Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8693434 | Fixed-mobile communications with mid-session mode switching | Alan B. Johnston | 2014-04-08 |
| 8605711 | Small office or home office (SOHO) IP phone service | Alan B. Johnston, Steven L. Lass | 2013-12-10 |
| 7602748 | Fixed-mobile communications with mid-session mode switching | Alan B. Johnston | 2009-10-13 |