(19)

(11)

EP 4 418 971 A1

(12)

(43) Date of publication: 28.08.2024 Bulletin 2024/35 (21) Application number: 23814218.6 (22) Date of filing: 30.11.2023

(51) International Patent Classification (IPC):  A47L 5/30(2006.01) A47L 9/04(2006.01) (52) Cooperative Patent Classification (CPC): A47L 9/0411; A47L 9/0455; A47L 5/30; A47L 9/0477 (86) International application number: PCT/EP2023/083803 (87) International publication number: WO 2024/146719 (11.07.2024 Gazette 2024/28)

(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: 06.01.2023 CN 202310036132 10.03.2023 EP 23161255 (71) Applicant: Versuni Holding B.V. 5656 AE Eindhoven (NL)	(72) Inventors: GE, Chuang 5656 AE Eindhoven (NL) WANG, Haixin 5656 AE Eindhoven (NL) (74) Representative: Vollering, Stefanus Franciscus Maria  Versuni Holding B.V. High Tech Campus 42 5656 AE Eindhoven 5656 AE Eindhoven (NL)