Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11073067 | Exhaust gas treatment system and method with reductant injection and close-coupled treatment element | Danan Dou, Eric J. Hruby | 2021-07-27 |
| 11022016 | Exhaust gas treatment system and method with improved regeneration | Danan Dou, Eric J. Hruby | 2021-06-01 |
| 10961887 | Integrated reductant mixer and heater apparatus for exhaust treatment systems | Danan Dou | 2021-03-30 |
| 10927740 | System for regulating exhaust emissions | Danan Dou, Taner Tuken, Thomas M. Harris | 2021-02-23 |