Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5231832 | High efficiency expansion turbines | — | 1993-08-03 |
| 5006062 | Treatment of solids in fluidized bed burner | Bernard S. Lee, Dharam V. Punwani | 1991-04-09 |
| 4971605 | Isothermal thermo-cyclic processing | — | 1990-11-20 |
| 4696746 | Two phase anaerobic digestion | Sambhunath Ghosh, David P. Chynoweth | 1987-09-29 |
| 4693682 | Treatment of solids in fluidized bed burner | Bernard S. Lee, Dharam V. Punwani | 1987-09-15 |
| 4692238 | Solvent extraction of organic oils and solvent recovery | William W. Bodle | 1987-09-08 |
| 4579562 | Thermochemical beneficiation of low rank coals | Dharamvir Punwani | 1986-04-01 |
| 4578176 | Fuel production by free fall countercurrent flow | — | 1986-03-25 |
| 4431509 | Hydrocarbon production by free fall countercurrent flow hydroconversion | — | 1984-02-14 |
| 4334026 | Hybrid bio-thermal liquefaction | David P. Chynoweth | 1982-06-08 |
| 4315758 | Process for the production of fuel gas from coal | Jitendra G. Patel, William A. Sandstrom | 1982-02-16 |
| 4289625 | Hybrid bio-thermal gasification | David P. Chynoweth | 1981-09-15 |