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The patent EP3253377 was granted to Alkermes Pharma Ireland on May 12, 2021. The application was originally filed on Mar 10, 2015 under application number EP15760508A. 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 |
|---|---|---|---|
| GENERICS UK | Feb 11, 2022 | ELKINGTON AND FIFE | ADMISSIBLE |
| TEVA PHARMACEUTICALS | Feb 11, 2022 | D YOUNG | ADMISSIBLE |
| ADALVO | Feb 7, 2022 | BRAND MURRAY FULLER | ADMISSIBLE |
| SANDOZ | Jan 20, 2022 | KRAUS & LEDERER PARTGMBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2006205659 |
| DESCRIPTION | US2007027076 |
| DESCRIPTION | US2008089896 |
| DESCRIPTION | US2012165404 |
| DESCRIPTION | US6277882 |
| DESCRIPTION | US6359003 |
| DESCRIPTION | US6436992 |
| DESCRIPTION | US6509376 |
| DESCRIPTION | US6858750 |
| DESCRIPTION | US7157423 |
| DESCRIPTION | US8007826 |
| DESCRIPTION | WO02055063 |
| DESCRIPTION | WO2004082684 |
| DESCRIPTION | WO2005023241 |
| DESCRIPTION | WO2005027899 |
| DESCRIPTION | WO2005099701 |
| DESCRIPTION | WO2006037342 |
| DESCRIPTION | WO2007042034 |
| DESCRIPTION | WO9852549 |
| DESCRIPTION | WO9949858 |
| INTERNATIONAL-SEARCH-REPORT | US2014275048 |
| INTERNATIONAL-SEARCH-REPORT | US6359003 |
| INTERNATIONAL-SEARCH-REPORT | WO2006037342 |
| INTERNATIONAL-SEARCH-REPORT | WO2013119677 |
| OPPOSITION | US2014275048 |
| OPPOSITION | US6359003 |
| OPPOSITION | US6509376 |
| OPPOSITION | US8669281 |
| OPPOSITION | WO2006037342 |
| OPPOSITION | WO2013119677 |
| OPPOSITION | WO2014152494 |
| OPPOSITION | WO2015017762 |
| OPPOSITION | WO2016081355 |
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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Jul 8, 2025
Jul 4, 2025
(Electronic) Receipt
Appeal
Jul 4, 2025
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Reply to appeal
Appeal
Jul 1, 2025
Jun 26, 2025
(Electronic) Receipt
Appeal
Jun 26, 2025
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Reply to appeal
Appeal
Jun 25, 2025
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Mar 8, 2025
(Electronic) Receipt
Appeal
Mar 8, 2025
Mar 8, 2025
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Reply to appeal
Appeal
Mar 4, 2025
Mar 4, 2025
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Feb 27, 2025
(Electronic) Receipt
Appeal
Feb 27, 2025
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Feb 26, 2025
(Electronic) Receipt
Appeal
Feb 26, 2025
(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Dec 23, 2024
(Electronic) Receipt
Appeal
Dec 23, 2024
Notice of appeal
Appeal
Dec 20, 2024
(Electronic) Receipt
Appeal
Dec 20, 2024
Dec 20, 2024
Notice of appeal
Appeal
Dec 19, 2024
(Electronic) Receipt
Appeal
Dec 19, 2024
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Notice of appeal
Appeal
Dec 18, 2024
(Electronic) Receipt
Appeal
Dec 18, 2024
Notice of appeal
Appeal
Dec 18, 2024
Notice of appeal
Appeal
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Means of redress
OPPO
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Authorisation
OPPO
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May 26, 2021
Apr 15, 2021
Decision to grant a European patent
Search/Exam
Apr 1, 2021
(Electronic) Receipt
Search/Exam
Apr 1, 2021
Filing of the translations of the claims
Search/Exam
Apr 1, 2021
French translation of claims
Search/Exam
Apr 1, 2021
German translation of the claims
Search/Exam
Dec 23, 2020
Dec 23, 2020
Dec 23, 2020
Intention to grant (signatures)
Search/Exam
Dec 23, 2020
Text intended for grant (clean copy)
Search/Exam
Dec 23, 2020
Oct 13, 2020
(Electronic) Receipt
Search/Exam
Oct 13, 2020
Amended claims with annotations
Search/Exam
Oct 13, 2020
Amended description with annotations
Search/Exam
Oct 13, 2020
Claims
Search/Exam
Oct 13, 2020
Description
Search/Exam
Oct 13, 2020
Letter accompanying subsequently filed items
Search/Exam
Oct 13, 2020
Aug 4, 2020
Jul 30, 2020
(Electronic) Receipt
Search/Exam
Jul 30, 2020
Apr 3, 2020
Annex to the communication
Search/Exam
Apr 3, 2020
Communication from the Examining Division
Search/Exam
Mar 24, 2020
Examination started
Search/Exam
Apr 24, 2019
Apr 16, 2019
(Electronic) Receipt
Search/Exam
Apr 16, 2019
Authorisation
Search/Exam
Apr 16, 2019
Letter accompanying subsequently filed items
Search/Exam
Apr 16, 2019
Apr 9, 2019
Mar 29, 2019
(Electronic) Receipt
Search/Exam
Mar 29, 2019
Letter accompanying subsequently filed items
Search/Exam
Mar 29, 2019
Mar 12, 2018
(Electronic) Receipt
Search/Exam
Mar 12, 2018
Mar 12, 2018
Amended claims with annotations
Search/Exam
Mar 12, 2018
Amendments received before examination
Search/Exam
Mar 12, 2018
Letter accompanying subsequently filed items
Search/Exam
Nov 15, 2017
Sep 15, 2017
Sep 13, 2017
Communication to designated inventor
Search/Exam
Sep 13, 2017
Communication to designated inventor
Search/Exam
Sep 13, 2017
Communication to designated inventor
Search/Exam
Sep 13, 2017
Communication to designated inventor
Search/Exam
Sep 13, 2017
Refund of fees
Search/Exam
Aug 23, 2017
Aug 3, 2017
(Electronic) Receipt
Search/Exam
Aug 3, 2017
Request for entry into the European phase
Search/Exam
Jun 19, 2017
Information on entry into European phase
Search/Exam
Aug 30, 2016
Aug 11, 2016
Copy of the international search report
Search/Exam
Aug 11, 2016
Published international application - A1
Search/Exam
Oct 28, 2015
ISR: cited documents
PCTISA
Oct 27, 2015
Oct 27, 2015
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Sep 29, 2015
Sep 22, 2015
Aug 28, 2015
Abstract
PCTISA
Aug 28, 2015
Claims
PCTISA
Aug 28, 2015
Description
PCTISA
Aug 28, 2015
Drawings
PCTISA
Aug 28, 2015
Jul 24, 2015