Patent No. EP3754146 (titled "Automatic Seal With Damper For Delaying Lowering") was filed by Athmer OHG on Jun 19, 2019. The application was issued on Aug 10, 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 |
|---|---|---|
| ASSA ABLOY SCHWEIZ | May 8, 2023 | CLERC |
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
Apr 28, 2026
Apr 20, 2026
Apr 20, 2026
Apr 20, 2026
Feb 18, 2026
Feb 18, 2026
Feb 13, 2026
Feb 13, 2026
Feb 13, 2026
Dec 19, 2025
Dec 19, 2025
Dec 19, 2025
Dec 19, 2025
Dec 19, 2025
Dec 19, 2025
Dec 19, 2025
Dec 19, 2025
Dec 19, 2025
Dec 19, 2025
Dec 19, 2025
Dec 19, 2025
Dec 19, 2025
Nov 16, 2025
Oct 31, 2025
Sep 24, 2025
Sep 18, 2025
Sep 18, 2025
Sep 18, 2025
Sep 18, 2025
Sep 18, 2025
Sep 18, 2025
Sep 18, 2025
Sep 18, 2025
Sep 18, 2025
Sep 18, 2025
Sep 12, 2025
Sep 9, 2025
Sep 9, 2025
Nov 6, 2024
Nov 6, 2024
Nov 6, 2024
Nov 6, 2024
Nov 6, 2024
Nov 6, 2024
Feb 2, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Oct 4, 2023
Sep 28, 2023
Sep 28, 2023
Sep 28, 2023
May 23, 2023
May 23, 2023
May 12, 2023
May 9, 2023
May 9, 2023
May 9, 2023
May 8, 2023
May 8, 2023
May 8, 2023
May 8, 2023
May 8, 2023
May 8, 2023
May 8, 2023
May 8, 2023
May 8, 2023
May 8, 2023
May 8, 2023
May 8, 2023
Aug 23, 2022
Jul 14, 2022
Jul 4, 2022
Jul 4, 2022
Jul 4, 2022
Jul 4, 2022
Feb 22, 2022
Feb 22, 2022
Feb 22, 2022
Feb 22, 2022
Feb 22, 2022
Jan 27, 2022
May 28, 2021
May 28, 2021
May 28, 2021
May 28, 2021
May 28, 2021
May 28, 2021
May 28, 2021
Jan 13, 2021
Nov 25, 2020
Dec 2, 2019
Dec 2, 2019
Dec 2, 2019
Dec 2, 2019
Nov 13, 2019
Sep 19, 2019
Sep 11, 2019
Sep 11, 2019
Sep 11, 2019
Aug 15, 2019
Aug 15, 2019
Aug 15, 2019
Aug 15, 2019
Aug 15, 2019
Jul 22, 2019
Jun 19, 2019
Jun 19, 2019
Jun 19, 2019
Jun 19, 2019
Jun 19, 2019
Jun 19, 2019
Jun 19, 2019