Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9732687 | Perovskite oxide compounds for use in exhaust aftertreatment systems | David Brown, Chang Hwan Kim, Gongshin Qi, Steven J. Schmieg | 2017-08-15 |
| 9708949 | Exhaust aftertreatment system for a compression-ignition engine | Gongshin Qi, John T. Johnson | 2017-07-18 |
| 9597635 | Zeolite promoted silver based catalyst for NOx storage | Gongshin Qi, Steven J. Schmieg, Shouxian Ren | 2017-03-21 |