Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7974276 | System and method for providing advanced calling features to a packet network-based communication device and packet network employing the same | — | 2011-07-05 |
| 6594230 | System and method for providing advanced calling features to a packet network-based communication device and packet network employing the same | — | 2003-07-15 |
| 6230186 | Private electronic message system | — | 2001-05-08 |
| 6137864 | Specifiable delete times for voice messaging | — | 2000-10-24 |
| 5950167 | Screen-less remote voice or tone-controlled computer program operations via telephone set | — | 1999-09-07 |
| 5848142 | Advanced call waiting processing | — | 1998-12-08 |
| 5784448 | Advanced call waiting processing | — | 1998-07-21 |
| 5764748 | Advanced call waiting processing | Eugene J. Rosenthal | 1998-06-09 |
| 5675627 | Integrated pager and calling card | — | 1997-10-07 |