Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6516075 | Hearing enhancement system | Richard N. Silver | 2003-02-04 |
| 4357709 | Apparatus for regenerating signals within a frequency band | Michael Brett Butler, Peter M. Grant | 1982-11-02 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6516075 | Hearing enhancement system | Richard N. Silver | 2003-02-04 |
| 4357709 | Apparatus for regenerating signals within a frequency band | Michael Brett Butler, Peter M. Grant | 1982-11-02 |