The weekly litigation news digest is live. Subscribe now
The patent EP3461871 was granted to The Chemours FC on Jan 20, 2021. The application was filed on Mar 3, 2006 under application number EP18202654A. 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 |
|---|---|---|---|
| SUZUKI MOTOR | Aug 30, 2022 | AUGUST DEBOUZY | INTERVENTION ADMISSIBLE |
| SUZUKI FRANCE | Jun 3, 2022 | AUGUST DEBOUZY | INTERVENTION ADMISSIBLE |
| AGC | Oct 20, 2021 | MULLER BORE & PARTNER PATENTANWALTE PARTG MBB | ADMISSIBLE |
| DAIKIN INDUSTRIES | Oct 20, 2021 | HOFFMANN EITLE | WITHDRAWN |
| MEXICHEM FLUOR DE CV | Oct 19, 2021 | POTTER CLARKSON | WITHDRAWN |
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 | EP1743010 |
| OPPOSITION | JPH04110388 |
| OPPOSITION | US2004089839 |
| OPPOSITION | US2004256594 |
| OPPOSITION | US2005151113 |
| OPPOSITION | US2005230657 |
| OPPOSITION | WO2005083027 |
| OPPOSITION | WO2005105947 |
| OPPOSITION | WO2005108334 |
| OPPOSITION | WO2005108523 |
| OTHER | WO2004037913 |
| SEARCH | US2004119047 |
| SEARCH | US2004256594 |
| SEARCH | US6124510 |
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
Get instant alerts for new documents
Dec 8, 2025
Dec 8, 2025
Dec 8, 2025
Dec 8, 2025
Nov 27, 2025
Nov 27, 2025
Nov 27, 2025
Nov 27, 2025
Nov 20, 2025
(Electronic) Receipt
Appeal
Nov 20, 2025
(Electronic) Receipt
Appeal
Nov 20, 2025
Nov 20, 2025
Nov 20, 2025
Nov 20, 2025
Nov 20, 2025
Nov 20, 2025
Oct 24, 2025
Oct 24, 2025
Oct 23, 2025
Oct 23, 2025
Oct 23, 2025
Oct 23, 2025
Oct 22, 2025
Oct 22, 2025
Oct 20, 2025
(Electronic) Receipt
Appeal
Oct 20, 2025
Oct 20, 2025
Reply to appeal
Appeal
Oct 17, 2025
(Electronic) Receipt
Appeal
Oct 17, 2025
(Electronic) Receipt
Appeal
Oct 17, 2025
(Electronic) Receipt
Appeal
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Reply to appeal
Appeal
Oct 17, 2025
Reply to appeal
Appeal
Oct 17, 2025
Reply to appeal
Appeal
Jul 23, 2025
Jul 23, 2025
Jul 23, 2025
Jun 20, 2025
Jun 20, 2025
Jun 20, 2025
Jun 20, 2025
Jun 20, 2025
Jun 20, 2025
Jun 13, 2025
(Electronic) Receipt
Appeal
Jun 13, 2025
(Electronic) Receipt
Appeal
Jun 13, 2025
Jun 13, 2025
Jun 13, 2025
Jun 13, 2025
Jun 13, 2025
Jun 13, 2025
Jun 13, 2025
Jun 13, 2025
Jun 13, 2025
Jun 13, 2025
Jun 13, 2025
Jun 13, 2025
Jun 13, 2025
Jun 13, 2025
Claims
Appeal
Jun 13, 2025
Claims
Appeal
Jun 13, 2025
Claims
Appeal
Jun 13, 2025
Claims
Appeal
Jun 13, 2025
Claims
Appeal
Jun 13, 2025
Claims
Appeal
Jun 13, 2025
Claims
Appeal
Jun 13, 2025
Claims
Appeal
Jun 13, 2025
Claims
Appeal
Jun 13, 2025
Claims
Appeal
