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Patent applications and USPTO patent grants for Punwani; Dharamvir.The latest application filed is for "slurry-phase gasification of carbonaceous materials using ultrasound in an aqueous media".
Patent | Date |
---|---|
Slurry-phase gasification of carbonaceous materials using ultrasound in an aqueous media Grant 4,954,246 - Punwani , et al. September 4, 1 | 1990-09-04 |
Thermochemical beneficiation of low rank coals Grant 4,579,562 - Tarman , et al. April 1, 1 | 1986-04-01 |
Production of synthetic hydrocarbon fuels from peat Grant 4,336,125 - Weil , et al. June 22, 1 | 1982-06-22 |
Heat-efficient method for dewatering solids Grant 4,223,449 - Bodle , et al. September 23, 1 | 1980-09-23 |
Process for production of hydrocarbon liquid from oil shale Grant 4,003,821 - Weil , et al. January 18, 1 | 1977-01-18 |
Oil shale hydrogasification process Grant 3,891,403 - Weil , et al. * June 24, 1 | 1975-06-24 |
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