Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4441759 | In situ oil shale retort system | Irving G. Studebaker, Rudolf Kvapil, Thomas E. Ricketts | 1984-04-10 |
| 4440446 | Method for forming a module of in situ oil shale retorts | — | 1984-04-03 |
| 4440445 | Fluid outlet at the bottom of an in situ oil shale retort | — | 1984-04-03 |
| 4368921 | Non-subsidence method for developing an in situ oil shale retort | — | 1983-01-18 |
| 4296968 | In situ oil shale retort having horizontally offset pillars | Thomas E. Ricketts, Irving G. Studebaker | 1981-10-27 |
| 4272127 | Subsidence control at boundaries of an in situ oil shale retort development region | Irving G. Studebaker | 1981-06-09 |
| 4210366 | Method of detonating explosives for fragmenting oil shale formation toward a vertical free face | Richard D. Ridley | 1980-07-01 |
| 4201419 | Control of airblast during explosive expansion in an in situ oil shale retort | — | 1980-05-06 |
| 4194789 | Staggered array of explosives for fragmented oil shale formation toward a vertical free face | Irving G. Studebaker | 1980-03-25 |