Geddes; Earl R.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Geddes; Earl R..The latest application filed is for "low frequency transducer enclosure".
- Geddes; Earl R. - Northville MI
- Geddes; Earl R. - Livonia MI
| Patent | Date |
|---|---|
| Low frequency transducer enclosure Grant 6,782,112 - Geddes August 24, 2 | 2004-08-24 |
| Arbitration adjustment for acoustic reproduction systems Grant 5,469,510 - Blind , et al. November 21, 1 | 1995-11-21 |
| Temperature/environment-resistant transducer suspension Grant 5,455,396 - Willard , et al. October 3, 1 | 1995-10-03 |
| Dual bandpass secondary source Grant 5,432,857 - Geddes * July 11, 1 | 1995-07-11 |
| Signal processor for sound image enhancement Grant 5,420,929 - Geddes , et al. May 30, 1 | 1995-05-30 |
| Tandem transducer magnet structure Grant 5,323,466 - Geddes June 21, 1 | 1994-06-21 |
| Dual bandpass secondary source Grant 5,319,165 - Geddes June 7, 1 | 1994-06-07 |
| Integrated active vibration cancellation and machine diagnostic system Grant 5,313,407 - Tiernan , et al. May 17, 1 | 1994-05-17 |
| Protective anc loudspeaker membrane Grant 5,233,137 - Geddes August 3, 1 | 1993-08-03 |
| Internal ported band pass enclosure for sound cancellation Grant 5,229,556 - Geddes July 20, 1 | 1993-07-20 |
| Active muffler transducer arrangement Grant 5,119,902 - Geddes June 9, 1 | 1992-06-09 |
| Active muffler with dynamic tuning Grant 5,060,271 - Geddes October 22, 1 | 1991-10-22 |
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