Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6404741 | Monitoring of a packet telephony device via a control device | Christos Alkiviadis Polyzois | 2002-06-11 |
| 6137874 | Method of using carrier information for enhanced call data processing by a telecommunications provider | Norris Brown, Yen-Ching Chen, Charles Grayson, Belkacem Manseur | 2000-10-24 |
| 6128285 | Monitoring of a packet telephony device via a control device | Christos Alkiviadis Polyzois | 2000-10-03 |
| 6104704 | Methods and apparatus for gathering and processing billing information for internet telephony | Bethany Scott Robinson | 2000-08-15 |
| 5898757 | Method and system for processing emergency service calls | Thomas A. Dunn, Gerald Joseph Kersus, Donald E. Levy, Lily Mui | 1999-04-27 |
| 4715547 | Ball mill | — | 1987-12-29 |
| 4629133 | Mill for flowable materials | — | 1986-12-16 |
| 4304362 | Ball mill | — | 1981-12-08 |