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The patent EP3622017 was granted to Borealis on Jan 25, 2023. The application was filed on May 2, 2018 under application number EP18720277A. 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 |
|---|---|---|---|
| BASELL POLIOLEFINE ITALIA | Oct 25, 2023 | LYONDELLBASELL | ADMISSIBLE |
| SABIC SABIC PETROCHEMICALS | Oct 25, 2023 | SABIC GROUP | ADMISSIBLE |
| TOTALENERGIES ONETECH | Oct 25, 2023 | MELLET | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | WO2007071494 |
| INTERNATIONAL-SEARCH-REPORT | WO2015169690 |
| INTERNATIONAL-SEARCH-REPORT | WO2017060139 |
| OPPOSITION | CN104693595 |
| OPPOSITION | EP2348058 |
| OPPOSITION | EP2669329 |
| OPPOSITION | EP3140348 |
| OPPOSITION | EP3165473 |
| OPPOSITION | WO2007071494 |
| OPPOSITION | WO2011117032 |
| OPPOSITION | WO2012016965 |
| OPPOSITION | WO2013010879 |
| OPPOSITION | WO2015091372 |
| OPPOSITION | WO2015169690 |
| OPPOSITION | WO2016005301 |
| OPPOSITION | WO2017013096 |
| OPPOSITION | WO2017060139 |
| OPPOSITION | WO2017076933 |
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
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(Electronic) Receipt
Appeal
Dec 15, 2025
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Notice of appeal
Appeal
Dec 12, 2025
(Electronic) Receipt
Appeal
Dec 12, 2025
Notice of appeal
Appeal
Dec 12, 2025
Notice of appeal
Appeal
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Annex
OPPO
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Jan 5, 2023
Decision to grant a European patent
Search/Exam
Dec 21, 2022
(Electronic) Receipt
Search/Exam
Dec 21, 2022
Filing of the translations of the claims
Search/Exam
Dec 21, 2022
French translation of claims
Search/Exam
Dec 21, 2022
German translation of the claims
Search/Exam
Oct 13, 2022
Document concerning representation
Search/Exam
Sep 20, 2022
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Intention to grant (signatures)
Search/Exam
Sep 20, 2022
Text intended for grant (clean copy)
Search/Exam
Sep 20, 2022
May 30, 2022
(Electronic) Receipt
Search/Exam
May 30, 2022
Amended claims with annotations
Search/Exam
May 30, 2022
Amended description with annotations
Search/Exam
May 30, 2022
Claims
Search/Exam
May 30, 2022
Description
Search/Exam
May 30, 2022
Letter accompanying subsequently filed items
Search/Exam
May 30, 2022
Feb 11, 2022
Annex to the communication
Search/Exam
Feb 11, 2022
Communication from the Examining Division
Search/Exam
Feb 7, 2022
Examination started
Search/Exam
Feb 4, 2022
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Letter accompanying subsequently filed items
Search/Exam
Jan 31, 2022
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(Electronic) Receipt
Search/Exam
Jun 16, 2020
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Amended claims with annotations
Search/Exam
Jun 16, 2020
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Search/Exam
Jun 16, 2020
Letter accompanying subsequently filed items
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Change to the inventor details
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Feb 12, 2020
Communication to designated inventor
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Feb 7, 2020
(Electronic) Receipt
Search/Exam
Feb 7, 2020
Letter accompanying subsequently filed items
Search/Exam
Feb 7, 2020
Letter concerning the inventor
Search/Exam
Jan 17, 2020
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Letter which had not been notified
Search/Exam
Dec 17, 2019
Dec 13, 2019
Communication to designated inventor
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Dec 13, 2019
Communication to designated inventor
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Dec 13, 2019
Communication to designated inventor
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Dec 13, 2019
Communication to designated inventor
Search/Exam
Dec 10, 2019
Priority search results copy provided by EPO
Search/Exam
Nov 26, 2019
Nov 15, 2019
(Electronic) Receipt
Search/Exam
Nov 15, 2019
Request for entry into the European phase
Search/Exam
Sep 20, 2019
Information on entry into European phase
Search/Exam
Dec 6, 2018
Nov 15, 2018
Copy of the international search report
Search/Exam
Nov 15, 2018
Published international application - A1
Search/Exam
Jun 8, 2018
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(Electronic) Receipt
PCTRO
May 2, 2018
Abstract
PCTRO
May 2, 2018
Claims
PCTRO
May 2, 2018
Description
PCTRO
May 2, 2018
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