Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6823663 | Exhaust gas aftertreatment systems | Robert Henry Hammerle, Paul M. Laing, Paul Joseph Tennison, William Charles Ruona | 2004-11-30 |
| 6810661 | Method and system for freeze protecting liquid NOx reductants for vehicle application | Rolf Backes | 2004-11-02 |