(19)

(11)

EP 4 798 998 A1

(12)

(43) Date of publication: 02.09.2026 Bulletin 2026/36 (21) Application number: 24798784.5 (22) Date of filing: 25.10.2024

(51) International Patent Classification (IPC):  G02B 21/00(2006.01) G02B 21/16(2006.01) G02B 21/08(2006.01) (52) Cooperative Patent Classification (CPC): G02B 21/0004; G02B 21/086; G02B 21/16; G02B 21/0008 (86) International application number: PCT/EP2024/080344 (87) International publication number: WO 2025/088196 (01.05.2025 Gazette 2025/18)

(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: 26.10.2023 GB 202316359 (71) Applicant: QBD (QS-IP) Limited St Helier, JE2 3QA (JE)	(72) Inventor: FÜRLE, Thomas 1262 Eysins (CH) (74) Representative: Marks & Clerk LLP  15 Fetter Lane London EC4A 1BW London EC4A 1BW (GB)