Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5601697 | Demetallation-High carbon conversion process, apparatus and asphalt products | Charles Benjamin Miller, Howard F. Moore, David P. Wesley, Robert H. Wombles, Roger E. Hayner +2 more | 1997-02-11 |