Patent No. EP3119423 (titled "Treatment Of Cancer Using Chimeric Antigen Receptor") was filed by Novartis on Mar 13, 2015. The application was issued on Dec 14, 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 |
|---|---|---|
| MARGARET DIXON | Sep 14, 2023 | MEWBURN ELLIS |
| PATENT BOUTIQUE | Sep 14, 2023 | - |
| MURGITROYD | Sep 13, 2023 | - |
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 19, 2026
Jan 19, 2026
Jan 19, 2026
Jan 19, 2026
Dec 22, 2025
Dec 22, 2025
Dec 22, 2025
Dec 17, 2025
Dec 17, 2025
Dec 17, 2025
Dec 17, 2025
Nov 24, 2025
Nov 24, 2025
Nov 24, 2025
Nov 24, 2025
Nov 24, 2025
Nov 24, 2025
Nov 24, 2025
May 2, 2025
May 2, 2025
Jun 13, 2024
Jun 13, 2024
Jun 13, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Jun 7, 2024
Apr 11, 2024
Apr 11, 2024
Apr 11, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Apr 8, 2024
Jan 18, 2024
Jan 18, 2024
Jan 18, 2024
Jan 18, 2024
Jan 12, 2024
Jan 12, 2024
Jan 12, 2024
Sep 28, 2023
Sep 28, 2023
Sep 28, 2023
Sep 28, 2023
Sep 20, 2023
Sep 20, 2023
Sep 19, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Sep 13, 2023
Jan 18, 2023
Nov 17, 2022
Nov 10, 2022
Nov 4, 2022
Nov 4, 2022
Nov 4, 2022
Nov 4, 2022
Nov 4, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Jul 5, 2022
Feb 14, 2022
Feb 14, 2022
Feb 14, 2022
Feb 14, 2022
Feb 14, 2022
Dec 7, 2021
Dec 7, 2021
Dec 7, 2021
Dec 1, 2021
Dec 1, 2021
Dec 1, 2021
Dec 1, 2021
Dec 1, 2021
Nov 24, 2021
Nov 24, 2021
Nov 24, 2021
Nov 17, 2021
Nov 17, 2021
Nov 17, 2021
Nov 17, 2021
Nov 17, 2021
Nov 17, 2021
Nov 17, 2021
Nov 17, 2021
Nov 17, 2021
Jun 24, 2021
Jun 24, 2021
Jun 23, 2021
May 12, 2021
May 12, 2021
May 6, 2021
Apr 9, 2021
Apr 9, 2021
Apr 1, 2021
Apr 1, 2021
Apr 1, 2021
Mar 26, 2021
Mar 26, 2021
Mar 26, 2021
Mar 9, 2021
Mar 9, 2021
Jan 21, 2021
Jan 21, 2021
Jan 21, 2021
Aug 5, 2019
Jul 26, 2019
Jul 26, 2019
Jul 26, 2019
Jul 26, 2019
Jul 26, 2019
May 16, 2019
Feb 8, 2019
Feb 4, 2019
Feb 4, 2019
Feb 4, 2019
Oct 5, 2018
Oct 5, 2018
Oct 5, 2018
Oct 5, 2018
Sep 26, 2018
Jul 26, 2018
Jul 26, 2018
Jul 26, 2018
May 30, 2018
May 30, 2018
May 24, 2018
Apr 27, 2017
Apr 27, 2017
Apr 27, 2017
Apr 27, 2017
Apr 27, 2017
Jan 4, 2017
Oct 21, 2016
Oct 20, 2016
Oct 19, 2016
Oct 19, 2016
Oct 19, 2016
Oct 19, 2016
Oct 6, 2016
Sep 30, 2016
Sep 30, 2016
Sep 30, 2016
Sep 30, 2016
Sep 30, 2016
Aug 8, 2016
Jul 29, 2016
Nov 12, 2015
Nov 12, 2015
Oct 13, 2015
Oct 13, 2015
Oct 13, 2015
Oct 13, 2015
Sep 24, 2015
Sep 14, 2015
Sep 11, 2015
Sep 11, 2015
Sep 11, 2015
May 26, 2015
Mar 23, 2015
Mar 23, 2015
Mar 23, 2015
Mar 23, 2015
Mar 23, 2015