Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4664788 | Multi-stage coal liquefaction and fractionation method | Donald E. Rhodes | 1987-05-12 |
| 4629554 | Coal liquefaction with coal tar solvent | Donald E. Rhodes | 1986-12-16 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4664788 | Multi-stage coal liquefaction and fractionation method | Donald E. Rhodes | 1987-05-12 |
| 4629554 | Coal liquefaction with coal tar solvent | Donald E. Rhodes | 1986-12-16 |