Warnaka; Glenn E.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Warnaka; Glenn E..The latest application filed is for "vehicular loudspeaker system".
- Warnaka; Glenn E. - State College PA
- Warnaka; Glenn E. - Erie PA
| Patent | Date |
|---|---|
| Vehicular loudspeaker system Grant 6,356,641 - Warnaka , et al. March 12, 2 | 2002-03-12 |
| Piezoelectric transducers Grant 6,195,440 - Warnaka , et al. February 27, 2 | 2001-02-27 |
| Piezoelectric transducers Grant 5,838,805 - Warnaka , et al. November 17, 1 | 1998-11-17 |
| Signal separating system Grant 5,835,608 - Warnaka , et al. November 10, 1 | 1998-11-10 |
| Active noise control Grant 5,511,127 - Warnaka April 23, 1 | 1996-04-23 |
| Noise reducing system for voice microphones Grant 5,046,103 - Warnaka , et al. September 3, 1 | 1991-09-03 |
| Active attenuation of noise in a closed structure Grant 4,562,589 - Warnaka , et al. December 31, 1 | 1985-12-31 |
| Structure for absorbing acoustic and other wave energy Grant 4,477,505 - Warnaka October 16, 1 | 1984-10-16 |
| Active acoustic attenuator Grant 4,473,906 - Warnaka , et al. September 25, 1 | 1984-09-25 |
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