Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6160991 | CATV frequency sweep testing remote unit | Daniel K. Chappell | 2000-12-12 |
| 5867206 | CATV frequency sweep testing using RF transmitter to generate test signals | Daniel K. Chappell | 1999-02-02 |
| 5585842 | CATV frequency sweep testing using RF transmitter to generate test signals | Daniel K. Chappell | 1996-12-17 |