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(11)

EP 4 816 799 A1

(12)

(43) Date of publication: 07.10.2026 Bulletin 2026/41 (21) Application number: 23817375.1 (22) Date of filing: 30.11.2023

(51) International Patent Classification (IPC):  G01N 21/81(2006.01) G01N 21/78(2006.01) G01N 33/18(2006.01) (52) Cooperative Patent Classification (CPC): G01N 21/81; G01N 2021/7759; G01N 2021/7793; G01N 2201/1296; G01N 33/18 (86) International application number: PCT/EP2023/083731 (87) International publication number: WO 2025/113802 (05.06.2025 Gazette 2025/23)

(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: KH MA MD TN (71) Applicant: HELLA GmbH & Co. KGaA 59552 Lippstadt (DE)	(72) Inventor: RAFEL, Arnaud 31300 Toulouse (FR) (74) Representative: Wichmann, Jörg  Hella GmbH & Co. KGaA Rixbecker Straße 75 59552 Lippstadt 59552 Lippstadt (DE)