(19)

(11)

EP 4 539 699 A1

(12)

(43) Date of publication: 23.04.2025 Bulletin 2025/17 (21) Application number: 23732599.8 (22) Date of filing: 15.06.2023

(51) International Patent Classification (IPC):  A45D 1/16(2006.01) A45D 6/02(2006.01) A45D 1/04(2006.01) A45D 1/28(2006.01) (52) Cooperative Patent Classification (CPC): A45D 1/16; A45D 1/04; A45D 6/02; A45D 1/28 (86) International application number: PCT/EP2023/066057 (87) International publication number: WO 2023/242317 (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: 16.06.2022 EP 22179375 (71) Applicant: Koninklijke Philips N.V. 5656 AG Eindhoven (NL)	(72) Inventor: PANG, Chuen Yu Cyrus 5656 AG Eindhoven (NL) (74) Representative: Philips Intellectual Property & Standards  High Tech Campus 52 5656 AG Eindhoven 5656 AG Eindhoven (NL)