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The patent EP3445407 was granted to Cafa Therapeutics on Dec 14, 2022. The application was filed on Apr 21, 2017 under application number EP17833264A. 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 |
|---|---|---|---|
| MURGITROYD | Sep 13, 2023 | MURGITROYD | ADMISSIBLE |
| SOTIO BIOTECH | Sep 12, 2023 | MAIWALD | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | CN104140974 |
| INTERNATIONAL-SEARCH-REPORT | CN101633693 |
| INTERNATIONAL-SEARCH-REPORT | CN104140974 |
| INTERNATIONAL-SEARCH-REPORT | US2015093822 |
| INTERNATIONAL-SEARCH-REPORT | WO2016036973 |
| INTERNATIONAL-SEARCH-REPORT | WO2016049459 |
| OPPOSITION | EP2995682 |
| OPPOSITION | WO2012099973 |
| OPPOSITION | WO2015172341 |
| OPPOSITION | WO2017020812 |
| OPPOSITION | WO2018018958 |
| SEARCH | EP2995682 |
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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Jan 9, 2026
Jan 8, 2026
(Electronic) Receipt
Appeal
Jan 8, 2026
Dec 23, 2025
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Refund of fees
Appeal
Jul 4, 2025
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(Electronic) Receipt
Appeal
Jul 3, 2025
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Withdrawal of an appeal
Appeal
May 30, 2025
May 26, 2025
(Electronic) Receipt
Appeal
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May 26, 2025
Notice of appeal
Appeal
May 21, 2025
(Electronic) Receipt
Appeal
May 21, 2025
May 21, 2025
Notice of appeal
Appeal
Apr 25, 2025
Letter accompanying subsequently filed items
Search/Exam
Apr 25, 2025
Submission concerning representation
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Nov 17, 2022
Decision to grant a European patent
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Nov 8, 2022
(Electronic) Receipt
Search/Exam
Nov 8, 2022
Filing of the translations of the claims
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Nov 8, 2022
French translation of claims
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Nov 8, 2022
German translation of the claims
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Nov 8, 2022
Letter accompanying subsequently filed items
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Jun 28, 2022
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Intention to grant (signatures)
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Jun 28, 2022
Text intended for grant (clean copy)
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Jun 28, 2022
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(Electronic) Receipt
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Apr 20, 2022
Amended description with annotations
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Apr 20, 2022
Description
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Apr 20, 2022
Enquiry as to the processing of the file
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Apr 20, 2022
Letter accompanying subsequently filed items
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Apr 20, 2022
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(Electronic) Receipt
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Feb 23, 2022
Annexes in respect of a client data request
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Feb 23, 2022
Letter accompanying subsequently filed items
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Feb 23, 2022
Jan 17, 2022
(Electronic) Receipt
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Jan 17, 2022
Amended claims with annotations
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Jan 17, 2022
Claims
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Jan 17, 2022
Letter accompanying subsequently filed items
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Jan 17, 2022
Sep 20, 2021
Document concerning representation
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Sep 7, 2021
Annex to the communication
Search/Exam
Sep 7, 2021
Communication from the Examining Division
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Aug 24, 2021
Examination started
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Aug 3, 2021
Jul 20, 2021
(Electronic) Receipt
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Jul 20, 2021
Enquiry as to the processing of the file
Search/Exam
Jul 20, 2021
Letter accompanying subsequently filed items
Search/Exam
Jun 15, 2021
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(Electronic) Receipt
Search/Exam
May 5, 2021
Annexes in respect of a client data request
Search/Exam
May 5, 2021
Letter accompanying subsequently filed items
Search/Exam
May 5, 2021
Jul 23, 2020
(Electronic) Receipt
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Jul 23, 2020
Letter accompanying subsequently filed items
Search/Exam
Jul 23, 2020
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(Electronic) Receipt
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Jun 16, 2020
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Amended claims with annotations
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Jun 16, 2020
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Jun 16, 2020
Converted Sequence Listing
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Jun 16, 2020
Letter accompanying subsequently filed items
Search/Exam
Jun 16, 2020
Translation of priority document
Search/Exam
Dec 6, 2019
Dec 6, 2019
Nov 19, 2019
Nov 19, 2019
European search opinion
Search/Exam
Nov 19, 2019
Information on Search Strategy
Search/Exam
Nov 19, 2019
Supplementary European search report
Search/Exam
Nov 11, 2019
Search started
Search/Exam
Jul 8, 2019
Jun 18, 2019
(Electronic) Receipt
Search/Exam
Jun 18, 2019
Letter accompanying subsequently filed items
Search/Exam
Jun 18, 2019
Jun 17, 2019
(Electronic) Receipt
Search/Exam
Jun 17, 2019
Letter accompanying subsequently filed items
Search/Exam
Jun 17, 2019
May 30, 2019
(Electronic) Receipt
Search/Exam
May 30, 2019
May 30, 2019
Amended claims with annotations
Search/Exam
May 30, 2019
Amendments received before examination
Search/Exam
May 30, 2019
Letter accompanying subsequently filed items
Search/Exam
Jan 30, 2019
Nov 30, 2018
Nov 27, 2018
Communication to designated inventor
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Nov 27, 2018
Communication to designated inventor
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Nov 27, 2018
Communication to designated inventor
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Nov 27, 2018
Communication to designated inventor
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Nov 27, 2018
Communication to designated inventor
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Nov 15, 2018
(Electronic) Receipt
Search/Exam
Nov 15, 2018
Matter concerning the application
Search/Exam
Nov 15, 2018
Request for entry into the European phase
Search/Exam
Nov 7, 2018
Feb 21, 2018
Feb 1, 2018
Converted Sequence Listing
Search/Exam
Feb 1, 2018
Copy of the international search report
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Feb 1, 2018
Published international application - A1
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