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The patent EP3159328 was granted to Mexichem Fluor DE CV on May 16, 2018. The application was filed on Oct 8, 2010 under application number EP16205166A. 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 |
|---|---|---|---|
| THE CHEMOURS FC | Feb 15, 2019 | HEINEMANN | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | EP0822170 |
| OPPOSITION | JP2006156539 |
| OPPOSITION | US6274782 |
| OPPOSITION | WO0183411 |
| OPPOSITION | WO2007144632 |
| OPPOSITION | WO2008001844 |
| OPPOSITION | WO2010001025 |
| SEARCH | US2003157009 |
| SEARCH | US2917556 |
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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Mar 6, 2023
Advice of delivery
Appeal
Mar 6, 2023
Mar 2, 2023
Mar 2, 2023
Mar 2, 2023
Dec 20, 2022
Document concerning representation
Search/Exam
Dec 5, 2022
Dec 5, 2022
Dec 5, 2022
Nov 2, 2022
Advice of delivery
Appeal
Nov 2, 2022
Oct 27, 2022
Oct 27, 2022
Oct 27, 2022
Oct 27, 2022
Oct 26, 2022
Oct 25, 2022
Oct 24, 2022
(Electronic) Receipt
Appeal
Oct 24, 2022
Oct 24, 2022
Aug 25, 2022
Aug 25, 2022
Apr 28, 2022
Apr 21, 2022
(Electronic) Receipt
Appeal
Apr 21, 2022
Apr 21, 2022
Apr 21, 2022
Apr 14, 2022
Advice of delivery
Appeal
Apr 13, 2022
Mar 10, 2022
Mar 10, 2022
Mar 7, 2022
Jan 21, 2022
Jan 17, 2022
(Electronic) Receipt
Appeal
Jan 17, 2022
Jan 17, 2022
Nov 15, 2021
Nov 9, 2021
(Electronic) Receipt
Appeal
Nov 9, 2021
Nov 9, 2021
Nov 9, 2021
May 7, 2021
Feb 26, 2021
Feb 23, 2021
(Electronic) Receipt
Appeal
Feb 23, 2021
Feb 23, 2021
Feb 23, 2021
Claims
Appeal
Feb 23, 2021
Feb 23, 2021
Reply to appeal
Appeal
Nov 2, 2020
Oct 27, 2020
(Electronic) Receipt
Appeal
Oct 27, 2020
Oct 27, 2020
Oct 27, 2020
Oct 27, 2020
Sep 2, 2020
Sep 2, 2020
Aug 21, 2020
(Electronic) Receipt
Appeal
Aug 21, 2020
Aug 21, 2020
Notice of appeal
Appeal
Jul 1, 2020
Jul 1, 2020
Jun 25, 2020
Jun 25, 2020
Jun 25, 2020
Jun 25, 2020
Jun 25, 2020
Jun 25, 2020
Jun 25, 2020
Means of redress
OPPO
Jun 8, 2020
Jun 4, 2020
Jun 4, 2020
May 27, 2020
May 19, 2020
May 19, 2020
May 19, 2020
Apr 30, 2020
Apr 30, 2020
Apr 24, 2020
Apr 24, 2020
Apr 24, 2020
Apr 24, 2020
Apr 24, 2020
Apr 24, 2020
Nov 12, 2019
Nov 12, 2019
Nov 11, 2019
Nov 6, 2019
Nov 6, 2019
Nov 6, 2019
Nov 6, 2019
Nov 6, 2019
Nov 6, 2019
Jul 1, 2019
Jun 25, 2019
Jun 25, 2019
Jun 25, 2019
Jun 25, 2019
Jun 25, 2019
Claims
OPPO
Jun 25, 2019
Claims
OPPO
Jun 25, 2019
Claims
OPPO
Jun 25, 2019
Jun 25, 2019
Mar 1, 2019
Mar 1, 2019
Feb 27, 2019
Feb 15, 2019
Feb 15, 2019
Feb 15, 2019
Feb 15, 2019
Feb 15, 2019
Feb 15, 2019
Feb 15, 2019
Feb 15, 2019
Feb 15, 2019
Feb 15, 2019
Feb 15, 2019
Feb 15, 2019
Feb 15, 2019
Feb 15, 2019
Dec 14, 2018
Submission concerning representation
Search/Exam
May 30, 2018
Apr 19, 2018
Decision to grant a European patent
Search/Exam
Apr 9, 2018
Apr 9, 2018
Apr 9, 2018
Intention to grant (signatures)
Search/Exam
Apr 9, 2018
Text intended for grant (clean copy)
Search/Exam
Apr 9, 2018
Apr 3, 2018
Mar 22, 2018
Mar 21, 2018
(Electronic) Receipt
Search/Exam
Mar 21, 2018
Amended description with annotations
Search/Exam
Mar 21, 2018
Description
Search/Exam
Mar 21, 2018
French translation of claims
Search/Exam
Mar 21, 2018
German translation of the claims
Search/Exam
Mar 21, 2018
Letter accompanying subsequently filed items
Search/Exam
Mar 21, 2018
Nov 22, 2017
Nov 22, 2017
Nov 22, 2017
Intention to grant (signatures)
Search/Exam
Nov 22, 2017
Text intended for grant (clean copy)
Search/Exam
Nov 22, 2017
Jul 20, 2017
(Electronic) Receipt
Search/Exam
Jul 20, 2017
Amended claims with annotations
Search/Exam
Jul 20, 2017
Claims
Search/Exam
Jul 20, 2017
Description
Search/Exam
Jul 20, 2017
Description
Search/Exam
Jul 20, 2017
Letter accompanying subsequently filed items
Search/Exam
Jul 20, 2017
May 17, 2017
Annex to the communication
Search/Exam
May 17, 2017
Communication from the Examining Division
Search/Exam
May 3, 2017
Mar 29, 2017
Mar 29, 2017
European search report
Search/Exam
Mar 29, 2017
Information on Search Strategy
Search/Exam
Mar 29, 2017
Notification of forthcoming publication
Search/Exam
Mar 13, 2017
Search started
Search/Exam
Feb 10, 2017
Communication to designated inventor
Search/Exam
Feb 10, 2017
Communication to designated inventor
Search/Exam
Feb 10, 2017
Communication to designated inventor
Search/Exam
Dec 19, 2016
Abstract
Search/Exam
Dec 19, 2016
Dec 19, 2016
Claims
Search/Exam
Dec 19, 2016
Description
Search/Exam
Dec 19, 2016
Designation of inventor
Search/Exam
Dec 19, 2016
Matter concerning the application
Search/Exam
Dec 19, 2016
Request for grant of a European patent
Search/Exam
May 11, 2011