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The patent EP3177672 was granted to Clariant on Dec 9, 2020. The application was filed on Jul 30, 2015 under application number EP15757144A. 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 |
|---|---|---|---|
| ARBAFLAME TECHNOLOGY | Sep 9, 2021 | WEICKMANN & WEICKMANN | ADMISSIBLE |
| ARBAFLAME TECHNOLOGY | Sep 9, 2021 | WEICKMANN & WEICKMANN PARTMBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP2134850 |
| DESCRIPTION | EP2471940 |
| DESCRIPTION | EP2623607 |
| INTERNATIONAL-SEARCH-REPORT | EP2623607 |
| INTERNATIONAL-SEARCH-REPORT | WO2010121367 |
| INTERNATIONAL-SEARCH-REPORT | WO2010151536 |
| INTERNATIONAL-SEARCH-REPORT | WO2011039635 |
| OPPOSITION | EP2537841 |
| OPPOSITION | US4136207 |
| OPPOSITION | WO2006024242 |
| OPPOSITION | WO2012041990 |
| OPPOSITION | WO2012085275 |
| OPPOSITION | WO2013025564 |
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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May 26, 2025
Refund of fees
Appeal
May 22, 2025
May 22, 2025
May 22, 2025
May 19, 2025
(Electronic) Receipt
Appeal
May 19, 2025
May 19, 2025
Withdrawal of an appeal
Appeal
Mar 12, 2025
Mar 11, 2025
(Electronic) Receipt
Appeal
Mar 11, 2025
Mar 11, 2025
Jan 10, 2025
Jan 10, 2025
Jul 19, 2024
Jul 19, 2024
Jul 16, 2024
Jul 16, 2024
May 27, 2024
May 27, 2024
May 22, 2024
Jan 19, 2024
Jan 16, 2024
Jan 2, 2024
Dec 22, 2023
(Electronic) Receipt
Appeal
Dec 22, 2023
Dec 22, 2023
Reply to appeal
Appeal
Aug 28, 2023
Aug 24, 2023
(Electronic) Receipt
Appeal
Aug 24, 2023
Aug 24, 2023
Aug 24, 2023
Aug 24, 2023
Aug 3, 2023
Aug 3, 2023
Jul 12, 2023
Jul 12, 2023
Jul 6, 2023
(Electronic) Receipt
Appeal
Jul 6, 2023
Jul 6, 2023
Notice of appeal
Appeal
May 10, 2023
May 9, 2023
May 9, 2023
May 9, 2023
May 9, 2023
May 9, 2023
May 9, 2023
May 9, 2023
Means of redress
OPPO
May 9, 2023
May 9, 2023
May 9, 2023
May 9, 2023
May 9, 2023
May 9, 2023
May 9, 2023
Mar 15, 2023
Mar 14, 2023
Mar 14, 2023
Authorisation
OPPO
Mar 14, 2023
Mar 14, 2023
Mar 7, 2023
Mar 1, 2023
Mar 1, 2023
Mar 1, 2023
Mar 1, 2023
Mar 1, 2023
Feb 28, 2023
Feb 23, 2023
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Dec 8, 2022
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Feb 11, 2022
Feb 8, 2022
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Sep 28, 2021
Sep 28, 2021
Sep 17, 2021
Sep 9, 2021
Sep 9, 2021
Sep 9, 2021
Sep 9, 2021
Sep 9, 2021
Sep 9, 2021
Sep 9, 2021
Sep 9, 2021
Sep 9, 2021
Sep 9, 2021
Sep 9, 2021
Sep 9, 2021
Aug 3, 2021
Annexes in respect of a client data request
Search/Exam
Aug 3, 2021
Annexes in respect of a client data request
Search/Exam
Aug 3, 2021
Annexes in respect of a client data request
Search/Exam
Aug 3, 2021
Annexes in respect of a client data request
Search/Exam
Aug 3, 2021
Annexes in respect of a client data request
Search/Exam
Aug 3, 2021
Annexes in respect of a client data request
Search/Exam
Aug 3, 2021
Letter accompanying subsequently filed items
Search/Exam
Aug 3, 2021
Letter concerning fees and payments
Search/Exam
Aug 3, 2021
Dec 21, 2020
Nov 12, 2020
Decision to grant a European patent
Search/Exam
Oct 28, 2020
(Electronic) Receipt
Search/Exam
Oct 28, 2020
Filing of the translations of the claims
Search/Exam
Oct 28, 2020
French translation of claims
Search/Exam
Oct 28, 2020
German translation of the claims
Search/Exam
Jul 6, 2020
Jul 6, 2020
Jul 6, 2020
Intention to grant (signatures)
Search/Exam
Jul 6, 2020
Text intended for grant (clean copy)
Search/Exam
Jul 6, 2020
Mar 17, 2020
Examination started
Search/Exam
Jul 3, 2018
Jun 28, 2018
Jun 28, 2018
Jan 23, 2018
Submission concerning representation
Search/Exam
Sep 19, 2017
(Electronic) Receipt
Search/Exam
Sep 19, 2017
Sep 19, 2017
Amended claims with annotations
Search/Exam
Sep 19, 2017
Amendments received before examination
Search/Exam
Sep 19, 2017
Letter accompanying subsequently filed items
Search/Exam
May 17, 2017
May 10, 2017
Communication to designated inventor
Search/Exam
Apr 28, 2017
(Electronic) Receipt
Search/Exam
Apr 28, 2017
Letter concerning the inventor
Search/Exam
Apr 25, 2017
Apr 13, 2017
Letter which had not been notified
Search/Exam
Mar 16, 2017
Mar 14, 2017
Communication to designated inventor
Search/Exam
Mar 14, 2017
Communication to designated inventor
Search/Exam
Mar 14, 2017
Communication to designated inventor
Search/Exam
Mar 14, 2017
Communication to designated inventor
Search/Exam
Mar 9, 2017
Priority search results copy provided by EPO
Search/Exam
Feb 23, 2017
Jan 11, 2017
(Electronic) Receipt
Search/Exam
Jan 11, 2017
Request for entry into the European phase
Search/Exam
Dec 16, 2016
Information on entry into European phase
Search/Exam
Aug 30, 2016
Mar 1, 2016
Feb 11, 2016
Copy of the international search report
Search/Exam
Feb 11, 2016
Published international application - A1
Search/Exam
Oct 9, 2015
ISR: cited documents
PCTISA
Oct 8, 2015
Oct 8, 2015
Oct 8, 2015
Sep 15, 2015
Sep 9, 2015
Jul 30, 2015
(Electronic) Receipt
PCTRO
Jul 30, 2015
Abstract
PCTRO
Jul 30, 2015
Claims
PCTRO
Jul 30, 2015
Description
PCTRO
Jul 30, 2015
Drawings
PCTRO
Jul 30, 2015