Patents per Year
Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 7120577 | Virtual presence | — | 2006-10-10 | $14,351,000 |
| 6898565 | Virtual presence | — | 2005-05-24 | $30,688,000 |
| 6526377 | Virtual presence | — | 2003-02-25 | $39,445,000 |
| 6377576 | Telephone call setup procedure | Nicholas Zwick | 2002-04-23 | $65,430,000 |
| 5912950 | Telephone network with normally off hook telephones | — | 1999-06-15 | $13,148,000 |
| 4674082 | PBX telephone system I/O interface | Stephen D. Flanagin, John R. Scantlin | 1987-06-16 | |
| 4556970 | PBX Telephone system remote synchronization | Stephen D. Flanagin, John R. Scantlin | 1985-12-03 | $9,646,000 |