Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5340467 | Process for recovery of hydrocarbons and rejection of sand | Armand A. Gregoli, John A. Hamshar, Daniel P. Rimmer, Andrew M. Olah | 1994-08-23 |
| 5316664 | Process for recovery of hydrocarbons and rejection of sand | Armand A. Gregoli, John A. Hamshar, Daniel P. Rimmer | 1994-05-31 |
| 5083613 | Process for producing bitumen | Armand A. Gregoli, Andrew M. Olah, John A. Hamshar, Daniel P. Rimmer | 1992-01-28 |
| 4406499 | Method of in situ bitumen recovery by percolation | — | 1983-09-27 |