Patent No. EP3500507 (titled "Container For A Bulk Material") was filed by Penprase on Aug 17, 2017. The application was issued on Nov 5, 2025.

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 |
|---|---|---|
| CONQUIP ENGINEERING GROUP | Aug 5, 2026 | PAGE WHITE FARRER |
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
Aug 10, 2026
Aug 10, 2026
Aug 7, 2026
Aug 5, 2026
Aug 5, 2026
Aug 5, 2026
Aug 5, 2026
Aug 5, 2026
Aug 5, 2026
Aug 5, 2026
Aug 5, 2026
Aug 5, 2026
Aug 5, 2026
Aug 5, 2026
Aug 5, 2026
Aug 5, 2026
Aug 5, 2026
Aug 5, 2026
Aug 5, 2026
Aug 5, 2026
Aug 5, 2026
Aug 5, 2026
Aug 5, 2026
Aug 5, 2026
Aug 5, 2026
Nov 18, 2025
Oct 9, 2025
Sep 29, 2025
Sep 29, 2025
Sep 29, 2025
Sep 29, 2025
Jun 2, 2025
Jun 2, 2025
Jun 2, 2025
Jun 2, 2025
Jun 2, 2025
Jun 2, 2025
Mar 17, 2025
Mar 17, 2025
Mar 12, 2025
Mar 12, 2025
Mar 12, 2025
Mar 12, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Oct 29, 2024
Oct 29, 2024
Jul 29, 2024
Jul 29, 2024
Jul 24, 2024
Jul 24, 2024
Jul 24, 2024
Jul 24, 2024
Jul 24, 2024
Jul 24, 2024
Jun 21, 2024
Jun 21, 2024
Jun 21, 2024
Jun 21, 2024
Jun 21, 2024
Jun 21, 2024
Jun 21, 2024
Feb 22, 2024
Feb 22, 2024
Feb 3, 2023
Feb 3, 2023
Feb 3, 2023
Feb 3, 2023
Feb 3, 2023
Feb 3, 2023
Feb 3, 2023
Oct 28, 2022
Oct 28, 2022
Jan 27, 2022
Jan 18, 2022
Jan 18, 2022
Jul 19, 2021
Jul 19, 2021
Jul 19, 2021
Mar 11, 2021
Mar 11, 2021
Oct 19, 2020
Oct 19, 2020
Oct 19, 2020
Oct 19, 2020
Oct 19, 2020
Oct 19, 2020
Oct 19, 2020
Jul 17, 2020
Jul 13, 2020
Jul 13, 2020
Apr 9, 2020
Apr 9, 2020
Jan 20, 2020
Nov 22, 2019
May 29, 2019
Mar 26, 2019
Mar 18, 2019
Mar 13, 2019
Mar 8, 2019
Mar 5, 2019
Jan 29, 2019
Jan 29, 2019
Jan 29, 2019
Jan 4, 2019
Mar 12, 2018
Feb 22, 2018
Feb 22, 2018
Dec 5, 2017
Dec 5, 2017
Nov 22, 2017
Nov 21, 2017
Nov 21, 2017
Nov 21, 2017
Sep 8, 2017
Aug 28, 2017
Aug 28, 2017
Aug 28, 2017
Aug 28, 2017
Aug 28, 2017
Aug 28, 2017
Aug 28, 2017
Aug 28, 2017
Aug 28, 2017