(19)
(11) EP 4 823 694 A1

(12)

(43) Date of publication:
21.10.2026 Bulletin 2026/43

(21) Application number: 24821581.6

(22) Date of filing: 27.11.2024
(51) International Patent Classification (IPC): 
A62B 23/00(2006.01)
A41D 13/11(2006.01)
A62B 23/02(2006.01)
(52) Cooperative Patent Classification (CPC):
A62B 23/025; A62B 23/00; A41D 13/1107
(86) International application number:
PCT/IB2024/061958
(87) International publication number:
WO 2025/125969 (19.06.2025 Gazette 2025/25)
(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:
GE KH MA MD TN

(30) Priority: 15.12.2023 US 202363611010 P

(71) Applicant: 3M Innovative Properties Company
Saint Paul, Minnesota 55133-3427 (US)

(72) Inventors:
  • WANG, Wenli
    Saint Paul, Minnesota 55133-3427 (US)
  • GROTH, Austin D.
    Saint Paul, Minnesota 55133-3427 (US)
  • FRANKEL, Kevin A.
    Saint Paul, Minnesota 55133-3427 (US)
  • SEBASTIAN, John M.
    Saint Paul, Minnesota 55133-3427 (US)
  • SCHULTZ, Nathan E.
    Saint Paul, Minnesota 55133-3427 (US)
  • ZILLIG, Daniel J.
    Saint Paul, Minnesota 55133-3427 (US)
  • KIRK, Seth M.
    Saint Paul, Minnesota 55133-3427 (US)
  • WENDLAND, Michael S.
    Saint Paul, Minnesota 55133-3427 (US)

(74) Representative: Mathys & Squire 
Theatinerstraße 8
80333 München
80333 München (DE)

   


(54) RESPIRATORY PROTECTION DEVICES AND METHODS OF MANUFACTURING THE SAME