Inventor
WITTENMAYER KLAUS
DE5 patents
Patents
5 patentsUS4574915AMar 11, 1986
Sound barriers
STANKIEWICZ ALOIS DR GMBH27 citations87
US4655496AApr 7, 1987
Motor vehicle noise insulation
STANKIEWICZ ALOIS DR GMBH48 citations86
US5153388AOct 6, 1992
Sound insulating element having absorption properties for partition walls
STANKIEWICZ ALOIS DR GMBH38 citations85
US5000483AMar 19, 1991
Interior noise reduction in motor vehicles
STANKIEWICZ ALOIS DR GMBH19 citations79
US4663381AMay 5, 1987
Interior noise reduction in motor vehicles
STANKIEWICZ ALOIS DR GMBH15 citations71