Patent No. EP3743559 (titled "Stock Rail") was filed by Voestalpine Railway Systems on Jun 11, 2019. The application was issued on Mar 16, 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 |
|---|---|---|
| VOSSLOH COGIFER | Dec 16, 2022 | HOLZWARTH ROCHFORD |
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 15, 2025
Dec 12, 2025
Dec 12, 2025
Dec 12, 2025
Dec 12, 2025
Dec 12, 2025
Dec 12, 2025
Dec 12, 2025
Dec 12, 2025
Dec 12, 2025
Dec 12, 2025
Dec 12, 2025
Dec 12, 2025
Dec 12, 2025
Dec 12, 2025
Dec 12, 2025
Dec 12, 2025
Dec 12, 2025
Dec 12, 2025
Aug 14, 2025
Aug 11, 2025
Aug 11, 2025
Aug 11, 2025
Jun 16, 2025
Jun 16, 2025
Jun 6, 2025
Jun 6, 2025
Jun 6, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Mar 18, 2025
Mar 18, 2025
Mar 17, 2025
Mar 17, 2025
Mar 17, 2025
Mar 17, 2025
Mar 17, 2025
Mar 17, 2025
Mar 17, 2025
Jan 22, 2025
Jan 17, 2025
Jan 17, 2025
Jan 17, 2025
Jan 17, 2025
Jan 17, 2025
Jan 17, 2025
Jan 17, 2025
Jan 16, 2025
Jan 13, 2025
Jan 13, 2025
Aug 13, 2024
Aug 9, 2024
Aug 9, 2024
Aug 8, 2024
Aug 7, 2024
Aug 7, 2024
Aug 7, 2024
Aug 7, 2024
Aug 7, 2024
Aug 2, 2024
Aug 2, 2024
Aug 2, 2024
Jan 8, 2024
Dec 22, 2023
Dec 22, 2023
Dec 22, 2023
Oct 2, 2023
Sep 26, 2023
Sep 26, 2023
Sep 26, 2023
Sep 26, 2023
Sep 26, 2023
May 26, 2023
May 19, 2023
May 19, 2023
May 19, 2023
May 19, 2023
May 19, 2023
May 19, 2023
May 19, 2023
May 19, 2023
May 19, 2023
May 19, 2023
May 19, 2023
May 19, 2023
May 19, 2023
May 19, 2023
May 19, 2023
May 19, 2023
May 19, 2023
May 19, 2023
May 19, 2023
May 19, 2023
May 19, 2023
May 19, 2023
May 19, 2023
Jan 9, 2023
Jan 9, 2023
Jan 4, 2023
Dec 22, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Mar 29, 2022
Feb 17, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Oct 7, 2021
Oct 7, 2021
Oct 7, 2021
Oct 7, 2021
Oct 7, 2021
Sep 15, 2021
Jan 11, 2021
Nov 4, 2020
Sep 23, 2020
Sep 21, 2020
Sep 21, 2020
Sep 17, 2020
Sep 15, 2020
Aug 27, 2020
Aug 27, 2020
May 21, 2020
May 21, 2020
May 21, 2020
May 21, 2020
Jan 10, 2020
Dec 19, 2019
Dec 19, 2019
Dec 19, 2019
Aug 2, 2019
Aug 2, 2019
Aug 2, 2019
Aug 2, 2019
Aug 2, 2019
Aug 2, 2019
Jul 5, 2019
Jun 21, 2019
Jun 21, 2019
Jun 21, 2019
Jun 21, 2019
Jun 21, 2019