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(11)

EP 4 555 302 A1

(12)

(43) Date of publication: 21.05.2025 Bulletin 2025/21 (21) Application number: 24737887.0 (22) Date of filing: 26.06.2024

(51) International Patent Classification (IPC):  G01N 3/08(2006.01) G01N 3/30(2006.01) G01M 7/08(2006.01) G01N 33/00(2006.01) (52) Cooperative Patent Classification (CPC): G01N 3/30; G01N 3/08; G01N 2203/022; G01N 2203/0252; G01M 7/08; G01N 33/0078 (86) International application number: PCT/EP2024/068028 (87) International publication number: WO 2025/003278 (02.01.2025 Gazette 2025/01)

(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: 27.06.2023 DE 102023116959 (71) Applicant: 4a engineering GmbH 8772 Traboch (AT)	(72) Inventors: HAFELLNER, Reinhard 8724 Spielberg (AT) SCHWAB, Martin 8010 Graz (AT) SCHMID, Harald 8700 Leoben (AT) HUDALES, Simon 3320 Velenje (SI) (74) Representative: Dilg, Haeusler, Schindelmann Patentanwaltsgesellschaft mbH  Leonrodstraße 58 80636 München 80636 München (DE)