Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8545779 | Sulfur-tolerant perovskite NOx oxidation catalysts | Chang Hwan Kim | 2013-10-01 |
| 8409518 | Sulfur tolerant perovskite supported catalysts | Chang Hwan Kim, Wei Li | 2013-04-02 |
| 8006481 | Method and apparatus to selectively reduce NOx in an exhaust gas feedstream | Steven J. Schmieg, Ling Deng, Michael B. Viola, Jong-Hwan Lee | 2011-08-30 |
| 7943548 | Catalysts to reduce NOx in an exhaust gas stream and methods of preparation | Christopher R. Castellano, Ahmad Moini, Gerald Stephen Koermer, Howard Furbeck, Steven J. Schmieg | 2011-05-17 |
| 6936562 | Hydrothermally stable catalyst for improved lean NOx reduction | Byong K. Cho, Ayyappan Subbiah | 2005-08-30 |
| 6645448 | Hydrothermally stable catalyst for improved lean NOx reduction | Byong K. Cho, Ayyappan Subbiah | 2003-11-11 |