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The patent EP3490935 was granted to Institut National DE LA Recherche Scientifique on Jun 7, 2023. The application was filed on Jul 20, 2017 under application number EP17833138A. 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 |
|---|---|---|---|
| MINERAL CARBONATION | Mar 6, 2024 | HGF | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | CA2248474 |
| INTERNATIONAL-SEARCH-REPORT | CN101993098 |
| INTERNATIONAL-SEARCH-REPORT | GB560600 |
| INTERNATIONAL-SEARCH-REPORT | KR101049279B |
| INTERNATIONAL-SEARCH-REPORT | US2015030523 |
| INTERNATIONAL-SEARCH-REPORT | US2328286 |
| INTERNATIONAL-SEARCH-REPORT | US3402017 |
| INTERNATIONAL-SEARCH-REPORT | US4508690 |
| INTERNATIONAL-SEARCH-REPORT | US4720375 |
| INTERNATIONAL-SEARCH-REPORT | WO2015154196 |
| INTERNATIONAL-SEARCH-REPORT | WO8300142 |
| OPPOSITION | CA2248474 |
| OPPOSITION | GB560600 |
| OPPOSITION | WO2013131193 |
| OPPOSITION | WO2014009802 |
| OPPOSITION | WO8300142 |
| SEARCH | WO2007069902 |
| SEARCH | WO2010022468 |
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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Nov 12, 2025
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Means of redress
OPPO
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Non-public annex
OPPO
Jan 15, 2025
Dec 20, 2024
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Jun 20, 2023
May 11, 2023
Decision to grant a European patent
Search/Exam
Apr 3, 2023
(Electronic) Receipt
Search/Exam
Apr 3, 2023
Filing of the translations of the claims
Search/Exam
Apr 3, 2023
French translation of claims
Search/Exam
Apr 3, 2023
German translation of the claims
Search/Exam
Apr 3, 2023
Letter accompanying subsequently filed items
Search/Exam
Apr 3, 2023
Nov 22, 2022
Nov 22, 2022
Nov 22, 2022
Nov 22, 2022
Intention to grant (signatures)
Search/Exam
Nov 22, 2022
Text intended for grant (clean copy)
Search/Exam
Nov 22, 2022
Mar 3, 2022
(Electronic) Receipt
Search/Exam
Mar 3, 2022
Amended claims with annotations
Search/Exam
Mar 3, 2022
Claims
Search/Exam
Mar 3, 2022
Letter accompanying subsequently filed items
Search/Exam
Mar 3, 2022
Dec 21, 2021
Dec 16, 2021
(Electronic) Receipt
Search/Exam
Dec 16, 2021
Letter accompanying subsequently filed items
Search/Exam
Dec 16, 2021
Sep 9, 2021
Annex to the communication
Search/Exam
Sep 9, 2021
Communication from the Examining Division
Search/Exam
Sep 6, 2021
Examination started
Search/Exam
Sep 15, 2020
(Electronic) Receipt
Search/Exam
Sep 15, 2020
Amended claims with annotations
Search/Exam
Sep 15, 2020
Amendments received before examination
Search/Exam
Sep 15, 2020
Claims
Search/Exam
Sep 15, 2020
Letter accompanying subsequently filed items
Search/Exam
Mar 17, 2020
Feb 26, 2020
Feb 26, 2020
European search opinion
Search/Exam
Feb 26, 2020
Information on Search Strategy
Search/Exam
Feb 26, 2020
Supplementary European search report
Search/Exam
Feb 17, 2020
Search started
Search/Exam
Nov 22, 2019
Submission concerning representation
Search/Exam
May 8, 2019
Mar 26, 2019
(Electronic) Receipt
Search/Exam
Mar 26, 2019
Mar 26, 2019
Amended claims with annotations
Search/Exam
Mar 26, 2019
Amendments received before examination
Search/Exam
Mar 26, 2019
Letter accompanying subsequently filed items
Search/Exam
Mar 6, 2019
Mar 4, 2019
Communication to designated inventor
Search/Exam
Mar 4, 2019
Communication to designated inventor
Search/Exam
Mar 4, 2019
Communication to designated inventor
Search/Exam
Mar 4, 2019
Communication to designated inventor
Search/Exam
Mar 4, 2019
Communication to designated inventor
Search/Exam
Feb 15, 2019
Jan 30, 2019
(Electronic) Receipt
Search/Exam
Jan 30, 2019
Request for entry into the European phase
Search/Exam
Dec 5, 2018
Information on entry into European phase
Search/Exam
Feb 21, 2018
Feb 1, 2018
Copy of the international search report
Search/Exam
Feb 1, 2018
Published international application - A1
Search/Exam