Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4510037 | Hydrogenation process for solid carbonaceous feed materials using thermal countercurrent flow reaction zone | Paul D. Schuler | 1985-04-09 | $1,021,000 |
| 4404084 | Coal hydrogenation and deashing in ebullated bed catalytic reactor | Derk T. A. Huibers | 1983-09-13 | $1,328,000 |
| 4323446 | Multi-zone coal conversion process using particulate carrier material | Michael C. Chervenak, Marvin S. Rakow | 1982-04-06 | |
| 4217112 | Production of fuel gas by liquid phase hydrogenation of coal | — | 1980-08-12 |