Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6788201 | Motion sensitive switch and circuitry | Wen-Hsien Chen, Alex Kotoff | 2004-09-07 |
| 6031468 | Warning light adapted for use with a stop sign | Johnson Weng | 2000-02-29 |
| 5148145 | Automobile electronic alarm device | — | 1992-09-15 |