Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4227743 | Method of thermal-mine recovery of oil and fluent bitumens | Leonid M. Ruzin, Jury A. Spiridonov, Boris A. Tjunkin, Vladimir P. Tabakov | 1980-10-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4227743 | Method of thermal-mine recovery of oil and fluent bitumens | Leonid M. Ruzin, Jury A. Spiridonov, Boris A. Tjunkin, Vladimir P. Tabakov | 1980-10-14 |