(19)

(11)

EP 4 823 752 A1

(12)

(43) Date of publication: 21.10.2026 Bulletin 2026/43 (21) Application number: 24828119.8 (22) Date of filing: 11.12.2024

(51) International Patent Classification (IPC):  B01J 23/83(2006.01) B01J 37/03(2006.01) B01J 23/84(2006.01) C10K 3/02(2006.01) (52) Cooperative Patent Classification (CPC): B01J 23/83; B01J 23/84; C10K 3/026; B01J 37/031 (86) International application number: PCT/GB2024/053072 (87) International publication number: WO 2025/125790 (19.06.2025 Gazette 2025/25)

(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: 12.12.2023 GB 202318921 (71) Applicant: OXCCU Tech Ltd Oxford OX5 1RA (GB)	(72) Inventors: YAO, Benzhen Begbroke Oxfordshire OX5 1PF (GB) XIAO, Tiancun Begbroke Oxfordshire OX5 1PF (GB) YANG, Dan Begbroke Oxfordshire OX5 1PF (GB) (74) Representative: Barker Brettell LLP  100 Hagley Road Edgbaston Birmingham, West Midlands B16 8QQ Birmingham, West Midlands B16 8QQ (GB)