Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6446498 | Method for determining a condition of an exhaust gas recirculation (EGR) system for an internal combustion engine | David R. Schricker, Thomas R. Sandborg | 2002-09-10 |
| 6422220 | Internal combustion engine with an exhaust gas recirculation system | Noel R. Lepp, Cho Y. Liang | 2002-07-23 |
| 6363771 | Emissions diagnostic system | Cho Y. Liang | 2002-04-02 |