Jun 13, 2025
Claims
Appeal
Jun 13, 2025
Claims
Appeal
Jun 13, 2025
Jun 13, 2025
Jun 13, 2025
Jun 13, 2025
Jun 12, 2025
(Electronic) Receipt
Appeal
Jun 12, 2025
Jun 12, 2025
Jun 12, 2025
Jun 12, 2025
Mar 28, 2025
(Electronic) Receipt
Appeal
Mar 28, 2025
Mar 28, 2025
Mar 26, 2025
(Electronic) Receipt
Appeal
Mar 26, 2025
Mar 18, 2025
Mar 18, 2025
Mar 18, 2025
Mar 18, 2025
Mar 17, 2025
Mar 17, 2025
Mar 17, 2025
Mar 13, 2025
Feb 18, 2025
Feb 18, 2025
Feb 18, 2025
Feb 18, 2025
Feb 18, 2025
Feb 18, 2025
Feb 18, 2025
Feb 18, 2025
Feb 18, 2025
Feb 14, 2025
Feb 14, 2025
Feb 14, 2025
Feb 14, 2025
Feb 13, 2025
Feb 13, 2025
Feb 13, 2025
Feb 13, 2025
Feb 13, 2025
Feb 13, 2025
Feb 13, 2025
Feb 13, 2025
Feb 13, 2025
Feb 13, 2025
Feb 13, 2025
Feb 13, 2025
Feb 13, 2025
Means of redress
OPPO
Feb 13, 2025
Feb 13, 2025
Feb 13, 2025
Feb 13, 2025
Feb 13, 2025
Feb 13, 2025
Feb 13, 2025
Feb 13, 2025
Feb 13, 2025
Feb 13, 2025
Feb 13, 2025
Feb 13, 2025
Feb 13, 2025
Feb 13, 2025
Feb 13, 2025
Feb 13, 2025
Feb 13, 2025
Feb 13, 2025
Feb 13, 2025
Feb 11, 2025
Feb 7, 2025
(Electronic) Receipt
Appeal
Feb 7, 2025
(Electronic) Receipt
Appeal
Feb 7, 2025
Notice of appeal
Appeal
Feb 7, 2025
Notice of appeal
Appeal
Feb 7, 2025
Feb 7, 2025
Dec 2, 2024
Dec 2, 2024
Dec 2, 2024
Nov 26, 2024
(Electronic) Receipt
Appeal
Nov 26, 2024
Notice of appeal
Appeal
Nov 20, 2024
Nov 18, 2024
Nov 18, 2024
Nov 18, 2024
Nov 15, 2024
Nov 15, 2024
Nov 15, 2024
Nov 15, 2024
Nov 15, 2024
Nov 15, 2024
Nov 15, 2024
Nov 15, 2024
Nov 14, 2024
Nov 14, 2024
Nov 14, 2024
Nov 14, 2024
Oct 31, 2024
Oct 31, 2024
Oct 31, 2024
Oct 30, 2024
Oct 30, 2024
Oct 30, 2024
Oct 30, 2024
Oct 23, 2024
Oct 23, 2024
Oct 23, 2024
Oct 23, 2024
Oct 23, 2024
Oct 21, 2024
Authorisation
OPPO
Oct 21, 2024
Oct 18, 2024
Oct 18, 2024
Oct 18, 2024
Oct 18, 2024
Oct 18, 2024
Oct 18, 2024
Oct 18, 2024
Oct 18, 2024
Oct 18, 2024
Oct 18, 2024
Oct 18, 2024
Sep 25, 2024
Sep 25, 2024
Sep 24, 2024
Sep 24, 2024
Sep 24, 2024
Sep 24, 2024
Sep 24, 2024
Sep 24, 2024
Sep 23, 2024
Sep 23, 2024
Sep 23, 2024
Sep 23, 2024
Sep 23, 2024
Sep 23, 2024
Sep 23, 2024
Sep 19, 2024
Sep 19, 2024
Sep 19, 2024
Sep 19, 2024
Sep 19, 2024
Sep 19, 2024
Sep 19, 2024
Sep 19, 2024
Sep 19, 2024
Sep 19, 2024
Sep 19, 2024
Sep 19, 2024
Sep 19, 2024
Sep 19, 2024
Sep 19, 2024
Sep 19, 2024
Sep 19, 2024
Sep 19, 2024
Sep 19, 2024
Sep 19, 2024
Sep 19, 2024
Sep 19, 2024
Sep 18, 2024
Sep 18, 2024
Sep 18, 2024
Sep 18, 2024
Sep 18, 2024
Sep 18, 2024
Sep 18, 2024
Sep 18, 2024
Sep 17, 2024
Sep 17, 2024
Sep 17, 2024
Sep 17, 2024
Sep 17, 2024
