The weekly litigation news digest is live. Subscribe now
The patent EP3414256 was granted to DR Reddys Laboratories on Jan 19, 2022. The application was filed on Feb 10, 2017 under application number EP17749955A. 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 |
|---|---|---|---|
| SOLARA ACTIVE PHARMA SCIENCE | Jun 9, 2022 | DOMPATENT VON KREISLER SELTING WERNER | ADMISSIBLE |
| SOLARA ACTIVE PHARMA SCIENCE | Jun 9, 2022 | DOMPATENT VON PATENT UND RECHTSANWALTEN | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | WO02072598 |
| DESCRIPTION | WO2013192097 |
| INTERNATIONAL-SEARCH-REPORT | US2002120137 |
| INTERNATIONAL-SEARCH-REPORT | US7138390 |
| OPPOSITION | CN103772465 |
| OPPOSITION | CN105168228 |
| OPPOSITION | CN105541953 |
| OPPOSITION | IN4112CHE2011 |
| OPPOSITION | US2002120137 |
| OPPOSITION | US2014148428 |
| OPPOSITION | US2016108082 |
| OPPOSITION | US8461327 |
| OPPOSITION | WO02072598 |
| OPPOSITION | WO2006122977 |
| OPPOSITION | WO2010069604 |
| OPPOSITION | WO2013192097 |
| OTHER | CN103772465 |
| OTHER | CN105168228 |
| OTHER | CN105541953 |
| OTHER | CN108779141 |
| OTHER | IN201641004703 |
| OTHER | IN201641034308 |
| OTHER | IN4112CHE2011 |
| OTHER | US2014148428 |
| OTHER | US2016108082 |
| OTHER | US4319039 |
| OTHER | US4342767 |
| OTHER | US8461327 |
| OTHER | WO2006122977 |
| OTHER | WO2010069604 |
| OTHER | WO2017008773 |
| OTHER | WO2018215002 |
| SEARCH | CN105541953 |
| SEARCH | EP3293196 |
| SEARCH | EP3305799 |
| SEARCH | US2016108082 |
| SEARCH | WO02072598 |
| SEARCH | WO2010069604 |
| SEARCH | WO2013192097 |
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
Mar 27, 2025
Mar 27, 2025
Dec 20, 2024
Dec 20, 2024
Dec 20, 2024
Dec 20, 2024
Dec 20, 2024
Dec 20, 2024
Dec 20, 2024
Dec 20, 2024
Means of redress
OPPO
Dec 20, 2024
Dec 20, 2024
Dec 20, 2024
Dec 20, 2024
Dec 20, 2024
Dec 12, 2024
Oct 16, 2024
Oct 11, 2024
Oct 11, 2024
Oct 11, 2024
Sep 27, 2024
Sep 27, 2024
Sep 4, 2024
Sep 2, 2024
Sep 2, 2024
Sep 2, 2024
Aug 29, 2024
Aug 23, 2024
Aug 23, 2024
Aug 23, 2024
Jun 5, 2024
Jun 5, 2024
Jun 5, 2024
Jun 5, 2024
Jun 5, 2024
Jun 5, 2024
Jun 5, 2024
May 12, 2023
May 5, 2023
May 5, 2023
May 5, 2023
Mar 13, 2023
Mar 7, 2023
Mar 7, 2023
Mar 7, 2023
Mar 7, 2023
Jan 27, 2023
Jan 27, 2023
Jan 23, 2023
Jan 23, 2023
Jan 23, 2023
Jan 23, 2023
Jan 23, 2023
Jan 23, 2023
Jan 23, 2023
Jan 23, 2023
Jan 23, 2023
Nov 3, 2022
Nov 3, 2022
Jun 15, 2022
Jun 9, 2022
Jun 9, 2022
Jun 9, 2022
Jun 9, 2022
Jun 9, 2022
Jun 9, 2022
Jun 9, 2022
Jun 9, 2022
Jun 9, 2022
Jun 9, 2022
Jun 9, 2022
Jun 9, 2022
Jun 9, 2022
Jun 9, 2022
Jun 9, 2022
Jun 9, 2022
Jun 9, 2022
Jun 9, 2022
Feb 1, 2022
Dec 23, 2021
Decision to grant a European patent
Search/Exam
Dec 10, 2021
Dec 1, 2021
(Electronic) Receipt
Search/Exam
Dec 1, 2021
Filing of the translations of the claims
Search/Exam
Dec 1, 2021
French translation of claims
Search/Exam
Dec 1, 2021
German translation of the claims
Search/Exam
Dec 1, 2021
Letter accompanying subsequently filed items
Search/Exam
Nov 25, 2021
Nov 25, 2021
Nov 20, 2021
Observations by third parties
Search/Exam
Nov 20, 2021
Observations by third parties
