Patent No. EP3300601 (titled "Fixed Drug Ratios For Treatment Of Hematopoietic Cancers And Proliferative Disorders") was filed by Celator Pharmaceuticals on Feb 15, 2008. The application was issued on Jan 12, 2022.

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 |
|---|---|---|
| GENERICS UK | Oct 12, 2022 | ELKINGTON AND FIFE |
| SANDOZ | Oct 11, 2022 | KRAUS & LEDERER PARTGMBB |
| STADA ARZNEIMITTEL | Oct 11, 2022 | HAMM & WITTKOPP |
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 14, 2026
Jan 14, 2026
Jan 14, 2026
Jan 14, 2026
Jan 14, 2026
Jan 14, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 9, 2026
Jan 9, 2026
Jan 9, 2026
Jan 9, 2026
Jan 9, 2026
Jan 9, 2026
Jan 9, 2026
Jan 6, 2026
Jan 6, 2026
Jan 6, 2026
Jul 10, 2025
Jul 10, 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 4, 2025
Jul 4, 2025
Jul 4, 2025
Jun 24, 2025
Jun 24, 2025
Jun 24, 2025
Jun 24, 2025
Jun 12, 2025
Jun 12, 2025
Jun 12, 2025
Jun 6, 2025
Jun 6, 2025
Jun 6, 2025
Apr 3, 2025
Apr 3, 2025
Apr 3, 2025
Apr 3, 2025
Apr 3, 2025
Apr 3, 2025
Apr 3, 2025
Apr 3, 2025
Apr 3, 2025
Apr 3, 2025
Apr 3, 2025
Apr 3, 2025
Apr 3, 2025
Apr 3, 2025
Apr 3, 2025
Apr 3, 2025
Apr 3, 2025
Apr 2, 2025
Apr 2, 2025
Apr 2, 2025
Apr 2, 2025
Apr 2, 2025
Apr 2, 2025
Apr 2, 2025
Mar 28, 2025
Mar 28, 2025
Mar 28, 2025
Mar 6, 2025
Mar 6, 2025
Mar 6, 2025
Mar 5, 2025
Mar 5, 2025
Mar 5, 2025
Mar 5, 2025
Mar 5, 2025
Mar 5, 2025
Mar 5, 2025
Mar 5, 2025
Mar 5, 2025
Mar 5, 2025
Mar 4, 2025
Mar 4, 2025
Mar 4, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 27, 2025
Feb 27, 2025
Feb 27, 2025
Feb 27, 2025
Feb 27, 2025
Feb 27, 2025
Jan 28, 2025
Jan 22, 2025
Aug 2, 2024
Aug 2, 2024
Aug 2, 2024
Aug 1, 2024
Aug 1, 2024
Aug 1, 2024
Aug 1, 2024
Aug 1, 2024
Aug 1, 2024
Jul 23, 2024
Jul 23, 2024
Jul 23, 2024
Jul 23, 2024
Jul 22, 2024
Jul 22, 2024
Jul 22, 2024
Jul 19, 2024
Jul 19, 2024
Jul 19, 2024
Jul 19, 2024
Jul 17, 2024
Jul 17, 2024
Jul 17, 2024
Jul 17, 2024
Jul 17, 2024
Jul 17, 2024
Jul 17, 2024
Jul 12, 2024
Jul 12, 2024
Jul 12, 2024
Jul 12, 2024
Jul 11, 2024
Jul 11, 2024
Jul 11, 2024
Jul 8, 2024
Jul 8, 2024
Jul 8, 2024
Jul 8, 2024
Jul 2, 2024
Jul 2, 2024
Jul 2, 2024
Jul 2, 2024
Jul 2, 2024
Jul 2, 2024
Jul 2, 2024
Feb 19, 2024
Feb 19, 2024
Feb 19, 2024
Feb 14, 2024
Feb 14, 2024
Feb 14, 2024
Jan 22, 2024
Jan 22, 2024
Jan 22, 2024
Jan 17, 2024
Jan 17, 2024
Jan 17, 2024
