Patent No. EP3722434 (titled "Plasmid System") was filed by Ascend Gene And Cell Therapies on Apr 12, 2019. The application was issued on Jul 27, 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.
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 21, 2026
Jan 21, 2026
Jan 21, 2026
Jan 15, 2026
Oct 8, 2025
Oct 8, 2025
Oct 8, 2025
Oct 8, 2025
Oct 8, 2025
Oct 8, 2025
Oct 8, 2025
Oct 8, 2025
Oct 8, 2025
Oct 8, 2025
Oct 8, 2025
Oct 8, 2025
Oct 8, 2025
Oct 8, 2025
Sep 25, 2025
Sep 23, 2025
Sep 19, 2025
Sep 19, 2025
Sep 19, 2025
Sep 19, 2025
Sep 19, 2025
Sep 1, 2025
Aug 27, 2025
Aug 27, 2025
Aug 27, 2025
Aug 11, 2025
Jul 31, 2025
Jul 31, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Jul 25, 2025
Dec 17, 2024
Dec 17, 2024
Dec 17, 2024
Dec 17, 2024
Dec 17, 2024
Apr 25, 2024
Apr 22, 2024
Apr 22, 2024
Apr 22, 2024
Apr 22, 2024
Apr 22, 2024
Nov 30, 2023
Nov 30, 2023
Nov 30, 2023
Nov 24, 2023
Nov 24, 2023
Nov 24, 2023
Nov 24, 2023
Nov 24, 2023
Sep 27, 2023
Sep 22, 2023
Sep 22, 2023
Sep 22, 2023
Sep 22, 2023
Sep 22, 2023
Sep 22, 2023
Sep 22, 2023
Sep 22, 2023
Sep 22, 2023
Sep 22, 2023
Sep 22, 2023
Sep 22, 2023
Sep 22, 2023
Sep 22, 2023
Sep 22, 2023
Sep 22, 2023
Sep 22, 2023
Sep 22, 2023
Sep 22, 2023
Sep 22, 2023
Sep 22, 2023
Sep 22, 2023
May 12, 2023
May 12, 2023
May 4, 2023
Apr 27, 2023
Apr 27, 2023
Apr 27, 2023
Apr 27, 2023
Apr 27, 2023
Apr 27, 2023
Apr 27, 2023
Apr 27, 2023
Apr 27, 2023
Apr 27, 2023
Apr 27, 2023
Apr 27, 2023
Apr 27, 2023
Apr 27, 2023
Apr 27, 2023
Apr 27, 2023
Apr 27, 2023
Apr 25, 2023
Apr 18, 2023
Apr 18, 2023
Apr 18, 2023
Apr 18, 2023
Aug 9, 2022
Jun 30, 2022
Jun 15, 2022
Jun 15, 2022
Jun 15, 2022
Jun 15, 2022
Jun 15, 2022
May 12, 2022
May 12, 2022
May 12, 2022
May 12, 2022
May 12, 2022
May 12, 2022
Apr 1, 2022
Apr 1, 2022
Apr 1, 2022
Apr 1, 2022
Apr 1, 2022
Apr 1, 2022
Apr 1, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Mar 10, 2022
Feb 10, 2022
Feb 10, 2022
Jan 27, 2022
Nov 15, 2021
Sep 20, 2021
Apr 13, 2021
Apr 13, 2021
Apr 13, 2021
Apr 13, 2021
Apr 13, 2021
Oct 19, 2020
Sep 16, 2020
Aug 10, 2020
Aug 10, 2020
Aug 10, 2020
Jul 31, 2020
Jul 31, 2020
Jul 31, 2020
Jul 31, 2020
Oct 25, 2019
Oct 25, 2019
Oct 25, 2019
Oct 25, 2019
Aug 29, 2019
Jun 21, 2019
Jun 21, 2019
Jun 21, 2019
Jun 21, 2019
Jun 14, 2019
May 28, 2019
May 14, 2019
May 14, 2019
Apr 12, 2019
Apr 12, 2019
Apr 12, 2019
Apr 12, 2019
Apr 12, 2019
Apr 12, 2019
Apr 12, 2019
Apr 12, 2019