Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7110391 | Transporting telephony signaling over a data network | Shane Rogers, Lyle R. Button | 2006-09-19 |
| 6069943 | Collaborative conferencing circuit | Larry John David, William Allan | 2000-05-30 |
| 5768367 | Method and apparatus for removing FSK in-band signaling | David Westergaard, Robert Turnbull, Aaron James Bobick | 1998-06-16 |