Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6796381 | Apparatus for extraction of oil via underground drilling and production location | Richard E. Andrews | 2004-09-28 |
| 4595239 | Oil recovery mining apparatus | George Vranesh | 1986-06-17 |
| 4458945 | Oil recovery mining method and apparatus | George Vranesh | 1984-07-10 |