Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5264187 | Treatment of hydrocarbons | Michael E. Olbrich, Roger W. Fenstermaker | 1993-11-23 |
| 5082987 | Treatment of hydrocarbons | Michael E. Olbrich, Roger W. Fenstermaker | 1992-01-21 |