The weekly litigation news digest is live. Subscribe now
The patent EP3022231 was granted to Curadev Pharma PVT on Apr 18, 2018. The application was filed on Jul 16, 2014 under application number EP14742322A. 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 |
|---|---|---|---|
| LIGAND PHARMACEUTICALS INCORPORATED | Jan 18, 2019 | HARRIS | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | EP1950227 |
| INTERNATIONAL-SEARCH-REPORT | US2009270348 |
| INTERNATIONAL-SEARCH-REPORT | WO2013123254 |
| OPPOSITION | EP1950227 |
| OPPOSITION | US2009270348 |
| OPPOSITION | US2013303465 |
| OPPOSITION | US5134127 |
| OPPOSITION | WO03092590 |
| OPPOSITION | WO2013123254 |
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
Get instant alerts for new documents
Dec 12, 2025
Dec 12, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Dec 10, 2025
Feb 20, 2025
Feb 20, 2025
Feb 20, 2025
Feb 20, 2025
Jun 28, 2024
Refund of fees
Appeal
Jun 28, 2024
Refund of fees
Appeal
Jun 24, 2024
Jun 24, 2024
Jun 24, 2024
Jun 20, 2024
Jun 20, 2024
Jun 20, 2024
Jun 11, 2024
(Electronic) Receipt
Appeal
Jun 11, 2024
Jun 11, 2024
Jun 11, 2024
Withdrawal of an appeal
Appeal
Jun 7, 2024
Jun 6, 2024
(Electronic) Receipt
Appeal
Jun 6, 2024
Jun 6, 2024
Jun 3, 2024
Jun 3, 2024
Jun 3, 2024
Jun 3, 2024
May 3, 2024
May 3, 2024
May 3, 2024
Apr 30, 2024
(Electronic) Receipt
Appeal
Apr 30, 2024
Apr 30, 2024
Oct 30, 2023
Oct 24, 2023
(Electronic) Receipt
Appeal
Oct 24, 2023
Oct 24, 2023
Sep 20, 2023
Sep 20, 2023
Aug 11, 2023
Aug 10, 2023
(Electronic) Receipt
Appeal
Aug 10, 2023
Aug 10, 2023
Jun 2, 2023
Advice of delivery
Appeal
May 31, 2023
May 31, 2023
May 31, 2023
May 31, 2023
May 24, 2023
Mar 3, 2023
Feb 27, 2023
(Electronic) Receipt
Appeal
Feb 27, 2023
Feb 27, 2023
Feb 27, 2023
Feb 27, 2023
Oct 25, 2022
Oct 20, 2022
(Electronic) Receipt
Appeal
Oct 20, 2022
Oct 20, 2022
Oct 20, 2022
Jul 22, 2022
Apr 19, 2022
Apr 13, 2022
Apr 11, 2022
(Electronic) Receipt
Appeal
Apr 11, 2022
Apr 11, 2022
Apr 11, 2022
Reply to appeal
Appeal
Apr 8, 2022
(Electronic) Receipt
Appeal
Apr 8, 2022
Apr 8, 2022
Reply to appeal
Appeal
Nov 29, 2021
Nov 29, 2021
Nov 24, 2021
(Electronic) Receipt
Appeal
Nov 24, 2021
Nov 24, 2021
Nov 24, 2021
Nov 24, 2021
Nov 23, 2021
(Electronic) Receipt
Appeal
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Nov 23, 2021
Sep 28, 2021
Sep 28, 2021
Sep 28, 2021
Sep 28, 2021
Sep 23, 2021
(Electronic) Receipt
Appeal
Sep 23, 2021
(Electronic) Receipt
Appeal
Sep 23, 2021
Sep 23, 2021
Sep 23, 2021
Notice of appeal
Appeal
Sep 23, 2021
Notice of appeal
Appeal
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Means of redress
OPPO
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
May 19, 2021
May 18, 2021
May 13, 2021
May 13, 2021
May 13, 2021
May 13, 2021
May 7, 2021
May 7, 2021
May 7, 2021
Mar 23, 2021
Mar 17, 2021
Mar 17, 2021
Mar 17, 2021
Mar 17, 2021
Mar 17, 2021
Mar 17, 2021
Mar 17, 2021
Jan 12, 2021
Dec 18, 2020
Dec 18, 2020
Dec 18, 2020
Dec 8, 2020
Dec 8, 2020
Dec 8, 2020
Dec 8, 2020
Dec 8, 2020
Dec 8, 2020
Dec 8, 2020
May 15, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
Apr 28, 2020
Apr 28, 2020
Apr 9, 2020
Apr 9, 2020
Apr 9, 2020
Apr 3, 2020
Apr 3, 2020
Apr 3, 2020
Apr 3, 2020
Apr 3, 2020
Apr 3, 2020
Mar 17, 2020
Mar 11, 2020
Mar 11, 2020
Mar 11, 2020
Mar 11, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Mar 5, 2020
Feb 21, 2020
Feb 17, 2020
Feb 17, 2020
Feb 17, 2020
Feb 17, 2020
Feb 17, 2020
Feb 17, 2020
Feb 17, 2020
Nov 19, 2019
Nov 19, 2019
Oct 22, 2019
Oct 14, 2019
Oct 14, 2019
Oct 14, 2019
Oct 14, 2019
Oct 14, 2019
Oct 14, 2019
Oct 2, 2019
Sep 26, 2019
Sep 26, 2019
Sep 26, 2019
Sep 26, 2019
Jun 14, 2019
Jun 11, 2019
Jun 11, 2019
Jun 11, 2019
Jun 11, 2019
Jun 11, 2019
Jun 11, 2019
Jun 11, 2019
Jun 11, 2019
Jun 11, 2019
