Issued Patents 2022
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11486288 | Catalyzed soot filter with reduced ammonia oxidation | Kevin A. Hallstrom, Yuejin Li | 2022-11-01 |
| 11268420 | Exhaust gas treatment system with upstream SCR catalyst | Kenneth E. Voss, Kevin A. Hallstrom, Sandip D. Shah, Andrew Thoms, M. Shahjahan Kazi +1 more | 2022-03-08 |