Issued Patents 2021
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11073057 | Co clean-up catalyst, after treatment system and after treatment method | Chang Hwan Kim, Changho Jung | 2021-07-27 |
| 11035273 | After treatment system and after treatment method for lean-burn engine | Changho Jung, Chang Hwan Kim, Dohyung Kim | 2021-06-15 |
| 10982578 | CO clean-up catalyst, after treatment system and after treatment method | Chang Hwan Kim, Changho Jung | 2021-04-20 |
| 10914217 | Ammonia production catalyst and after treatment system | Chang Hwan Kim, Changho Jung | 2021-02-09 |