Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7123839 | System and method for transmitting signals over a fiber strand | John W. Linebarger, Durga Prasad Satapathy | 2006-10-17 |
| 6731738 | Call tones in communication networks | Chaoxin Qiu, Shannon P. Silvus, Richard Nolan Kennedy, Jr., William Douskalis | 2004-05-04 |
| 6728362 | Continuity testing with call tone messaging in communication networks | Chaoxin Qiu, Shannon P. Silvus, Richard Nolan Kennedy, Jr., William Douskalis | 2004-04-27 |
| 6640318 | Continuity testing in communication networks | Chaoxin Qiu, Shannon P. Silvus, William Douskalis | 2003-10-28 |