(19)

(11)

EP 4 203 733 A1

(12)

(43) Date of publication: 05.07.2023 Bulletin 2023/27 (21) Application number: 21770153.1 (22) Date of filing: 26.08.2021

(51) International Patent Classification (IPC):  A24F 40/51(2020.01) A24F 40/485(2020.01) (52) Cooperative Patent Classification (CPC): A24F 40/51; A24F 40/485; A24F 40/10 (86) International application number: PCT/EP2021/073583 (87) International publication number: WO 2022/043420 (03.03.2022 Gazette 2022/09)

(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: 28.08.2020 WO PCT/CN2020/112047 (71) Applicant: JT International S.A. 1202 Geneva (CH)	(72) Inventors: SHEN, Pifa 518102 Shenzhen (CN) LUO, Jian Cheng 1218 Le Grand-Saconnex (CH) (74) Representative: Santarelli  Tour Trinity 1 bis Esplanade de la Défense 92035 Paris La Défense Cedex 92035 Paris La Défense Cedex (FR)