Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11135575 | Apparatus for regeneration of acidic ionic liquid without addition of a hydrogenation catalyst | Michael John Girgis, Bong-Kyu Chang, Hye Kyung Cho Timken, Steven Xugi Song, Michael S. Driver | 2021-10-05 |
| 10934493 | Extraction of heavy polynuclear aromatics from heavy oil | Saleh Elomari, Hye Kyung Cho Timken, Jeff William Johns | 2021-03-02 |
| 10888857 | Ionic liquid catalyst regeneration with reduced hydrogen amounts | Elizabeth Carter, Douglas A. Nafis, Bong-Kyu Chang, Hye Kyung Cho Timken, Michael John Girgis | 2021-01-12 |