Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6775972 | Purification of exhaust gases | Ian Carmichael Wishart | 2004-08-17 |
| 6753294 | Catalytic wall-flow filter | Robert James Brisley, Anthony John Joseph Wilkins | 2004-06-22 |
| 6696031 | Treatment of exhaust gas | Robert James Brisley | 2004-02-24 |