Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5327489 | Method and apparatus for monitoring a network for customer signaling during the term of a call | Thomas W. Anderson, Elliott Baral, Ronald S. Byrd, Bernard W. Fecht, David S. Isenberg +3 more | 1994-07-05 |