(19)

(11)

EP 4 540 471 A1

(12)

(43) Date of publication: 23.04.2025 Bulletin 2025/17 (21) Application number: 23738418.5 (22) Date of filing: 15.06.2023

(51) International Patent Classification (IPC):  E04B 1/36(2006.01) E04H 9/00(2006.01) B65D 90/00(2006.01) E04B 1/348(2006.01) E04H 1/12(2006.01) (52) Cooperative Patent Classification (CPC): E04B 1/3483; E04H 2001/1283; E04B 1/36; E04H 9/022; E04H 9/028 (86) International application number: PCT/EP2023/066114 (87) International publication number: WO 2023/242342 (21.12.2023 Gazette 2023/51)

(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: KH MA MD TN (30) Priority: 15.06.2022 GB 202208827 (71) Applicant: City St George's, University of London London EC1V 0HB (GB)	(72) Inventors: CORFAR, Dan-Adrian London EC1V 0HB (GB) TSAVDARIDIS, Konstantinos Daniel London EC1V 0HB (GB) (74) Representative: Milhench, Mark Lorne  First Thought IP Ltd The Ramblers Gents Lane, Shimpling Bury St. Edmunds, Suffolk IP29 4HP Bury St. Edmunds, Suffolk IP29 4HP (GB)