Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6614956 | Bidirectional WDM optical communication system with bidirectional optical service channels | Yongzhang Leng | 2003-09-02 |
| 6438286 | Protection switching in bidirectional WDM optical communication networks with transponders | Gary L. Duerksen | 2002-08-20 |
| 6411412 | WDM optical communication network with data bridging plural optical channels between optical waveguides | Leon Li-Feng Jiang, Raul B. Montalvo, Wenli Yu | 2002-06-25 |
| 6348985 | Bidirectional WDM optical communication network with data bridging plural optical channels between bidirectional optical waveguides | Leon Li-Feng Jiang, Raul B. Montalvo, Wenli Yu | 2002-02-19 |
| 6344915 | System and method for shutting off an optical energy source in a communication system having optical amplifiers | Stephen B. Alexander, Cecil D. Smith, Roy C. Litz, Robert Corwin, Donald T. Newman | 2002-02-05 |
| 6339663 | Bidirectional WDM optical communication system with bidirectional optical service channels | Yongzhang Leng | 2002-01-15 |
| 6321004 | Protection switching in bidirectional WDM optical communication networks | Gary L. Duerksen | 2001-11-20 |
| 6307986 | Protection switching in bidirectional WDM optical communication networks with transponders | Gary L. Duerksen | 2001-10-23 |
| 6288811 | WDM optical communication system with channels supporting multiple data formats | Leon Li-Feng Jiang, Raul B. Montalvo, Wenli Yu | 2001-09-11 |
| 6278535 | SONET Jo byte message monitoring system | — | 2001-08-21 |