Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7058173 | Multi-stage isolation barrier circuitry and method for connection of a telephony device to a telephone line | Jefferson L. Gokingco, Timothy J. Dupuis | 2006-06-06 |
| 5659611 | Wrist telephone | — | 1997-08-19 |