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The patent EP4200443 was granted to University College Cardiff Consultants on Apr 10, 2024. The application was filed on Aug 20, 2021 under application number EP21766455A. 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 |
|---|---|---|---|
| MERCK PATENT | Jan 9, 2025 | GRAHAM WATT | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2010111768 |
| DESCRIPTION | US8951781 |
| DESCRIPTION | WO2014142841 |
| EXAMINATION | WO2019217816 |
| INTERNATIONAL-SEARCH-REPORT | WO2015134552 |
| INTERNATIONAL-SEARCH-REPORT | WO2017083562 |
| INTERNATIONAL-SEARCH-REPORT | WO2017218979 |
| INTERNATIONAL-SEARCH-REPORT | WO2018140695 |
| OPPOSITION | WO2019217816 |
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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Aug 12, 2024
Payment submission rejected
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Apr 23, 2024
Mar 14, 2024
Decision to grant a European patent
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Feb 29, 2024
(Electronic) Receipt
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Feb 29, 2024
Filing of the translations of the claims
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Feb 29, 2024
French translation of claims
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Feb 29, 2024
German translation of the claims
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Feb 29, 2024
Letter accompanying subsequently filed items
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Feb 16, 2024
Feb 16, 2024
Feb 16, 2024
Feb 16, 2024
Intention to grant (signatures)
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Feb 16, 2024
Text intended for grant (clean copy)
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Feb 16, 2024
Jan 30, 2024
(Electronic) Receipt
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Jan 30, 2024
Letter accompanying subsequently filed items
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Jan 30, 2024
Dec 15, 2023
Dec 15, 2023
Annex to the communication
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Dec 15, 2023
Communication from the Examining Division
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Dec 15, 2023
Dec 11, 2023
(Electronic) Receipt
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Dec 11, 2023
Citation filed by a third party
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Dec 11, 2023
Citation filed by a third party
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Dec 11, 2023
Citation filed by a third party
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Dec 11, 2023
Citation filed by a third party
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Dec 11, 2023
Citation filed by a third party
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Dec 11, 2023
Letter accompanying subsequently filed items
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Dec 11, 2023
Non-patent literature filed by a third party
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Dec 11, 2023
Non-patent literature filed by a third party
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Dec 11, 2023
Non-patent literature filed by a third party
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Dec 11, 2023
Observations by third parties
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Nov 9, 2023
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Nov 9, 2023
Intention to grant (signatures)
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Nov 9, 2023
Text intended for grant (clean copy)
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Nov 9, 2023
Oct 10, 2023
(Electronic) Receipt
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Oct 10, 2023
Amended claims with annotations
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Oct 10, 2023
Amended description with annotations
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Oct 10, 2023
Claims
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Oct 10, 2023
Description
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Oct 10, 2023
Letter accompanying subsequently filed items
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Oct 10, 2023
Jun 15, 2023
Annex to the communication
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Jun 15, 2023
Communication from the Examining Division
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Jun 11, 2023
Examination started
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Jun 1, 2023
Mar 20, 2023
(Electronic) Receipt
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Mar 20, 2023
Mar 20, 2023
Amended claims with annotations
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Mar 20, 2023
Mar 20, 2023
Amended description with annotations
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Mar 20, 2023
Amendments received before examination
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Mar 20, 2023
Request for entry into the European phase
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Mar 6, 2023
Jan 9, 2023
Information on entry into European phase
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Jul 21, 2022
Jul 21, 2022
Notification of the recording of a change
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Mar 14, 2022
Feb 24, 2022
Converted Sequence Listing
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Feb 24, 2022
Copy of the international search report
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Feb 24, 2022
Published international application - A1
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Oct 18, 2021
Oct 13, 2021
ISR: cited documents
PCTISA
Oct 13, 2021
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Sep 28, 2021
(Electronic) Receipt
PCTRO
Sep 28, 2021
Annex
PCTRO
Sep 28, 2021
Annex
PCTRO
Sep 28, 2021
Annex
PCTRO
Sep 28, 2021
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Sep 15, 2021
Aug 20, 2021
(Electronic) Receipt
PCTRO
Aug 20, 2021
Abstract
PCTRO
Aug 20, 2021
Claims
PCTRO
Aug 20, 2021
Description
PCTRO
Aug 20, 2021
Aug 20, 2021
Drawings
PCTRO
Aug 20, 2021
Apr 13, 2021
Priority search results
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