Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9273585 | System and method for regenerating an auxiliary power unit exhaust filter | John Hiemstra, Eivind Stenersen, Wenzhong Zhang, Allan T. Hovda, Josh Kundert +4 more | 2016-03-01 |
| 8776502 | System and method for regenerating an auxiliary power unit exhaust filter | John Hiemstra, Eivind Stenersen, Wenzhong Zhang, Allan T. Hovda, Josh Kundert +2 more | 2014-07-15 |
| 8061129 | System and method to regenerate a diesel particulate filter | Jill N. Irlbeck, Erich Albert Lucht, John Hiemstra, Allan T. Hovda, John J. Shaw +7 more | 2011-11-22 |
| 7294162 | Exhaust filter | Steve Anderson, Jared D. Blaisdell, John Belisle, John T. Herman, John Hiemstra +1 more | 2007-11-13 |