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The patent EP3139904 was granted to Basf on Mar 3, 2021. The application was filed on May 5, 2015 under application number EP15719484A. 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 | Dec 3, 2021 | 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 | WO2007045488 |
| INTERNATIONAL-SEARCH-REPORT | WO2009095240 |
| INTERNATIONAL-SEARCH-REPORT | WO2013053793 |
| INTERNATIONAL-SEARCH-REPORT | WO2013153220 |
| OPPOSITION | EP0835613 |
| OPPOSITION | EP0982038 |
| OPPOSITION | EP1106174 |
| OPPOSITION | EP1153548 |
| OPPOSITION | EP1410721 |
| OPPOSITION | EP1484055 |
| OPPOSITION | WO2005056023 |
| OPPOSITION | WO2007042153 |
| OPPOSITION | WO2009095240 |
| OPPOSITION | WO2011152810 |
| OPPOSITION | WO2015169816 |
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 19, 2025
Dec 18, 2025
(Electronic) Receipt
Appeal
Dec 18, 2025
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Dec 3, 2025
Dec 2, 2025
(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Dec 13, 2024
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(Electronic) Receipt
Appeal
Sep 23, 2024
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Reply to appeal
Appeal
Sep 18, 2024
Sep 12, 2024
(Electronic) Receipt
Appeal
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May 23, 2024
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(Electronic) Receipt
Appeal
May 15, 2024
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May 14, 2024
(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Apr 18, 2024
Authorisation
Appeal
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Mar 15, 2024
(Electronic) Receipt
Appeal
Mar 15, 2024
Mar 15, 2024
Notice of appeal
Appeal
Jan 24, 2024
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Means of redress
OPPO
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Mar 24, 2021
Refund of fees
Search/Exam
Mar 15, 2021
Feb 4, 2021
Decision to grant a European patent
Search/Exam
Jan 25, 2021
(Electronic) Receipt
Search/Exam
Jan 25, 2021
Filing of the translations of the claims
Search/Exam
Jan 25, 2021
French translation of claims
Search/Exam
Jan 25, 2021
German translation of the claims
Search/Exam
Jan 25, 2021
Letter accompanying subsequently filed items
Search/Exam
Sep 15, 2020
Sep 15, 2020
Sep 15, 2020
Intention to grant (signatures)
Search/Exam
Sep 15, 2020
Text intended for grant (clean copy)
Search/Exam
Sep 15, 2020
Feb 28, 2020
(Electronic) Receipt
Search/Exam
Feb 28, 2020
Amended claims with annotations
Search/Exam
Feb 28, 2020
Amended description with annotations
Search/Exam
Feb 28, 2020
Claims
Search/Exam
Feb 28, 2020
Description
Search/Exam
Feb 28, 2020
Letter accompanying subsequently filed items
Search/Exam
Feb 28, 2020
Nov 4, 2019
Annex to the communication
Search/Exam
Nov 4, 2019
Communication from the Examining Division
Search/Exam
Oct 24, 2019
Examination started
Search/Exam
May 28, 2018
May 17, 2018
Jul 5, 2017
Jul 3, 2017
(Electronic) Receipt
Search/Exam
Jul 3, 2017
Jul 3, 2017
Amended claims with annotations
Search/Exam
Jul 3, 2017
Amendments received before examination
Search/Exam
Jul 3, 2017
Letter accompanying subsequently filed items
Search/Exam
Jun 30, 2017
Feb 15, 2017
Jan 31, 2017
Jan 16, 2017
Letter which had not been notified
Search/Exam
Dec 23, 2016
Dec 21, 2016
Communication to designated inventor
Search/Exam
Dec 21, 2016
Communication to designated inventor
Search/Exam
Dec 21, 2016
Communication to designated inventor
Search/Exam
Dec 5, 2016
(Electronic) Receipt
Search/Exam
Dec 5, 2016
Request for entry into the European phase
Search/Exam
Nov 21, 2016
Sep 16, 2016
Information on entry into European phase
Search/Exam
Mar 3, 2016
CDS Clean up - amended applicant details
Search/Exam
Mar 3, 2016
Dec 1, 2015
Nov 12, 2015
Copy of the international search report
Search/Exam
Nov 12, 2015
Published international application - A1
Search/Exam
Jun 10, 2015
Jun 10, 2015
Jun 10, 2015
May 5, 2015
(Electronic) Receipt
PCTRO
May 5, 2015
Abstract
PCTRO
May 5, 2015
Claims
PCTRO
May 5, 2015
Description
PCTRO
May 5, 2015