Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8651205 | Direct power reversing drive axle | Robert Lee Chess, Chenyao Chen | 2014-02-18 |
| 7974760 | Advanced power-shift transmission control system | Hong-Chin Lin, Chenyao Chen, Robert Lee Chess | 2011-07-05 |