The weekly litigation news digest is live. Subscribe now
The patent EP3438275 was granted to Meijo University on Apr 24, 2024. The application was filed on Mar 31, 2016 under application number EP16896959A. 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 |
|---|---|---|---|
| BIOMERIEUX | Jan 24, 2025 | WALL | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | JP2013508675 |
| INTERNATIONAL-SEARCH-REPORT | JP2015184020 |
| INTERNATIONAL-SEARCH-REPORT | JP2015521035 |
| INTERNATIONAL-SEARCH-REPORT | US2004234952 |
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 17, 2025
Dec 17, 2025
Dec 17, 2025
Dec 17, 2025
Dec 17, 2025
Sep 30, 2025
Sep 30, 2025
Sep 30, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Sep 24, 2025
Sep 19, 2025
Sep 19, 2025
Sep 19, 2025
Sep 19, 2025
Sep 18, 2025
Sep 18, 2025
Sep 18, 2025
Sep 18, 2025
Sep 18, 2025
Jun 11, 2025
Jun 5, 2025
Jun 5, 2025
Jun 5, 2025
Jun 5, 2025
Jun 5, 2025
Jun 5, 2025
Jun 5, 2025
Jun 5, 2025
Jun 5, 2025
Jun 5, 2025
Jun 5, 2025
Jun 5, 2025
Jun 5, 2025
May 12, 2025
May 12, 2025
May 12, 2025
May 8, 2025
May 8, 2025
May 8, 2025
Apr 30, 2025
Apr 30, 2025
Apr 30, 2025
Feb 5, 2025
Feb 5, 2025
Jan 29, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
Jan 24, 2025
May 8, 2024
Mar 28, 2024
Decision to grant a European patent
Search/Exam
Feb 29, 2024
Feb 22, 2024
(Electronic) Receipt
Search/Exam
Feb 22, 2024
Filing of the translations of the claims
Search/Exam
Feb 22, 2024
French translation of claims
Search/Exam
Feb 22, 2024
German translation of the claims
Search/Exam
Feb 22, 2024
Letter accompanying subsequently filed items
Search/Exam
Oct 19, 2023
Oct 19, 2023
Oct 19, 2023
Oct 19, 2023
Intention to grant (signatures)
Search/Exam
Oct 19, 2023
Text intended for grant (clean copy)
Search/Exam
Oct 19, 2023
Apr 21, 2022
(Electronic) Receipt
Search/Exam
Apr 21, 2022
Amended claims with annotations
Search/Exam
Apr 21, 2022
Amended description with annotations
Search/Exam
Apr 21, 2022
Claims
Search/Exam
Apr 21, 2022
Description
Search/Exam
Apr 21, 2022
Letter accompanying subsequently filed items
Search/Exam
Apr 21, 2022
Dec 13, 2021
Annex to the communication
Search/Exam
Dec 13, 2021
Communication from the Examining Division
Search/Exam
Jul 9, 2021
(Electronic) Receipt
Search/Exam
Jul 9, 2021
Amended claims with annotations
Search/Exam
Jul 9, 2021
Amended description with annotations
Search/Exam
Jul 9, 2021
Claims
Search/Exam
Jul 9, 2021
Description
Search/Exam
Jul 9, 2021
Letter accompanying subsequently filed items
Search/Exam
Jul 9, 2021
May 21, 2021
Annex to the communication
Search/Exam
May 21, 2021
Communication from the Examining Division
Search/Exam
Mar 22, 2021
(Electronic) Receipt
Search/Exam
Mar 22, 2021
Amended claims with annotations
Search/Exam
Mar 22, 2021
Amended description with annotations
Search/Exam
Mar 22, 2021
Claims
Search/Exam
Mar 22, 2021
Description
Search/Exam
Mar 22, 2021
Letter accompanying subsequently filed items
Search/Exam
Mar 22, 2021
Jan 14, 2021
Annex to the communication
Search/Exam
Jan 14, 2021
Communication from the Examining Division
Search/Exam
Jan 13, 2021
(Electronic) Receipt
Search/Exam
Jan 13, 2021
Claims
Search/Exam
Jan 13, 2021
Letter accompanying subsequently filed items
Search/Exam
Jan 13, 2021
Nov 26, 2020
(Electronic) Receipt
Search/Exam
Nov 26, 2020
Amended description with annotations
Search/Exam
Nov 26, 2020
Claims
Search/Exam
Nov 26, 2020
Description
Search/Exam
Nov 26, 2020
Letter accompanying subsequently filed items
Search/Exam
Nov 26, 2020
Jul 21, 2020
Annex to the communication
Search/Exam
Jul 21, 2020
Communication from the Examining Division
Search/Exam
Jul 15, 2020
Examination started
Search/Exam
Jun 19, 2020
(Electronic) Receipt
Search/Exam
Jun 19, 2020
Jun 19, 2020
Amended claims with annotations
Search/Exam
Jun 19, 2020
Amendments received before examination
Search/Exam
Jun 19, 2020
Letter accompanying subsequently filed items
Search/Exam
Mar 19, 2020
Document concerning representation
Search/Exam
Dec 13, 2019
Nov 26, 2019
Nov 26, 2019
European search opinion
Search/Exam
Nov 26, 2019
Information on Search Strategy
Search/Exam
Nov 26, 2019
Supplementary European search report
Search/Exam
Nov 7, 2019
Search started
Search/Exam
Jan 21, 2019
(Electronic) Receipt
Search/Exam
Jan 21, 2019
Converted Sequence Listing
Search/Exam
Jan 21, 2019
Letter accompanying subsequently filed items
Search/Exam
Jan 21, 2019
Jan 9, 2019
Notification of forthcoming publication
Search/Exam
Dec 20, 2018
Dec 14, 2018
Dec 13, 2018
Nov 20, 2018
Deficiencies in sequence listing
Search/Exam
Nov 13, 2018
Nov 9, 2018
Communication to designated inventor
Search/Exam
Nov 9, 2018
Communication to designated inventor
Search/Exam
Nov 9, 2018
Communication to designated inventor
Search/Exam
Nov 9, 2018
Communication to designated inventor
Search/Exam
Nov 9, 2018
Communication to designated inventor
Search/Exam
Nov 8, 2018
Oct 26, 2018
(Electronic) Receipt
Search/Exam
Oct 26, 2018
Abstract
Search/Exam
Oct 26, 2018
Claims
Search/Exam
Oct 26, 2018
Description
Search/Exam
Oct 26, 2018
Drawings
Search/Exam
Oct 26, 2018
Request for entry into the European phase
Search/Exam
Oct 26, 2018
Submission concerning representation
Search/Exam
Oct 16, 2018
Oct 16, 2018
Aug 31, 2018
Notification of the recording of a change
Search/Exam
Aug 10, 2018
Information on entry into European phase
Search/Exam
Oct 5, 2017
Copy of the international search report
Search/Exam
Oct 5, 2017
Oct 5, 2017
International publication pamphlet
Search/Exam