Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8279857 | Virtual PBX based on feature server modules | — | 2012-10-02 |
| 7746848 | Virtual PBX based on feature server modules | — | 2010-06-29 |
| 7248577 | Virtual PBX based on SIP and feature servers | — | 2007-07-24 |
| 6166682 | Radar device and object detection method | Masanori Kosugi | 2000-12-26 |