Glenn E. Warnaka

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Erie, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Active attenuation of noise in a closed structure
- Patent number 4,562,589
- Issue date Dec 31, 1985
- Lord Corporation
- Glenn E. Warnaka
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Structure for absorbing acoustic and other wave energy
- Patent number 4,477,505
- Issue date Oct 16, 1984
- Lord Corporation
- Glenn E. Warnaka
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Active acoustic attenuator
- Patent number 4,473,906
- Issue date Sep 25, 1984
- Lord Corporation
- Glenn E. Warnaka
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Sound absorbing structure
- Patent number 4,339,018
- Issue date Jul 13, 1982
- Lord Corporation
- Glenn E. Warnaka
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Sound absorbing structure
- Patent number 4,243,117
- Issue date Jan 6, 1981
- Lord Corporation
- Glenn E. Warnaka
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Sound absorbing structure
- Patent number 4,141,433
- Issue date Feb 27, 1979
- Lord Corporation
- Glenn E. Warnaka
- G10 - MUSICAL INSTRUMENTS ACOUSTICS