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The patent EP3471997 was granted to Conductix Wampfler on May 10, 2023. The application was filed on Feb 27, 2018 under application number EP18708387A. 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 |
|---|---|---|---|
| PAUL VAHLE | Feb 12, 2024 | LENZING GERBER STUTE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE2246681 |
| DESCRIPTION | JP2016041552 |
| INTERNATIONAL-SEARCH-REPORT | DE3440776 |
| INTERNATIONAL-SEARCH-REPORT | JPS5618225U |
| INTERNATIONAL-SEARCH-REPORT | JPS5757129U |
| INTERNATIONAL-SEARCH-REPORT | WO2016023705 |
| OPPOSITION | DE102004008571 |
| OPPOSITION | DE102015120345 |
| OPPOSITION | DE102016102912 |
| OPPOSITION | DE202014102490U |
| OPPOSITION | EP0262607 |
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
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Means of redress
OPPO
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Description
OPPO
Sep 25, 2025
Description
OPPO
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Description
OPPO
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Non-public annex
OPPO
Dec 19, 2024
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Decision to grant a European patent
Search/Exam
Mar 28, 2023
(Electronic) Receipt
Search/Exam
Mar 28, 2023
English translation of the claims
Search/Exam
Mar 28, 2023
Filing of the translations of the claims
Search/Exam
Mar 28, 2023
French translation of claims
Search/Exam
Mar 28, 2023
Letter accompanying subsequently filed items
Search/Exam
Mar 2, 2023
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Intention to grant (signatures)
Search/Exam
Mar 2, 2023
Text intended for grant (clean copy)
Search/Exam
Mar 2, 2023
Feb 2, 2021
(Electronic) Receipt
Search/Exam
Feb 2, 2021
Amended claims with annotations
Search/Exam
Feb 2, 2021
Amended description with annotations
Search/Exam
Feb 2, 2021
Claims
Search/Exam
Feb 2, 2021
Description
Search/Exam
Feb 2, 2021
Letter accompanying subsequently filed items
Search/Exam
Feb 2, 2021
Jan 19, 2021
Annex to the communication
Search/Exam
Jan 19, 2021
Communication from the Examining Division
Search/Exam
Aug 17, 2020
(Electronic) Receipt
Search/Exam
Aug 17, 2020
Amended claims with annotations
Search/Exam
Aug 17, 2020
Claims
Search/Exam
Aug 17, 2020
Letter accompanying subsequently filed items
Search/Exam
Aug 17, 2020
Jun 16, 2020
Jun 9, 2020
(Electronic) Receipt
Search/Exam
Jun 9, 2020
Letter accompanying subsequently filed items
Search/Exam
Jun 9, 2020
Feb 7, 2020
Annex to the communication
Search/Exam
Feb 7, 2020
Communication from the Examining Division
Search/Exam
Feb 3, 2020
Examination started
Search/Exam
Jan 3, 2020
Oct 9, 2019
Sep 26, 2019
(Electronic) Receipt
Search/Exam
Sep 26, 2019
Letter accompanying subsequently filed items
Search/Exam
Sep 26, 2019
Matter concerning the application
Search/Exam
Sep 26, 2019
Matter concerning the application
Search/Exam
Sep 24, 2019
Mar 27, 2019
Mar 19, 2019
Feb 8, 2019
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Jan 30, 2019
Communication to designated inventor
Search/Exam
Jan 30, 2019
Communication to designated inventor
Search/Exam
Jan 18, 2019
(Electronic) Receipt
Search/Exam
Jan 18, 2019
Jan 18, 2019
Amended claims with annotations
Search/Exam
Jan 18, 2019
Jan 18, 2019
Amended description with annotations
Search/Exam
Jan 18, 2019
Amendments received before examination
Search/Exam
Jan 18, 2019
Priority search results
Search/Exam
Jan 18, 2019
Request for entry into the European phase
Search/Exam
Jan 8, 2019
Dec 6, 2018
Copy of the international search report
Search/Exam
Dec 6, 2018
Copy of the international search report
Search/Exam
Dec 6, 2018
Published international application - A1
Search/Exam
Jun 4, 2018
ISR: cited documents
PCTISA
Jun 4, 2018
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(Electronic) Receipt
PCTRO
Feb 27, 2018
Abstract
PCTRO
Feb 27, 2018
Claims
PCTRO
Feb 27, 2018
Description
PCTRO
Feb 27, 2018
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Drawings
PCTRO
Feb 27, 2018