Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5029158 | Protection switching in a multi-channel communications system | Kenneth A. Bobey | 1991-07-02 |
| 4837760 | Communications system with protection switching using individual selectors | John C. Ellson, Malcolm Betts | 1989-06-06 |
| 4646286 | Communications system with protection switching and channel identities | John C. Ellson, Malcolm Betts | 1987-02-24 |