(19)
(11) EP 4 308 251 A1

(12)

(43) Date of publication:
24.01.2024 Bulletin 2024/04

(21) Application number: 22772374.9

(22) Date of filing: 15.03.2022
(51) International Patent Classification (IPC): 
A62B 18/02(2006.01)
A62B 18/06(2006.01)
A62B 23/00(2006.01)
 A62B 18/04(2006.01)
A62B 18/08(2006.01)
A62B 23/02(2006.01)
(52) Cooperative Patent Classification (CPC):
A62B 23/02; B03C 3/017; B03C 3/08; B03C 3/12; B03C 3/011; B03C 3/32; B03C 3/41; B03C 3/47; B03C 2201/10; B03C 3/025; B03C 2201/28; B03C 3/368; B03C 3/68; B03C 3/155; B03C 3/361; B03C 3/014; G21F 3/00; A62B 18/025
(86) International application number:
PCT/US2022/071174
(87) International publication number:
WO 2022/198213 (22.09.2022 Gazette 2022/38)
(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: 15.03.2021 WO PCT/US2021/022386
06.08.2021 US 202163230273 P
16.02.2022 US 202263310810 P

(71) Applicant: Henley, Julian
New Orleans, LA 70115 (US)

(72) Inventor:
  • Henley, Julian
    New Orleans, LA 70115 (US)

(74) Representative: Sayer, Kathryn Isis Ariel 
Kilburn & Strode LLP Lacon London 84 Theobalds Road
London WC1X 8NL
London WC1X 8NL (GB)

   


(54) ELECTRO-IONIC MASK DEVICES FOR IMPROVED PROTECTION FROM AIRBORNE BIOPATHOGENS