Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4692238 | Solvent extraction of organic oils and solvent recovery | Paul B. Tarman | 1987-09-08 |
| 4632731 | Carbonization and dewatering process | Francis S. Lau, Michael C. Mensinger | 1986-12-30 |
| 4336125 | Production of synthetic hydrocarbon fuels from peat | Sanford A. Weil, Dharamvir Punwani | 1982-06-22 |
| 4263125 | Production of synthetic hydrocarbon fuels from peat | Sanford A. Weil, Dharamvir Punwani | 1981-04-21 |
| 4223449 | Heat-efficient method for dewatering solids | Dharamvir Punwani | 1980-09-23 |