Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853106 | Delayed coking process | Grant G. Karsner | 1989-08-01 |
| 4666585 | Disposal of petroleum sludge | Dale A. Figgins | 1987-05-19 |
| 4610780 | Method for removing sulfur-containing impurities from hydrocarbons | John Mooi | 1986-09-09 |