Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 6240173 | Virtual end office in a switched telephone network | Bruce L. Trumbo | 2001-05-29 | $5,976,000 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 6240173 | Virtual end office in a switched telephone network | Bruce L. Trumbo | 2001-05-29 | $5,976,000 |