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The patent EP3721176 was granted to Diehl Metering on Oct 11, 2023. The application was filed on Nov 28, 2018 under application number EP18815126A. 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 |
|---|---|---|---|
| KAMSTRUP | Jul 1, 2024 | PATENTANWALTE HEMMER LINDFELD FRESE PARTNERSCHAFT MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP3112820 |
| DESCRIPTION | EP3112823 |
| EXAMINATION | GB2447691 |
| INTERNATIONAL-SEARCH-REPORT | EP3112823 |
| INTERNATIONAL-SEARCH-REPORT | US2005011278 |
| INTERNATIONAL-SEARCH-REPORT | US2010192703 |
| OPPOSITION | EP2963405 |
| OPPOSITION | US2014174186 |
| OPPOSITION | WO2004106868 |
| OPPOSITION | WO2015031416 |
| OPPOSITION | WO2017005269 |
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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Dec 17, 2025
Dec 17, 2025
Dec 11, 2025
(Electronic) Receipt
Appeal
Dec 11, 2025
Notice of appeal
Appeal
Oct 21, 2025
Oct 21, 2025
Oct 21, 2025
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Means of redress
OPPO
Oct 21, 2025
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Oct 1, 2025
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Jul 29, 2025
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Authorisation
OPPO
Jul 29, 2025
Jul 16, 2025
Jul 10, 2025
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Oct 24, 2023
Sep 14, 2023
Decision to grant a European patent
Search/Exam
Aug 29, 2023
(Electronic) Receipt
Search/Exam
Aug 29, 2023
English translation of the claims
Search/Exam
Aug 29, 2023
Filing of the translations of the claims
Search/Exam
Aug 29, 2023
French translation of claims
Search/Exam
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
Jun 1, 2023
Intention to grant (signatures)
Search/Exam
Jun 1, 2023
Text intended for grant (clean copy)
Search/Exam
Jun 1, 2023
Jan 12, 2023
(Electronic) Receipt
Search/Exam
Jan 12, 2023
Amended claims with annotations
Search/Exam
Jan 12, 2023
Amended description with annotations
Search/Exam
Jan 12, 2023
Claims
Search/Exam
Jan 12, 2023
Description
Search/Exam
Jan 12, 2023
Letter accompanying subsequently filed items
Search/Exam
Jan 12, 2023
Nov 14, 2022
Annex to the communication
Search/Exam
Nov 14, 2022
Communication from the Examining Division
Search/Exam
Nov 4, 2022
Examination started
Search/Exam
Mar 17, 2021
(Electronic) Receipt
Search/Exam
Mar 17, 2021
Mar 17, 2021
Priority search results
Search/Exam
Mar 17, 2021
Jan 29, 2021
Refund of fees
Search/Exam
Jan 19, 2021
(Electronic) Receipt
Search/Exam
Jan 19, 2021
Jan 19, 2021
Amended claims with annotations
Search/Exam
Jan 19, 2021
Jan 19, 2021
Amended description with annotations
Search/Exam
Jan 19, 2021
Amendments received before examination
Search/Exam
Jan 19, 2021
Letter accompanying subsequently filed items
Search/Exam
Sep 16, 2020
Jul 29, 2020
Jul 10, 2020
Communication to designated inventor
Search/Exam
Jun 22, 2020
May 28, 2020
(Electronic) Receipt
Search/Exam
May 28, 2020
May 28, 2020
Amended claims with annotations
Search/Exam
May 28, 2020
May 28, 2020
Amended description with annotations
Search/Exam
May 28, 2020
Request for entry into the European phase
Search/Exam
Apr 17, 2020
Information on entry into European phase
Search/Exam
Jul 2, 2019
Jun 13, 2019
Copy of the international search report
Search/Exam
Jun 13, 2019
Copy of the international search report
Search/Exam
Jun 13, 2019
Published international application - A1
Search/Exam
Apr 8, 2019
Jan 2, 2019
Dec 21, 2018
Dec 18, 2018
Dec 17, 2018
(Electronic) Receipt
PCTISA
Dec 17, 2018
Dec 17, 2018
Dec 17, 2018
Dec 17, 2018
Dec 17, 2018
Dec 17, 2018
Nov 30, 2018
Nov 28, 2018
(Electronic) Receipt
PCTRO
Nov 28, 2018
Abstract
PCTRO
Nov 28, 2018
Claims
PCTRO
Nov 28, 2018
Description
PCTRO
Nov 28, 2018
Nov 28, 2018
Drawings
PCTRO
Nov 28, 2018