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The patent EP3445826 was granted to Flint Group Germany on Jul 14, 2021. The application was filed on Apr 21, 2017 under application number EP17718099A. 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 |
|---|---|---|---|
| SUN CHEMICAL | Apr 14, 2022 | CARPMAELS & RANSFORD | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | WO2009060235 |
| DESCRIPTION | WO2010124950 |
| DESCRIPTION | WO2015036613 |
| INTERNATIONAL-SEARCH-REPORT | WO2013082262 |
| INTERNATIONAL-SEARCH-REPORT | WO2015023428 |
| OPPOSITION | EP3000853 |
| OPPOSITION | US2015203696 |
| OPPOSITION | US9266987 |
| OPPOSITION | WO2013082262 |
| OPPOSITION | WO2015023428 |
| OPPOSITION | WO2017182638 |
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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Feb 12, 2024
Feb 12, 2024
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Means of redress
OPPO
Nov 6, 2023
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Apr 14, 2022
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Apr 14, 2022
Apr 14, 2022
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Apr 14, 2022
Apr 14, 2022
Apr 14, 2022
Feb 4, 2022
Jan 26, 2022
(Electronic) Receipt
Search/Exam
Jan 26, 2022
Annexes in respect of a client data request
Search/Exam
Jan 26, 2022
Letter accompanying subsequently filed items
Search/Exam
Jan 26, 2022
Jul 27, 2021
Jun 17, 2021
Decision to grant a European patent
Search/Exam
Jun 3, 2021
(Electronic) Receipt
Search/Exam
Jun 3, 2021
Filing of the translations of the claims
Search/Exam
Jun 3, 2021
French translation of claims
Search/Exam
Jun 3, 2021
German translation of the claims
Search/Exam
Mar 10, 2021
Mar 10, 2021
Mar 10, 2021
Text intended for grant (clean copy)
Search/Exam
Mar 10, 2021
Mar 9, 2021
Intention to grant (signatures)
Search/Exam
Jun 10, 2020
May 29, 2020
Apr 29, 2020
(Electronic) Receipt
Search/Exam
Apr 29, 2020
Amended claims with annotations
Search/Exam
Apr 29, 2020
Amended description with annotations
Search/Exam
Apr 29, 2020
Claims
Search/Exam
Apr 29, 2020
Description
Search/Exam
Apr 29, 2020
Letter accompanying subsequently filed items
Search/Exam
Apr 29, 2020
Mar 27, 2020
Mar 23, 2020
Nov 13, 2019
Annex to the communication
Search/Exam
Nov 13, 2019
Communication from the Examining Division
Search/Exam
Nov 5, 2019
Examination started
Search/Exam
Jan 30, 2019
Dec 28, 2018
Submission concerning representation
Search/Exam
Dec 21, 2018
Submission concerning representation
Search/Exam
Dec 6, 2018
Dec 4, 2018
Communication to designated inventor
Search/Exam
Dec 4, 2018
Communication to designated inventor
Search/Exam
Dec 4, 2018
Communication to designated inventor
Search/Exam
Dec 4, 2018
Communication to designated inventor
Search/Exam
Nov 29, 2018
Priority search results copy provided by EPO
Search/Exam
Nov 20, 2018
(Electronic) Receipt
Search/Exam
Nov 20, 2018
Request for entry into the European phase
Search/Exam
Oct 30, 2018
Oct 30, 2018
Oct 16, 2018
Oct 16, 2018
Oct 16, 2018
Oct 16, 2018
Oct 16, 2018
Notification of the recording of a change
Search/Exam
Oct 16, 2018
Notification of the recording of a change
Search/Exam
Aug 31, 2018
Information on entry into European phase
Search/Exam
Jul 11, 2018
Jul 11, 2018
Jul 11, 2018
Jul 11, 2018
Jul 11, 2018
Jul 9, 2018
Jul 9, 2018
Jul 9, 2018
Jul 9, 2018
Jul 9, 2018
Jul 9, 2018
Jul 9, 2018
Notification of the recording of a change
Search/Exam
Jul 9, 2018
Notification of the recording of a change
Search/Exam
Jun 18, 2018
Jun 18, 2018
Jun 18, 2018
Apr 18, 2018
Written opinion
PCT2
Apr 18, 2018
Apr 18, 2018
Mar 20, 2018
Notification of election of EPO
Search/Exam
Feb 27, 2018
Feb 21, 2018
Feb 21, 2018
PCT demand form
PCT2
Feb 21, 2018
Feb 21, 2018
Feb 21, 2018
Feb 21, 2018
Nov 13, 2017
Oct 26, 2017
Copy of the international search report
Search/Exam
Oct 26, 2017
Published international application - A1
Search/Exam
Jun 9, 2017
Jun 9, 2017
Jun 9, 2017
May 3, 2017
Apr 21, 2017
(Electronic) Receipt
PCTRO
Apr 21, 2017
Abstract
PCTRO
Apr 21, 2017
Claims
PCTRO
Apr 21, 2017
Description
PCTRO
Apr 21, 2017
Apr 21, 2017
Apr 21, 2017