The weekly litigation news digest is live. Subscribe now
The patent EP3937311 was granted to Wago Verwaltungsgesellschaft on Nov 22, 2023. The application was filed on Sep 6, 2016 under application number EP21194807A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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 | Opposition Status |
|---|---|---|---|
| BJB | May 15, 2024 | OSTRIGA SONNET WIRTHS & VORWERK | ADMISSIBLE |
| BJB | May 15, 2024 | OSTRIGA WIRTHS UND VORWERK | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE102013111649 |
| DESCRIPTION | DE19735835 |
| DESCRIPTION | US3363224 |
| DESCRIPTION | US4299436 |
| OPPOSITION | CN103022756 |
| OPPOSITION | DE102014105521 |
| OPPOSITION | KR20140106444 |
| OPPOSITION | KR20150014140 |
| SEARCH | DE102013111649 |
| SEARCH | DE19735835 |
| SEARCH | EP2843765 |
| SEARCH | EP3059807 |
| SEARCH | TWM507609U |
| SEARCH | US2014235113 |
| SEARCH | US2015255923 |
| SEARCH | US3363224 |
| SEARCH | US4299436 |
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 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
Description
OPPO
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
Decision to grant a European patent
Search/Exam
Oct 13, 2023
(Electronic) Receipt
Search/Exam
Oct 13, 2023
English translation of the claims
Search/Exam
Oct 13, 2023
Filing of the translations of the claims
Search/Exam
Oct 13, 2023
French translation of claims
Search/Exam
Jun 14, 2023
Jun 14, 2023
Jun 14, 2023
Jun 14, 2023
Intention to grant (signatures)
Search/Exam
Jun 14, 2023
Text intended for grant (clean copy)
Search/Exam
Jun 14, 2023
May 19, 2023
Examination started
Search/Exam
Mar 22, 2023
Mar 16, 2023
Annexes in respect of a client data request
Search/Exam
Mar 16, 2023
Letter accompanying subsequently filed items
Search/Exam
Mar 16, 2023
Mar 2, 2023
Annexes in respect of a client data request
Search/Exam
Mar 2, 2023
Letter accompanying subsequently filed items
Search/Exam
Mar 2, 2023
Jan 19, 2022
(Electronic) Receipt
Search/Exam
Jan 19, 2022
Jan 19, 2022
Amended claims with annotations
Search/Exam
Jan 19, 2022
Jan 19, 2022
Amended description with annotations
Search/Exam
Jan 19, 2022
Amendments received before examination
Search/Exam
Jan 19, 2022
Letter accompanying subsequently filed items
Search/Exam
Jan 17, 2022
Dec 15, 2021
Notification of forthcoming publication
Search/Exam
Nov 29, 2021
Refund of fees
Search/Exam
Nov 24, 2021
Nov 24, 2021
European search opinion
Search/Exam
Nov 24, 2021
European search report
Search/Exam
Nov 24, 2021
Information on Search Strategy
Search/Exam
Sep 27, 2021
Payment submission rejected
Search/Exam
Sep 3, 2021
Abstract
Search/Exam
Sep 3, 2021
Sep 3, 2021
Claims
Search/Exam
Sep 3, 2021
Description
Search/Exam
Sep 3, 2021
Designation of inventor
Search/Exam
Sep 3, 2021
Drawings
Search/Exam
Sep 3, 2021
Priority search results
Search/Exam
Sep 3, 2021
Request for grant of a European patent
Search/Exam
Apr 10, 2017