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The patent EP3920970 was granted to Assistance Publique Hpitaux DE Paris on Nov 23, 2022. The application was filed on Feb 3, 2020 under application number EP20702304A. 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 |
|---|---|---|---|
| JG OPPOSITIONS | Aug 23, 2023 | MATHYS & SQUIRE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | US10052360 |
| OPPOSITION | WO2005016266 |
| OPPOSITION | WO2014004857 |
| OPPOSITION | WO2018053506 |
| OPPOSITION | WO2020161045 |
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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Dec 11, 2025
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General enquiry
OPPO
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(Electronic) Receipt
Search/Exam
Nov 24, 2022
Annexes in respect of a client data request
Search/Exam
Nov 24, 2022
Letter accompanying subsequently filed items
Search/Exam
Nov 24, 2022
Oct 27, 2022
Decision to grant a European patent
Search/Exam
Oct 12, 2022
(Electronic) Receipt
Search/Exam
Oct 12, 2022
Filing of the translations of the claims
Search/Exam
Oct 12, 2022
French translation of claims
Search/Exam
Oct 12, 2022
German translation of the claims
Search/Exam
Oct 12, 2022
Letter accompanying subsequently filed items
Search/Exam
Jun 14, 2022
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Intention to grant (signatures)
Search/Exam
Jun 14, 2022
Text intended for grant (clean copy)
Search/Exam
Jun 14, 2022
May 24, 2022
Examination started
Search/Exam
Mar 2, 2022
(Electronic) Receipt
Search/Exam
Mar 2, 2022
Letter accompanying subsequently filed items
Search/Exam
Mar 2, 2022
Reply to Written Opinion prepared by the EPO
Search/Exam
Nov 17, 2021
Sep 14, 2021
Sep 7, 2021
Priority search results copy provided by EPO
Search/Exam
Aug 23, 2021
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(Electronic) Receipt
Search/Exam
Jul 26, 2021
Request for entry into the European phase
Search/Exam
Jul 22, 2021
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Notification of the recording of a change
Search/Exam
Jun 18, 2021
Information on entry into European phase
Search/Exam
Aug 31, 2020
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Copy of the international search report
Search/Exam
Aug 13, 2020
Published international application - A1
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Jun 10, 2020
ISR: cited documents
PCTISA
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(Electronic) Receipt
PCTRO
Feb 3, 2020
Abstract
PCTRO
Feb 3, 2020
Claims
PCTRO
Feb 3, 2020
Description
PCTRO
Feb 3, 2020
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