Patent No. EP4111949 (titled "Transcutaneous Analyte Sensors, Applicators Therefor, And Needle Hub Comprising Anti-Rotation Feature") was filed by Dexcom on Jun 22, 2018. The application was issued on Jul 26, 2023.
Latest UPC cases involving this patent.
| Case Number | Filing Date | Plaintiff | Proceeding Type |
|---|---|---|---|
| CC_9804/2024 | Feb 23, 2024 | Abbott | Counter Claim For Revocation |
| UPC_CFI_396/2023 | Oct 30, 2023 | Dexcom | Infringement |

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
Feb 5, 2026
Jan 27, 2026
Jan 27, 2026
Jan 27, 2026
Jan 27, 2026
Jan 27, 2026
Oct 28, 2025
Oct 28, 2025
Oct 23, 2025
Jul 21, 2025
Jul 21, 2025
Jul 21, 2025
Jul 21, 2025
Jul 21, 2025
Jul 21, 2025
Jul 21, 2025
Jul 21, 2025
Jul 21, 2025
Jul 21, 2025
Jul 21, 2025
Jul 21, 2025
Jul 21, 2025
May 26, 2025
Apr 24, 2025
Apr 24, 2025
Apr 24, 2025
Apr 24, 2025
Apr 24, 2025
Apr 24, 2025
Apr 24, 2025
Apr 24, 2025
Apr 24, 2025
Apr 24, 2025
Apr 24, 2025
Apr 24, 2025
Apr 24, 2025
Apr 24, 2025
Apr 24, 2025
Apr 24, 2025
Apr 24, 2025
Apr 24, 2025
Apr 24, 2025
Apr 24, 2025
Apr 24, 2025
Apr 24, 2025
Apr 24, 2025
Apr 24, 2025
Apr 24, 2025
Apr 24, 2025
Apr 22, 2025
Apr 22, 2025
Apr 22, 2025
Jan 20, 2025
Jan 10, 2025
Jan 10, 2025
Jan 10, 2025
Dec 27, 2024
Dec 27, 2024
Dec 27, 2024
Dec 27, 2024
Dec 27, 2024
Dec 27, 2024
Oct 29, 2024
Oct 29, 2024
Oct 29, 2024
Oct 29, 2024
Oct 29, 2024
Oct 29, 2024
Aug 20, 2024
Aug 20, 2024
Aug 14, 2024
Aug 14, 2024
Aug 14, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 13, 2024
May 13, 2024
May 13, 2024
May 10, 2024
May 10, 2024
May 10, 2024
May 10, 2024
May 8, 2024
May 7, 2024
May 7, 2024
May 7, 2024
May 7, 2024
May 3, 2024
May 3, 2024
May 3, 2024
May 2, 2024
May 2, 2024
May 2, 2024
Apr 29, 2024
Apr 26, 2024
Apr 26, 2024
Apr 26, 2024
Apr 26, 2024
Apr 26, 2024
Apr 25, 2024
Apr 25, 2024
Apr 25, 2024
Apr 25, 2024
Apr 25, 2024
Apr 25, 2024
Apr 25, 2024
Apr 25, 2024
Apr 25, 2024
Apr 25, 2024
Apr 25, 2024
Apr 25, 2024
Apr 25, 2024
Apr 25, 2024
Apr 25, 2024
Apr 25, 2024
Apr 25, 2024
Apr 25, 2024
Apr 25, 2024
Apr 25, 2024
Apr 25, 2024
Apr 25, 2024
Apr 25, 2024
Apr 25, 2024
Apr 25, 2024
Apr 25, 2024
Apr 25, 2024
Apr 25, 2024
Apr 25, 2024
Apr 25, 2024
Aug 8, 2023
Jun 29, 2023
Jun 13, 2023
May 18, 2023
May 18, 2023
May 18, 2023
May 18, 2023
May 18, 2023
Mar 24, 2023
Mar 24, 2023
Mar 24, 2023
Mar 24, 2023
Mar 24, 2023
Mar 24, 2023
Feb 17, 2023
Jan 10, 2023
Dec 7, 2022
Nov 24, 2022
Nov 24, 2022
Nov 24, 2022
Nov 24, 2022
Nov 24, 2022
Nov 21, 2022
Nov 16, 2022
Nov 16, 2022
Nov 16, 2022
Nov 16, 2022
Aug 24, 2022
Aug 24, 2022
Aug 17, 2022
Aug 17, 2022
Aug 17, 2022
Aug 17, 2022
Aug 17, 2022
Jun 21, 2022
Jun 7, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
May 26, 2022
Feb 4, 2019
Feb 4, 2019