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The patent EP3357964 was granted to Borealis on Jul 26, 2023. The application was filed on Feb 3, 2017 under application number EP17154520A. 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 | Apr 24, 2024 | LYONDELLBASELL | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP0491566 |
| DESCRIPTION | EP0586390 |
| DESCRIPTION | EP0591224 |
| DESCRIPTION | EP0887379 |
| DESCRIPTION | EP1028984 |
| DESCRIPTION | EP1183307 |
| DESCRIPTION | EP2960256 |
| DESCRIPTION | WO0068315 |
| DESCRIPTION | WO2004000899 |
| DESCRIPTION | WO2004111095 |
| DESCRIPTION | WO2010149529 |
| DESCRIPTION | WO2014083130 |
| DESCRIPTION | WO2015082402 |
| DESCRIPTION | WO2015082403 |
| DESCRIPTION | WO9212182 |
| DESCRIPTION | WO9924478 |
| DESCRIPTION | WO9924479 |
| OPPOSITION | EP2067794 |
| OPPOSITION | WO2010108866 |
| OPPOSITION | WO2010128065 |
| OPPOSITION | WO2010149529 |
| OPPOSITION | WO2015082403 |
| OPPOSITION | WO2015100374 |
| SEARCH | EP2666818 |
| SEARCH | EP2787034 |
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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Means of redress
OPPO
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Annex
Search/Exam
Jun 24, 2025
Annexes in respect of a client data request
Search/Exam
Jun 24, 2025
Annexes in respect of a client data request
Search/Exam
Jun 24, 2025
Annexes in respect of a client data request
Search/Exam
Jun 24, 2025
Letter accompanying subsequently filed items
Search/Exam
Jun 24, 2025
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Aug 8, 2023
Jun 29, 2023
Decision to grant a European patent
Search/Exam
Jun 16, 2023
(Electronic) Receipt
Search/Exam
Jun 16, 2023
Filing of the translations of the claims
Search/Exam
Jun 16, 2023
French translation of claims
Search/Exam
Jun 16, 2023
German translation of the claims
Search/Exam
Apr 4, 2023
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Intention to grant (signatures)
Search/Exam
Apr 4, 2023
Text intended for grant (clean copy)
Search/Exam
Apr 4, 2023
Oct 13, 2022
Document concerning representation
Search/Exam
Feb 4, 2022
Jan 31, 2022
Letter accompanying subsequently filed items
Search/Exam
Jan 31, 2022
Sep 29, 2021
(Electronic) Receipt
Search/Exam
Sep 29, 2021
Amended description with annotations
Search/Exam
Sep 29, 2021
Description
Search/Exam
Sep 29, 2021
Letter accompanying subsequently filed items
Search/Exam
Sep 29, 2021
Jul 15, 2021
Annex to the communication
Search/Exam
Jul 15, 2021
Communication from the Examining Division
Search/Exam
Apr 6, 2021
(Electronic) Receipt
Search/Exam
Apr 6, 2021
Amended claims with annotations
Search/Exam
Apr 6, 2021
Claims
Search/Exam
Apr 6, 2021
Letter accompanying subsequently filed items
Search/Exam
Apr 6, 2021
Dec 15, 2020
Annex to the communication
Search/Exam
Dec 15, 2020
Communication from the Examining Division
Search/Exam
Mar 19, 2020
(Electronic) Receipt
Search/Exam
Mar 19, 2020
Letter accompanying subsequently filed items
Search/Exam
Mar 19, 2020
Dec 16, 2019
Annex to the communication
Search/Exam
Dec 16, 2019
Communication from the Examining Division
Search/Exam
Dec 10, 2019
Examination started
Search/Exam
Nov 27, 2018
Reply to Written Opinion prepared by the EPO
Search/Exam
Oct 22, 2018
Sep 28, 2018
Letter concerning the inventor
Search/Exam
Aug 21, 2018
(Electronic) Receipt
Search/Exam
Aug 21, 2018
Letter concerning fees and payments
Search/Exam
Aug 13, 2018
Jul 11, 2018
Notification of forthcoming publication
Search/Exam
Apr 20, 2018
Submission concerning representation
Search/Exam
Mar 29, 2018
Mar 29, 2018
Mar 23, 2018
(Electronic) Receipt
Search/Exam
Mar 23, 2018
Authorisation
Search/Exam
Mar 23, 2018
Letter accompanying subsequently filed items
Search/Exam
Mar 23, 2018
Jun 30, 2017
Jun 30, 2017
European search opinion
Search/Exam
Jun 30, 2017
European search report
Search/Exam
Jun 30, 2017
Information on Search Strategy
Search/Exam
Jun 26, 2017
Communication to designated inventor
Search/Exam
Jun 20, 2017
Letter which had not been notified
Search/Exam
May 16, 2017
(Electronic) Receipt
Search/Exam
May 16, 2017
Letter accompanying subsequently filed items
Search/Exam
May 16, 2017
Letter concerning search matters
Search/Exam
May 15, 2017
Communication to designated inventor
Search/Exam
May 9, 2017
(Electronic) Receipt
Search/Exam
May 9, 2017
(Electronic) Receipt
Search/Exam
May 9, 2017
Letter accompanying subsequently filed items
Search/Exam
May 9, 2017
Letter accompanying subsequently filed items
Search/Exam
May 9, 2017
Letter concerning the inventor
Search/Exam
May 9, 2017
Letter concerning the inventor
Search/Exam
Apr 24, 2017
Apr 13, 2017
Letter which had not been notified
Search/Exam
Mar 29, 2017
Communication to designated inventor
Search/Exam
Mar 29, 2017
Communication to designated inventor
Search/Exam
Mar 29, 2017
Communication to designated inventor
Search/Exam
Mar 29, 2017
Communication to designated inventor
Search/Exam
Mar 29, 2017
Communication to designated inventor
Search/Exam
Mar 23, 2017
Mar 23, 2017
Information on Search Strategy
Search/Exam
Mar 23, 2017
Partial European search report
Search/Exam
Mar 16, 2017
Search started
Search/Exam
Feb 3, 2017
Abstract
Search/Exam
Feb 3, 2017
Feb 3, 2017
Claims
Search/Exam
Feb 3, 2017
Description
Search/Exam
Feb 3, 2017
Designation of inventor
Search/Exam
Feb 3, 2017
Request for grant of a European patent
Search/Exam