(19)
(11) EP 4 479 602 A1

(12)

(43) Date of publication:
25.12.2024 Bulletin 2024/52

(21) Application number: 23836884.9

(22) Date of filing: 22.12.2023
(51) International Patent Classification (IPC): 
E04B 1/82(2006.01)
G10K 11/168(2006.01)
E04B 1/84(2006.01)
 E04B 1/86(2006.01)
E04B 1/80(2006.01)
(52) Cooperative Patent Classification (CPC):
E04B 1/86; E04B 1/8209; E04B 1/803; E04B 2001/8461; G10K 11/162
(86) International application number:
PCT/EP2023/087715
(87) International publication number:
WO 2024/141503 (04.07.2024 Gazette 2024/27)
(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: 30.12.2022 US 202263436369 P
12.01.2023 US 202363438727 P

(71) Applicant: Canetis GmbH
68307 Mannheim (DE)

(72) Inventors:
  • SCHICKANEDER, Christian
    90542 Eckental (DE)
  • PFEIL, Julian
    68165 Mannheim (DE)
  • BRÜSSAU, Michael
    71384 Weinstadt (DE)

(74) Representative: Prüfer & Partner mbB Patentanwälte · Rechtsanwälte 
Sohnckestraße 12
81479 München
81479 München (DE)

   


(54) SOUND REDUCTION DEVICES, SYSTEM COMPRISING SUCH A SOUND REDUCTION DEVICE, USE OF A POROUS ABSORBER FOR SOUND REDUCTION, USE OF SUCH A SOUND REDUCTION DEVICE, AND METHOD OF MANUFACTURING SUCH A SOUND REDUCTION DEVICE