Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7194079 | Methods and apparatus for forwarding facsimiles by phone and/or E-mail | Michael Straub | 2007-03-20 |
| 5896445 | Incoming call tracking with interactive data collection | Dorsey P. Brown, David A. Dague, Barry Paul Pershan, Lisa Michele PHILLIPS | 1999-04-20 |
| 5757894 | Virtual foreign exchange service | Alita M. Parker | 1998-05-26 |
| 5754634 | System and method for tracking and reporting incoming calls | David A. Dague, Dorsey P. Brown | 1998-05-19 |
| 5729598 | Telephone network with telecommuting features | — | 1998-03-17 |
| 5422941 | Extension of centrex services | George Robert Hasenauer, Von K. McConnell | 1995-06-06 |
| 5247571 | Area wide centrex | Von K. McConnell | 1993-09-21 |