Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4476009 | Process for improving the hydrogen donor properties of a coal liquefaction solvent | Erven J. Kuhlmann, Richard P. Guptill, Dick Y. Jung | 1984-10-09 |
| 4326948 | Coal liquefaction | — | 1982-04-27 |