Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6643376 | Method and apparatus for individual control of audio to loudspeakers located from a central control | Mark S. Ackerman, Richard L. Liddell | 2003-11-04 |
| 5392055 | Radio antenna | Richard J. Kaufman | 1995-02-21 |
| 4894535 | Radon gas detector | Russell W. Sherwood | 1990-01-16 |
| 4890878 | Vehicular armrest | Eli Harary, Cathy Harary, Russell W. Sherwood | 1990-01-02 |
| 4801944 | Antenna | Russell W. Sherwood | 1989-01-31 |
| 4792803 | Traffic monitoring and reporting system | Russell W. Sherwood | 1988-12-20 |