Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6597691 | High performance switching | William R. George | 2003-07-22 |
| 4821034 | Digital exchange switch element and network | Robert S. Cornelius | 1989-04-11 |
| 4440066 | Digital pneumatic modulator | — | 1984-04-03 |