Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6137874 | Method of using carrier information for enhanced call data processing by a telecommunications provider | Norris Brown, Gerhard Buhler, Yen-Ching Chen, Charles Grayson | 2000-10-24 |
| 5557664 | Calling party-paid wireless telephone service | Elaine G. Burns, Esther L. Davenport, Gary Munson, Barry S. Seip, Elaine I. Sze | 1996-09-17 |