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The patent EP4005592 was granted to Glaxosmithkline on Oct 12, 2022. The application was filed on Jul 6, 2011 under application number EP21204155A. 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 |
|---|---|---|---|
| MARGARET DIXON | Jul 12, 2023 | MEWBURN ELLIS | WITHDRAWN |
| THOMANN | Jul 11, 2023 | THOMANN | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | EP2590676 |
| OPPOSITION | US2011200667 |
| OPPOSITION | WO0000617 |
| OPPOSITION | WO02095023 |
| OPPOSITION | WO0209645 |
| OPPOSITION | WO2007047749 |
| OPPOSITION | WO2009146867 |
| OPPOSITION | WO2010015098 |
| OPPOSITION | WO2012006369 |
| OPPOSITION | WO2012006372 |
| OPPOSITION | WO2012006376 |
| OPPOSITION | WO2012006377 |
| OPPOSITION | WO2012006378 |
| OPPOSITION | WO2012030901 |
| OPPOSITION | WO2012031043 |
| OPPOSITION | WO2012031046 |
| SEARCH | WO02061113 |
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 22, 2025
(Electronic) Receipt
Appeal
Dec 22, 2025
Dec 22, 2025
Withdrawal of an appeal
Appeal
Nov 4, 2025
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Oct 29, 2025
(Electronic) Receipt
Appeal
Oct 29, 2025
Notice of appeal
Appeal
Aug 29, 2025
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Means of redress
OPPO
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Oct 25, 2022
Sep 15, 2022
Decision to grant a European patent
Search/Exam
Sep 1, 2022
(Electronic) Receipt
Search/Exam
Sep 1, 2022
Filing of the translations of the claims
Search/Exam
Sep 1, 2022
French translation of claims
Search/Exam
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German translation of the claims
Search/Exam
Sep 1, 2022
Letter accompanying subsequently filed items
Search/Exam
Aug 17, 2022
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Intention to grant (signatures)
Search/Exam
Aug 17, 2022
Text intended for grant (clean copy)
Search/Exam
Aug 17, 2022
Jul 7, 2022
Examination started
Search/Exam
Jun 7, 2022
May 16, 2022
(Electronic) Receipt
Search/Exam
May 16, 2022
(Electronic) Receipt
Search/Exam
May 16, 2022
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Amended claims with annotations
Search/Exam
May 16, 2022
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Amended description with annotations
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May 16, 2022
Amendments received before examination
Search/Exam
May 16, 2022
Letter accompanying subsequently filed items
Search/Exam
May 16, 2022
Letter accompanying subsequently filed items
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May 4, 2022
Notification of forthcoming publication
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European search opinion
Search/Exam
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European search report
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May 2, 2022
Information on Search Strategy
Search/Exam
Apr 19, 2022
Search started
Search/Exam
Jan 12, 2022
(Electronic) Receipt
Search/Exam
Jan 12, 2022
Letter accompanying subsequently filed items
Search/Exam
Jan 11, 2022
(Electronic) Receipt
Search/Exam
Jan 11, 2022
Claims
Search/Exam
Jan 11, 2022
Letter accompanying subsequently filed items
Search/Exam
Jan 11, 2022
Matter concerning the application
Search/Exam
Nov 5, 2021
Invitation to file claims
Search/Exam
Oct 22, 2021
Abstract
Search/Exam
Oct 22, 2021
Oct 22, 2021
Description
Search/Exam
Oct 22, 2021
Designation of inventor
Search/Exam
Oct 22, 2021
Drawings
Search/Exam
Oct 22, 2021
Request for grant of a European patent
Search/Exam
Feb 2, 2012