Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D505308 | Tool reversing lever | Pei Yang Lee | 2005-05-24 |
| D484374 | Tool reversing lever | Pei Yang Lee | 2003-12-30 |
| D477756 | Tool and reversing lever | Pei Yang Lee | 2003-07-29 |
| D474381 | Tool and reversing lever | Pei Yang Lee | 2003-05-13 |