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The patent EP3543310 was granted to The Chemours FC on Jul 3, 2024. The application was filed on Mar 3, 2006 under application number EP19171478A. 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 |
|---|---|---|---|
| DAIKIN INDUSTRIES | Aug 25, 2021 | HOFFMANN EITLE | WITHDRAWN |
| MEXICHEM FLUOR DE CV | Aug 23, 2021 | POTTER CLARKSON | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US20040910495 |
| DESCRIPTION | US20050062044 |
| DESCRIPTION | US5759430 |
| DESCRIPTION | USRE36951E |
| OPPOSITION | EP1985681 |
| OPPOSITION | JPH04110388 |
| OPPOSITION | US2004256594 |
| OPPOSITION | US6214624 |
| OPPOSITION | WO2004037913 |
| OPPOSITION | WO2005103187 |
| OPPOSITION | WO2005103190 |
| OPPOSITION | WO2005105947 |
| OPPOSITION | WO2005108523 |
| SEARCH | JPH04110388 |
| SEARCH | US2004127383 |
| SEARCH | US2004256594 |
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
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(Electronic) Receipt
Search/Exam
Oct 13, 2020
Filing of the translations of the claims
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French translation of claims
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German translation of the claims
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Letter accompanying subsequently filed items
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Intention to grant (signatures)
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Jul 6, 2020
Text intended for grant (clean copy)
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Examination started
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Amended description with annotations
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Oct 22, 2019
Refund of fees
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Notification of forthcoming publication
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European search opinion
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European search report
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Aug 26, 2019
Information on Search Strategy
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Search started
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Jun 24, 2019
Communication to designated inventor
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Abstract
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Claims
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Description
Search/Exam
Apr 29, 2019
Designation of inventor
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Apr 29, 2019
Matter concerning the application
Search/Exam
Apr 29, 2019
Request for grant of a European patent
Search/Exam
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