Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D556189 | Telephone conferencing device | Christopher Bourne | 2007-11-27 |
| D539274 | Telephone conferencing device | Christopher Bourne | 2007-03-27 |
| D531999 | Telephone conferencing device | Christopher Bourne | 2006-11-14 |
| D499392 | Conferencing phone | Tracy A. Bathurst, Daniel James Teigen | 2004-12-07 |