Method For Monitoring The Operation Of A Fluid Meter And Fluid Meter

Patent No. EP3721176 (titled "Method For Monitoring The Operation Of A Fluid Meter And Fluid Meter") was filed by Diehl Metering on Nov 28, 2018. The application was issued on Oct 11, 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
KAMSTRUP	Jul 1, 2024	PATENTANWALTE HEMMER LINDFELD FRESE PARTNERSCHAFT MBB

Dossier Documents

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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Jan 20, 2026
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Jan 15, 2026
(Electronic) Receipt
Jan 15, 2026
Amended claims with annotations
Jan 15, 2026
Amended claims with annotations
Jan 15, 2026
Amended claims with annotations
Jan 15, 2026
Auxiliary request during appeals procedure - 04
Jan 15, 2026
Auxiliary request during appeals procedure - 05
Jan 15, 2026
Auxiliary request during appeals procedure - 06
Jan 15, 2026
Letter accompanying subsequently filed items
Jan 15, 2026
Statement of grounds of appeal
Dec 17, 2025
F3204 Communication of the file number to the parties
Dec 17, 2025
F3204 Communication of the file number to the parties
Dec 11, 2025
(Electronic) Receipt
Dec 11, 2025
Notice of appeal
Oct 21, 2025
Annex to the communication - opposition
Oct 21, 2025
Brief communication - Opposition proceedings
Oct 21, 2025
Brief communication - Opposition proceedings
Oct 21, 2025
Decision of the Opposition Division and instruction
Oct 21, 2025
Decision revoking the European patent
Oct 21, 2025
Decision revoking the European patent
Oct 21, 2025
Grounds for the decision (Annex) - opposition
Oct 21, 2025
Means of redress
Oct 21, 2025
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Oct 21, 2025
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Oct 21, 2025
Provision of a copy of the minutes - opposition procedure
Oct 21, 2025
Provision of a copy of the minutes - opposition procedure
Oct 21, 2025
Scanned annex to a communication - opposition procedure
Oct 21, 2025
Scanned annex to a communication - opposition procedure
Oct 1, 2025
Information about the result of oral proceedings
Sep 30, 2025
Brief communication - Opposition proceedings
Sep 23, 2025
(Electronic) Receipt
Sep 23, 2025
Auxiliary request during Opposition procedure
Sep 23, 2025
Auxiliary request during Opposition procedure - 04
Sep 23, 2025
Letter accompanying subsequently filed items
Sep 23, 2025
Written submission in preparation to/during oral proceedings
Aug 11, 2025
Brief communication - Opposition proceedings
Jul 29, 2025
(Electronic) Receipt
Jul 29, 2025
Authorisation
Jul 29, 2025
Letter accompanying subsequently filed items
Jul 16, 2025
Brief communication - Opposition proceedings
Jul 10, 2025
(Electronic) Receipt
Jul 10, 2025
Auxiliary request during Opposition procedure
Jul 10, 2025
Auxiliary request during Opposition procedure
Jul 10, 2025
Auxiliary request during Opposition procedure
Jul 10, 2025
Auxiliary request during Opposition procedure
Jul 10, 2025
Auxiliary request during Opposition procedure - 01
Jul 10, 2025
Auxiliary request during Opposition procedure - 02
Jul 10, 2025
Auxiliary request during Opposition procedure - 03
Jul 10, 2025
Auxiliary request during Opposition procedure - 04
Jul 10, 2025
Brief communication - Opposition proceedings
Jul 10, 2025
Letter accompanying subsequently filed items
Jul 10, 2025
Request for interpreters during oral proceedings
Jul 10, 2025
Written submission in preparation to/during oral proceedings
Jul 7, 2025
(Electronic) Receipt
Jul 7, 2025
Letter accompanying subsequently filed items
Jul 7, 2025
Written submission in preparation to/during oral proceedings
Feb 17, 2025
Annex to the communication - opposition
Feb 17, 2025
Brief communication - Opposition proceedings
Feb 17, 2025
Information concerning oral proceedings
Feb 17, 2025
Scanned annex to a communication - opposition procedure
Feb 17, 2025
Summons to attend oral proceedings
Feb 17, 2025
Summons to attend oral proceedings
Feb 12, 2025
(Electronic) Receipt
Feb 12, 2025
Letter accompanying subsequently filed items
Feb 12, 2025
Letter regarding the opposition procedure (no time limit)
Nov 13, 2024
Brief communication - Opposition proceedings
Nov 11, 2024
(Electronic) Receipt
Nov 11, 2024
Letter accompanying subsequently filed items
Nov 11, 2024
Reply of the patent proprietor to the notice(s) of opposition
Jul 25, 2024
Communication of a notice of opposition and request to file observations
Jul 25, 2024
Notice of further oppositions to opponent(s)
Jul 5, 2024
