Patent No. EP3919801 (titled "Monitoring Device") was filed by Leuze Electronic on Feb 3, 2021. The application was issued on Jul 31, 2024.

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.
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 14, 2026
Jul 14, 2026
Jul 8, 2026
Jul 8, 2026
Jul 8, 2026
Jun 29, 2026
Jun 29, 2026
Jun 29, 2026
Jun 29, 2026
Jun 29, 2026
Jun 29, 2026
Jun 29, 2026
Jun 29, 2026
Jun 29, 2026
Jun 29, 2026
Jun 29, 2026
Jun 29, 2026
Jun 29, 2026
Jun 11, 2026
Apr 30, 2026
Apr 22, 2026
Apr 22, 2026
Apr 22, 2026
Apr 22, 2026
Apr 17, 2026
Apr 17, 2026
Apr 17, 2026
Apr 15, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Apr 8, 2026
Nov 25, 2025
Nov 20, 2025
Nov 20, 2025
Nov 20, 2025
Nov 17, 2025
Nov 17, 2025
Nov 17, 2025
Nov 17, 2025
Nov 17, 2025
Aug 27, 2025
Aug 20, 2025
Aug 20, 2025
Aug 20, 2025
May 19, 2025
May 19, 2025
Mar 21, 2025
Mar 18, 2025
Mar 18, 2025
Mar 18, 2025
Mar 18, 2025
Mar 18, 2025
Mar 18, 2025
Mar 18, 2025
Mar 18, 2025
Mar 18, 2025
Mar 18, 2025
Mar 18, 2025
Mar 18, 2025
Mar 18, 2025
Mar 18, 2025
Mar 18, 2025
Mar 18, 2025
Mar 18, 2025
Aug 13, 2024
Jul 4, 2024
Jun 21, 2024
Jun 21, 2024
Jun 21, 2024
Jun 21, 2024
Jun 11, 2024
Jun 11, 2024
Jun 11, 2024
Jun 11, 2024
Jun 11, 2024
Jun 11, 2024
Apr 3, 2024
May 10, 2022
May 10, 2022
May 10, 2022
May 10, 2022
May 10, 2022
May 10, 2022
May 10, 2022
Dec 13, 2021
Nov 10, 2021
Aug 9, 2021
Aug 9, 2021
Aug 9, 2021
Jul 7, 2021
Jul 7, 2021
Jul 7, 2021
Jul 7, 2021
Jun 28, 2021
Mar 29, 2021
Feb 18, 2021
Feb 18, 2021
Feb 3, 2021
Feb 3, 2021
Feb 3, 2021
Feb 3, 2021
Feb 3, 2021
Feb 3, 2021
Feb 3, 2021
Feb 3, 2021