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The patent EP3684786 was granted to Centre National DE LA Recherche Scientifique Cnrs on Aug 14, 2024. The application was filed on Sep 24, 2018 under application number EP18773448A. 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 |
|---|---|---|---|
| BOULT WADE TENNANT | May 14, 2025 | BOULT WADE TENNANT | ADMISSIBLE |
| DORRIES | May 14, 2025 | DORRIES | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | US2008124357 |
| INTERNATIONAL-SEARCH-REPORT | WO0119380 |
| OPPOSITION | US2008124357 |
| OPPOSITION | WO0119380 |
| OPPOSITION | WO2010040023 |
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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Authorisation
OPPO
Sep 2, 2025
Authorisation
OPPO
Sep 2, 2025
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Aug 27, 2024
Jul 18, 2024
Decision to grant a European patent
Search/Exam
Jul 4, 2024
(Electronic) Receipt
Search/Exam
Jul 4, 2024
Filing of the translations of the claims
Search/Exam
Jul 4, 2024
Letter accompanying subsequently filed items
Search/Exam
Mar 15, 2024
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Intention to grant (signatures)
Search/Exam
Mar 15, 2024
Text intended for grant (clean copy)
Search/Exam
Mar 15, 2024
Feb 29, 2024
(Electronic) Receipt
Search/Exam
Feb 29, 2024
Amended claims with annotations
Search/Exam
Feb 29, 2024
Amended description with annotations
Search/Exam
Feb 29, 2024
Claims
Search/Exam
Feb 29, 2024
Description
Search/Exam
Feb 29, 2024
French translation of claims
Search/Exam
Feb 29, 2024
German translation of the claims
Search/Exam
Feb 29, 2024
Letter accompanying subsequently filed items
Search/Exam
Feb 29, 2024
Dec 21, 2023
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Intention to grant (signatures)
Search/Exam
Dec 21, 2023
Text intended for grant (clean copy)
Search/Exam
Dec 21, 2023
Oct 13, 2023
(Electronic) Receipt
Search/Exam
Oct 13, 2023
Amended claims with annotations
Search/Exam
Oct 13, 2023
Amended description with annotations
Search/Exam
Oct 13, 2023
Annex to the communication
Search/Exam
Oct 13, 2023
Claims
Search/Exam
Oct 13, 2023
Consultation by telephone/in person
Search/Exam
Oct 13, 2023
Description
Search/Exam
Oct 13, 2023
Letter accompanying subsequently filed items
Search/Exam
Oct 13, 2023
Oct 13, 2023
Aug 25, 2023
Annex to the communication
Search/Exam
Aug 25, 2023
Communication from the Examining Division
Search/Exam
Aug 24, 2023
Aug 24, 2023
Aug 18, 2023
(Electronic) Receipt
Search/Exam
Aug 18, 2023
Letter accompanying subsequently filed items
Search/Exam
Aug 18, 2023
Jul 28, 2023
Examination started
Search/Exam
Jan 24, 2022
Dec 14, 2021
(Electronic) Receipt
Search/Exam
Dec 14, 2021
Annexes in respect of a client data request
Search/Exam
Dec 14, 2021
Letter accompanying subsequently filed items
Search/Exam
Dec 14, 2021
Nov 6, 2020
(Electronic) Receipt
Search/Exam
Nov 6, 2020
Nov 6, 2020
Amended claims with annotations
Search/Exam
Nov 6, 2020
Amendments received before examination
Search/Exam
Nov 6, 2020
Letter accompanying subsequently filed items
Search/Exam
Nov 6, 2020
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Aug 25, 2020
Payment submission rejected
Search/Exam
Jul 1, 2020
Jun 26, 2020
Jun 23, 2020
Letter which had not been notified
Search/Exam
Jun 3, 2020
May 27, 2020
Letter which had not been notified
Search/Exam
May 7, 2020
May 4, 2020
Communication to designated inventor
Search/Exam
May 4, 2020
Communication to designated inventor
Search/Exam
May 4, 2020
Communication to designated inventor
Search/Exam
May 4, 2020
Communication to designated inventor
Search/Exam
May 4, 2020
Communication to designated inventor
Search/Exam
Apr 28, 2020
Priority search results copy provided by EPO
Search/Exam
Apr 21, 2020
(Electronic) Receipt
Search/Exam
Apr 21, 2020
Request for entry into the European phase
Search/Exam
Apr 9, 2020
Jan 31, 2020
Information on entry into European phase
Search/Exam
Apr 16, 2019
Mar 28, 2019
Converted Sequence Listing
Search/Exam
Mar 28, 2019
Copy of the international search report
Search/Exam
Mar 28, 2019
Published international application - A1
Search/Exam
Nov 28, 2018
ISR: cited documents
PCTISA
Nov 27, 2018
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(Electronic) Receipt
PCTRO
Oct 23, 2018
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(Electronic) Receipt
PCTRO
Sep 24, 2018
Abstract
PCTRO
Sep 24, 2018
Claims
PCTRO
Sep 24, 2018
Description
PCTRO
Sep 24, 2018
Sep 24, 2018
Drawings
PCTRO
Sep 24, 2018
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