Patent No. EP4031117 (titled "Agent For Use In Treatment Or Prevention Of Ophthalmic Disorders") was filed by Chiesi Farmaceutici on Sep 15, 2020. The application was issued on Jul 24, 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 |
|---|---|---|
| STRAWMAN | Apr 23, 2025 | HOFFMANN EITLE |
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
May 8, 2026
May 7, 2026
May 6, 2026
Apr 30, 2026
Apr 30, 2026
Apr 30, 2026
Apr 30, 2026
Apr 30, 2026
Apr 30, 2026
Apr 30, 2026
Apr 30, 2026
Apr 30, 2026
Apr 30, 2026
Apr 30, 2026
Apr 30, 2026
Apr 30, 2026
Apr 30, 2026
Apr 30, 2026
Apr 30, 2026
Apr 29, 2026
Apr 29, 2026
Apr 29, 2026
Apr 29, 2026
Apr 29, 2026
Apr 29, 2026
Apr 29, 2026
Apr 29, 2026
Apr 29, 2026
Apr 29, 2026
Apr 29, 2026
Apr 29, 2026
Apr 29, 2026
Apr 29, 2026
Apr 29, 2026
Apr 29, 2026
Apr 29, 2026
Apr 29, 2026
Apr 29, 2026
Apr 29, 2026
Apr 29, 2026
Apr 29, 2026
Apr 29, 2026
Apr 29, 2026
Feb 17, 2026
Feb 17, 2026
Feb 12, 2026
Feb 12, 2026
Feb 12, 2026
Jan 23, 2026
Jan 23, 2026
Jan 21, 2026
Jan 20, 2026
Jan 20, 2026
Jan 20, 2026
Jan 20, 2026
Nov 26, 2025
Nov 26, 2025
Nov 26, 2025
Nov 26, 2025
Nov 26, 2025
Sep 11, 2025
Sep 8, 2025
Sep 8, 2025
Sep 8, 2025
May 8, 2025
May 8, 2025
Apr 28, 2025
Apr 23, 2025
Apr 23, 2025
Apr 23, 2025
Apr 23, 2025
Apr 23, 2025
Apr 23, 2025
Apr 23, 2025
Apr 23, 2025
Apr 23, 2025
Apr 23, 2025
Apr 23, 2025
Apr 23, 2025
Apr 23, 2025
Apr 23, 2025
Apr 23, 2025
Apr 23, 2025
Apr 23, 2025
Apr 23, 2025
Apr 23, 2025
Apr 23, 2025
Apr 23, 2025
Apr 23, 2025
Apr 23, 2025
Apr 23, 2025
Apr 23, 2025
Aug 6, 2024
Jun 27, 2024
Jun 17, 2024
Jun 17, 2024
Jun 17, 2024
Jun 17, 2024
Jun 17, 2024
Feb 20, 2024
Feb 20, 2024
Feb 20, 2024
Feb 20, 2024
Feb 20, 2024
Feb 20, 2024
Nov 23, 2023
Nov 23, 2023
Nov 23, 2023
Nov 23, 2023
Nov 23, 2023
Nov 23, 2023
Nov 23, 2023
Jun 2, 2023
May 30, 2023
May 30, 2023
May 30, 2023
May 30, 2023
May 24, 2023
Oct 25, 2022
Oct 25, 2022
Oct 25, 2022
Oct 25, 2022
Oct 25, 2022
Jun 29, 2022
May 2, 2022
Apr 26, 2022
Apr 19, 2022
Apr 4, 2022
Apr 4, 2022
Apr 4, 2022
Jan 28, 2022
Apr 12, 2021
Mar 25, 2021
Mar 25, 2021
Mar 25, 2021
Oct 15, 2020
Oct 15, 2020
Oct 15, 2020
Oct 15, 2020
Oct 6, 2020
Oct 6, 2020
Oct 6, 2020
Oct 6, 2020
Oct 6, 2020
Oct 5, 2020
Oct 5, 2020
Oct 5, 2020
Oct 5, 2020
Oct 2, 2020
Oct 1, 2020
Oct 1, 2020
Sep 28, 2020
Sep 15, 2020
Sep 15, 2020
Sep 15, 2020
Sep 15, 2020
Sep 15, 2020
Sep 15, 2020
Sep 15, 2020