Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4633461 | Switching control for multiple stage time division switch | Randall G. Banton, Rajiv Bhatia, Donald B. Grust, David R. Johnson, Joseph G. Kneuer +4 more | 1986-12-30 |
| 4320258 | Arrangement for requesting service for called telephone subscribers | — | 1982-03-16 |