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EP 4 294 977 A1

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(43) Date of publication: 27.12.2023 Bulletin 2023/52 (21) Application number: 22708893.7 (22) Date of filing: 22.02.2022

(51) International Patent Classification (IPC):  D06P 1/66(2006.01) D06P 1/00(2006.01) D06P 3/26(2006.01) D06P 3/54(2006.01) D06P 3/70(2006.01) D06P 5/13(2006.01) D06P 3/24(2006.01) D06P 3/52(2006.01) D06P 3/60(2006.01) D06P 3/72(2006.01) (52) Cooperative Patent Classification (CPC): D06P 5/137; D06P 5/13; D06P 1/66; D06P 1/0008; D06P 3/24; D06P 3/26; D06P 3/52; D06P 3/54; D06P 3/60; D06P 3/70; D06P 3/72 (86) International application number: PCT/EP2022/054446 (87) International publication number: WO 2022/175559 (25.08.2022 Gazette 2022/34)

(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: 22.02.2021 GB 202102502 (71) Applicant: Imperial College Innovations Limited London SW7 2AZ (GB)	(72) Inventors: ABOUELELA, Aida Rafat London Greater London SW7 2AZ (GB) HALLETT, Jason Patrick London Greater London SW7 2AZ (GB) FIRTH, Anton Edward Josef London Greater London SW7 2AZ (GB) LEVERS, Oliver Douglas London Greater London SW7 2AZ (GB) (74) Representative: Harris, Jennifer Lucy et al Kilburn & Strode LLP Lacon London 84 Theobalds Road London WC1X 8NL London WC1X 8NL (GB)