Patent No. EP4171996 (titled "Trailer System, Method For Transporting An Object By A Trailer System And Trailer Jack System") was filed by Mammoet Holding on Jun 29, 2021. The application was issued on Aug 28, 2024.
Latest UPC cases involving this patent.
| Case Number | Filing Date | Plaintiff | Proceeding Type |
|---|---|---|---|
| UPC_CFI_16/2025 | Jan 15, 2025 | Mammoet Holding | Generic |

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 |
|---|---|---|
| SARENS | May 28, 2025 | IPLODGE |
| SCHEUERLE FAHRZEUGFABRIK | May 26, 2025 | ULLRICH & NAUMANN PARTG MBB |
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
Jul 24, 2026
Jul 24, 2026
Jul 24, 2026
Jul 24, 2026
Jul 24, 2026
Jul 24, 2026
Jul 24, 2026
Jul 24, 2026
Jul 15, 2026
Jul 15, 2026
Jul 15, 2026
Jul 15, 2026
Jul 15, 2026
Jul 15, 2026
Jul 15, 2026
Jul 15, 2026
Jul 15, 2026
Jul 15, 2026
Jul 15, 2026
Jul 15, 2026
Jul 15, 2026
Jul 15, 2026
Jul 15, 2026
Jul 8, 2026
Apr 1, 2026
Apr 1, 2026
Feb 11, 2026
Dec 16, 2025
Oct 20, 2025
Oct 13, 2025
Oct 13, 2025
Oct 13, 2025
Oct 13, 2025
Oct 13, 2025
Oct 13, 2025
Oct 13, 2025
Oct 13, 2025
Oct 13, 2025
Oct 13, 2025
Oct 13, 2025
Oct 13, 2025
Oct 13, 2025
Oct 13, 2025
Oct 13, 2025
Oct 13, 2025
Oct 13, 2025
Oct 13, 2025
Oct 13, 2025
Oct 13, 2025
Oct 13, 2025
Oct 13, 2025
Oct 13, 2025
Jun 13, 2025
Jun 13, 2025
Jun 13, 2025
Jun 10, 2025
May 28, 2025
May 28, 2025
May 28, 2025
May 28, 2025
May 28, 2025
May 28, 2025
May 28, 2025
May 28, 2025
May 28, 2025
May 28, 2025
May 28, 2025
May 28, 2025
May 28, 2025
May 26, 2025
May 26, 2025
May 26, 2025
May 26, 2025
May 26, 2025
May 26, 2025
May 26, 2025
May 26, 2025
May 26, 2025
May 26, 2025
May 26, 2025
May 26, 2025
May 26, 2025
May 26, 2025
May 26, 2025
May 26, 2025
May 26, 2025
May 26, 2025
May 26, 2025
May 26, 2025
May 26, 2025
May 26, 2025
May 26, 2025
May 26, 2025
May 26, 2025
May 26, 2025
Sep 10, 2024
Aug 1, 2024
Jul 18, 2024
Jul 18, 2024
Jul 18, 2024
Jul 18, 2024
Jul 18, 2024
Jun 27, 2024
Jun 27, 2024
Jun 27, 2024
Jun 27, 2024
Jun 27, 2024
Jun 27, 2024
Apr 22, 2024
Apr 22, 2024
Apr 22, 2024
Apr 22, 2024
Apr 22, 2024
Apr 22, 2024
Apr 22, 2024
Jan 4, 2024
Jan 4, 2024
Dec 21, 2023
Apr 5, 2023
Feb 10, 2023
Feb 3, 2023
Jan 30, 2023
Jan 30, 2023
Jan 3, 2023
Jan 3, 2023
Nov 11, 2022
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Jul 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Apr 14, 2022
Apr 2, 2022
Mar 30, 2022
Mar 24, 2022
Mar 24, 2022
Mar 24, 2022
Mar 24, 2022
Mar 24, 2022
Mar 24, 2022
Feb 24, 2022
Feb 16, 2022
Feb 16, 2022
Feb 16, 2022
Feb 16, 2022
Feb 16, 2022
Jan 24, 2022
Jan 6, 2022
Jan 6, 2022
Jul 14, 2021
Jun 29, 2021
Jun 29, 2021
Jun 29, 2021
Jun 29, 2021
Jun 29, 2021
Jun 29, 2021
Jun 29, 2021
Jun 29, 2021
Jun 29, 2021