Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4418752 | Thermal oil recovery with solvent recirculation | Lyndon D. Boyer, Ardis L. Anderson | 1983-12-06 |
| 4265310 | Fracture preheat oil recovery process | William L. Martin, Jack McDaniel, Harry A. Wahl | 1981-05-05 |