Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5661789 | Method for coordinating data changes among central office switches | Robert A. Swanson | 1997-08-26 |
| 5623541 | Apparatus to manipulate and examine the data structure that supports digit analysis in telecommunications call processing | Daryl C. Lu, George L. Sicherman, Robert A. Swanson | 1997-04-22 |