Patent No. EP3503589 (titled "A Hearing Aid Having Combined Antennas") was filed by GN Hearing on Jun 22, 2015. The application was issued on Jul 20, 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 |
|---|---|---|
| OTICON WIDEX | Apr 20, 2023 | COHAUSZ & FLORACK |
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 28, 2026
Jan 27, 2026
Jan 21, 2026
Jan 21, 2026
Jan 21, 2026
Oct 9, 2025
Oct 9, 2025
Oct 9, 2025
Oct 6, 2025
Jul 11, 2025
Jul 11, 2025
Jul 7, 2025
Jul 7, 2025
Jul 7, 2025
Jun 26, 2025
Jun 26, 2025
Jun 26, 2025
Jun 26, 2025
Jun 26, 2025
Jun 26, 2025
Jun 26, 2025
Jun 26, 2025
Jun 26, 2025
Jun 26, 2025
Jun 26, 2025
Jun 26, 2025
Jun 26, 2025
Mar 6, 2025
Mar 6, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Jan 9, 2025
Jan 9, 2025
Jan 9, 2025
Jan 9, 2025
Dec 27, 2024
Dec 27, 2024
Dec 27, 2024
Dec 20, 2024
Dec 20, 2024
Dec 20, 2024
Oct 29, 2024
Oct 29, 2024
Oct 29, 2024
Oct 29, 2024
Oct 29, 2024
Oct 29, 2024
Oct 29, 2024
Oct 29, 2024
Oct 29, 2024
Oct 29, 2024
Oct 29, 2024
Oct 29, 2024
Oct 29, 2024
Oct 29, 2024
Oct 29, 2024
Oct 7, 2024
Oct 2, 2024
Oct 1, 2024
Oct 1, 2024
Oct 1, 2024
Oct 1, 2024
Oct 1, 2024
Oct 1, 2024
Oct 1, 2024
Oct 1, 2024
Oct 1, 2024
Oct 1, 2024
Aug 9, 2024
Aug 8, 2024
Aug 2, 2024
Aug 2, 2024
Aug 2, 2024
Aug 2, 2024
Aug 2, 2024
Aug 2, 2024
Aug 2, 2024
Aug 2, 2024
Aug 2, 2024
Aug 2, 2024
Aug 2, 2024
Aug 2, 2024
Aug 2, 2024
Aug 2, 2024
Aug 2, 2024
Aug 2, 2024
Aug 2, 2024
Aug 2, 2024
Aug 2, 2024
Aug 2, 2024
Jul 18, 2024
Jul 15, 2024
Jul 15, 2024
Jul 15, 2024
Feb 29, 2024
Feb 29, 2024
Feb 29, 2024
Feb 29, 2024
Feb 29, 2024
Feb 29, 2024
Feb 29, 2024
Sep 20, 2023
Sep 18, 2023
Sep 18, 2023
Sep 14, 2023
Sep 14, 2023
Sep 14, 2023
Sep 11, 2023
Sep 11, 2023
Sep 11, 2023
May 4, 2023
May 4, 2023
Apr 26, 2023
Apr 20, 2023
Apr 20, 2023
Apr 20, 2023
Apr 20, 2023
Apr 20, 2023
Apr 20, 2023
Apr 20, 2023
Apr 20, 2023
Apr 20, 2023
Apr 20, 2023
Apr 20, 2023
Apr 20, 2023
Apr 20, 2023
Apr 20, 2023
Apr 20, 2023
Apr 20, 2023
Apr 20, 2023
Apr 20, 2023
Aug 2, 2022
Jun 30, 2022
Jun 30, 2022
Jun 27, 2022
Jun 27, 2022
Jun 27, 2022
Jun 23, 2022
May 31, 2022
May 31, 2022
May 31, 2022
May 31, 2022
May 31, 2022
Mar 17, 2022
Mar 17, 2022
Mar 17, 2022
Mar 17, 2022
Mar 17, 2022
Jun 24, 2021
Jun 24, 2021
Jun 24, 2021
Jun 24, 2021
Jun 24, 2021
Jun 7, 2021
Jun 7, 2021
Mar 10, 2021
Mar 10, 2021
Aug 6, 2020
Aug 6, 2020
Aug 6, 2020
Aug 6, 2020
Aug 6, 2020
May 14, 2020
May 11, 2020
May 11, 2020
Jan 28, 2020
Jan 28, 2020
Jan 21, 2020
Dec 18, 2019
Dec 18, 2019
Dec 18, 2019
Dec 18, 2019
Dec 18, 2019
Dec 18, 2019
Dec 18, 2019
Jul 1, 2019
Jun 11, 2019
May 29, 2019
May 16, 2019
May 16, 2019
May 16, 2019
May 16, 2019
May 3, 2019
Apr 9, 2019
Feb 14, 2019
Feb 14, 2019
Feb 14, 2019
Feb 14, 2019
Feb 14, 2019
Feb 14, 2019
Feb 14, 2019
Feb 14, 2019
Feb 14, 2019