Communication of a notice of opposition - first information to patent proprietor
Jul 1, 2024
(Electronic) Receipt
Jul 1, 2024
Citation in opposition procedure - 001
Jul 1, 2024
Citation in opposition procedure - 002
Jul 1, 2024
Citation in opposition procedure - 003
Jul 1, 2024
Citation in opposition procedure - 004
Jul 1, 2024
Citation in opposition procedure - 005
Jul 1, 2024
Notice of opposition
Jul 1, 2024
Notice of opposition
Oct 24, 2023
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Sep 14, 2023
Decision to grant a European patent
Aug 29, 2023
(Electronic) Receipt
Aug 29, 2023
English translation of the claims
Aug 29, 2023
Filing of the translations of the claims
Aug 29, 2023
French translation of claims
Jun 1, 2023
Annex to the communication about intention to grant a European patent
Jun 1, 2023
Bibliographic data of the European patent application
Jun 1, 2023
Communication about intention to grant a European patent
Jun 1, 2023
Intention to grant (signatures)
Jun 1, 2023
Text intended for grant (clean copy)
Jun 1, 2023
Text intended for grant (version for approval)
Jan 12, 2023
(Electronic) Receipt
Jan 12, 2023
Amended claims with annotations
Jan 12, 2023
Amended description with annotations
Jan 12, 2023
Claims
Jan 12, 2023
Description
Jan 12, 2023
Letter accompanying subsequently filed items
Jan 12, 2023
Reply to communication from the Examining Division
Nov 14, 2022
Annex to the communication
Nov 14, 2022
Communication from the Examining Division
Nov 4, 2022
Examination started
Mar 17, 2021
(Electronic) Receipt
Mar 17, 2021
Invitation to file a copy of search results(priority)
Mar 17, 2021
Priority search results
Mar 17, 2021
Reply to invitation to file a copy of priority search results
Jan 29, 2021
Refund of fees
Jan 19, 2021
(Electronic) Receipt
Jan 19, 2021
Amended claims filed after receipt of (European) search report
Jan 19, 2021
Amended claims with annotations
Jan 19, 2021
Amended description filed after receipt of (European) search report
Jan 19, 2021
Amended description with annotations
Jan 19, 2021
Amendments received before examination
Jan 19, 2021
Letter accompanying subsequently filed items
Sep 16, 2020
Notification on forthcoming publication of bibliographic data
Jul 29, 2020
Communication regarding comments on written opinion/amendment of application/payment of claims fee
Jul 10, 2020
Communication to designated inventor
Jun 22, 2020
Copy of the international preliminary report on patentability
May 28, 2020
(Electronic) Receipt
May 28, 2020
Amended claims filed after receipt of (European) search report
May 28, 2020
Amended claims with annotations
May 28, 2020
Amended description filed after receipt of (European) search report
May 28, 2020
Amended description with annotations
May 28, 2020
Request for entry into the European phase
Apr 17, 2020
Information on entry into European phase
Jul 2, 2019
Priority document (electronically transmitted)
Jun 13, 2019
Copy of the international search report
Jun 13, 2019
Copy of the international search report
Jun 13, 2019
Published international application - A1
Apr 8, 2019
Notification of decision concerning request for rectification
Jan 2, 2019
Notification of receipt of Search copy
Dec 21, 2018
Notification of the international application number and of the international filing date
Dec 18, 2018
Request form for international application (copy for ISA/EP)
Dec 17, 2018
(Electronic) Receipt
Dec 17, 2018
Incoming letter related to PCT RO
Dec 17, 2018
Rectified claims sheet(s) produced by ISA/EP under Rule 91 PCT
Dec 17, 2018
Rectified claims sheet(s) produced by ISA/EP under Rule 91 PCT
Dec 17, 2018
Rectified description sheet(s) produced by ISA/EP under Rule 91 PCT
Dec 17, 2018
Rectified description sheet(s) produced by ISA/EP under Rule 91 PCT
Dec 17, 2018
Request for correction of obvious error
Nov 30, 2018
Incoming letter related to PCT RO
Nov 28, 2018
(Electronic) Receipt
Nov 28, 2018
Abstract
Nov 28, 2018
Claims
Nov 28, 2018
Description
Nov 28, 2018
Document concerning fees and payments
Nov 28, 2018
Drawings
Nov 28, 2018
Electronic request for grant of an International application

EP3721176

DIEHL METERING

Application Number: EP18815126A
Filing Date: Nov 28, 2018
Status: Granted And Under Opposition; Sep 8, 2023
Publication Date: Oct 11, 2023
External Links: Slate, Register , Google Patents

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Method For Monitoring The Operation Of A Fluid Meter And Fluid Meter

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Dossier Documents

EP3721176