(19)

(11)

EP 4 297 601 A1

(12)

(43) Date of publication: 03.01.2024 Bulletin 2024/01 (21) Application number: 22783953.7 (22) Date of filing: 31.03.2022

(51) International Patent Classification (IPC):  A24F 42/10(2020.01) A24F 42/60(2020.01) (52) Cooperative Patent Classification (CPC): A24F 42/60; A24F 42/10; A24B 15/16; A24B 15/287 (86) International application number: PCT/CN2022/084567 (87) International publication number: WO 2022/213886 (13.10.2022 Gazette 2022/41)

(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 MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 06.04.2021 CN 202120690971 U (71) Applicant: Hon, Lik Beijing 100089 (CN)	(72) Inventor: Hon, Lik Beijing 100089 (CN) (74) Representative: Murgitroyd & Company  Murgitroyd House 165-169 Scotland Street Glasgow G5 8PL Glasgow G5 8PL (GB)