Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6735208 | LAN telephone system | Ernst B. Riemann, Alan Weir, Randall Vyskocil, David F. Niesman | 2004-05-11 |
| 5892764 | ATM LAN telephone system | Ernst B. Riemann, Alan Weir, Randall Vyskocil, David F. Niesman | 1999-04-06 |