Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6650633 | Monitor network with advanced intelligent network (AIN) for electronic surveillance | Charles H. Eppert, III, Barry Paul Pershan, Daniel C. Michaelis, Michael G. Pilkerton, Robert D. Farris +1 more | 2003-11-18 |
| 6636504 | Reverse billing of internet telephone calls | Edward F. Balkovich, David E. Young | 2003-10-21 |
| 6504907 | Call detail reporting for lawful surveillance | Robert D. Farris, Dale L. Bartholomew, Charles H. Eppert, III, Barry Paul Pershan, Daniel C. Michaelis +5 more | 2003-01-07 |
| 6233313 | Call detail reporting for lawful surveillance | Robert D. Farris, Dale L. Bartholomew, Charles H. Eppert, III, Barry Paul Pershan, Daniel C. Michaelis +5 more | 2001-05-15 |
| 6229887 | Advanced intelligent network (AIN) functionality for electronic surveillance | Charles H. Eppert, III, Barry Paul Pershan, Daniel C. Michaelis, Michael G. Pilkerton, Robert D. Farris +1 more | 2001-05-08 |
| 6097798 | Electronic surveillance in a public switched telephone network | Charles H. Eppert, III, Barry Paul Pershan, Daniel C. Michaelis, Michael G. Pilkerton, Robert D. Farris +1 more | 2000-08-01 |
| 6078648 | Advanced intelligent network (AIN) functionality for electronic surveillance | Charles H. Eppert, III, Robert D. Farris, Barry Paul Pershan, Michael G. Pilkerton | 2000-06-20 |