Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6215570 | Optical switch | Andrew David Ellis, David M. Spirit | 2001-04-10 |
| 6091524 | Optical switch | Andrew David Ellis, David M. Spirit | 2000-07-18 |
| 5999287 | Node in optical TDM network | Andrew David Ellis | 1999-12-07 |
| 5917972 | Optical device | — | 1999-06-29 |