Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4935542 | Naphthenic acid amides | Sam Ferguson | 1990-06-19 |
| 4827033 | naphthenic acid amides | Sam Ferguson | 1989-05-02 |
| 4752381 | Upgrading petroleum and petroleum fractions | Sam Ferguson | 1988-06-21 |
| 4589979 | Upgrading heavy gas oils | Sam Ferguson | 1986-05-20 |