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The patent EP3606749 was granted to DOW on Mar 24, 2021. The application was filed on Apr 4, 2018 under application number EP18720830A. 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 |
|---|---|---|---|
| ABU DHABI POLYMERS BOROUGE | Dec 23, 2021 | DEHNS | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | US2016229157 |
| INTERNATIONAL-SEARCH-REPORT | US2016339663 |
| INTERNATIONAL-SEARCH-REPORT | WO2017024576 |
| OPPOSITION | US2016339663 |
| OPPOSITION | WO2008034630 |
| OPPOSITION | WO2017003543 |
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 22, 2025
Dec 22, 2025
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Jan 10, 2025
(Electronic) Receipt
Appeal
Jan 10, 2025
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Reply to appeal
Appeal
Sep 11, 2024
Sep 6, 2024
(Electronic) Receipt
Appeal
Sep 6, 2024
Sep 6, 2024
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Jul 4, 2024
(Electronic) Receipt
Appeal
Jul 4, 2024
Jul 4, 2024
Notice of appeal
Appeal
May 7, 2024
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Means of redress
OPPO
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Decision to grant a European patent
Search/Exam
Feb 16, 2021
(Electronic) Receipt
Search/Exam
Feb 16, 2021
Filing of the translations of the claims
Search/Exam
Feb 16, 2021
French translation of claims
Search/Exam
Feb 16, 2021
German translation of the claims
Search/Exam
Feb 16, 2021
Letter accompanying subsequently filed items
Search/Exam
Oct 21, 2020
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Intention to grant (signatures)
Search/Exam
Oct 21, 2020
Text intended for grant (clean copy)
Search/Exam
Oct 21, 2020
Sep 24, 2020
Examination started
Search/Exam
Aug 4, 2020
(Electronic) Receipt
Search/Exam
Aug 4, 2020
Letter accompanying subsequently filed items
Search/Exam
Aug 4, 2020
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May 22, 2020
(Electronic) Receipt
Search/Exam
May 22, 2020
May 22, 2020
Amended claims with annotations
Search/Exam
May 22, 2020
Amendments received before examination
Search/Exam
May 22, 2020
Letter accompanying subsequently filed items
Search/Exam
Jan 15, 2020
Nov 27, 2019
(Electronic) Receipt
Search/Exam
Nov 27, 2019
Letter accompanying subsequently filed items
Search/Exam
Nov 27, 2019
Nov 22, 2019
Nov 15, 2019
Communication to designated inventor
Search/Exam
Nov 15, 2019
Communication to designated inventor
Search/Exam
Nov 14, 2019
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Letter concerning the priority
Search/Exam
Nov 14, 2019
Priority document
Search/Exam
Nov 13, 2019
Communication to designated inventor
Search/Exam
Nov 13, 2019
Communication to designated inventor
Search/Exam
Nov 6, 2019
Nov 5, 2019
(Electronic) Receipt
Search/Exam
Nov 5, 2019
Request for entry into the European phase
Search/Exam
Oct 22, 2019
Aug 19, 2019
Information on entry into European phase
Search/Exam
Jan 8, 2019
Oct 11, 2018
Copy of the international search report
Search/Exam
Oct 11, 2018
Published international application - A1
Search/Exam
Jun 6, 2018
ISR: cited documents
PCTISA
Jun 5, 2018
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May 15, 2018
Apr 26, 2018
Abstract
PCTISA
Apr 26, 2018
Annex
PCTISA
Apr 26, 2018
Claims
PCTISA
Apr 26, 2018
Description
PCTISA
Apr 26, 2018
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