Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849095 | Process for hydrogenating a hydrocarbonaceous charge stock | Russell W. Johnson, Lee Hilfman | 1989-07-18 |
| 4719007 | Process for hydrotreating a hydrocarbonaceous charge stock | Russell W. Johnson, Lee Hilfman | 1988-01-12 |