Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7289610 | Digital subscriber line service over loaded loops | Gordon Bremer, William L. Betts, Joseph Q. Chapman | 2007-10-30 |
| 6310864 | Voice echo cancellation for SVD modems | Anthony A. Tzouris | 2001-10-30 |
| 5983271 | Method for processing asynchronous low-level protocols in a communication device to off load the main processor | J. Scott Alexander, Joseph Q. Chapman, P. Michael Henderson | 1999-11-09 |
| 5444704 | Dial restoral method and apparatus | P. Michael Henderson | 1995-08-22 |