(19)

(11)

EP 4 824 601 A1

(12)

(43) Date of publication: 21.10.2026 Bulletin 2026/43 (21) Application number: 24828691.6 (22) Date of filing: 11.12.2024

(51) International Patent Classification (IPC):  G02B 21/24(2006.01) G02B 21/36(2006.01) G02B 21/08(2006.01) G01N 21/64(2006.01) G01N 33/543(2006.01) (52) Cooperative Patent Classification (CPC): G02B 21/244; G02B 21/367; G01N 21/6458; G02B 21/088 (86) International application number: PCT/US2024/059535 (87) International publication number: WO 2025/128682 (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 US 202363610573 P (71) Applicant: IDEXX Laboratories, Inc Westbrook, Maine 04092 (US)	(72) Inventor: ERICSON, Carleton Westbrook, Maine 04092 (US) (74) Representative: Grey, Ian Michael  Venner Shipley LLP TIDE Bankside 8 Emerson Street London SE1 9DU London SE1 9DU (GB)