(19)

(11)

EP 4 580 431 A1

(12)

(43) Date of publication: 09.07.2025 Bulletin 2025/28 (21) Application number: 23767995.6 (22) Date of filing: 29.08.2023

(51) International Patent Classification (IPC):  A24D 1/22(2020.01) A24F 42/60(2020.01) (52) Cooperative Patent Classification (CPC): A24D 1/22; A24F 42/60 (86) International application number: PCT/IB2023/058537 (87) International publication number: WO 2024/047530 (07.03.2024 Gazette 2024/10)

(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: 30.08.2022 US 202217898990 (71) Applicant: R. J. Reynolds Tobacco Company Winston-Salem, North Carolina 27101 (US)

(72) Inventors: ALLER, Jared Winston-Salem, North Carolina 27101 (US) JACKSON, Thaddeus Winston-Salem, North Carolina 27101 (US) CLECKLEY, Karen H. Winston-Salem, North Carolina 27101 (US) RENNECKER, Daniel W. Winston-Salem, North Carolina 27101 (US) NETTENSTROM, Matthew J. Winston-Salem, North Carolina 27101 (US) SCHENNUM, Steven M. Winston-Salem, North Carolina 27101 (US) (74) Representative: Dehns  10 Old Bailey London EC4M 7NG London EC4M 7NG (GB)