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(11)

EP 4 816 801 A1

(12)

(43) Date of publication: 07.10.2026 Bulletin 2026/41 (21) Application number: 24841582.0 (22) Date of filing: 17.12.2024

(51) International Patent Classification (IPC):  G01N 21/95(2006.01) G01N 21/952(2006.01) G01N 21/958(2006.01) (52) Cooperative Patent Classification (CPC): G01N 21/95; G01N 21/958; G01N 21/952 (86) International application number: PCT/US2024/060543 (87) International publication number: WO 2025/144640 (03.07.2025 Gazette 2025/27)

(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: 31.12.2023 US 202363616757 P (71) Applicant: Colgate-Palmolive Company New York, NY 10022 (US)	(72) Inventors: ZHANG, Xiaonan Hillsborough, New Jersey 08844 (US) WANG, Jun Fort Washington, Pennsylvania 19034 (US) (74) Representative: Schicker, Silvia  Wuesthoff & Wuesthoff Patentanwälte und Rechtsanwalt PartG mbB Schweigerstraße 2 81541 München 81541 München (DE)