Patent No. EP3937311 (titled "Conduit Connection Contact Element") was filed by Wago Verwaltungsgesellschaft on Sep 6, 2016. The application was issued on Nov 22, 2023.

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 |
|---|---|---|
| BJB | May 15, 2024 | OSTRIGA SONNET WIRTHS & VORWERK |
| BJB | May 15, 2024 | OSTRIGA WIRTHS UND VORWERK |
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
Jan 28, 2026
Dec 2, 2025
Nov 27, 2025
Nov 27, 2025
Nov 27, 2025
Nov 24, 2025
Nov 21, 2025
Nov 19, 2025
Nov 19, 2025
Nov 19, 2025
Nov 18, 2025
Nov 18, 2025
Nov 18, 2025
Nov 13, 2025
Nov 10, 2025
Nov 10, 2025
Nov 10, 2025
Nov 10, 2025
Nov 10, 2025
Nov 10, 2025
Nov 10, 2025
Nov 10, 2025
Nov 10, 2025
Nov 10, 2025
Nov 10, 2025
Nov 10, 2025
Nov 10, 2025
Nov 10, 2025
Nov 10, 2025
Nov 10, 2025
Nov 10, 2025
Nov 10, 2025
Nov 10, 2025
Nov 10, 2025
Nov 10, 2025
Nov 10, 2025
Nov 10, 2025
Nov 10, 2025
Nov 10, 2025
Nov 10, 2025
Nov 10, 2025
Nov 10, 2025
Nov 10, 2025
Nov 10, 2025
Nov 10, 2025
Nov 10, 2025
Nov 10, 2025
Nov 10, 2025
Nov 10, 2025
Aug 8, 2025
Aug 5, 2025
Aug 5, 2025
Aug 5, 2025
Aug 5, 2025
Aug 5, 2025
Aug 5, 2025
Aug 5, 2025
Aug 5, 2025
Aug 5, 2025
Aug 5, 2025
Aug 5, 2025
Aug 5, 2025
Aug 5, 2025
Aug 5, 2025
Aug 5, 2025
Aug 5, 2025
Aug 5, 2025
Aug 5, 2025
Aug 5, 2025
Aug 5, 2025
Jul 1, 2025
Jul 1, 2025
Jul 1, 2025
Jul 1, 2025
Jul 1, 2025
Jun 23, 2025
Jun 23, 2025
Jun 23, 2025
Jun 23, 2025
Sep 20, 2024
Sep 17, 2024
Sep 17, 2024
Sep 17, 2024
Sep 17, 2024
Sep 3, 2024
Sep 3, 2024
May 21, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
Dec 5, 2023
Oct 26, 2023
Oct 13, 2023
Oct 13, 2023
Oct 13, 2023
Oct 13, 2023
Jun 14, 2023
Jun 14, 2023
Jun 14, 2023
Jun 14, 2023
Jun 14, 2023
Jun 14, 2023
May 19, 2023
Mar 22, 2023
Mar 16, 2023
Mar 16, 2023
Mar 16, 2023
Mar 2, 2023
Mar 2, 2023
Mar 2, 2023
Jan 19, 2022
Jan 19, 2022
Jan 19, 2022
Jan 19, 2022
Jan 19, 2022
Jan 19, 2022
Jan 19, 2022
Jan 17, 2022
Dec 15, 2021
Nov 29, 2021
Nov 24, 2021
Nov 24, 2021
Nov 24, 2021
Nov 24, 2021
Sep 27, 2021
Sep 3, 2021
Sep 3, 2021
Sep 3, 2021
Sep 3, 2021
Sep 3, 2021
Sep 3, 2021
Sep 3, 2021
Sep 3, 2021
Apr 10, 2017