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The patent EP3599891 was granted to Beneo on Aug 4, 2021. The application was filed on Mar 21, 2018 under application number EP18711572A. 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 |
|---|---|---|---|
| MARGARET DIXON | May 3, 2022 | AERA | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP1038882 |
| DESCRIPTION | EP2674038 |
| DESCRIPTION | US2015368370 |
| DESCRIPTION | US5718770 |
| DESCRIPTION | WO2013173161 |
| DESCRIPTION | WO2014042537 |
| INTERNATIONAL-SEARCH-REPORT | EP1038882 |
| INTERNATIONAL-SEARCH-REPORT | EP2674038 |
| INTERNATIONAL-SEARCH-REPORT | US5718770 |
| OPPOSITION | EP1038882 |
| OPPOSITION | EP17000468 |
| OPPOSITION | EP2674038 |
| OPPOSITION | EP3599891 |
| OPPOSITION | US3578498 |
| OPPOSITION | US5718770 |
| OPPOSITION | US8574657 |
| OPPOSITION | US8703933 |
| OPPOSITION | WO2013173161 |
| OPPOSITION | WO2018172398 |
| OPPOSITION | WO9504082 |
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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Jul 23, 2025
Jul 23, 2025
Jul 18, 2025
(Electronic) Receipt
Appeal
Jul 18, 2025
(Electronic) Receipt
Appeal
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Claims
Appeal
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Appeal
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Appeal
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Appeal
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Appeal
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Claims
Appeal
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Reply to appeal
Appeal
Jul 18, 2025
Reply to appeal
Appeal
May 14, 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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Notice of appeal
Appeal
Jan 17, 2025
(Electronic) Receipt
Appeal
Jan 17, 2025
Notice of appeal
Appeal
Jan 17, 2025
Notice of appeal
Appeal
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Aug 17, 2021
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Decision to grant a European patent
Search/Exam
Jun 28, 2021
(Electronic) Receipt
Search/Exam
Jun 28, 2021
Letter accompanying subsequently filed items
Search/Exam
May 6, 2021
Mar 9, 2021
Decision to allow further processing
Search/Exam
Mar 1, 2021
(Electronic) Receipt
Search/Exam
Mar 1, 2021
Letter accompanying subsequently filed items
Search/Exam
Mar 1, 2021
Request for further processing
Search/Exam
Jan 14, 2021
Jan 12, 2021
Dec 3, 2020
Filing of the translations of the claims
Search/Exam
Dec 3, 2020
French translation of claims
Search/Exam
Dec 3, 2020
German translation of the claims
Search/Exam
Dec 3, 2020
Payment of fees and costs
Search/Exam
Jul 28, 2020
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Intention to grant (signatures)
Search/Exam
Jul 28, 2020
Text intended for grant (clean copy)
Search/Exam
Jul 28, 2020
Jul 15, 2020
Examination started
Search/Exam
Apr 15, 2020
(Electronic) Receipt
Search/Exam
Apr 15, 2020
Apr 15, 2020
Amended claims with annotations
Search/Exam
Apr 15, 2020
Amendments received before examination
Search/Exam
Apr 15, 2020
Letter accompanying subsequently filed items
Search/Exam
Jan 9, 2020
Oct 29, 2019
Oct 25, 2019
Communication to designated inventor
Search/Exam
Oct 25, 2019
Communication to designated inventor
Search/Exam
Oct 25, 2019
Communication to designated inventor
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Oct 25, 2019
Communication to designated inventor
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Oct 25, 2019
Communication to designated inventor
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Oct 22, 2019
Priority search results copy provided by EPO
Search/Exam
Oct 10, 2019
(Electronic) Receipt
Search/Exam
Oct 10, 2019
Request for entry into the European phase
Search/Exam
Oct 8, 2019
Jul 31, 2019
Information on entry into European phase
Search/Exam
Oct 16, 2018
Sep 27, 2018
Copy of the international search report
Search/Exam
Sep 27, 2018
Published international application - A1
Search/Exam
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ISR: cited documents
PCTISA
Apr 30, 2018
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Apr 26, 2018
(Electronic) Receipt
PCTRO
Apr 26, 2018
Apr 26, 2018
Apr 4, 2018
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Mar 27, 2018
Mar 21, 2018
(Electronic) Receipt
PCTRO
Mar 21, 2018
Abstract
PCTRO
Mar 21, 2018
Claims
PCTRO
Mar 21, 2018
Description
PCTRO
Mar 21, 2018
Mar 21, 2018
Drawings
PCTRO
Mar 21, 2018
Mar 21, 2018