Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7768697 | Spectrally resolved fast monitor | David J. Dougherty | 2010-08-03 |
| 7423804 | Spectrally resolved fast monitor | David J. Dougherty | 2008-09-09 |
| 6766113 | Control channel processor and switching mechanism | Mario F. Alvarez, David S. Levy, Jithamithra Sarathy, Anastasios Tzathas | 2004-07-20 |
| 6721502 | Shared optical protection ring architecture | Donald L. Husa, David S. Levy, Timothy O. Murphy, Gaylord W. Richards | 2004-04-13 |
| 6634807 | Optical transmission system including performance optimization | David S. Levy | 2003-10-21 |
| 6614567 | Apparatus and method for upgrading the capacity of wavelength division multiplexed optical networks | Wenhua Lin | 2003-09-02 |
| 6414771 | Optical transmission system including optical restoration | William J. Gartner | 2002-07-02 |
| 6317231 | Optical monitoring apparatus and method for network provisioning and maintenance | Gabriela Livescu | 2001-11-13 |
| 6262820 | Optical transmission system including optical restoration | — | 2001-07-17 |
| 6075629 | Optical protection switch employing an interference filter | Nathan Myron Denkin, Wei Fang, Maria F. Mendez | 2000-06-13 |
| 5742774 | Multi-ring SONET architecture having shared gateways daisy chained to complete the main and subsidiary ring controlled by a common master controller | Nicholas Paul DeVito, Philip M. Francisco, Steven H. Hersey, Wilhelm Kremer | 1998-04-21 |