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The patent EP3650016 was granted to Eirgen Pharma on May 5, 2021. The application was filed on Mar 14, 2014 under application number EP19217651A. 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 |
|---|---|---|---|
| DSM NUTRITIONAL PRODUCTS | Feb 7, 2022 | 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 | US20080109983 |
| DESCRIPTION | WO2007US61521 |
| DESCRIPTION | WO2008US61579 |
| DESCRIPTION | US6645527 |
| OPPOSITION | DE19536387 |
| OPPOSITION | DE2224534 |
| OPPOSITION | EP0116755 |
| OPPOSITION | EP0157695 |
| OPPOSITION | EP0413828 |
| OPPOSITION | EP0548448 |
| OPPOSITION | EP0631781 |
| OPPOSITION | EP2478909 |
| OPPOSITION | JP2893140B |
| OPPOSITION | KR100844256B |
| OPPOSITION | WO0006126 |
| OPPOSITION | WO03007916 |
| OPPOSITION | WO03059358 |
| OPPOSITION | WO03086321 |
| OPPOSITION | WO2004098507 |
| OPPOSITION | WO2005087194 |
| OPPOSITION | WO2006018119 |
| OPPOSITION | WO2006072940 |
| OPPOSITION | WO2006094782 |
| OPPOSITION | WO2007092755 |
| OPPOSITION | WO2008008608 |
| OPPOSITION | WO2008074144 |
| OPPOSITION | WO2008134512 |
| OPPOSITION | WO2009101131 |
| OPPOSITION | WO2009101132 |
| OPPOSITION | WO2009101135 |
| OPPOSITION | WO2010008976 |
| OPPOSITION | WO2011048144 |
| OPPOSITION | WO2012163836 |
| OPPOSITION | WO9116899 |
| OPPOSITION | WO9209271 |
| OPPOSITION | WO9901111 |
| SEARCH | WO2008134512 |
| SEARCH | WO2012145491 |
| SEARCH | WO9600074 |
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 16, 2025
Dec 16, 2025
Dec 8, 2025
Dec 4, 2025
(Electronic) Receipt
Appeal
Dec 4, 2025
Dec 4, 2025
Request for correction
Appeal
Nov 27, 2025
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Dec 23, 2024
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(Electronic) Receipt
Appeal
Oct 30, 2024
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(Electronic) Receipt
Appeal
Aug 9, 2024
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Reply to appeal
Appeal
Apr 10, 2024
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Notice of appeal
Appeal
Jan 15, 2024
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Letter accompanying subsequently filed items
Search/Exam
Dec 12, 2023
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Means of redress
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May 19, 2021
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Decision to grant a European patent
Search/Exam
Feb 16, 2021
Feb 11, 2021
Feb 5, 2021
(Electronic) Receipt
Search/Exam
Feb 5, 2021
Annexes in respect of a client data request
Search/Exam
Feb 5, 2021
Letter accompanying subsequently filed items
Search/Exam
Feb 5, 2021
Feb 4, 2021
(Electronic) Receipt
Search/Exam
Feb 4, 2021
Filing of the translations of the claims
Search/Exam
Feb 4, 2021
French translation of claims
Search/Exam
Feb 4, 2021
German translation of the claims
Search/Exam
Feb 4, 2021
Letter accompanying subsequently filed items
Search/Exam
Jan 22, 2021
(Electronic) Receipt
Search/Exam
Jan 22, 2021
Letter accompanying subsequently filed items
Search/Exam
Jan 22, 2021
Nov 13, 2020
Change to the inventor details
Search/Exam
Nov 6, 2020
(Electronic) Receipt
Search/Exam
Nov 6, 2020
Letter concerning the inventor
Search/Exam
Sep 24, 2020
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Intention to grant (signatures)
Search/Exam
Sep 24, 2020
Text intended for grant (clean copy)
Search/Exam
Sep 24, 2020
Aug 19, 2020
Examination started
Search/Exam
Aug 11, 2020
Aug 3, 2020
(Electronic) Receipt
Search/Exam
Aug 3, 2020
Jun 30, 2020
(Electronic) Receipt
Search/Exam
Jun 30, 2020
Letter accompanying subsequently filed items
Search/Exam
Jun 29, 2020
(Electronic) Receipt
Search/Exam
Jun 29, 2020
Letter accompanying subsequently filed items
Search/Exam
Jun 29, 2020
Written request for examination
Search/Exam
May 18, 2020
Apr 16, 2020
Notification of forthcoming publication
Search/Exam
Mar 31, 2020
Refund of fees
Search/Exam
Mar 25, 2020
Mar 25, 2020
European search opinion
Search/Exam
Mar 25, 2020
European search report
Search/Exam
Mar 25, 2020
Information on Search Strategy
Search/Exam
Mar 16, 2020
Search started
Search/Exam
Feb 10, 2020
Communication to designated inventor
Search/Exam
Feb 10, 2020
Communication to designated inventor
Search/Exam
Feb 10, 2020
Communication to designated inventor
Search/Exam
Feb 10, 2020
Communication to designated inventor
Search/Exam
Jan 14, 2020
Refund of fees
Search/Exam
Dec 18, 2019
Abstract
Search/Exam
Dec 18, 2019
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Claims
Search/Exam
Dec 18, 2019
Description
Search/Exam
Dec 18, 2019
Designation of inventor
Search/Exam
Dec 18, 2019
Drawings
Search/Exam
Dec 18, 2019
Matter concerning the application
Search/Exam
Dec 18, 2019
Request for grant of a European patent
Search/Exam
Oct 7, 2014