Patent No. EP3226841 (titled "Anticancer Compositions") was filed by Aragon Pharmaceuticals on Dec 3, 2015. The application was issued on Oct 9, 2024.

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 |
|---|---|---|
| BRAND MURRAY FULLER | Jul 9, 2025 | BRAND MURRAY FULLER |
| EIP | Jul 9, 2025 | EIP |
| HEXAL | Jul 9, 2025 | MAIWALD |
| TEVA PHARMACEUTICALS | Jul 8, 2025 | D YOUNG |
| HAMM & WITTKOPP | Jul 7, 2025 | HAMM & WITTKOPP |
| ZENTIVA KS | Jul 7, 2025 | REDDIE & GROSE |
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
Jan 29, 2026
Jan 29, 2026
Jan 29, 2026
Jan 29, 2026
Jan 29, 2026
Jan 29, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Oct 23, 2025
Oct 23, 2025
Oct 23, 2025
Oct 23, 2025
Oct 23, 2025
Oct 23, 2025
Oct 23, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Jul 23, 2025
Jul 23, 2025
Jul 23, 2025
Jul 23, 2025
Jul 23, 2025
Jul 23, 2025
Jul 23, 2025
Jul 16, 2025
Jul 16, 2025
Jul 15, 2025
Jul 14, 2025
Jul 11, 2025
Jul 10, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 9, 2025
Jul 8, 2025
Jul 8, 2025
Jul 8, 2025
Jul 8, 2025
Jul 8, 2025
Jul 8, 2025
Jul 8, 2025
Jul 8, 2025
Jul 8, 2025
Jul 8, 2025
Jul 8, 2025
Jul 8, 2025
Jul 8, 2025
Jul 8, 2025
Jul 8, 2025
Jul 8, 2025
Jul 8, 2025
Jul 8, 2025
Jul 8, 2025
Jul 8, 2025
Jul 8, 2025
Jul 8, 2025
Jul 8, 2025
Jul 8, 2025
Jul 8, 2025
Jul 8, 2025
Jul 8, 2025
Jul 8, 2025
Jul 8, 2025
Jul 8, 2025
Jul 8, 2025
Jul 7, 2025
Jul 7, 2025
Jul 7, 2025
Jul 7, 2025
Jul 7, 2025
Jul 7, 2025
Jul 7, 2025
Jul 7, 2025
Jul 7, 2025
Jul 7, 2025
Jul 7, 2025
Jul 7, 2025
Jul 7, 2025
Jul 7, 2025
Jul 7, 2025
Jul 7, 2025
Jul 7, 2025
Jul 7, 2025
Jul 7, 2025
Jul 7, 2025
Jul 7, 2025
Jul 7, 2025
Jul 7, 2025
Jul 7, 2025
Jul 7, 2025
Jul 7, 2025
Jul 7, 2025
Jan 10, 2025
Dec 19, 2024
Dec 19, 2024
Dec 19, 2024
Oct 22, 2024
Sep 12, 2024
Sep 2, 2024
Sep 2, 2024
Sep 2, 2024
Sep 2, 2024
Sep 2, 2024
May 2, 2024
May 2, 2024
May 2, 2024
May 2, 2024
May 2, 2024
Mar 18, 2024
Mar 18, 2024
Mar 18, 2024
Mar 18, 2024
Mar 18, 2024
Mar 18, 2024
Mar 18, 2024
Nov 17, 2023
Nov 17, 2023
Nov 17, 2023
Nov 17, 2023
Nov 17, 2023
Nov 17, 2023
May 31, 2023
May 31, 2023
May 31, 2023
May 31, 2023
May 31, 2023
Apr 20, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Jan 16, 2023
Jan 16, 2023
Jan 16, 2023
Sep 5, 2022
Sep 5, 2022
Nov 28, 2021
Jun 11, 2021
Jun 4, 2021
May 28, 2021
May 28, 2021
May 28, 2021
May 28, 2021
Jan 13, 2021
Dec 22, 2020
Dec 22, 2020
Dec 22, 2020
Dec 22, 2020
Sep 16, 2020
Sep 7, 2020
Sep 7, 2020
Sep 7, 2020
Sep 7, 2020
Sep 7, 2020
Jun 26, 2020
Nov 14, 2019
Nov 14, 2019
Sep 18, 2019
Sep 13, 2019
Sep 4, 2019
Apr 25, 2019
Apr 25, 2019
Apr 11, 2019
Apr 11, 2019
Apr 11, 2019
Apr 11, 2019
Apr 11, 2019
Apr 11, 2019
Feb 6, 2019
Feb 1, 2019
Feb 1, 2019
Feb 1, 2019
Oct 1, 2018
Oct 1, 2018
Sep 18, 2018
Jan 18, 2018
Jan 18, 2018
Jan 18, 2018
Jan 18, 2018
Jan 18, 2018
Sep 13, 2017
Jul 18, 2017
Jul 14, 2017
Jul 14, 2017
Jul 11, 2017
Jul 3, 2017
Jul 3, 2017
Jul 3, 2017
Jul 3, 2017
Jun 16, 2017
Jun 16, 2017
Jun 16, 2017
Jun 16, 2017
Apr 18, 2017
Jun 28, 2016
Jun 9, 2016
Jun 9, 2016
Mar 29, 2016
Mar 29, 2016
Mar 29, 2016
Mar 22, 2016
Mar 21, 2016
Mar 21, 2016
Mar 21, 2016
Jan 18, 2016
Jan 14, 2016
Jan 14, 2016
Dec 18, 2015
Dec 18, 2015
Dec 18, 2015
Dec 18, 2015
Dec 18, 2015
Dec 18, 2015
Dec 18, 2015
Dec 18, 2015
Dec 18, 2015
Dec 18, 2015
Dec 18, 2015
Dec 18, 2015