Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8047287 | Process for recovering heavy oil utilizing one or more membranes | Keith R. Minnich | 2011-11-01 |
| 7909098 | Process for recovering heavy oil utilizing one or more membranes | Keith R. Minnich | 2011-03-22 |