Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8342206 | Dual butterfly control valve and method of use | — | 2013-01-01 |
| 8281570 | Reducing agent injector having purge heater | Glenn B. Cox | 2012-10-09 |
| 8046988 | System having multiple valves operated by common controller | Andrew C. Heebink | 2011-11-01 |
| 7552584 | Common engine and exhaust treatment fuel system | Lifeng Wang, Rui Zhang, Curtis J. Graham, Andrew C. Heebink, Jack A. Merchant | 2009-06-30 |