Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8515048 | Method of and system for automatically switching between free directory assistance service and chargeable directory assistance service | Michael Pellegrino, Dwight E. Scott, Robert C. Detrie | 2013-08-20 |
| 8233608 | Method of and system for automatically switching between free directory assistance service and chargeable directory assistance service | Michael Pellegrino, Dwight E. Scott, Robert C. Detrie | 2012-07-31 |