Issued Patents All Time
Showing 1–3 of 3 patents
| 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, 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 | Richard J. Oldach, Dwight E. Scott, Robert C. Detrie | 2012-07-31 |
| 5933483 | Systems and methods for providing personal, non-geographic call management | Barry S. Seip | 1999-08-03 |