Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6722121 | Control strategy for regenerating a NOx adsorber catalyst in an exhaust system of an engine having a variable valve actuation mechanism | Xinqun Gui, Jinhui Sun, Steven Omachi, Xiaoyan Lei | 2004-04-20 |