Sep 17, 2024
Sep 17, 2024
Sep 17, 2024
Sep 17, 2024
Sep 17, 2024
Sep 17, 2024
Sep 17, 2024
Sep 6, 2024
Sep 6, 2024
Sep 6, 2024
Sep 5, 2024
Sep 5, 2024
Sep 5, 2024
Sep 5, 2024
May 23, 2024
May 23, 2024
May 23, 2024
May 23, 2024
May 23, 2024
May 23, 2024
May 23, 2024
May 23, 2024
May 23, 2024
May 23, 2024
May 23, 2024
May 23, 2024
Mar 15, 2024
Mar 15, 2024
Mar 15, 2024
Mar 15, 2024
Mar 14, 2024
Mar 14, 2024
Mar 14, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 23, 2024
Feb 23, 2024
Feb 23, 2024
Feb 22, 2024
Feb 22, 2024
Feb 22, 2024
Feb 20, 2024
Feb 20, 2024
Feb 20, 2024
Jan 29, 2024
Jan 29, 2024
Jan 29, 2024
Jan 29, 2024
Jan 25, 2024
Jan 25, 2024
Jan 25, 2024
Jan 25, 2024
Jan 25, 2024
Jan 25, 2024
Jan 25, 2024
Jan 25, 2024
Jan 25, 2024
Jan 25, 2024
Jan 25, 2024
Jan 25, 2024
Jan 25, 2024
Jan 25, 2024
Jan 24, 2024
Jan 24, 2024
Jan 24, 2024
Jan 24, 2024
Jan 24, 2024
Jan 24, 2024
Jan 19, 2024
Jan 19, 2024
Jan 19, 2024
Jan 19, 2024
Jan 10, 2024
Oct 31, 2023
Oct 31, 2023
Oct 30, 2023
Sep 21, 2023
Sep 21, 2023
Sep 21, 2023
Sep 21, 2023
Sep 21, 2023
Sep 14, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Aug 14, 2023
Aug 14, 2023
Aug 14, 2023
Aug 14, 2023
Aug 11, 2023
Aug 11, 2023
Aug 11, 2023
Aug 11, 2023
Aug 8, 2023
Aug 8, 2023
Aug 8, 2023
Aug 8, 2023
Aug 8, 2023
Aug 8, 2023
Aug 8, 2023
Aug 8, 2023
Aug 8, 2023
Aug 8, 2023
Aug 8, 2023
Aug 8, 2023
Aug 8, 2023
Aug 8, 2023
Aug 8, 2023
May 24, 2023
Apr 25, 2023
Apr 25, 2023
Apr 25, 2023
Apr 25, 2023
Apr 18, 2023
Apr 18, 2023
Apr 18, 2023
Apr 18, 2023
Jan 25, 2023
Jan 25, 2023
Jan 25, 2023
Jan 17, 2023
Jan 17, 2023
Jan 17, 2023
Jan 17, 2023
Jan 17, 2023
Jan 17, 2023
Jan 17, 2023
Jan 17, 2023
Jan 9, 2023
Jan 9, 2023
Jan 9, 2023
Jan 9, 2023
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 20, 2022
Dec 15, 2022
Dec 15, 2022
Dec 15, 2022
Dec 15, 2022
Dec 15, 2022
Dec 15, 2022
Dec 15, 2022
Dec 8, 2022
Dec 8, 2022
Dec 8, 2022
Dec 8, 2022
Dec 1, 2022
Dec 1, 2022
Dec 1, 2022
Dec 1, 2022
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Sep 8, 2022
Sep 8, 2022
Sep 8, 2022
Sep 8, 2022
Sep 8, 2022
Aug 30, 2022
Aug 30, 2022
Aug 30, 2022
Aug 30, 2022
Aug 30, 2022
Aug 30, 2022
Aug 30, 2022
Aug 30, 2022
Aug 30, 2022
Aug 30, 2022
Aug 30, 2022
Aug 30, 2022
Aug 30, 2022
Jun 28, 2022
Jun 24, 2022
Jun 24, 2022
Jun 24, 2022
Jun 23, 2022
Jun 22, 2022
Jun 22, 2022
Jun 22, 2022
Jun 22, 2022
Jun 22, 2022
Jun 22, 2022
Jun 22, 2022
Jun 22, 2022
Jun 22, 2022
Jun 22, 2022
Jun 22, 2022
Jun 22, 2022
Jun 22, 2022
Jun 22, 2022
Jun 22, 2022
Jun 17, 2022
Jun 17, 2022
Jun 17, 2022
