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The patent EP3390049 was granted to Borealis on Aug 19, 2020. The application was filed on Dec 13, 2016 under application number EP16809409A. 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 |
|---|---|---|---|
| TREOFAN GERMANY | May 19, 2021 | MAI BESIER | ADMISSIBLE |
| THE DOW CHEMICAL | May 18, 2021 | BOULT WADE TENNANT | ADMISSIBLE |
| SABIC SABIC PETROCHEMICALS | May 17, 2021 | SABIC GROUP | ADMISSIBLE |
| SABIC SABIC PETROCHEMICALS | May 17, 2021 | SABIC INTELLECTUAL GROUP | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | EP1941998 |
| INTERNATIONAL-SEARCH-REPORT | WO2009112255 |
| OPPOSITION | CA2083557 |
| OPPOSITION | EP0173277 |
| OPPOSITION | EP0317237 |
| OPPOSITION | EP0358445 |
| OPPOSITION | EP0372886 |
| OPPOSITION | EP1941998 |
| OPPOSITION | JP2004176210 |
| OPPOSITION | US2014295118 |
| OPPOSITION | US5075152 |
| OPPOSITION | US5091241 |
| OPPOSITION | US6479137 |
| OPPOSITION | WO2009112255 |
| OPPOSITION | WO2013004646 |
| OPPOSITION | WO9638299 |
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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(Electronic) Receipt
Appeal
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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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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Search/Exam
Jun 2, 2025
Letter accompanying subsequently filed items
Search/Exam
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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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(Electronic) Receipt
Appeal
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Appeal
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(Electronic) Receipt
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Reply to appeal
Appeal
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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
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(Electronic) Receipt
Appeal
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Notice of appeal
Appeal
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Decision to grant a European patent
Search/Exam
Jul 7, 2020
(Electronic) Receipt
Search/Exam
Jul 7, 2020
Filing of the translations of the claims
Search/Exam
Jul 7, 2020
French translation of claims
Search/Exam
Jul 7, 2020
German translation of the claims
Search/Exam
Jul 7, 2020
Letter accompanying subsequently filed items
Search/Exam
Mar 3, 2020
Mar 3, 2020
Mar 3, 2020
Intention to grant (signatures)
Search/Exam
Mar 3, 2020
Text intended for grant (clean copy)
Search/Exam
Mar 3, 2020
Jan 7, 2020
Examination started
Search/Exam
Feb 7, 2019
(Electronic) Receipt
Search/Exam
Feb 7, 2019
Letter accompanying subsequently filed items
Search/Exam
Feb 7, 2019
Reply to Written Opinion prepared by the EPO
Search/Exam
Sep 26, 2018
Aug 3, 2018
Jul 28, 2018
Priority search results copy provided by EPO
Search/Exam
Jul 23, 2018
Communication to designated inventor
Search/Exam
Jul 23, 2018
Communication to designated inventor
Search/Exam
Jul 23, 2018
Communication to designated inventor
Search/Exam
Jul 23, 2018
Communication to designated inventor
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Jul 23, 2018
Communication to designated inventor
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Jul 13, 2018
(Electronic) Receipt
Search/Exam
Jul 13, 2018
Request for entry into the European phase
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Jul 5, 2018
Apr 30, 2018
Information on entry into European phase
Search/Exam
Jul 10, 2017
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Copy of the international search report
Search/Exam
Jun 22, 2017
Published international application - A1
Search/Exam
Feb 21, 2017
ISR: cited documents
PCTISA
Feb 20, 2017
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(Electronic) Receipt
PCTRO
Jan 23, 2017
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(Electronic) Receipt
PCTRO
Dec 13, 2016
Abstract
PCTRO
Dec 13, 2016
Claims
PCTRO
Dec 13, 2016
Description
PCTRO
Dec 13, 2016