Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7029414 | Hub assembly with speed change | Xiaolan Ai | 2006-04-18 |
| 7000717 | Output power split hybrid electric drive system | Xiaolan Ai | 2006-02-21 |
| 6964627 | Output-split and compound-split infinitely variable transmission | Xiaolan Ai | 2005-11-15 |
| 6595884 | Continuous variable transmission | Xiaolan Ai | 2003-07-22 |