Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6951248 | Method of separating oil from geological formations | Lawrence Conaway, Roger K. Noble, Michael Keller | 2005-10-04 |
| 6576145 | Method of separating hydrocarbons from mineral substrates | Lawrence Conaway, Roger K. Noble, Michael Keller | 2003-06-10 |
| 5797332 | Closed loop gasification drying system | Michael Keller, John R. Petersen | 1998-08-25 |
| 5649820 | Flare burner | Michael Keller, John R. Petersen, Robert C. Phillips, Jeffrey T. Parker | 1997-07-22 |