Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5774565 | Electronic cancellation of ambient noise in telephone headset | Roger David Benning, Elliot Andrew Fischer, Patricia Lee Greene, Charles Sanford | 1998-06-30 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5774565 | Electronic cancellation of ambient noise in telephone headset | Roger David Benning, Elliot Andrew Fischer, Patricia Lee Greene, Charles Sanford | 1998-06-30 |