Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7530552 | Exhaust gas treatment device and method | Joseph J. Rumell, Fred A. VanDevander | 2009-05-12 |
| 7192469 | Exhaust treatment device, system and methods for internal combustion engines | Fred A. VanDevander, Joseph J. Rumell | 2007-03-20 |