Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11939138 | Facial tissue box with adjustable height | Kevin Julian Chang | 2024-03-26 |
| 6857321 | Proximity sensor system having a proximity sensor with a bipolar signal output | — | 2005-02-22 |
| 6505504 | Method and device for a real time measurement of output torque of an automobile engine | Peter Chang, Thomas Chang | 2003-01-14 |