Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5796334 | Voltage monitoring circuit | Sidney Yiu Kwok Chen, Patricia Elaine Bibb, Ben Lee Bibb | 1998-08-18 |
| 5686887 | Electronic locating device | Sidney Yiu Kwok Chen, Patricia Elaine Bibb, Ben Lee Bibb | 1997-11-11 |