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The patent EP3214211 was granted to DOW on Sep 3, 2025. The application was filed on Mar 3, 2016 under application number EP16382094A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 |
|---|---|---|---|
| TOTALENERGIES ONETECH BELGIUM | Sep 29, 2021 | DE CLERCQ & PARTNERS | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2011015346 |
| DESCRIPTION | US5064802 |
| DESCRIPTION | US5153157 |
| DESCRIPTION | US5296433 |
| DESCRIPTION | US5321106 |
| DESCRIPTION | US5350723 |
| DESCRIPTION | US5425872 |
| DESCRIPTION | US5625087 |
| DESCRIPTION | US5721185 |
| DESCRIPTION | US5783512 |
| DESCRIPTION | US5883204 |
| DESCRIPTION | US5919983 |
| DESCRIPTION | US5977251 |
| DESCRIPTION | US6103657 |
| DESCRIPTION | US6515155 |
| DESCRIPTION | US6696379 |
| DESCRIPTION | US7163907 |
| DESCRIPTION | US8372931 |
| OPPOSITION | EP2752509 |
| OPPOSITION | US2011039082 |
| OPPOSITION | US6448341 |
| OPPOSITION | WO2011109563 |
| OPPOSITION | WO2014012250 |
| OPPOSITION | WO2016003880 |
| OPPOSITION | WO2016090633 |
| OPPOSITION | WO2020112526 |
| SEARCH | US2013030123 |
| SEARCH | US2013190465 |
| SEARCH | US2014242304 |
| SEARCH | US5977251 |
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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Aug 7, 2025
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(Electronic) Receipt
Appeal
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Appeal
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(Electronic) Receipt
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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Appeal
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(Electronic) Receipt
Appeal
Nov 2, 2023
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Reply to appeal
Appeal
Jul 4, 2023
Jun 29, 2023
(Electronic) Receipt
Appeal
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Appeal
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Notice of appeal
Appeal
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Means of redress
OPPO
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Jan 18, 2021
Dec 3, 2020
Decision to grant a European patent
Search/Exam
Nov 19, 2020
(Electronic) Receipt
Search/Exam
Nov 19, 2020
Filing of the translations of the claims
Search/Exam
Nov 19, 2020
French translation of claims
Search/Exam
Nov 19, 2020
German translation of the claims
Search/Exam
Nov 19, 2020
Letter accompanying subsequently filed items
Search/Exam
Jul 21, 2020
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Intention to grant (signatures)
Search/Exam
Jul 21, 2020
Text intended for grant (clean copy)
Search/Exam
Jul 21, 2020
May 7, 2020
(Electronic) Receipt
Search/Exam
May 7, 2020
Letter accompanying subsequently filed items
Search/Exam
May 7, 2020
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Translation of the claims
Search/Exam
May 7, 2020
Translation of the claims
Search/Exam
Jan 3, 2020
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Intention to grant (signatures)
Search/Exam
Jan 3, 2020
Text intended for grant (clean copy)
Search/Exam
Jan 3, 2020
Nov 26, 2019
Examination started
Search/Exam
Jul 25, 2019
Jun 12, 2018
Jun 7, 2018
Submission concerning representation
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Mar 2, 2018
(Electronic) Receipt
Search/Exam
Mar 2, 2018
Mar 2, 2018
Amended claims with annotations
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Mar 2, 2018
Amendments received before examination
Search/Exam
Mar 2, 2018
Letter accompanying subsequently filed items
Search/Exam
Sep 11, 2017
Aug 9, 2017
Notification of forthcoming publication
Search/Exam
Jul 19, 2017
(Electronic) Receipt
Search/Exam
Feb 13, 2017
(Electronic) Receipt
Search/Exam
Jun 3, 2016
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European search opinion
Search/Exam
Jun 3, 2016
European search report
Search/Exam
Jun 3, 2016
Information on Search Strategy
Search/Exam
May 24, 2016
Search started
Search/Exam
Apr 26, 2016
Communication to designated inventor
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Apr 26, 2016
Communication to designated inventor
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Apr 26, 2016
Communication to designated inventor
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Apr 26, 2016
Communication to designated inventor
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Apr 26, 2016
Communication to designated inventor
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Mar 15, 2016
Mar 3, 2016
Abstract
Search/Exam
Mar 3, 2016
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Claims
Search/Exam
Mar 3, 2016
Description
Search/Exam
Mar 3, 2016
Designation of inventor
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Mar 3, 2016
Request for grant of a European patent
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