Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5359646 | Testing of distributed communications networks | Myranda Johnson | 1994-10-25 |
| 4491701 | Adaptive filter including a far end energy discriminator | Donald L. Duttweiler | 1985-01-01 |
| 4405840 | Echo canceler far end energy discriminator | — | 1983-09-20 |