(19)

(11)

EP 4 739 990 A1

(12)

(43) Date of publication: 13.05.2026 Bulletin 2026/20 (21) Application number: 24739427.3 (22) Date of filing: 27.06.2024

(51) International Patent Classification (IPC):  G01M 5/00(2006.01) G01N 3/08(2006.01) G01N 3/04(2006.01) (52) Cooperative Patent Classification (CPC): G01M 5/0058; G01N 3/04; G01N 3/20; G01N 3/34; G01N 2203/0005; G01N 2203/0023; G01N 2203/0037; G01N 2203/0073; G01N 2203/028 (86) International application number: PCT/EP2024/068189 (87) International publication number: WO 2025/011977 (16.01.2025 Gazette 2025/03)

(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: 07.07.2023 EP 23184157 (71) Applicant: Osbit Limited Riding Mill, Northumberland NE44 6AW (GB)	(72) Inventors: KIMPTON, Angus Owain Northumberland NE44 6AW (GB) MACGREGOR, David James Northumberland NE44 6AW (GB) JOLLIFFE, Martin Stuart Northumberland NE44 6AW (GB) (74) Representative: Murgitroyd & Company  165-169 Scotland Street Glasgow G5 8PL Glasgow G5 8PL (GB)