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Hersh Acoustical Engineering, Inc.
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Westlake Village, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Active control source cancellation and active control Helmholtz res...
Patent number
6,201,872
Issue date
Mar 13, 2001
Hersh Acoustical Engineering, Inc.
Alan S. Hersh
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Hybrid mode-scattering/sound-absorbing segmented liner system and m...
Patent number
5,979,593
Issue date
Nov 9, 1999
Hersh Acoustical Engineering, Inc.
Edward J. Rice
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Patents Applications
last 30 patents
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