 24, 2020
Communication to designated inventor
Search/Exam
Jul 24, 2020
Communication to designated inventor
Search/Exam
Jul 24, 2020
Communication to designated inventor
Search/Exam
Jul 24, 2020
Communication to designated inventor
Search/Exam
Jul 21, 2020
Priority search results copy provided by EPO
Search/Exam
Jul 17, 2020
(Electronic) Receipt
Search/Exam
Jul 17, 2020
Request for entry into the European phase
Search/Exam
Jul 6, 2020
May 4, 2020
Information on entry into European phase
Search/Exam
Jul 19, 2019
Jul 17, 2019
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Notification of the recording of a change
Search/Exam
Jun 27, 2019
Copy of the international search report
Search/Exam
Jun 27, 2019
Published international application - A1
Search/Exam
Feb 22, 2019
ISR: cited documents
PCTISA
Feb 21, 2019
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Dec 21, 2018
(Electronic) Receipt
PCTRO
Dec 21, 2018
Abstract
PCTRO
Dec 21, 2018
Claims
PCTRO
Dec 21, 2018
Description
PCTRO
Dec 21, 2018
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Drawings
PCTRO
Dec 21, 2018