Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 6324280 | Optimum routing of calls over the public switched telephone network and the internet | James Patrick Dunn | 2001-11-27 | $25,794,000 |
| 5309501 | Arrangement for detecting fraudulently identified mobile stations in a cellular mobile telecommunications network | Chinmei Chen Lee, Dennis J. Wiest | 1994-05-03 |