Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6427439 | Method and system for NOx reduction | Lifeng Xu, Ching-Hsong Wu | 2002-08-06 |
| 6408616 | Diesel OBD-II system for detection of degradation of catalyst activity | Christopher John Mazur, Paul M. Laing | 2002-06-25 |