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The patent EP3487957 was granted to Clariant on Apr 12, 2023. The application was filed on Jul 12, 2017 under application number EP17740723A. 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 |
|---|---|---|---|
| NLO | Jan 12, 2024 | NEDERLANDSCH OCTROOIBUREAU | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | DE102014001222 |
| EXAMINATION | DE102016203221 |
| EXAMINATION | WO2016150846 |
| INTERNATIONAL-SEARCH-REPORT | DE102010018684 |
| INTERNATIONAL-SEARCH-REPORT | EP3091023 |
| INTERNATIONAL-SEARCH-REPORT | US2015183991 |
| INTERNATIONAL-SEARCH-REPORT | WO2011051121 |
| INTERNATIONAL-SEARCH-REPORT | WO2015101136 |
| OPPOSITION | CN102092754 |
| OPPOSITION | DE102016213280 |
| OPPOSITION | DE102016213282 |
| OPPOSITION | DE102016213821 |
| OPPOSITION | EP1544205 |
| OPPOSITION | EP1544206 |
| OPPOSITION | WO2014036871 |
| OPPOSITION | WO2014209590 |
| OPPOSITION | WO2018015253 |
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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Apr 25, 2023
Mar 16, 2023
Decision to grant a European patent
Search/Exam
Feb 24, 2023
(Electronic) Receipt
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Feb 24, 2023
English translation of the claims
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Feb 24, 2023
Filing of the translations of the claims
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Feb 24, 2023
French translation of claims
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Feb 24, 2023
Letter accompanying subsequently filed items
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Feb 16, 2023
Feb 10, 2023
Letter accompanying subsequently filed items
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Feb 10, 2023
Nov 15, 2022
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Intention to grant (signatures)
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Nov 15, 2022
Text intended for grant (clean copy)
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Nov 15, 2022
Mar 22, 2021
(Electronic) Receipt
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Mar 22, 2021
Amended description with annotations
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Mar 22, 2021
Description
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Mar 22, 2021
Letter accompanying subsequently filed items
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Mar 22, 2021
Jan 28, 2021
Annex to the communication
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Jan 28, 2021
Communication from the Examining Division
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Dec 4, 2020
(Electronic) Receipt
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Dec 4, 2020
Amended claims with annotations
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Dec 4, 2020
Claims
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Dec 4, 2020
Letter accompanying subsequently filed items
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Dec 4, 2020
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Oct 15, 2020
(Electronic) Receipt
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Oct 15, 2020
Letter accompanying subsequently filed items
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Oct 15, 2020
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Aug 5, 2020
Annex
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Aug 5, 2020
Letter accompanying subsequently filed items
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Jul 29, 2020
Annexes in respect of a client data request
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Jul 29, 2020
Annexes in respect of a client data request
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Jul 29, 2020
Annexes in respect of a client data request
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Jul 29, 2020
Annexes in respect of a client data request
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Jul 29, 2020
Annexes in respect of a client data request
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Jul 29, 2020
Letter accompanying subsequently filed items
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Jul 29, 2020
Jun 23, 2020
Annex to the communication
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Jun 23, 2020
Communication from the Examining Division
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Jun 9, 2020
Examination started
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Feb 13, 2020
Feb 10, 2020
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Nov 5, 2019
(Electronic) Receipt
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Nov 5, 2019
Letter accompanying subsequently filed items
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Nov 5, 2019
Priority search results
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Nov 5, 2019
Oct 21, 2019
Sep 5, 2019
(Electronic) Receipt
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Sep 5, 2019
Sep 5, 2019
Amended claims with annotations
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Sep 5, 2019
Amendments received before examination
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Sep 5, 2019
Annex
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Sep 5, 2019
Letter accompanying subsequently filed items
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May 2, 2019
Mar 1, 2019
Feb 27, 2019
Communication to designated inventor
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Feb 27, 2019
Communication to designated inventor
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Feb 27, 2019
Communication to designated inventor
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Feb 5, 2019
Dec 21, 2018
(Electronic) Receipt
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Dec 21, 2018
Request for entry into the European phase
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Nov 30, 2018
Information on entry into European phase
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Feb 12, 2018
Jan 25, 2018
Copy of the international search report
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Jan 25, 2018
Copy of the international search report
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Jan 25, 2018
Published international application - A1
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Oct 17, 2017
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(Electronic) Receipt
PCTRO
Jul 12, 2017
Abstract
PCTRO
Jul 12, 2017
Claims
PCTRO
Jul 12, 2017
Description
PCTRO
Jul 12, 2017
Jul 12, 2017