Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7496252 | Optical switch fabric with redundancy | Charles M. Corbalis, Roger Helkey | 2009-02-24 |
| 7248760 | Optical switch fabric with redundancy | Charles M. Corbalis, Roger Helkey | 2007-07-24 |
| 6950215 | Method and apparatus for monitoring optical switches | Roger Helkey, Tony Walter, Peter Hunt, David E. Welsh | 2005-09-27 |
| 6882766 | Optical switch fabric with redundancy | Charles M. Corbalis, Roger Helkey | 2005-04-19 |