Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4424135 | Emulsifier system for the tertiary recovery of oil | Harley F. Hardman | 1984-01-03 |
| 4358366 | Catalytic hydrocoking of residua | Robert A. Rightmire | 1982-11-09 |
| 4329236 | Technique for tertiary oil recovery | Keng Seng Chan | 1982-05-11 |
| 4325810 | Distillate yields by catalytically co-coking shale oil and petroleum residua | Robert A. Rightmire | 1982-04-20 |
| 4313835 | Emulsifier system for tertiary oil recovery | David Samuel Frazier | 1982-02-02 |