Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6188759 | Method and apparatus of processing a call in a telecommunications network | Jeanene M. Lorenzen, Charles M. Homola, Bernard J. Gerault, Meanhuy S. Chen, Kevin Canady | 2001-02-13 |
| 5577113 | Apparatus and method for virtual private telephone line with automatic ring down | Douglas R. Cardy, Charles P. Shelton | 1996-11-19 |
| 5487110 | Apparatus and method for virtual private telephone line with automatic ring down | Douglas R. Cardy, Charles P. Shelton | 1996-01-23 |