(19)

(11)

EP 4 388 277 A1

(12)

(43) Date of publication: 26.06.2024 Bulletin 2024/26 (21) Application number: 22858920.6 (22) Date of filing: 19.07.2022

(51) International Patent Classification (IPC):  G01B 7/34(2006.01) G01N 3/58(2006.01) G01N 3/06(2006.01) (52) Cooperative Patent Classification (CPC): G01N 3/58; G01N 2203/0676; G01L 1/2231; G01L 5/106 (86) International application number: PCT/US2022/037576 (87) International publication number: WO 2023/022829 (23.02.2023 Gazette 2023/08)

(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: 16.08.2021 US 202117403671 (71) Applicant: Razor Edge Systems, Inc. Ely, MN 55731 (US)	(72) Inventors: GRAVES, Mary, T. Maristique, MI 49854 (US) GRAVES, Daniel, D. Maristique, MI 49854 (US) JURANITCH, Joseph, C. Babbitt, MN 55706 (US) TAYLOR, Scott, D. San Martin, CA 95046 (US) MATTILA, Robert, J. Ely, MN 55731 (US) (74) Representative: TLIP Limited  Murgitroyd House 165-169 Scotland Street Glasgow G5 8PL Glasgow G5 8PL (GB)