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The patent EP3515451 was granted to Mexichem Fluor DE CV on Oct 4, 2023. The application was filed on Sep 18, 2017 under application number EP17777636A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 |
|---|---|---|---|
| BECK GREENER | Aug 4, 2021 | BECK GREENER | WITHDRAWN |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | WO2007121913 |
| INTERNATIONAL-SEARCH-REPORT | WO2012156711 |
| INTERNATIONAL-SEARCH-REPORT | WO2017093758 |
| OPPOSITION | WO2007121913 |
| OPPOSITION | WO2012156711 |
| OPPOSITION | WO2014170689 |
| OPPOSITION | WO2017093758 |
| OPPOSITION | WO9916422 |
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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Sep 7, 2023
Sep 1, 2023
Aug 24, 2023
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Feb 27, 2023
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Means of redress
OPPO
Feb 27, 2023
Feb 27, 2023
Dec 20, 2022
Jul 8, 2022
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Dec 15, 2021
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Oct 4, 2021
Sep 22, 2021
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General enquiry
OPPO
Sep 22, 2021
Sep 20, 2021
Sep 20, 2021
Sep 13, 2021
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Aug 18, 2021
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Aug 4, 2021
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Nov 16, 2020
Oct 8, 2020
Decision to grant a European patent
Search/Exam
Aug 13, 2020
(Electronic) Receipt
Search/Exam
Aug 13, 2020
Filing of the translations of the claims
Search/Exam
Aug 13, 2020
French translation of claims
Search/Exam
Aug 13, 2020
German translation of the claims
Search/Exam
Aug 13, 2020
Letter accompanying subsequently filed items
Search/Exam
Apr 14, 2020
Apr 14, 2020
Apr 14, 2020
Intention to grant (signatures)
Search/Exam
Apr 14, 2020
Text intended for grant (clean copy)
Search/Exam
Apr 14, 2020
Mar 31, 2020
Examination started
Search/Exam
Nov 6, 2019
(Electronic) Receipt
Search/Exam
Nov 6, 2019
Nov 6, 2019
Nov 6, 2019
Amended description with annotations
Search/Exam
Nov 6, 2019
Amendments received before examination
Search/Exam
Nov 6, 2019
Citation for the examination procedure
Search/Exam
Nov 6, 2019
Letter accompanying subsequently filed items
Search/Exam
Jul 3, 2019
Apr 29, 2019
Apr 26, 2019
Communication to designated inventor
Search/Exam
Apr 26, 2019
Communication to designated inventor
Search/Exam
Mar 26, 2019
Mar 26, 2019
Mar 12, 2019
(Electronic) Receipt
Search/Exam
Mar 12, 2019
Mar 12, 2019
Matter concerning the application
Search/Exam
Mar 12, 2019
Request for entry into the European phase
Search/Exam
Jan 25, 2019
Information on entry into European phase
Search/Exam
Dec 7, 2018
Dec 7, 2018
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Oct 30, 2018
Oct 23, 2018
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Oct 17, 2018
Oct 17, 2018
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Sep 14, 2018
Written opinion
PCT2
Sep 14, 2018
Sep 14, 2018
Aug 13, 2018
Notification of election of EPO
Search/Exam
Aug 3, 2018
Jul 24, 2018
Jul 16, 2018
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PCT demand form
PCT2
Jul 16, 2018
Jul 16, 2018
Jul 16, 2018
Jul 16, 2018
Jul 16, 2018
Apr 9, 2018
Apr 9, 2018
Mar 22, 2018
Copy of the international search report
Search/Exam
Mar 22, 2018
Published international application - A1
Search/Exam
Jan 2, 2018
ISR: cited documents
PCTISA
Dec 22, 2017
Dec 22, 2017
Dec 22, 2017
Oct 16, 2017
Sep 29, 2017
Abstract
PCTISA
Sep 29, 2017
Claims
PCTISA
Sep 29, 2017
Description
PCTISA
Sep 29, 2017
Sep 29, 2017
Sep 29, 2017
Sep 29, 2017
Sep 29, 2017
Sep 29, 2017
Sep 29, 2017
Sep 29, 2017