Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6044422 | Modem for connection to a telephone line through a either portable computer connector or a docking station via an isolation circuit | — | 2000-03-28 |
| 5931929 | Modem for connection to a telephone line through a either portable computer connector or a docking station | Robin Castell | 1999-08-03 |
| 5428671 | Modem for tight coupling between a computer and a cellular telephone | Don A. Dykes, Robin Castell, Andrew C. Clark, Paul Nagel, Randall L. Jones +1 more | 1995-06-27 |