Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8515048 | Method of and system for automatically switching between free directory assistance service and chargeable directory assistance service | Richard J. Oldach, Michael Pellegrino, Dwight E. Scott | 2013-08-20 |
| 8233608 | Method of and system for automatically switching between free directory assistance service and chargeable directory assistance service | Richard J. Oldach, Michael Pellegrino, Dwight E. Scott | 2012-07-31 |
| 6999563 | Enhanced directory assistance automation | Michael G. Thorpe, Gregory J. Bielby | 2006-02-14 |