Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6188764 | Over-voltage protection circuit for use with a telephone appliance | Jingwei Lin | 2001-02-13 |
| 6088446 | Protection circuit for use with a telephone appliance and methods of use | — | 2000-07-11 |