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The patent EP3607936 was granted to Mexichem Fluor DE CV on Nov 8, 2023. The application was filed on Sep 18, 2017 under application number EP19199780A. 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 |
|---|---|---|---|
| ELKINGTON AND FIFE | Aug 8, 2024 | ELKINGTON AND FIFE | ADMISSIBLE |
| HGF | Aug 8, 2024 | HGF | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | US6585958 |
| OPPOSITION | WO2005105043 |
| OPPOSITION | WO2010138862 |
| OPPOSITION | WO2011076843 |
| OPPOSITION | WO2012110770 |
| OPPOSITION | WO2012156711 |
| OPPOSITION | WO2013054135 |
| OPPOSITION | WO2014170689 |
| OPPOSITION | WO2014190204 |
| OPPOSITION | WO2015101576 |
| SEARCH | WO2012110770 |
| SEARCH | WO2012156711 |
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.
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Decision to grant a European patent
Search/Exam
Sep 25, 2023
(Electronic) Receipt
Search/Exam
Sep 25, 2023
French translation of claims
Search/Exam
Sep 25, 2023
German translation of the claims
Search/Exam
Sep 25, 2023
Letter accompanying subsequently filed items
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Intention to grant (signatures)
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Jun 13, 2023
Text intended for grant (clean copy)
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Jun 13, 2023
May 17, 2023
Annex to the communication
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May 17, 2023
Consultation by telephone/in person
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May 17, 2023
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(Electronic) Receipt
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May 2, 2023
Amended description with annotations
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May 2, 2023
Description
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May 2, 2023
Letter accompanying subsequently filed items
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May 2, 2023
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(Electronic) Receipt
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Mar 14, 2023
Letter accompanying subsequently filed items
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Mar 14, 2023
Dec 20, 2022
Document concerning representation
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Nov 10, 2022
Annex to the communication
Search/Exam
Nov 10, 2022
Communication from the Examining Division
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Oct 28, 2022
Examination started
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Aug 11, 2020
(Electronic) Receipt
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Aug 11, 2020
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Amended claims with annotations
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Aug 11, 2020
Amendments received before examination
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Aug 11, 2020
Letter accompanying subsequently filed items
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Feb 17, 2020
Jan 15, 2020
Notification of forthcoming publication
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Nov 25, 2019
Refund of fees
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Nov 19, 2019
Communication to designated inventor
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Nov 19, 2019
Communication to designated inventor
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Nov 18, 2019
Nov 18, 2019
European search opinion
Search/Exam
Nov 18, 2019
European search report
Search/Exam
Nov 18, 2019
Information on Search Strategy
Search/Exam
Oct 31, 2019
Search started
Search/Exam
Sep 26, 2019
Abstract
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Sep 26, 2019
Sep 26, 2019
Claims
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Sep 26, 2019
Description
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Sep 26, 2019
Designation of inventor
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Sep 26, 2019
Matter concerning the application
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Sep 26, 2019
Request for grant of a European patent
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Apr 9, 2018
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