Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6002818 | Free-space optical signal switch arrangement | Joseph E. Ford | 1999-12-14 |
| 5959767 | Loss-less optical cross-connect | Wayne H. Knox | 1999-09-28 |
| 5930013 | Optical switched selector | Wayne H. Knox | 1999-07-27 |
| 5892606 | Maintenance of optical networks | Fred L. Heismann | 1999-04-06 |
| 5889610 | Optical protection switching system | Wayne H. Knox | 1999-03-30 |
| 5815613 | Optical switched distributor | Wayne H. Knox | 1998-09-29 |
| 5801863 | Maintenance of optical networks | Fred L. Heismann | 1998-09-01 |
| 5745274 | Maintenance of optical networks | Fred L. Heismann | 1998-04-28 |
| 5673142 | Optical amplifier with internal input signal monitoring tap | Hossein Izadpanah | 1997-09-30 |
| 5537243 | All-optical flip-flop | Clinton Randy Giles | 1996-07-16 |
| 5434701 | All-optical inverter | Clinton Randy Giles | 1995-07-18 |
| 5317439 | Automatic on-line monitoring and optimization of optical network switching nodes | Fred L. Heismann | 1994-05-31 |
| 5296956 | Performance monitoring and fault location for optical equipment, systems and networks | Fred L. Heismann | 1994-03-22 |
| 5181134 | Photonic cross-connect switch | Nattu V. Srinivasan | 1993-01-19 |
| 4878726 | Optical transmission system | — | 1989-11-07 |