Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4211631 | Coal liquefaction process employing multiple recycle streams | Norman L. Carr, Ronald Schleppy, Jr. | 1980-07-08 |
| 4203823 | Combined coal liquefaction-gasification process | Norman L. Carr, Ronald Schleppy, Jr., Bruce K. Schmid | 1980-05-20 |