(19)

(11)

EP 4 740 237 A1

(12)

(43) Date of publication: 13.05.2026 Bulletin 2026/20 (21) Application number: 24743908.6 (22) Date of filing: 03.07.2024

(51) International Patent Classification (IPC):  H01J 49/00(2006.01) (52) Cooperative Patent Classification (CPC): H01J 49/005 (86) International application number: PCT/IB2024/056521 (87) International publication number: WO 2025/008775 (09.01.2025 Gazette 2025/02)

(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: 06.07.2023 US 202363525269 P 27.09.2023 US 202363585763 P (71) Applicant: DH Technologies Development Pte. Ltd. Singapore 739256 (SG)	(72) Inventor: COLLINGS, Bruce Concord, Ontario L4K 4V8 (CA) (74) Representative: Maiwald GmbH  Elisenhof Elisenstraße 3 80335 München 80335 München (DE)