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The patent EP3253812 was granted to Taminco on Apr 29, 2020. The application was filed on Feb 5, 2016 under application number EP16703142A. The patent is currently recorded with a legal status of "Revoked".

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 |
|---|---|---|---|
| ADVANSIX RESINS & CHEMICALS | Jan 21, 2021 | CROOKS | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE102007028890 |
| DESCRIPTION | US2011306724 |
| DESCRIPTION | US2014248232 |
| DESCRIPTION | US3573049 |
| DESCRIPTION | US3905929 |
| DESCRIPTION | US3920598 |
| DESCRIPTION | US4237264 |
| DESCRIPTION | US4238378 |
| DESCRIPTION | WO2005090430 |
| DESCRIPTION | WO2013107822 |
| INTERNATIONAL-SEARCH-REPORT | DE102007028890 |
| INTERNATIONAL-SEARCH-REPORT | EP1717257 |
| INTERNATIONAL-SEARCH-REPORT | WO2013107822 |
| OPPOSITION | DE102007028890 |
| OPPOSITION | US2007197720 |
| OPPOSITION | US5681622 |
| OPPOSITION | WO2013107822 |
| OPPOSITION | WO2014039302 |
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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(Electronic) Receipt
Appeal
Apr 5, 2024
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(Electronic) Receipt
Appeal
Feb 12, 2024
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(Electronic) Receipt
Appeal
Jan 5, 2024
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(Electronic) Receipt
Appeal
Dec 13, 2023
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(Electronic) Receipt
Appeal
Nov 17, 2023
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(Electronic) Receipt
Appeal
Nov 6, 2023
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Mar 2, 2023
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Reply to appeal
Appeal
Oct 25, 2022
Oct 20, 2022
(Electronic) Receipt
Appeal
Oct 20, 2022
Oct 20, 2022
Aug 3, 2022
Aug 3, 2022
Jul 29, 2022
(Electronic) Receipt
Appeal
Jul 29, 2022
Jul 29, 2022
Notice of appeal
Appeal
Jul 19, 2022
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Means of redress
OPPO
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May 11, 2020
Apr 2, 2020
Decision to grant a European patent
Search/Exam
Mar 19, 2020
(Electronic) Receipt
Search/Exam
Mar 19, 2020
Filing of the translations of the claims
Search/Exam
Mar 19, 2020
French translation of claims
Search/Exam
Mar 19, 2020
German translation of the claims
Search/Exam
Mar 19, 2020
Letter accompanying subsequently filed items
Search/Exam
Nov 20, 2019
Nov 20, 2019
Nov 20, 2019
Intention to grant (signatures)
Search/Exam
Nov 20, 2019
Text intended for grant (clean copy)
Search/Exam
Nov 20, 2019
Jul 29, 2019
(Electronic) Receipt
Search/Exam
Jul 29, 2019
Amended claims with annotations
Search/Exam
Jul 29, 2019
Amended description with annotations
Search/Exam
Jul 29, 2019
Claims
Search/Exam
Jul 29, 2019
Description
Search/Exam
Jul 29, 2019
Letter accompanying subsequently filed items
Search/Exam
Jul 29, 2019
Jun 24, 2019
Annex to the communication
Search/Exam
Jun 24, 2019
Communication from the Examining Division
Search/Exam
Jun 12, 2019
Examination started
Search/Exam
Apr 10, 2018
(Electronic) Receipt
Search/Exam
Apr 10, 2018
Apr 10, 2018
Amended claims with annotations
Search/Exam
Apr 10, 2018
Amendments received before examination
Search/Exam
Apr 10, 2018
Letter accompanying subsequently filed items
Search/Exam
Nov 15, 2017
Oct 6, 2017
Oct 4, 2017
Communication to designated inventor
Search/Exam
Oct 4, 2017
Communication to designated inventor
Search/Exam
Oct 4, 2017
Communication to designated inventor
Search/Exam
Sep 28, 2017
Priority search results copy provided by EPO
Search/Exam
Sep 5, 2017
(Electronic) Receipt
Search/Exam
Sep 5, 2017
Request for entry into the European phase
Search/Exam
Aug 23, 2017
Jun 19, 2017
Information on entry into European phase
Search/Exam
Aug 30, 2016
Aug 11, 2016
Copy of the international search report
Search/Exam
Aug 11, 2016
Aug 11, 2016
Published international application - A1
Search/Exam
May 18, 2016
ISR: cited documents
PCTISA
May 17, 2016
May 17, 2016
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Feb 23, 2016
Feb 16, 2016
Feb 12, 2016
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(Electronic) Receipt
PCTRO
Feb 5, 2016
Abstract
PCTRO
Feb 5, 2016
Claims
PCTRO
Feb 5, 2016
Description
PCTRO
Feb 5, 2016
Feb 5, 2016
Feb 5, 2016