Jun 17, 2022
Jun 3, 2022
Jun 3, 2022
Jun 3, 2022
Jun 3, 2022
Jun 3, 2022
Jun 3, 2022
Jun 3, 2022
Jun 3, 2022
Jun 3, 2022
Mar 15, 2022
Mar 15, 2022
Mar 15, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Nov 4, 2021
Nov 4, 2021
Nov 4, 2021
Nov 4, 2021
Oct 26, 2021
Oct 26, 2021
Oct 25, 2021
Oct 20, 2021
Oct 20, 2021
Oct 20, 2021
Oct 20, 2021
Oct 20, 2021
Oct 20, 2021
Oct 20, 2021
Oct 20, 2021
Oct 20, 2021
Oct 20, 2021
Oct 20, 2021
Oct 20, 2021
Oct 20, 2021
Oct 20, 2021
Oct 20, 2021
Oct 20, 2021
Oct 20, 2021
Oct 20, 2021
Oct 19, 2021
Oct 19, 2021
Oct 19, 2021
Oct 19, 2021
Oct 19, 2021
Oct 19, 2021
Oct 19, 2021
Oct 19, 2021
Oct 19, 2021
Oct 19, 2021
Oct 19, 2021
Oct 19, 2021
Oct 19, 2021
Oct 19, 2021
Oct 19, 2021
Feb 1, 2021
Jan 19, 2021
Priority document
Search/Exam
Jan 11, 2021
Decision to grant a European patent
Search/Exam
Dec 15, 2020
(Electronic) Receipt
Search/Exam
Dec 15, 2020
Filing of the translations of the claims
Search/Exam
Dec 15, 2020
French translation of claims
Search/Exam
Dec 15, 2020
German translation of the claims
Search/Exam
Dec 15, 2020
Letter accompanying subsequently filed items
Search/Exam
Dec 9, 2020
Dec 8, 2020
Dec 3, 2020
Observations by third parties
Search/Exam
Sep 21, 2020
Sep 21, 2020
Sep 21, 2020
Intention to grant (signatures)
Search/Exam
Sep 21, 2020
Text intended for grant (clean copy)
Search/Exam
Sep 21, 2020
Mar 17, 2020
(Electronic) Receipt
Search/Exam
Mar 17, 2020
Amended description with annotations
Search/Exam
Mar 17, 2020
Description
Search/Exam
Mar 17, 2020
Letter accompanying subsequently filed items
Search/Exam
Mar 17, 2020
Feb 12, 2020
Annex to the communication
Search/Exam
Feb 12, 2020
Communication from the Examining Division
Search/Exam
Feb 5, 2020
Examination started
Search/Exam
Aug 12, 2019
Aug 12, 2019
Amended claims with annotations
Search/Exam
Aug 12, 2019
Amendments received before examination
Search/Exam
Apr 8, 2019
Mar 6, 2019
Notification of forthcoming publication
Search/Exam
Feb 14, 2019
Feb 14, 2019
European search opinion
Search/Exam
Feb 14, 2019
European search report
Search/Exam
Feb 14, 2019
Information on Search Strategy
Search/Exam
Jan 31, 2019
Search started
Search/Exam
Dec 18, 2018
Communication to designated inventor
Search/Exam
Oct 25, 2018
Abstract
Search/Exam
Oct 25, 2018
Oct 25, 2018
Annex
Search/Exam
Oct 25, 2018
Claims
Search/Exam
Oct 25, 2018
Description
Search/Exam
Oct 25, 2018
Designation of inventor
Search/Exam
Oct 25, 2018
Request for grant of a European patent
Search/Exam
Sep 27, 2006
Sep 27, 2006
Sep 27, 2006