Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5995831 | Cellular-telephone central call-processing system utilizing object-oriented software in adjunct personal computer | Philip C. Gulliford, John Carter, Charles Tsao | 1999-11-30 |
| 5966649 | Cellular-telephone central call-processing system utilizing object-oriented software in adjunct personal computer for generating billing records | Philip C. Gulliford, John Carter, Charles Tsao | 1999-10-12 |