Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6731738 | Call tones in communication networks | Chaoxin Qiu, Richard Nolan Kennedy, Jr., Michael J. Gettles, William Douskalis | 2004-05-04 |
| 6728362 | Continuity testing with call tone messaging in communication networks | Chaoxin Qiu, Richard Nolan Kennedy, Jr., Michael J. Gettles, William Douskalis | 2004-04-27 |
| 6684251 | Dynamic connection set-up in a communication network | Chaoxin Qiu, Timothy Gene Kelley, Matthew Barrow, Joseph Moore, Benjamin J. Ewy +1 more | 2004-01-27 |