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The patent EP3214118 was granted to Guangzhou Kingsky Material on Oct 7, 2020. The application was filed on Aug 9, 2015 under application number EP15855341A. 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 |
|---|---|---|---|
| CLARIANT PRODUKTE DEUTSCHLAND | Jul 6, 2021 | MIKULECKY | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | CN104371142 |
| INTERNATIONAL-SEARCH-REPORT | CN104497504 |
| INTERNATIONAL-SEARCH-REPORT | CN1280583 |
| INTERNATIONAL-SEARCH-REPORT | TW201335345 |
| OPPOSITION | CN103965239 |
| OPPOSITION | US2005137418 |
| OPPOSITION | US2006074157 |
| OPPOSITION | US2011021676 |
| OPPOSITION | US2011251314 |
| OPPOSITION | US2013190432 |
| OPPOSITION | US2014309340 |
| OTHER | CN1280583 |
| OTHER | DE102008064012 |
| OTHER | DE102011120200 |
| OTHER | TW201335345 |
| OTHER | US2011021676 |
| OTHER | US7420007 |
| OTHER | US7446140 |
| OTHER | US7635785 |
| OTHER | WO2013083247 |
| OTHER | WO2015113740 |
| OTHER | WO9928327 |
| SEARCH | US6270560 |
| SEARCH | US7420007 |
| SEARCH | US7635785 |
| SEARCH | WO2013083247 |
| SEARCH | WO2016101800 |
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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OPPO
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OPPO
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Authorisation
OPPO
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Authorisation
OPPO
Nov 26, 2021
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Oct 19, 2020
Sep 10, 2020
Decision to grant a European patent
Search/Exam
Aug 31, 2020
(Electronic) Receipt
Search/Exam
Aug 31, 2020
Filing of the translations of the claims
Search/Exam
Aug 31, 2020
French translation of claims
Search/Exam
Aug 31, 2020
German translation of the claims
Search/Exam
Jul 16, 2020
Jun 24, 2020
(Electronic) Receipt
Search/Exam
Jun 24, 2020
Letter accompanying subsequently filed items
Search/Exam
Jun 24, 2020
May 14, 2020
May 14, 2020
May 14, 2020
Intention to grant (signatures)
Search/Exam
May 14, 2020
Text intended for grant (clean copy)
Search/Exam
May 14, 2020
Jan 21, 2020
(Electronic) Receipt
Search/Exam
Jan 21, 2020
Amended description with annotations
Search/Exam
Jan 21, 2020
Description
Search/Exam
Jan 21, 2020
Letter accompanying subsequently filed items
Search/Exam
Jan 21, 2020
Nov 29, 2019
Annex to the communication
Search/Exam
Nov 29, 2019
Communication from the Examining Division
Search/Exam
Aug 23, 2019
(Electronic) Receipt
Search/Exam
Aug 23, 2019
Amended claims with annotations
Search/Exam
Aug 23, 2019
Claims
Search/Exam
Aug 23, 2019
Letter accompanying subsequently filed items
Search/Exam
Aug 23, 2019
Jul 16, 2019
Jul 11, 2019
(Electronic) Receipt
Search/Exam
Jul 11, 2019
Letter accompanying subsequently filed items
Search/Exam
Jul 11, 2019
Mar 1, 2019
Annex to the communication
Search/Exam
Mar 1, 2019
Communication from the Examining Division
Search/Exam
Feb 12, 2019
Examination started
Search/Exam
Jan 30, 2019
(Electronic) Receipt
Search/Exam
Jan 30, 2019
Letter accompanying subsequently filed items
Search/Exam
Jan 30, 2019
Priority search results
Search/Exam
Jan 30, 2019
Priority search results
Search/Exam
Jan 30, 2019
Nov 30, 2018
Nov 16, 2018
(Electronic) Receipt
Search/Exam
Nov 16, 2018
Nov 16, 2018
Amended claims with annotations
Search/Exam
Nov 16, 2018
Nov 16, 2018
Amended description with annotations
Search/Exam
Nov 16, 2018
Amendments received before examination
Search/Exam
Nov 16, 2018
Letter accompanying subsequently filed items
Search/Exam
Nov 16, 2018
Translation of priority document
Search/Exam
May 17, 2018
May 17, 2018
Apr 30, 2018
Apr 30, 2018
European search opinion
Search/Exam
Apr 30, 2018
Information on Search Strategy
Search/Exam
Apr 30, 2018
Supplementary European search report
Search/Exam
Apr 20, 2018
Apr 20, 2018
Apr 10, 2018
Search started
Search/Exam
Mar 27, 2018
Citation filed by a third party
Search/Exam
Mar 27, 2018
Citation filed by a third party
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Mar 27, 2018
Citation filed by a third party
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Mar 27, 2018
Citation filed by a third party
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Mar 27, 2018
Citation filed by a third party
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Mar 27, 2018
Citation filed by a third party
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Mar 27, 2018
Citation filed by a third party
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Mar 27, 2018
Citation filed by a third party
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Mar 27, 2018
Citation filed by a third party
Search/Exam
Mar 27, 2018
Observations by third parties
Search/Exam
Aug 9, 2017
Notification of forthcoming publication
Search/Exam
Jul 6, 2017
Jul 6, 2017
Amended description with annotations
Search/Exam
Jul 6, 2017
Amendments received before examination
Search/Exam
Jun 14, 2017
Jun 12, 2017
Communication to designated inventor
Search/Exam
Jun 12, 2017
Communication to designated inventor
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Jun 12, 2017
Communication to designated inventor
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Jun 12, 2017
Communication to designated inventor
Search/Exam
Jun 12, 2017
Communication to designated inventor
Search/Exam
Jun 12, 2017
Communication to designated inventor
Search/Exam
May 26, 2017
(Electronic) Receipt
Search/Exam
May 26, 2017
Abstract
Search/Exam
May 26, 2017
May 26, 2017
Amended claims with annotations
Search/Exam
May 26, 2017
Claims
Search/Exam
May 26, 2017
Description
Search/Exam
May 26, 2017
Request for entry into the European phase
Search/Exam
May 15, 2017
May 15, 2017
Mar 10, 2017
Information on entry into European phase
Search/Exam
May 24, 2016
May 6, 2016
Copy of the international search report
Search/Exam
May 6, 2016
May 6, 2016
International publication pamphlet
Search/Exam