(19)

(11)

EP 4 267 679 A1

(12)

(43) Date of publication: 01.11.2023 Bulletin 2023/44 (21) Application number: 22785150.8 (22) Date of filing: 21.03.2022

(51) International Patent Classification (IPC):  C09B 23/01(2006.01) C09B 57/00(2006.01) C09B 23/04(2006.01) (52) Cooperative Patent Classification (CPC): C09B 57/00; G01N 33/582 (86) International application number: PCT/US2022/021137 (87) International publication number: WO 2022/216449 (13.10.2022 Gazette 2022/41)

(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 MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 07.04.2021 US 202163171704 P 24.09.2021 US 202163248041 P (71) Applicant: Becton, Dickinson and Company Franklin Lakes, New Jersey 07417 (US)	(72) Inventors: BARTHOLOMEW, Glenn Escondido, California 92029 (US) WALL, Brian Poway, California 92064 (US) HOLLINGER, Jon Poway, California 92064 (US) LIANG, Yongchao Irvine, CA 92612 (US) (74) Representative: Mewburn Ellis LLP  Aurora Building Counterslip Bristol BS1 6BX Bristol BS1 6BX (GB)