Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8142552 | Filter purge system utilizing a reactive propellant | Steven F. Meister, Loran Hoffman, Philip Stephen Bruza | 2012-03-27 |
| 8097055 | System for treating exhaust gas | Loran Hoffman, Ryan M. Duffek, Richard A. Crandell | 2012-01-17 |
| 8092563 | System for treating exhaust gas | Richard A. Crandell, Ryan M. Duffek, Loran Hoffman | 2012-01-10 |
| 8083822 | System for treating exhaust gas | Loran Hoffman, Richard A. Crandell, Ryan M. Duffek | 2011-12-27 |
| D645882 | Engine exhaust treatment device housing | Ryan M. Duffek, Richard A. Crandell | 2011-09-27 |
| D645477 | Engine exhaust treatment device housing | Ryan M. Duffek, Richard A. Crandell | 2011-09-20 |
| D590419 | Engine exhaust treatment device housing | Ryan M. Duffek, Richard A. Crandell | 2009-04-14 |