Patent No. EP3798214 (titled "Modulators Of Cystic Fibrosis Transmembrane Conductance Regulator") was filed by Vertex Pharmaceuticals Incorporated on Oct 6, 2015. The application was issued on Sep 14, 2022.
Compounds for treating cystic fibrosis (CF) by modulating CFTR chloride channel function. The compounds are CFTR potentiators that increase CFTR activity and anion transport. They can be used alone or in combination with other CFTR modulators to enhance CFTR function. The compounds have structures containing a 6-substituted 3-methylpyridine ring linked to a benzamide or benzoic acid moiety. They can be used as pharmaceuticals to treat CF by improving CFTR function in patients with CFTR mutations.

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 |
|---|---|---|
| GENERICS UK | Jun 12, 2023 | ELKINGTON AND FIFE |
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
Dec 18, 2025
Dec 18, 2025
Dec 18, 2025
Dec 18, 2025
Dec 18, 2025
Dec 18, 2025
Dec 18, 2025
Jan 27, 2025
Jan 27, 2025
Jan 27, 2025
Jan 27, 2025
Jan 27, 2025
Jan 15, 2025
Jan 15, 2025
Jan 14, 2025
Jan 10, 2025
Jan 10, 2025
Jan 10, 2025
Jan 10, 2025
Jan 10, 2025
Jan 10, 2025
Jan 10, 2025
Jan 10, 2025
Jan 10, 2025
Jan 10, 2025
Jan 10, 2025
Jan 10, 2025
Jan 10, 2025
Jan 3, 2025
Dec 20, 2024
Dec 20, 2024
Dec 20, 2024
Nov 14, 2024
Nov 14, 2024
Nov 14, 2024
Nov 14, 2024
Nov 14, 2024
Nov 14, 2024
Nov 14, 2024
Nov 8, 2024
Oct 30, 2024
Oct 30, 2024
Oct 30, 2024
Oct 30, 2024
Mar 12, 2024
Mar 12, 2024
Mar 12, 2024
Mar 12, 2024
Mar 12, 2024
Mar 12, 2024
Mar 12, 2024
Nov 14, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Jun 28, 2023
Jun 28, 2023
Jun 15, 2023
Jun 12, 2023
Jun 12, 2023
Jun 12, 2023
Jun 12, 2023
Jun 12, 2023
Jun 12, 2023
Jun 12, 2023
Sep 27, 2022
Aug 19, 2022
Aug 5, 2022
Aug 5, 2022
Aug 5, 2022
Aug 5, 2022
Aug 5, 2022
Mar 30, 2022
Mar 30, 2022
Mar 30, 2022
Mar 30, 2022
Mar 30, 2022
Feb 21, 2022
Oct 22, 2021
Oct 22, 2021
Oct 22, 2021
Oct 22, 2021
Oct 22, 2021
Sep 30, 2021
Sep 30, 2021
Sep 30, 2021
Sep 30, 2021
Sep 30, 2021
Aug 13, 2021
Aug 5, 2021
Aug 5, 2021
Apr 7, 2021
Mar 9, 2021
Mar 3, 2021
Feb 26, 2021
Feb 26, 2021
Feb 26, 2021
Feb 26, 2021
Feb 22, 2021
Feb 3, 2021
Nov 18, 2020
Nov 13, 2020
Nov 13, 2020
Nov 13, 2020
Nov 13, 2020
Nov 13, 2020
Nov 12, 2020
Nov 12, 2020
Nov 12, 2020
Nov 12, 2020
Nov 9, 2020
Nov 5, 2020
Nov 5, 2020
Nov 5, 2020
Nov 3, 2020
Oct 29, 2020
Oct 27, 2020
Sep 22, 2020
Sep 22, 2020
Sep 22, 2020
Sep 22, 2020
Sep 22, 2020
Sep 22, 2020
Sep 22, 2020
Sep 22, 2020
Sep 22, 2020
Sep 22, 2020
Sep 22, 2020
Sep 22, 2020
Sep 22, 2020
Sep 22, 2020
Sep 22, 2020
Sep 22, 2020
Sep 22, 2020
Sep 22, 2020
Sep 22, 2020
Sep 22, 2020
Sep 22, 2020
Sep 22, 2020
Sep 22, 2020
Sep 22, 2020
Sep 22, 2020
Sep 22, 2020
Sep 4, 2020
Jul 30, 2020
Jul 30, 2020
Jul 30, 2020
Jul 30, 2020
Jul 30, 2020
Jul 30, 2020
Jul 30, 2020
May 4, 2016
May 4, 2016
May 4, 2016