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(11)

EP 4 068 997 A1

(12)

(43) Date of publication: 12.10.2022 Bulletin 2022/41 (21) Application number: 20825203.1 (22) Date of filing: 03.12.2020

(51) International Patent Classification (IPC):  A24B 15/10(2006.01) A24B 15/42(2006.01) A24D 1/02(2006.01) A24D 3/10(2006.01) A24B 15/16(2020.01) A24D 1/00(2020.01) A24D 3/06(2006.01) A24D 3/17(2020.01) (52) Cooperative Patent Classification (CPC): A24D 1/002; A24D 1/02; A24D 3/061; A24D 3/10; A24D 3/17; A24F 40/20; A24D 1/20; A24B 15/165; A24B 15/282 (86) International application number: PCT/GB2020/053106 (87) International publication number: WO 2021/111141 (10.06.2021 Gazette 2021/23)

(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 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: 06.12.2019 GB 201917917 03.08.2020 GB 202012051 03.08.2020 GB 202012049 (71) Applicant: British American Tobacco (Investments) Limited London WC2R 3LA (GB)	(72) Inventors: SYMONDS, Claire London WC2R 3LA (GB) BENJAK, Denis London WC2R 3LA (GB) HESFORD, Matthew London WC2R 3LA (GB) HOWELL, Kelly London WC2R 3LA (GB) DUBEY, Umesh London WC2R 3LA (GB) LONGDON, Adrian London WC2R 2PG (GB) (74) Representative: Beasley, Benjamin Oliver et al Venner Shipley LLP 200 Aldersgate London EC1A 4HD London EC1A 4HD (GB)