(19)

(11)

EP 4 044 843 A1

(12)

(43) Date of publication: 24.08.2022 Bulletin 2022/34 (21) Application number: 20878561.8 (22) Date of filing: 20.10.2020

(51) International Patent Classification (IPC):  A24F 40/10(2020.01) A61M 15/00(2006.01) A61K 9/12(2006.01) (52) Cooperative Patent Classification (CPC): A61M 15/00; A61P 11/00; A61M 2202/0468; A61M 2210/1025; A61M 2207/00; A61M 11/00; A24B 15/167; A61K 9/127; A61K 9/1075; A61K 9/0078; A61K 31/05; A61K 31/352 (86) International application number: PCT/US2020/056541 (87) International publication number: WO 2021/081010 (29.04.2021 Gazette 2021/17)

(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 (30) Priority: 20.10.2019 US 201962923563 P (71) Applicant: Respira Technologies, Inc. Los Angeles, CA 90069 (US)	(72) Inventors: DANEK, Mario Los Angeles, CA 90048 (US) CHENG, Christopher, Kar-Heng Los Angeles, CA 90048 (US) WALSH, Joseph, Gene Los Angeles, CA 90025 (US) (74) Representative: Swindell & Pearson Limited  48 Friar Gate Derby DE1 1GY Derby DE1 1GY (GB)