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(11)

EP 4 255 622 A1

(12)

(43) Date of publication: 11.10.2023 Bulletin 2023/41 (21) Application number: 21851692.0 (22) Date of filing: 06.12.2021

(51) International Patent Classification (IPC):  B01J 21/06(2006.01) B01J 31/00(2006.01) B01J 23/52(2006.01) B01J 35/00(2006.01) (52) Cooperative Patent Classification (CPC): B01J 21/063; B01J 23/52; B01J 35/004; B01J 35/0033; B01J 23/66; B01J 35/0013; B01J 37/0018; B01J 35/023; B01J 35/002; B01J 37/031; B01J 35/008; B01J 37/343 (86) International application number: PCT/GB2021/053183 (87) International publication number: WO 2022/123222 (16.06.2022 Gazette 2022/24)

(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: 07.12.2020 SG 10202012186T 02.09.2021 SG 10202109604P (71) Applicant: Oxford University Innovation Limited Oxford, OX2 0JB (GB)	(72) Inventors: KWAN, James Oxford, OX2 6LD (GB) FAN, Qianwenhao 639811 (SG) SU, Xiaoqian 643677 (SG) LIU, Paul Wen 637665 (SG) JONNALAGADDA, Umesh Sai 650191 (SG) BHARATULA, Lakshmi Deepika Pune Maharashtra 411038 (IN) (74) Representative: J A Kemp LLP  80 Turnmill Street London EC1M 5QU London EC1M 5QU (GB)