Dec 12, 2023
Dec 12, 2023
Sep 7, 2023
Sep 7, 2023
Sep 7, 2023
Aug 7, 2023
Aug 7, 2023
Aug 7, 2023
Aug 2, 2023
Aug 2, 2023
Aug 2, 2023
Jul 19, 2023
Jul 19, 2023
Jul 19, 2023
Jul 14, 2023
Jul 14, 2023
Jul 14, 2023
May 10, 2023
May 10, 2023
May 10, 2023
May 3, 2023
May 3, 2023
May 3, 2023
May 3, 2023
May 3, 2023
May 3, 2023
May 3, 2023
May 3, 2023
May 3, 2023
May 3, 2023
May 3, 2023
May 3, 2023
May 3, 2023
May 3, 2023
May 3, 2023
May 3, 2023
May 3, 2023
May 3, 2023
May 3, 2023
May 3, 2023
May 3, 2023
May 3, 2023
May 3, 2023
May 3, 2023
May 3, 2023
May 3, 2023
May 3, 2023
May 3, 2023
May 3, 2023
May 3, 2023
May 3, 2023
May 3, 2023
May 3, 2023
May 3, 2023
May 3, 2023
Dec 1, 2022
Dec 1, 2022
Dec 1, 2022
Dec 1, 2022
Nov 25, 2022
Nov 25, 2022
Nov 25, 2022
Oct 24, 2022
Oct 24, 2022
Oct 24, 2022
Oct 24, 2022
Oct 18, 2022
Oct 17, 2022
Oct 14, 2022
Oct 12, 2022
Oct 12, 2022
Oct 12, 2022
Oct 12, 2022
Oct 12, 2022
Oct 12, 2022
Oct 12, 2022
Oct 12, 2022
Oct 12, 2022
Oct 12, 2022
Oct 12, 2022
Oct 12, 2022
Oct 12, 2022
Oct 12, 2022
Oct 12, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Oct 11, 2022
Jan 25, 2022
Dec 16, 2021
Dec 6, 2021
Dec 6, 2021
Dec 6, 2021
Dec 6, 2021
Dec 6, 2021
Nov 9, 2021
Nov 9, 2021
Nov 9, 2021
Nov 9, 2021
Nov 9, 2021
Aug 13, 2021
Aug 5, 2021
Aug 5, 2021
May 18, 2021
May 18, 2021
May 18, 2021
May 18, 2021
May 18, 2021
May 12, 2021
May 12, 2021
May 12, 2021
May 12, 2021
May 12, 2021
Apr 26, 2021
Apr 26, 2021
Nov 13, 2020
Nov 4, 2020
Nov 4, 2020
Nov 4, 2020
Nov 4, 2020
Nov 4, 2020
Nov 4, 2020
Nov 4, 2020
Nov 4, 2020
Aug 25, 2020
Jun 3, 2020
May 27, 2020
May 27, 2020
Jan 22, 2020
Jan 22, 2020
Dec 11, 2019
Aug 5, 2019
Aug 5, 2019
Aug 5, 2019
Aug 2, 2019
Aug 2, 2019
Jul 24, 2019
Jul 24, 2019
Jul 24, 2019
Jul 18, 2019
Jun 24, 2019
Jun 24, 2019
Jun 24, 2019
Jun 24, 2019
Jun 24, 2019
Jan 31, 2019
Jan 18, 2019
Jan 18, 2019
Jan 18, 2019
Jan 18, 2019
Jan 18, 2019
Nov 12, 2018
Sep 27, 2018
Sep 27, 2018
Sep 27, 2018
Jul 25, 2018
Jul 19, 2018
Jul 19, 2018
Jul 19, 2018
Jul 17, 2018
Jul 11, 2018
Jun 5, 2018
May 29, 2018
May 29, 2018
May 29, 2018
Apr 9, 2018
Mar 22, 2018
Mar 14, 2018
Mar 14, 2018
Mar 7, 2018
Feb 21, 2018
Feb 21, 2018
Feb 21, 2018
Feb 21, 2018
Feb 5, 2018
Jan 4, 2018
Jan 4, 2018
Jan 4, 2018
Jan 4, 2018
Nov 8, 2017
Nov 8, 2017
Nov 8, 2017
Nov 8, 2017
Nov 8, 2017
Nov 8, 2017
Nov 8, 2017
Sep 9, 2008
Sep 9, 2008