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EP 4 824 997 A1

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(43) Date of publication: 21.10.2026 Bulletin 2026/43 (21) Application number: 24724203.5 (22) Date of filing: 03.05.2024

(51) International Patent Classification (IPC):  H04L 9/40(2022.01) H04Q 9/00(2006.01) H04L 67/56(2022.01) H04L 67/12(2022.01) G01D 4/00(2006.01) (52) Cooperative Patent Classification (CPC): H04L 67/12; H04Q 9/00; H04Q 2209/60; G01D 4/002; H04L 63/0428 (86) International application number: PCT/EP2024/062295 (87) International publication number: WO 2025/124749 (19.06.2025 Gazette 2025/25)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: GE KH MA MD TN (30) Priority: 15.12.2023 DE 102023135321 (71) Applicant: Marchl Metering GmbH 93426 Roding (DE)	(72) Inventor: MARCHL, Julian F. 93426 Roding (DE) (74) Representative: Kehl, Ascherl, Liebhoff & Ettmayr Patentanwälte Partnerschaft mbB  Emil-Riedel-Straße 18 80538 München 80538 München (DE)