Search/Exam
Nov 20, 2021
Observations by third parties
Search/Exam
Nov 20, 2021
Patent document filed by a Third party
Search/Exam
Nov 20, 2021
Patent document filed by a Third party
Search/Exam
Nov 20, 2021
Patent document filed by a Third party
Search/Exam
Nov 20, 2021
Patent document filed by a Third party
Search/Exam
Nov 20, 2021
Patent document filed by a Third party
Search/Exam
Nov 20, 2021
Patent document filed by a Third party
Search/Exam
Nov 20, 2021
Patent document filed by a Third party
Search/Exam
Nov 20, 2021
Patent document filed by a Third party
Search/Exam
Nov 20, 2021
Patent document filed by a Third party
Search/Exam
Nov 20, 2021
Patent document filed by a Third party
Search/Exam
Nov 20, 2021
Patent document filed by a Third party
Search/Exam
Nov 20, 2021
Patent document filed by a Third party
Search/Exam
Nov 20, 2021
Patent document filed by a Third party
Search/Exam
Sep 29, 2021
Sep 29, 2021
Sep 29, 2021
Intention to grant (signatures)
Search/Exam
Sep 29, 2021
Text intended for grant (clean copy)
Search/Exam
Sep 29, 2021
Mar 17, 2021
(Electronic) Receipt
Search/Exam
Mar 17, 2021
Amended description with annotations
Search/Exam
Mar 17, 2021
Description
Search/Exam
Mar 17, 2021
Letter accompanying subsequently filed items
Search/Exam
Mar 17, 2021
Dec 14, 2020
Annex to the communication
Search/Exam
Dec 14, 2020
Communication from the Examining Division
Search/Exam
Dec 4, 2020
Examination started
Search/Exam
Mar 18, 2020
(Electronic) Receipt
Search/Exam
Mar 18, 2020
Letter accompanying subsequently filed items
Search/Exam
Mar 18, 2020
Mar 2, 2020
Feb 17, 2020
(Electronic) Receipt
Search/Exam
Feb 17, 2020
Feb 17, 2020
Amended claims with annotations
Search/Exam
Feb 17, 2020
Amendments received before examination
Search/Exam
Feb 17, 2020
Letter accompanying subsequently filed items
Search/Exam
Sep 27, 2019
Sep 11, 2019
Sep 11, 2019
European search opinion
Search/Exam
Sep 11, 2019
Information on Search Strategy
Search/Exam
Sep 11, 2019
Supplementary European search report
Search/Exam
Sep 4, 2019
Search started
Search/Exam
Jun 24, 2019
Communication to designated inventor
Search/Exam
Jun 13, 2019
Letter concerning the inventor
Search/Exam
Mar 19, 2019
Change to the inventor details
Search/Exam
Mar 13, 2019
Letter concerning the inventor
Search/Exam
Jan 21, 2019
Jan 14, 2019
Letter which had not been notified
Search/Exam
Nov 21, 2018
Sep 18, 2018
Sep 14, 2018
Communication to designated inventor
Search/Exam
Sep 14, 2018
Communication to designated inventor
Search/Exam
Sep 14, 2018
Communication to designated inventor
Search/Exam
Sep 14, 2018
Communication to designated inventor
Search/Exam
Sep 14, 2018
Communication to designated inventor
Search/Exam
Sep 14, 2018
Communication to designated inventor
Search/Exam
Aug 29, 2018
Aug 23, 2018
(Electronic) Receipt
Search/Exam
Aug 23, 2018
Request for entry into the European phase
Search/Exam
Jun 22, 2018
Information on entry into European phase
Search/Exam
Sep 12, 2017
Sep 5, 2017
Aug 17, 2017
Copy of the international search report
Search/Exam
Aug 17, 2017
Published international application - A1
Search/Exam