Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6735208 | LAN telephone system | Ernst B. Riemann, Alan Weir, David F. Niesman, M. A. Kergozou | 2004-05-11 |
| 5892764 | ATM LAN telephone system | Ernst B. Riemann, Alan Weir, David F. Niesman, M. A. Kergozou | 1999-04-06 |