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The patent EP4033907 was granted to Unilever on Apr 19, 2023. The application was filed on Sep 1, 2020 under application number EP20761855A. 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 |
|---|---|---|---|
| COOPERATIE KONINKLIJKE AVEBE UA | Jan 19, 2024 | VO | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2015368293 |
| INTERNATIONAL-SEARCH-REPORT | EP3459365 |
| INTERNATIONAL-SEARCH-REPORT | US2008181990 |
| INTERNATIONAL-SEARCH-REPORT | WO2012089448 |
| INTERNATIONAL-SEARCH-REPORT | WO2014001030 |
| INTERNATIONAL-SEARCH-REPORT | WO2015169506 |
| INTERNATIONAL-SEARCH-REPORT | WO2018007508 |
| OPPOSITION | EP2227966 |
| OPPOSITION | WO2008069650 |
| OPPOSITION | WO2012089448 |
| OPPOSITION | WO2013067453 |
| OPPOSITION | WO2018007508 |
| OPPOSITION | WO9742834 |
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 4, 2025
Dec 4, 2025
Dec 1, 2025
(Electronic) Receipt
Appeal
Dec 1, 2025
Dec 1, 2025
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Reply to appeal
Appeal
Aug 26, 2025
Aug 6, 2025
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Jul 29, 2025
Jul 23, 2025
(Electronic) Receipt
Appeal
Jul 23, 2025
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Jun 2, 2025
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May 26, 2025
(Electronic) Receipt
Appeal
May 26, 2025
May 26, 2025
Notice of appeal
Appeal
Mar 27, 2025
Mar 27, 2025
Mar 27, 2025
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Means of redress
OPPO
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May 4, 2023
Mar 23, 2023
Decision to grant a European patent
Search/Exam
Mar 23, 2023
Mar 17, 2023
Observations by third parties
Search/Exam
Mar 10, 2023
(Electronic) Receipt
Search/Exam
Mar 10, 2023
Filing of the translations of the claims
Search/Exam
Mar 10, 2023
French translation of claims
Search/Exam
Mar 10, 2023
German translation of the claims
Search/Exam
Jan 9, 2023
Document concerning representation
Search/Exam
Jan 9, 2023
General authorisation
Search/Exam
Jan 9, 2023
Letter accompanying subsequently filed items
Search/Exam
Dec 8, 2022
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Intention to grant (signatures)
Search/Exam
Dec 8, 2022
Text intended for grant (clean copy)
Search/Exam
Dec 8, 2022
Oct 14, 2022
Examination started
Search/Exam
Jul 6, 2022
May 12, 2022
(Electronic) Receipt
Search/Exam
May 12, 2022
Letter accompanying subsequently filed items
Search/Exam
May 12, 2022
Letter concerning the inventor
Search/Exam
May 11, 2022
Deficiencies in designation of inventor
Search/Exam
Apr 26, 2022
Priority search results copy provided by EPO
Search/Exam
Apr 11, 2022
Feb 8, 2022
Information regarding early processing
Search/Exam
Feb 4, 2022
Information on entry into European phase
Search/Exam
Feb 1, 2022
(Electronic) Receipt
Search/Exam
Feb 1, 2022
Request for entry into the European phase
Search/Exam
Apr 19, 2021
Apr 1, 2021
Copy of the international search report
Search/Exam
Apr 1, 2021
Published international application - A1
Search/Exam
Jan 21, 2021
Dec 9, 2020
Dec 9, 2020
Nov 10, 2020
Sep 8, 2020
Sep 1, 2020
(Electronic) Receipt
PCTRO
Sep 1, 2020
Abstract
PCTRO
Sep 1, 2020
Claims
PCTRO
Sep 1, 2020
Description
PCTRO
Sep 1, 2020
Sep 1, 2020
Sep 1, 2020
Sep 1, 2020