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The patent EP3142661 was granted to Astrazeneca on Oct 6, 2021. The application was originally filed on May 14, 2015 under application number EP15726257A. 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 |
|---|---|---|---|
| GENERICS UK | Jul 6, 2022 | TER MEER STEINMEISTER & PARTNER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | US6515117 |
| INTERNATIONAL-SEARCH-REPORT | US6774112 |
| INTERNATIONAL-SEARCH-REPORT | WO2009091082 |
| INTERNATIONAL-SEARCH-REPORT | WO2010092125 |
| INTERNATIONAL-SEARCH-REPORT | WO2014161918 |
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.
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OPPO
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Oct 19, 2021
Sep 9, 2021
Decision to grant a European patent
Search/Exam
Aug 27, 2021
(Electronic) Receipt
Search/Exam
Aug 27, 2021
Filing of the translations of the claims
Search/Exam
Aug 27, 2021
French translation of claims
Search/Exam
Aug 27, 2021
German translation of the claims
Search/Exam
Aug 27, 2021
Letter accompanying subsequently filed items
Search/Exam
May 7, 2021
May 7, 2021
May 7, 2021
Intention to grant (signatures)
Search/Exam
May 7, 2021
Text intended for grant (clean copy)
Search/Exam
May 7, 2021
Oct 1, 2020
(Electronic) Receipt
Search/Exam
Oct 1, 2020
Amended claims with annotations
Search/Exam
Oct 1, 2020
Amended description with annotations
Search/Exam
Oct 1, 2020
Claims
Search/Exam
Oct 1, 2020
Description
Search/Exam
Oct 1, 2020
Letter accompanying subsequently filed items
Search/Exam
Oct 1, 2020
Jul 27, 2020
Jul 22, 2020
(Electronic) Receipt
Search/Exam
Jul 22, 2020
Letter accompanying subsequently filed items
Search/Exam
Jul 22, 2020
Jun 4, 2020
Annex to the communication
Search/Exam
Jun 4, 2020
Communication from the Examining Division
Search/Exam
Jul 29, 2019
Decision to allow further processing
Search/Exam
Jul 16, 2019
(Electronic) Receipt
Search/Exam
Jul 16, 2019
Amended claims with annotations
Search/Exam
Jul 16, 2019
Claims
Search/Exam
Jul 16, 2019
Letter accompanying subsequently filed items
Search/Exam
Jul 16, 2019
Request for further processing
Search/Exam
May 21, 2019
Jan 31, 2019
Jan 28, 2019
(Electronic) Receipt
Search/Exam
Jan 28, 2019
Letter accompanying subsequently filed items
Search/Exam
Jan 28, 2019
Oct 4, 2018
Annex to the communication
Search/Exam
Oct 4, 2018
Communication from the Examining Division
Search/Exam
Sep 27, 2018
Examination started
Search/Exam
Aug 8, 2017
Aug 2, 2017
Aug 1, 2017
(Electronic) Receipt
Search/Exam
Aug 1, 2017
Aug 1, 2017
Amendments received before examination
Search/Exam
Aug 1, 2017
Letter accompanying subsequently filed items
Search/Exam
Jul 10, 2017
Jun 8, 2017
(Electronic) Receipt
Search/Exam
Jun 8, 2017
Letter accompanying subsequently filed items
Search/Exam
Jun 8, 2017
May 30, 2017
Submission concerning representation
Search/Exam
Feb 22, 2017
Feb 3, 2017
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Communication to designated inventor
Search/Exam
Jan 2, 2017
Communication to designated inventor
Search/Exam
Dec 9, 2016
(Electronic) Receipt
Search/Exam
Dec 9, 2016
Dec 9, 2016
General authorisation
Search/Exam
Dec 9, 2016
Request for entry into the European phase
Search/Exam
Dec 6, 2016
Oct 13, 2016
Oct 13, 2016
Oct 13, 2016
Notification of the recording of a change
Search/Exam
Oct 13, 2016
Notification of the recording of a change
Search/Exam
Sep 23, 2016
Information on entry into European phase
Search/Exam
Dec 8, 2015
Dec 8, 2015
Nov 19, 2015
Copy of the international search report
Search/Exam
Nov 19, 2015
Published international application - A1
Search/Exam
Aug 14, 2015
ISR: cited documents
PCTISA
Aug 3, 2015
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May 22, 2015
Abstract
PCTISA
May 22, 2015
Claims
PCTISA
May 22, 2015
Description
PCTISA
May 22, 2015
May 22, 2015