Patents per Year
Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9074159 | Process for improving a re-refined lube oil stream | Steven F. Zink, Tom N. Kalnes | 2015-07-07 |
| 7730854 | Process for steam heat recovery from multiple heat streams | Jason Lee Stahlman | 2010-06-08 |
| 7575670 | Process for the production of low sulfur diesel from an asphaltene-containings feedstock | — | 2009-08-18 |