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(11)

EP 4 440 369 A1

(12)

(43) Date of publication: 09.10.2024 Bulletin 2024/41 (21) Application number: 22817934.7 (22) Date of filing: 15.11.2022

(51) International Patent Classification (IPC):  A45D 1/06(2006.01) A45D 2/00(2006.01) A45D 1/04(2006.01) (52) Cooperative Patent Classification (CPC): A45D 1/06; A45D 1/04; A45D 2/001; A45D 2200/202 (86) International application number: PCT/EP2022/081864 (87) International publication number: WO 2023/099191 (08.06.2023 Gazette 2023/23)

(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: 02.12.2021 EP 21211885 (71) Applicant: Koninklijke Philips N.V. 5656 AG Eindhoven (NL)	(72) Inventors: SIU, Ka Wai 5656 AG Eindhoven (NL) NG, Chor Man 5656 AG Eindhoven (NL) (74) Representative: Philips Intellectual Property & Standards  High Tech Campus 52 5656 AG Eindhoven 5656 AG Eindhoven (NL)