Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6296822 | Process for manufacturing nox traps with improved sulfur tolerance | Jeffrey Scott Hepburn, William L. H. Watkins | 2001-10-02 |
| 6164065 | After treatment system for a variable displacement engine | Jeffrey Scott Hepburn | 2000-12-26 |