Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9199213 | Fixed-bed catalyst support for a hydroprocessing reactor | Ralph Evans Killen | 2015-12-01 |
| 9079141 | Vortex-type mixing device for a down-flow hydroprocessing reactor | Abdenour Kemoun, Ralph Evans Killen, Krishniah Parimi, Steven Xuqi Song | 2015-07-14 |
| 8597595 | Multiphase contact and distribution apparatus for hydroprocessing | Zackory Akin, Abdenour Kemoun, Ralph E. Killen, Krishniah Parimi, Steven Xuqi Song +1 more | 2013-12-03 |
| 8372354 | Multiphase contact and distribution apparatus for hydroprocessing | Ralph E. Killen, Steven Xuqi Song, Abdenour Kemoun, Steve Souers, Krishniah Parimi +1 more | 2013-02-12 |
| 8202498 | Multiphase contact and distribution apparatus for hydroprocessing | Ralph E. Killen, Steven Xuqi Song, Abdenour Kemoun, Steve Souers, Krishniah Parimi +1 more | 2012-06-19 |