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(11)

EP 4 561 384 A1

(12)

(43) Date of publication: 04.06.2025 Bulletin 2025/23 (21) Application number: 23750733.0 (22) Date of filing: 13.07.2023

(51) International Patent Classification (IPC):  A24F 40/51(2020.01) A24F 40/05(2020.01) A24F 40/53(2020.01) A24F 40/40(2020.01) (52) Cooperative Patent Classification (CPC): A24F 40/51; A24F 40/40; A24F 40/05; A24F 40/53 (86) International application number: PCT/IB2023/057198 (87) International publication number: WO 2024/023623 (01.02.2024 Gazette 2024/05)

(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: 25.07.2022 US 202217872372 (71) Applicant: RAI Strategic Holdings, Inc. Winston-Salem, NC 27101 (US)	(72) Inventor: DAUGHERTY, Sean A. Winston-Salem, North Carolina 27101 (US) (74) Representative: D Young & Co LLP  3 Noble Street London EC2V 7BQ London EC2V 7BQ (GB)