Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6705273 | Combustion chamber | Xinqun Gui | 2004-03-16 |
| 6637402 | Piston having combustion chamber defined in the crown | — | 2003-10-28 |
| 6601561 | Combustion chamber | Xinqun Gui | 2003-08-05 |
| 6536404 | Piston having combustion chamber defined in the crown | Xingun Gui | 2003-03-25 |
| 6513476 | Piston having combustion chamber defined in the crown | Xinqun Gui | 2003-02-04 |