(19)

(11)

EP 4 363 646 A1

(12)

(43) Date of publication: 08.05.2024 Bulletin 2024/19 (21) Application number: 22735586.4 (22) Date of filing: 01.07.2022

(51) International Patent Classification (IPC):  D06B 1/02(2006.01) D06B 5/08(2006.01) D06B 15/04(2006.01) D06B 3/18(2006.01) (52) Cooperative Patent Classification (CPC): D06B 1/02; D06B 15/04; D06B 15/09; D06B 23/20; D06B 5/08; D06B 15/06; D06B 23/023; D06B 23/026; D06C 3/00; D06B 19/0005; D06B 3/18 (86) International application number: PCT/GB2022/051704 (87) International publication number: WO 2023/275562 (05.01.2023 Gazette 2023/01)

(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: 01.07.2021 GB 202109535 (71) Applicant: Alchemie Technology Limited Duxford Cambridge CB22 4PA (GB)	(72) Inventors: KEW, Simon Cambridge CB22 4PA (GB) BLYTHE, Thomas Cambridge CB22 4PA (GB) CHAMBERS, Scott Cambridge CB22 4PA (GB) FORDHAM, Keith Cambridge CB22 4PA (GB) (74) Representative: Stratagem IPM Limited  Meridian Court Comberton Road Toft, Cambridge CB23 2RY Toft, Cambridge CB23 2RY (GB)