Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6732507 | NOx aftertreatment system and method for internal combustion engines | Ryan C. Roecker, Charles E. Roberts, Jr., Daniel W. Stewart | 2004-05-11 |
| 6679224 | Method and apparatus for operating a diesel engine under stoichiometric or slightly fuel-rich conditions | — | 2004-01-20 |