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The patent EP3148521 was granted to Glaxosmithkline on Dec 18, 2019. The application was filed on May 27, 2015 under application number EP15726106A. The patent is currently recorded with a legal status of "Revoked".

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 |
|---|---|---|---|
| GILL JENNINGS & EVERY | Sep 16, 2020 | GILL JENNINGS & EVERY | ADMISSIBLE |
| TEVA PHARMACEUTICALS | Sep 8, 2020 | ELKINGTON AND FIFE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | GB2242134 |
| DESCRIPTION | US2007062525 |
| DESCRIPTION | US2008196718 |
| DESCRIPTION | US2012309725 |
| DESCRIPTION | US5873360 |
| DESCRIPTION | US7101866 |
| DESCRIPTION | US7488827 |
| DESCRIPTION | US8534281 |
| DESCRIPTION | USRE44874E |
| DESCRIPTION | WO0212265 |
| DESCRIPTION | WO03024439 |
| DESCRIPTION | WO03061743 |
| DESCRIPTION | WO2005104745 |
| DESCRIPTION | WO2007012871 |
| DESCRIPTION | WO2007068896 |
| DESCRIPTION | WO2011067212 |
| DESCRIPTION | WO2014027045 |
| INTERNATIONAL-SEARCH-REPORT | WO2011067212 |
| OPPOSITION | WO2011067212 |
| OPPOSITION | WO2012168161 |
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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May 19, 2025
May 19, 2025
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Jan 27, 2025
(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Feb 28, 2024
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(Electronic) Receipt
Appeal
Aug 3, 2023
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Jun 30, 2023
(Electronic) Receipt
Appeal
Jun 30, 2023
Jun 30, 2023
Reply to appeal
Appeal
Feb 20, 2023
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Feb 17, 2023
(Electronic) Receipt
Appeal
Feb 17, 2023
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Nov 28, 2022
Nov 23, 2022
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(Electronic) Receipt
Appeal
Nov 23, 2022
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Notice of appeal
Appeal
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Jan 2, 2020
Nov 21, 2019
Decision to grant a European patent
Search/Exam
Nov 8, 2019
(Electronic) Receipt
Search/Exam
Nov 8, 2019
Filing of the translations of the claims
Search/Exam
Nov 8, 2019
French translation of claims
Search/Exam
Nov 8, 2019
German translation of the claims
Search/Exam
Nov 8, 2019
Letter accompanying subsequently filed items
Search/Exam
Jul 11, 2019
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Intention to grant (signatures)
Search/Exam
Jul 11, 2019
Text intended for grant (clean copy)
Search/Exam
Jul 11, 2019
Jul 2, 2019
May 23, 2019
(Electronic) Receipt
Search/Exam
May 23, 2019
Amended claims with annotations
Search/Exam
May 23, 2019
Amended description with annotations
Search/Exam
May 23, 2019
Claims
Search/Exam
May 23, 2019
Description
Search/Exam
May 23, 2019
Letter accompanying subsequently filed items
Search/Exam
May 23, 2019
Mar 20, 2019
Mar 15, 2019
(Electronic) Receipt
Search/Exam
Mar 15, 2019
Letter accompanying subsequently filed items
Search/Exam
Mar 15, 2019
Nov 16, 2018
Annex to the communication
Search/Exam
Nov 16, 2018
Communication from the Examining Division
Search/Exam
Mar 16, 2018
(Electronic) Receipt
Search/Exam
Mar 16, 2018
Letter accompanying subsequently filed items
Search/Exam
Mar 16, 2018
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Jan 4, 2018
Dec 21, 2017
(Electronic) Receipt
Search/Exam
Dec 21, 2017
Letter accompanying subsequently filed items
Search/Exam
Dec 21, 2017
Sep 13, 2017
Annex to the communication
Search/Exam
Sep 13, 2017
Communication from the Examining Division
Search/Exam
Sep 7, 2017
Examination started
Search/Exam
Mar 8, 2017
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Jan 4, 2017
Communication to designated inventor
Search/Exam
Jan 4, 2017
Communication to designated inventor
Search/Exam
Dec 12, 2016
Dec 2, 2016
(Electronic) Receipt
Search/Exam
Dec 2, 2016
Dec 2, 2016
Amendments received before examination
Search/Exam
Dec 2, 2016
Dec 2, 2016
Request for entry into the European phase
Search/Exam
Oct 17, 2016
Information on entry into European phase
Search/Exam
Oct 7, 2016
Information on entry into European phase
Search/Exam
Jan 4, 2016
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Dec 3, 2015
Copy of the international search report
Search/Exam
Dec 3, 2015
Published international application - A1
Search/Exam
Aug 3, 2015
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May 27, 2015
(Electronic) Receipt
PCTRO
May 27, 2015
Abstract
PCTRO
May 27, 2015
Claims
PCTRO
May 27, 2015
Description
PCTRO
May 27, 2015