Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6728223 | Echo canceller system | Paul D. Litzenberger, John A. Fee, G. Michael Eastep | 2004-04-27 |
| 6404887 | Intra-call control of ancillary telecommunications equipment | Clint Allen Wagner | 2002-06-11 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6728223 | Echo canceller system | Paul D. Litzenberger, John A. Fee, G. Michael Eastep | 2004-04-27 |
| 6404887 | Intra-call control of ancillary telecommunications equipment | Clint Allen Wagner | 2002-06-11 |