Jun 11, 2019
Jun 11, 2019
Jun 11, 2019
Jun 11, 2019
Jun 11, 2019
Jun 11, 2019
Jun 11, 2019
Jun 11, 2019
Jun 11, 2019
Jun 11, 2019
Jun 11, 2019
Jun 11, 2019
Jun 11, 2019
Jun 11, 2019
Feb 1, 2019
Feb 1, 2019
Jan 23, 2019
Jan 18, 2019
Jan 18, 2019
Jan 18, 2019
Jan 18, 2019
Jan 18, 2019
Jan 18, 2019
Jan 18, 2019
Jan 18, 2019
Jan 18, 2019
Jan 18, 2019
Jan 18, 2019
Jan 18, 2019
Jan 18, 2019
Jan 18, 2019
Jan 18, 2019
Jan 18, 2019
Jan 18, 2019
Jan 18, 2019
Jan 18, 2019
Jan 18, 2019
Jan 18, 2019
Apr 30, 2018
Mar 22, 2018
Decision to grant a European patent
Search/Exam
Mar 12, 2018
Mar 12, 2018
Mar 12, 2018
Intention to grant (signatures)
Search/Exam
Mar 12, 2018
Text intended for grant (clean copy)
Search/Exam
Mar 12, 2018
Mar 5, 2018
Feb 1, 2018
(Electronic) Receipt
Search/Exam
Feb 1, 2018
Amended claims with annotations
Search/Exam
Feb 1, 2018
Claims
Search/Exam
Feb 1, 2018
French translation of claims
Search/Exam
Feb 1, 2018
German translation of the claims
Search/Exam
Feb 1, 2018
Letter accompanying subsequently filed items
Search/Exam
Feb 1, 2018
Dec 14, 2017
Dec 14, 2017
Dec 14, 2017
Intention to grant (signatures)
Search/Exam
Dec 14, 2017
Text intended for grant (clean copy)
Search/Exam
Dec 14, 2017
Dec 1, 2017
(Electronic) Receipt
Search/Exam
Dec 1, 2017
Enquiry as to the processing of the file
Search/Exam
Dec 1, 2017
Letter accompanying subsequently filed items
Search/Exam
Aug 21, 2017
(Electronic) Receipt
Search/Exam
Aug 21, 2017
Amended claims with annotations
Search/Exam
Aug 21, 2017
Amended description with annotations
Search/Exam
Aug 21, 2017
Claims
Search/Exam
Aug 21, 2017
Description
Search/Exam
Aug 21, 2017
Letter accompanying subsequently filed items
Search/Exam
Aug 21, 2017
Aug 2, 2017
Annex to the communication
Search/Exam
Aug 2, 2017
Communication from the Examining Division
Search/Exam
May 24, 2017
(Electronic) Receipt
Search/Exam
May 24, 2017
Amended claims with annotations
Search/Exam
May 24, 2017
Claims
Search/Exam
May 24, 2017
Letter accompanying subsequently filed items
Search/Exam
May 24, 2017
Jan 24, 2017
Annex to the communication
Search/Exam
Jan 24, 2017
Communication from the Examining Division
Search/Exam
Jan 17, 2017
Examination started
Search/Exam
Jun 28, 2016
(Electronic) Receipt
Search/Exam
Jun 28, 2016
Jun 28, 2016
Amended claims with annotations
Search/Exam
Jun 28, 2016
Amendments received before examination
Search/Exam
Jun 28, 2016
Letter accompanying subsequently filed items
Search/Exam
Jun 28, 2016
Jun 28, 2016
Apr 28, 2016
Mar 4, 2016
Feb 22, 2016
Communication to designated inventor
Search/Exam
Feb 22, 2016
Communication to designated inventor
Search/Exam
Feb 22, 2016
Communication to designated inventor
Search/Exam
Feb 15, 2016
(Electronic) Receipt
Search/Exam
Feb 15, 2016
Letter accompanying subsequently filed items
Search/Exam
Feb 15, 2016
Matter concerning the application
Search/Exam
Jan 26, 2016
Jan 26, 2016
Jan 12, 2016
(Electronic) Receipt
Search/Exam
Jan 12, 2016
Request for entry into the European phase
Search/Exam
Jan 12, 2016
Submission concerning representation
Search/Exam
Nov 27, 2015
Information on entry into European phase
Search/Exam
Sep 23, 2015
Sep 23, 2015
Sep 23, 2015
Sep 23, 2015
Sep 23, 2015
Jun 25, 2015
Written opinion
PCT2
Jun 25, 2015
Jun 25, 2015
Jun 18, 2015
Jun 17, 2015
Notification of the recording of a change
Search/Exam
May 26, 2015
May 12, 2015
May 12, 2015
PCT demand form
PCT2
May 12, 2015
May 12, 2015
May 12, 2015
May 12, 2015
May 12, 2015
Feb 10, 2015
Feb 10, 2015
Jan 22, 2015
Copy of the international search report
Search/Exam
Jan 22, 2015
Published international application - A1
Search/Exam
Oct 6, 2014
Oct 6, 2014
Oct 6, 2014
Jul 25, 2014
Abstract
PCTISA
Jul 25, 2014
Claims
PCTISA
Jul 25, 2014
Description
PCTISA
Jul 25, 2014
Drawings
PCTISA