Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6349163 | Dispersion compensating single mode waveguide | A. Joseph Antos, George E. Berkey, Daniel Warren Hawtof, Yanming Liu | 2002-02-19 |
| 5999679 | Dispersion compensating single mode waveguide | A. Joseph Antos, George E. Berkey, Daniel Warren Hawtof, Yanming Liu | 1999-12-07 |