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EP 4 536 020 A1

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(43) Date of publication: 16.04.2025 Bulletin 2025/16 (21) Application number: 23820522.3 (22) Date of filing: 07.04.2023

(51) International Patent Classification (IPC):  A24F 47/00(2020.01) H05B 1/02(2006.01) A24F 7/00(2006.01) A61M 15/00(2006.01) H05B 3/44(2006.01) F22B 1/28(2006.01) (52) Cooperative Patent Classification (CPC): A24F 7/00; H05B 3/04; H05B 2203/021; H05B 2203/022; H05B 2203/014; H05B 1/0227; A24F 40/10; A24F 40/485; A24F 40/40; A24F 40/70 (86) International application number: PCT/US2023/065519 (87) International publication number: WO 2023/239982 (14.12.2023 Gazette 2023/50)

(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: 10.06.2022 CN 202221462512 U 26.07.2022 CN 202221962805 U 29.07.2022 CN 202221999798 U 02.08.2022 CN 202222023768 U 04.11.2022 CN 202222938896 U (71) Applicant: Bidi Vapor, LLC Grant-Valkaria, Florida 32949 (US)

(72) Inventors: FAN, Fangqin Shenzhen 518105 (CN) FU, Youlong Shenzhen 518105 (CN) (74) Representative: Carpmaels & Ransford LLP  One Southampton Row London WC1B 5HA London WC1B 5HA (GB)