Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6731992 | Remotely accessible energy control system | — | 2004-05-04 |
| 6259224 | Electronic cancellation of DC motor noise | Dexter Smith, Joseph Schwartz | 2001-07-10 |
| 5627746 | Low cost controller | Dexter Smith, Michael McLoughlin | 1997-05-06 |
| 5563817 | Adaptive canceller filter module | Paul Friedlander, Jeffrey N. Denenberg | 1996-10-08 |
| 5510975 | Method of logical operations in home automation | — | 1996-04-23 |
| 5126681 | In-wire selective active cancellation system | John W. Gardner | 1992-06-30 |
| 5105377 | Digital virtual earth active cancellation system | — | 1992-04-14 |
| 5097923 | Active sound attenation system for engine exhaust systems and the like | John W. Gardner | 1992-03-24 |
| 4994792 | Fluid temperature monitoring system | — | 1991-02-19 |
| 4977600 | Sound attenuation system for personal seat | — | 1990-12-11 |
| 4878188 | Selective active cancellation system for repetitive phenomena | — | 1989-10-31 |
| 4862506 | Monitoring, testing and operator controlling of active noise and vibration cancellation systems | Harris B. Landgarten | 1989-08-29 |