The weekly litigation news digest is live. Subscribe now
Patent No. EP3466455 (titled "Oxidized Regenerated Cellulose Hemostatic Powders And Methods Of Making") was filed by Ethicon on May 22, 2013. The application was issued on Jan 19, 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 |
|---|---|---|
| BAXTER | Oct 19, 2022 | SONN PATENTANWALTE |
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 22, 2026
Jan 22, 2026
Jan 22, 2026
Jan 22, 2026
Jan 22, 2026
Jan 14, 2026
Jan 9, 2026
Jan 9, 2026
Jan 9, 2026
Jan 9, 2026
Jan 9, 2026
Jan 5, 2026
Dec 22, 2025
Dec 22, 2025
Dec 22, 2025
Dec 5, 2025
Dec 5, 2025
Oct 28, 2025
Oct 23, 2025
Oct 23, 2025
Oct 23, 2025
Apr 3, 2025
Apr 3, 2025
Mar 31, 2025
Feb 21, 2025
Jan 27, 2025
Jan 27, 2025
Jan 22, 2025
Dec 2, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Nov 26, 2024
Jul 26, 2024
Jul 22, 2024
Jul 22, 2024
Jul 22, 2024
Jul 22, 2024
Apr 25, 2024
Apr 25, 2024
Apr 18, 2024
Apr 18, 2024
Apr 18, 2024
Mar 20, 2024
Mar 20, 2024
Mar 20, 2024
Mar 20, 2024
Mar 20, 2024
Mar 20, 2024
Mar 20, 2024
Mar 20, 2024
Mar 20, 2024
Mar 20, 2024
Mar 20, 2024
Mar 20, 2024
Mar 20, 2024
Feb 6, 2024
Dec 11, 2023
Dec 6, 2023
Dec 6, 2023
Dec 6, 2023
Dec 6, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Dec 1, 2023
Oct 20, 2023
Oct 20, 2023
Oct 20, 2023
Oct 10, 2023
Oct 5, 2023
Oct 5, 2023
Oct 5, 2023
Sep 27, 2023
Sep 22, 2023
Sep 22, 2023
Sep 22, 2023
Sep 22, 2023
Jun 14, 2023
Jun 12, 2023
Jun 12, 2023
Jun 12, 2023
Jun 12, 2023
Jun 12, 2023
Jun 12, 2023
Jun 12, 2023
Jun 12, 2023
Mar 16, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Nov 3, 2022
Nov 3, 2022
Oct 25, 2022
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Feb 1, 2022
Dec 23, 2021
Dec 8, 2021
Dec 8, 2021
Dec 8, 2021
Dec 8, 2021
Dec 8, 2021
Aug 13, 2021
Aug 5, 2021
Aug 5, 2021
Jul 30, 2021
Jul 30, 2021
Jul 30, 2021
Jul 30, 2021
Jul 30, 2021
Nov 6, 2020
Nov 6, 2020
Nov 6, 2020
Nov 6, 2020
Nov 6, 2020
Nov 6, 2020
Nov 6, 2020
Jun 30, 2020
Jun 30, 2020
Jun 23, 2020
Feb 7, 2020
Jan 23, 2020
Jan 23, 2020
Jan 23, 2020
Jan 23, 2020
Jan 23, 2020
Jan 23, 2020
Jan 23, 2020
Nov 26, 2019
Oct 10, 2019
Oct 10, 2019
Oct 10, 2019
Apr 15, 2019
Mar 13, 2019
Jan 9, 2019
Jan 3, 2019
Jan 3, 2019
Jan 3, 2019
Jan 3, 2019
Dec 11, 2018
Nov 26, 2018
Nov 26, 2018
Nov 26, 2018
Nov 26, 2018
Nov 14, 2018
Nov 14, 2018
Oct 18, 2018
Sep 21, 2018
Sep 21, 2018
Sep 21, 2018
Sep 21, 2018
Sep 21, 2018
Sep 21, 2018
Sep 21, 2018
Dec 19, 2013