Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7708112 | Waveguide phase plug | — | 2010-05-04 |
| 7095868 | Phase plug with optimum aperture shapes | — | 2006-08-22 |
| 7068805 | Acoustic waveguide for controlled sound radiation | — | 2006-06-27 |
| 6782112 | Low frequency transducer enclosure | — | 2004-08-24 |
| 6269318 | Method for determining transducer linear operational parameters | — | 2001-07-31 |
| 5469510 | Arbitration adjustment for acoustic reproduction systems | Henry F. Blind, Anthony J. Campagne, James Czekaj, Nicholas Lawrence Difiore, Andrew C. Krochmal +1 more | 1995-11-21 |
| 5455396 | Temperature/environment-resistant transducer suspension | Charles L. Willard, Robert H. Benedict | 1995-10-03 |
| 5432857 | Dual bandpass secondary source | — | 1995-07-11 |
| 5420929 | Signal processor for sound image enhancement | J. William Whikehart | 1995-05-30 |
| 5343533 | Transducer flux optimization | — | 1994-08-30 |
| 5323466 | Tandem transducer magnet structure | — | 1994-06-21 |
| 5319165 | Dual bandpass secondary source | — | 1994-06-07 |
| 5313407 | Integrated active vibration cancellation and machine diagnostic system | Timothy Arthur Tiernan, Mark L. Mollon | 1994-05-17 |
| 5233137 | Protective anc loudspeaker membrane | — | 1993-08-03 |
| 5229556 | Internal ported band pass enclosure for sound cancellation | — | 1993-07-20 |
| 5210805 | Transducer flux optimization | — | 1993-05-11 |
| 5119902 | Active muffler transducer arrangement | — | 1992-06-09 |
| 5063598 | Active noise control system with two stage conditioning | — | 1991-11-05 |
| 5060271 | Active muffler with dynamic tuning | — | 1991-10-22 |
| 5048470 | Electronically tuned intake manifold | Todd A. Gross | 1991-09-17 |