Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4274487 | Indirect thermal stimulation of production wells | Frank H. Hollingsworth, George R. Jenkins, John W. Kirkpatrick | 1981-06-23 |
| 4234042 | Direct combustion stimulation of a producing well | John W. Kirkpatrick | 1980-11-18 |
| 4222438 | Reservoir fluid sampling method and apparatus | Frank H. Hollingsworth | 1980-09-16 |