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The patent EP3800231 was granted to Totalenergies Onetech on Aug 11, 2021. The application was filed on May 20, 2016 under application number EP20210471A. 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 |
|---|---|---|---|
| CABINET TRIPOZ | May 11, 2022 | TRIPOZ | ADMISSIBLE |
| NESTE OYJ | May 9, 2022 | TBK | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP1728844 |
| DESCRIPTION | EP2084245 |
| DESCRIPTION | EP2368967 |
| DESCRIPTION | US2009014354 |
| DESCRIPTION | US2012283492 |
| DESCRIPTION | US2014323777 |
| DESCRIPTION | WO0020534 |
| DESCRIPTION | WO2006084285 |
| DESCRIPTION | WO2014033762 |
| OPPOSITION | EP2368967 |
| OPPOSITION | EP2770512 |
| OPPOSITION | EP3095838 |
| OPPOSITION | EP3095839 |
| OPPOSITION | SG2013051370 |
| OPPOSITION | US2004173502 |
| OPPOSITION | US2006264684 |
| OPPOSITION | US2009014354 |
| OPPOSITION | US2011087058 |
| OPPOSITION | US2012264656 |
| OPPOSITION | US2012283492 |
| OPPOSITION | US2013001127 |
| OPPOSITION | US2014323777 |
| OPPOSITION | US2016281009 |
| OPPOSITION | US6096940 |
| OPPOSITION | US6458265 |
| OPPOSITION | US7667086 |
| OPPOSITION | US8581013 |
| OPPOSITION | US8969259 |
| OPPOSITION | WO2008152199 |
| OPPOSITION | WO2011061575 |
| OPPOSITION | WO2012141784 |
| OPPOSITION | WO2015004329 |
| OPPOSITION | WO2015044287 |
| OPPOSITION | WO2015044289 |
| OPPOSITION | WO2015071160 |
| OPPOSITION | WO2015101837 |
| OPPOSITION | WO2016185047 |
| OPPOSITION | WO2021013860 |
| SEARCH | EP2368967 |
| SEARCH | US2009014354 |
| SEARCH | US2012283492 |
| SEARCH | US2013001127 |
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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(Electronic) Receipt
Appeal
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Reply to appeal
Appeal
Oct 10, 2025
(Electronic) Receipt
Appeal
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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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Appeal
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Notice of appeal
Appeal
Apr 7, 2025
(Electronic) Receipt
Appeal
Apr 7, 2025
Notice of appeal
Appeal
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(Electronic) Receipt
Search/Exam
Feb 27, 2025
Annexes in respect of a client data request
Search/Exam
Feb 27, 2025
Annexes in respect of a client data request
Search/Exam
Feb 27, 2025
Annexes in respect of a client data request
Search/Exam
Feb 27, 2025
Authorisation
Search/Exam
Feb 27, 2025
Letter accompanying subsequently filed items
Search/Exam
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Means of redress
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Authorisation
Search/Exam
Jun 17, 2024
Letter accompanying subsequently filed items
Search/Exam
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Aug 24, 2021
Jul 15, 2021
Decision to grant a European patent
Search/Exam
Jul 2, 2021
(Electronic) Receipt
Search/Exam
Jul 2, 2021
Filing of the translations of the claims
Search/Exam
Jul 2, 2021
French translation of claims
Search/Exam
Jul 2, 2021
German translation of the claims
Search/Exam
Jul 2, 2021
Letter accompanying subsequently filed items
Search/Exam
Jun 23, 2021
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Intention to grant (signatures)
Search/Exam
Jun 23, 2021
Text intended for grant (clean copy)
Search/Exam
Jun 23, 2021
May 26, 2021
Examination started
Search/Exam
Apr 15, 2021
(Electronic) Receipt
Search/Exam
Apr 15, 2021
Letter accompanying subsequently filed items
Search/Exam
Apr 12, 2021
Mar 30, 2021
Document concerning representation
Search/Exam
Mar 30, 2021
Letter accompanying subsequently filed items
Search/Exam
Mar 11, 2021
Notification of forthcoming publication
Search/Exam
Mar 4, 2021
(Electronic) Receipt
Search/Exam
Mar 4, 2021
Letter accompanying subsequently filed items
Search/Exam
Mar 3, 2021
Refund of fees
Search/Exam
Mar 1, 2021
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European search opinion
Search/Exam
Mar 1, 2021
European search report
Search/Exam
Mar 1, 2021
Information on Search Strategy
Search/Exam
Feb 16, 2021
Search started
Search/Exam
Jan 20, 2021
Communication to designated inventor
Search/Exam
Jan 20, 2021
Communication to designated inventor
Search/Exam
Dec 3, 2020
(Electronic) Receipt
Search/Exam
Dec 3, 2020
Letter accompanying subsequently filed items
Search/Exam
Dec 3, 2020
Matter concerning the application
Search/Exam
Dec 2, 2020
Priority search results copy provided by EPO
Search/Exam
Nov 27, 2020
Abstract
Search/Exam
Nov 27, 2020
Nov 27, 2020
Claims
Search/Exam
Nov 27, 2020
Description
Search/Exam
Nov 27, 2020
Designation of inventor
Search/Exam
Nov 27, 2020
Request for grant of a European patent
Search/Exam
Dec 20, 2017
Priority search results copy provided by EPO
Search/Exam
Dec 12, 2016