Patent No. EP3217983 (titled "Enhancement Of Tumor Response To Chemotherapy By Activation Of The Asmase/Ceramide Pathway Through Timed Administration Of A Short-Acting Anti-Angiogenic Agent") was filed by Memorial Sloan Kettering Cancer Center on Nov 12, 2015. The application was issued on May 1, 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 |
|---|---|---|
| HAMM & WITTKOPP | Jan 31, 2025 | 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
Jun 8, 2026
Jun 8, 2026
Jun 8, 2026
Jun 3, 2026
Jun 3, 2026
Apr 13, 2026
Apr 9, 2026
Apr 9, 2026
Apr 9, 2026
Apr 9, 2026
Apr 9, 2026
Apr 9, 2026
Apr 9, 2026
Apr 9, 2026
Apr 9, 2026
Apr 9, 2026
Apr 9, 2026
Apr 9, 2026
Apr 9, 2026
Apr 9, 2026
Apr 9, 2026
Apr 9, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Mar 30, 2026
Mar 27, 2026
Mar 27, 2026
Mar 27, 2026
Sep 24, 2025
Sep 24, 2025
Sep 24, 2025
Sep 24, 2025
Sep 24, 2025
Jun 20, 2025
Jun 16, 2025
Jun 16, 2025
Jun 16, 2025
Jun 16, 2025
Jun 16, 2025
Jun 16, 2025
Jun 16, 2025
Jun 16, 2025
Feb 14, 2025
Feb 14, 2025
Feb 6, 2025
Jan 31, 2025
Jan 31, 2025
Jan 31, 2025
Jan 31, 2025
Jan 31, 2025
Jan 31, 2025
Jan 31, 2025
Jan 31, 2025
Jan 31, 2025
May 15, 2024
Apr 5, 2024
Mar 22, 2024
Mar 22, 2024
Mar 22, 2024
Mar 22, 2024
Mar 22, 2024
Nov 23, 2023
Nov 23, 2023
Nov 23, 2023
Nov 23, 2023
Nov 23, 2023
Nov 23, 2023
Oct 24, 2023
Oct 24, 2023
Oct 24, 2023
Oct 24, 2023
Oct 24, 2023
Oct 24, 2023
Oct 24, 2023
Jun 21, 2023
Jun 21, 2023
Jun 21, 2023
Jun 21, 2023
Jun 21, 2023
Jun 21, 2023
Jun 2, 2023
Jun 2, 2023
Jun 2, 2023
Jun 2, 2023
Jun 2, 2023
Jun 2, 2023
Jun 2, 2023
Feb 2, 2023
Feb 2, 2023
Feb 2, 2023
Feb 2, 2023
Feb 2, 2023
Feb 2, 2023
May 28, 2021
May 28, 2021
May 28, 2021
May 28, 2021
May 28, 2021
May 28, 2021
May 28, 2021
Mar 5, 2021
Mar 2, 2021
Mar 2, 2021
Dec 1, 2020
Dec 1, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
May 11, 2020
Jan 7, 2020
Jan 7, 2020
Dec 19, 2019
Dec 31, 2018
Dec 31, 2018
Dec 31, 2018
Dec 31, 2018
Dec 31, 2018
Dec 31, 2018
Dec 31, 2018
Dec 31, 2018
Dec 31, 2018
Dec 31, 2018
Dec 31, 2018
Dec 31, 2018
Dec 31, 2018
Jun 21, 2018
Jun 4, 2018
Jun 4, 2018
Jun 4, 2018
Jun 4, 2018
May 16, 2018
Feb 20, 2018
Feb 14, 2018
Dec 21, 2017
Dec 21, 2017
Dec 21, 2017
Dec 21, 2017
Dec 21, 2017
Aug 23, 2017
Jun 29, 2017
Jun 27, 2017
Jun 27, 2017
Jun 27, 2017
Jun 27, 2017
Jun 6, 2017
Jun 6, 2017
May 31, 2017
Mar 24, 2017
Jun 7, 2016
May 19, 2016