Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7885657 | System and method of transitioning between cellular and voice over internet protocol communication | Dennis Dale Bicker | 2011-02-08 |
| 7577427 | System and method of transitioning between cellular and voice over internet protocol communication | Dennis Dale Bicker | 2009-08-18 |