Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6715473 | EGR equipped diesel engines and lubricating oil compositions | Andrew J. D. Ritchie, Jacob Emert, Glen Fetterman, Antonio Gutierrez, Matthew Irving +2 more | 2004-04-06 |