Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10519380 | Hydrocarbon extraction of oil from oil sand | Edward L. Diefenthal, Richard D. Jordan | 2019-12-31 |
| 10508242 | Vapor phase hydrocarbon extraction of oil from oil sand | Edward L. Diefenthal, Richard D. Jordan | 2019-12-17 |