Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6794552 | Hydrocarbon hydrogenation catalyst and process | Tin-Tack Peter Cheung, Darin B. Tiedtke, Gary A. Delzer | 2004-09-21 |
| 6737557 | Hydrocarbon upgrading process | Tin-Tack Peter Cheung, Steven A. Owen, Mark E. Lashier | 2004-05-18 |
| 6734130 | Hydrocarbon hydrogenation catalyst composition, a process of treating such catalyst composition, and a process of using such catalyst composition | Tin-Tack Peter Cheung, Joseph Bergmeister, III | 2004-05-11 |
| 6673239 | Hydrocarbon purificatin system regeneration | Bruce B. Randolph | 2004-01-06 |