Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5365577 | Telecommunication display system | Richard A. Davis, Charles J. Fette, Anthony J. Brittain, Peter Mathys | 1994-11-15 |
| 4493073 | Maintenance of stored program controlled switching systems | Jerome J. Zelenski | 1985-01-08 |
| 4485469 | Time slot interchanger | — | 1984-11-27 |
| 4187399 | Call state processor for a time division switching system | Thomas G. Maxfield | 1980-02-05 |