Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4588476 | Solid liquid extraction apparatus | — | 1986-05-13 |
| 4588478 | Apparatus for solar retorting of oil shale | — | 1986-05-13 |
| 4547019 | In-situ recovery of mineral values with sulfuric acid | — | 1985-10-15 |
| 4397731 | Discharge of solids | — | 1983-08-09 |
| 4376693 | Solid liquid extraction | — | 1983-03-15 |