(19)

(11)

EP 4 294 217 A2

(12)

(88) Date of publication A3: 27.10.2022 (43) Date of publication: 27.12.2023 Bulletin 2023/52 (21) Application number: 22704782.6 (22) Date of filing: 14.02.2022

(51) International Patent Classification (IPC):  A24F 40/00(2020.01) A24F 40/465(2020.01) A24F 40/40(2020.01) (52) Cooperative Patent Classification (CPC): A24F 40/00; A24F 40/40; A24F 40/465 (86) International application number: PCT/EP2022/053492 (87) International publication number: WO 2022/175199 (25.08.2022 Gazette 2022/34)

(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: 19.02.2021 EP 21158266 (71) Applicant: Philip Morris Products S.A. 2000 Neuchâtel (CH)	(72) Inventors: EMMETT, Robert William 2000 Neuchâtel (CH) SAADE LATORRE, Eva 2000 Neuchâtel (CH) (74) Representative: Dowling, Ian  Reddie & Grose LLP The White Chapel Building 10 Whitechapel High Street London E1 8QS London E1 8QS (GB)