Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5985138 | Tar sands extraction process | — | 1999-11-16 |
| 5804067 | Apparatus for magnetic treatment of liquids | Wallace John McDonald, Kevin J. Humphreys, Karl Rudolph Kopecky, Gary W. Adams | 1998-09-08 |
| 5770049 | Tar sands extraction process | — | 1998-06-23 |
| 5626743 | Tar sands extraction process | — | 1997-05-06 |