Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6813882 | System and method for removing NOx from an emission control device | Robert Henry Hammerle | 2004-11-09 |
| 6810660 | System for minimizing the impact of poisoning of automotive exhaust aftertreatment systems | Carolyn Parks Hubbard, Gang Guo, Lifeng Xu, Robert Walter McCabe | 2004-11-02 |
| 6684631 | Method and system for reducing NOx tailpipe emissions of a lean-burn internal combustion engine | Gopichandra Surnilla, Jerry D. Robichaux, Michael John Cullen | 2004-02-03 |