(19)

(11)

EP 4 334 409 A1

(12)

(43) Date of publication: 13.03.2024 Bulletin 2024/11 (21) Application number: 22727050.1 (22) Date of filing: 29.04.2022

(51) International Patent Classification (IPC):  C10B 47/24(2006.01) C10G 1/10(2006.01) C10B 57/02(2006.01) C10B 53/00(2006.01) C10B 57/18(2006.01) (52) Cooperative Patent Classification (CPC): C10B 47/24; C10B 53/00; C10G 1/10; C10B 57/18; C10B 57/02; C10G 1/002 (86) International application number: PCT/EP2022/061615 (87) International publication number: WO 2022/233747 (10.11.2022 Gazette 2022/45)

(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: 04.05.2021 GB 202106334 (71) Applicant: UCL Business Ltd London WC1E 6BT (GB)	(72) Inventor: MATERAZZI, Massimiliano London WC1E 6BT (GB) (74) Representative: Mewburn Ellis LLP  Aurora Building Counterslip Bristol BS1 6BX Bristol BS1 6BX (GB)