The patent EP3553119 was granted to The Chemours FC on Nov 25, 2020. The application was originally filed on Mar 3, 2006 under application number EP19177627A. 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.
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 | US2004256594 |
| OPPOSITION | US3723318 |
| OPPOSITION | WO2011144905 |
| SEARCH | US2004256594 |
| SEARCH | US3723318 |
NPL citations refer to non-patent references such as research papers, articles, or other publications cited during examination or opposition phases.
| Citation Phase | Reference Text |
|---|---|
| DESCRIPTION | - "Lubricants in Refrigeration Systems", ASHRAE Handbook, Refrigeration Systems and Applications, (19900000), pages 8.1 - 8.21 |
| DESCRIPTION | - SAUNDERSFRISCH, Polyurethanes Chemistry and Technology, John Wiley and Sons, (19620000), vol. I, II |
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Reply to appeal
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(Electronic) Receipt
Appeal
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Notice of appeal
Appeal
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Dec 7, 2020
Oct 29, 2020
Decision to grant a European patent
Search/Exam
Oct 13, 2020
(Electronic) Receipt
Search/Exam
Oct 13, 2020
Filing of the translations of the claims
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Oct 13, 2020
French translation of claims
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Oct 13, 2020
German translation of the claims
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Oct 13, 2020
Letter accompanying subsequently filed items
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Jul 6, 2020
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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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Jul 6, 2020
Jun 5, 2020
Examination started
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Feb 20, 2020
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Amended description with annotations
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Feb 20, 2020
Amendments received before examination
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Oct 21, 2019
Sep 18, 2019
Notification of forthcoming publication
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Sep 16, 2019
Refund of fees
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Aug 30, 2019
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European search opinion
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Aug 30, 2019
European search report
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Aug 30, 2019
Information on Search Strategy
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Aug 22, 2019
Search started
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Jul 24, 2019
Communication to designated inventor
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May 31, 2019
Abstract
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May 31, 2019
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Claims
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May 31, 2019
Description
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May 31, 2019
Designation of inventor
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May 31, 2019
Matter concerning the application
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May 31, 2019
Request for grant of a European patent
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Sep 27, 2006
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