Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6263965 | Multiple drain method for recovering oil from tar sand | Brian H. Schmidt, Paul Jesper Jespersen | 2001-07-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6263965 | Multiple drain method for recovering oil from tar sand | Brian H. Schmidt, Paul Jesper Jespersen | 2001-07-24 |